The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_0). At the point of the last release, this superfamily was named:

"
Immunoglobulins
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 204: Major histocompatibility complex, class I-related ...

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 15 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Protein binding GO:0005515
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
10 Q29983 (/IPI) Q30201 (/IPI) Q30201 (/IPI) Q30201 (/IPI) Q8HWA4 (/IPI) Q8HWA5 (/IPI) Q8HWE5 (/IPI) Q8HWE6 (/IPI) Q8HWE7 (/IPI) Q95460 (/IPI)
Transferrin receptor binding GO:1990459
Interacting selectively and non-covalently with the transferrin receptor.
4 P70387 (/IPI) Q30201 (/IPI) Q30201 (/IPI) Q30201 (/IPI)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
3 Q30201 (/IPI) Q30201 (/IPI) Q30201 (/IPI)
Beta-2-microglobulin binding GO:0030881
Interacting selectively and non-covalently with beta-2-microglobulin.
3 Q30201 (/IPI) Q30201 (/IPI) Q30201 (/IPI)
Co-receptor binding GO:0039706
Interacting selectively and non-covalently with a coreceptor. A coreceptor acts in cooperation with a primary receptor to transmit a signal within the cell.
3 Q30201 (/IPI) Q30201 (/IPI) Q30201 (/IPI)
Natural killer cell lectin-like receptor binding GO:0046703
Interacting selectively and non-covalently with a lectin-like natural killer cell receptor.
2 Q29980 (/IDA) Q29983 (/IDA)
Natural killer cell lectin-like receptor binding GO:0046703
Interacting selectively and non-covalently with a lectin-like natural killer cell receptor.
2 Q8HWE5 (/ISO) Q8HWE6 (/ISO)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 P70387 (/ISO)
Beta-2-microglobulin binding GO:0030881
Interacting selectively and non-covalently with beta-2-microglobulin.
1 P70387 (/ISO)
MHC class I receptor activity GO:0032393
Combining with an MHC class I protein complex to initiate a change in cellular activity. Class I here refers to classical class I molecules.
1 Q95460 (/TAS)
Co-receptor binding GO:0039706
Interacting selectively and non-covalently with a coreceptor. A coreceptor acts in cooperation with a primary receptor to transmit a signal within the cell.
1 P70387 (/ISO)
MHC class II protein binding GO:0042289
Interacting selectively and non-covalently with major histocompatibility complex class II molecules; a set of molecules displayed on cell surfaces that are responsible for lymphocyte recognition and antigen presentation.
1 U3PTD3 (/IPI)
Peptide antigen binding GO:0042605
Interacting selectively and non-covalently with an antigen peptide.
1 F1CN43 (/IDA)
Natural killer cell lectin-like receptor binding GO:0046703
Interacting selectively and non-covalently with a lectin-like natural killer cell receptor.
1 Q29983 (/IPI)
Transferrin receptor binding GO:1990459
Interacting selectively and non-covalently with the transferrin receptor.
1 P70387 (/ISO)

There are 84 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Negative regulation of proteasomal ubiquitin-dependent protein catabolic process GO:0032435
Any process that stops, prevents, or reduces the frequency, rate or extent of the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, and mediated by the proteasome.
4 P70387 (/IC) Q30201 (/IC) Q30201 (/IC) Q30201 (/IC)
Iron ion homeostasis GO:0055072
Any process involved in the maintenance of an internal steady state of iron ions within an organism or cell.
4 P70387 (/IMP) Q30201 (/IMP) Q30201 (/IMP) Q30201 (/IMP)
Negative regulation of T cell cytokine production GO:0002725
Any process that stops, prevents, or reduces the frequency, rate, or extent of T cell cytokine production.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Cellular iron ion homeostasis GO:0006879
Any process involved in the maintenance of an internal steady state of iron ions at the level of a cell.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Response to iron ion GO:0010039
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an iron ion stimulus.
3 Q30201 (/IMP) Q30201 (/IMP) Q30201 (/IMP)
Positive regulation of gene expression GO:0010628
Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
3 Q30201 (/ISS) Q30201 (/ISS) Q30201 (/ISS)
Positive regulation of pathway-restricted SMAD protein phosphorylation GO:0010862
Any process that increases the rate, frequency or extent of pathway-restricted SMAD protein phosphorylation. Pathway-restricted SMAD proteins and common-partner SMAD proteins are involved in the transforming growth factor beta receptor signaling pathways.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
BMP signaling pathway GO:0030509
A series of molecular signals initiated by the binding of a member of the BMP (bone morphogenetic protein) family to a receptor on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Positive regulation of protein binding GO:0032092
Any process that activates or increases the frequency, rate or extent of protein binding.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Transferrin transport GO:0033572
The directed movement of transferrin into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
3 Q30201 (/TAS) Q30201 (/TAS) Q30201 (/TAS)
Regulation of iron ion transport GO:0034756
Any process that modulates the frequency, rate or extent of the directed movement of iron ions (Fe) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Positive regulation of receptor-mediated endocytosis GO:0048260
Any process that activates or increases the frequency, rate or extent of receptor mediated endocytosis, the uptake of external materials by cells, utilizing receptors to ensure specificity of transport.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Iron ion homeostasis GO:0055072
Any process involved in the maintenance of an internal steady state of iron ions within an organism or cell.
3 Q30201 (/IC) Q30201 (/IC) Q30201 (/IC)
Protein-containing complex assembly GO:0065003
The aggregation, arrangement and bonding together of a set of macromolecules to form a protein-containing complex.
3 Q30201 (/TAS) Q30201 (/TAS) Q30201 (/TAS)
Cellular response to iron ion GO:0071281
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an iron ion stimulus.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Positive regulation of peptide hormone secretion GO:0090277
Any process that increases the rate, frequency, or extent of the regulated release of a peptide hormone from secretory granules.
3 Q30201 (/IMP) Q30201 (/IMP) Q30201 (/IMP)
Negative regulation of receptor binding GO:1900121
Any process that stops, prevents or reduces the frequency, rate or extent of a protein or other molecule binding to a receptor.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Positive regulation of receptor binding GO:1900122
Any process that activates or increases the frequency, rate or extent of a protein or other molecule binding to a receptor.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Negative regulation of antigen processing and presentation of endogenous peptide antigen via MHC class I GO:1904283
Any process that stops, prevents or reduces the frequency, rate or extent of antigen processing and presentation of endogenous peptide antigen via MHC class I.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Positive regulation of ferrous iron binding GO:1904434
Any process that activates or increases the frequency, rate or extent of ferrous iron binding.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Positive regulation of transferrin receptor binding GO:1904437
Any process that activates or increases the frequency, rate or extent of transferrin receptor binding.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Regulation of protein localization to cell surface GO:2000008
Any process that modulates the frequency, rate or extent of protein localization to the cell surface.
3 Q30201 (/IMP) Q30201 (/IMP) Q30201 (/IMP)
Negative regulation of ubiquitin-dependent protein catabolic process GO:2000059
Any process that stops, prevents, or reduces the frequency, rate or extent of ubiquitin-dependent protein catabolic process
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Negative regulation of signaling receptor activity GO:2000272
Any process that stops, prevents or reduces the frequency, rate or extent of a signaling receptor activity.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Positive regulation of signaling receptor activity GO:2000273
Any process that activates or increases the frequency, rate or extent of signaling receptor activity.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Negative regulation of CD8-positive, alpha-beta T cell activation GO:2001186
Any process that stops, prevents or reduces the frequency, rate or extent of CD8-positive, alpha-beta T cell activation.
3 Q30201 (/IGI) Q30201 (/IGI) Q30201 (/IGI)
Immune response-activating cell surface receptor signaling pathway GO:0002429
A series of molecular signals initiated by the binding of an extracellular ligand to a receptor on the surface of a cell capable of activating or perpetuating an immune response.
2 Q8HWE5 (/ISO) Q8HWE6 (/ISO)
Response to oxidative stress GO:0006979
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
2 Q8HWE5 (/ISO) Q8HWE6 (/ISO)
Response to heat GO:0009408
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a heat stimulus, a temperature stimulus above the optimal temperature for that organism.
2 Q29980 (/IDA) Q29983 (/IDA)
Response to heat GO:0009408
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a heat stimulus, a temperature stimulus above the optimal temperature for that organism.
2 Q8HWE5 (/ISO) Q8HWE6 (/ISO)
Response to retinoic acid GO:0032526
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a retinoic acid stimulus.
2 Q8HWE5 (/ISO) Q8HWE6 (/ISO)
Gamma-delta T cell activation GO:0046629
The change in morphology and behavior of a gamma-delta T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.
2 Q29980 (/IDA) Q29983 (/IDA)
Gamma-delta T cell activation GO:0046629
The change in morphology and behavior of a gamma-delta T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.
2 Q8HWE5 (/ISO) Q8HWE6 (/ISO)
Negative regulation of defense response to virus by host GO:0050689
Any host process that results in the inhibition of antiviral immune response mechanisms, thereby facilitating viral replication. The host is defined as the larger of the organisms involved in a symbiotic interaction.
2 Q8HWE5 (/ISO) Q8HWE6 (/ISO)
Regulation of immune response GO:0050776
Any process that modulates the frequency, rate or extent of the immune response, the immunological reaction of an organism to an immunogenic stimulus.
2 Q29980 (/TAS) Q29983 (/TAS)
T cell mediated cytotoxicity GO:0001913
The directed killing of a target cell by a T cell through the release of granules containing cytotoxic mediators or through the engagement of death receptors.
1 Q29983 (/IDA)
Cytokine production involved in immune response GO:0002367
The appearance of a cytokine due to biosynthesis or secretion following a cellular stimulus contributing to an immune response, resulting in an increase in its intracellular or extracellular levels.
1 Q8HWB0 (/IMP)
Immune response to tumor cell GO:0002418
An immune system process that functions in the response of an organism to a tumor cell.
1 Q29983 (/IDA)
Immune response-activating cell surface receptor signaling pathway GO:0002429
A series of molecular signals initiated by the binding of an extracellular ligand to a receptor on the surface of a cell capable of activating or perpetuating an immune response.
1 Q29980 (/IDA)
Negative regulation of T cell cytokine production GO:0002725
Any process that stops, prevents, or reduces the frequency, rate, or extent of T cell cytokine production.
1 P70387 (/ISO)
Cellular iron ion homeostasis GO:0006879
Any process involved in the maintenance of an internal steady state of iron ions at the level of a cell.
1 P70387 (/ISO)
Cellular iron ion homeostasis GO:0006879
Any process involved in the maintenance of an internal steady state of iron ions at the level of a cell.
1 O35799 (/TAS)
Acute-phase response GO:0006953
An acute inflammatory response that involves non-antibody proteins whose concentrations in the plasma increase in response to infection or injury of homeothermic animals.
1 O35799 (/IEP)
Immune response GO:0006955
Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat.
1 Q95460 (/TAS)
Cellular response to DNA damage stimulus GO:0006974
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating damage to its DNA from environmental insults or errors during metabolism.
1 Q29983 (/IDA)
Response to oxidative stress GO:0006979
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
1 Q29980 (/IDA)
Female pregnancy GO:0007565
The set of physiological processes that allow an embryo or foetus to develop within the body of a female animal. It covers the time from fertilization of a female ovum by a male spermatozoon until birth.
1 O35799 (/IEP)
Response to iron ion GO:0010039
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an iron ion stimulus.
1 P70387 (/ISO)
Cellular response to iron ion starvation GO:0010106
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of deprivation of iron ions.
1 O35799 (/IEP)
Positive regulation of gene expression GO:0010628
Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
1 P70387 (/IMP)
Positive regulation of pathway-restricted SMAD protein phosphorylation GO:0010862
Any process that increases the rate, frequency or extent of pathway-restricted SMAD protein phosphorylation. Pathway-restricted SMAD proteins and common-partner SMAD proteins are involved in the transforming growth factor beta receptor signaling pathways.
1 P70387 (/ISO)
BMP signaling pathway GO:0030509
A series of molecular signals initiated by the binding of a member of the BMP (bone morphogenetic protein) family to a receptor on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 P70387 (/ISO)
Positive regulation of protein binding GO:0032092
Any process that activates or increases the frequency, rate or extent of protein binding.
1 P70387 (/ISO)
Response to retinoic acid GO:0032526
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a retinoic acid stimulus.
1 Q29980 (/IDA)
Interleukin-1 beta production GO:0032611
The appearance of interleukin-1 beta due to biosynthesis or secretion following a cellular stimulus, resulting in an increase in its intracellular or extracellular levels.
1 Q8HWB0 (/IMP)
Interleukin-17 production GO:0032620
The appearance of any member of the interleukin-17 family of cytokines due to biosynthesis or secretion following a cellular stimulus, resulting in an increase in its intracellular or extracellular levels.
1 Q8HWB0 (/IMP)
Negative regulation of natural killer cell activation GO:0032815
Any process that stops, prevents, or reduces the frequency, rate or extent of natural killer cell activation.
1 Q29983 (/IDA)
Regulation of iron ion transport GO:0034756
Any process that modulates the frequency, rate or extent of the directed movement of iron ions (Fe) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
1 P70387 (/ISO)
Natural killer cell mediated cytotoxicity GO:0042267
The directed killing of a target cell by a natural killer cell through the release of granules containing cytotoxic mediators or through the engagement of death receptors.
1 Q29983 (/IDA)
Hormone biosynthetic process GO:0042446
The chemical reactions and pathways resulting in the formation of any hormone, naturally occurring substances secreted by specialized cells that affects the metabolism or behavior of other cells possessing functional receptors for the hormone.
1 P70387 (/IMP)
Defense response to bacterium GO:0042742
Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
1 Q29983 (/IDA)
Negative regulation of natural killer cell mediated cytotoxicity GO:0045953
Any process that stops, prevents, or reduces the rate of natural killer mediated cytotoxicity.
1 Q29983 (/IMP)
Positive regulation of receptor-mediated endocytosis GO:0048260
Any process that activates or increases the frequency, rate or extent of receptor mediated endocytosis, the uptake of external materials by cells, utilizing receptors to ensure specificity of transport.
1 P70387 (/ISO)
Negative regulation of defense response to virus by host GO:0050689
Any host process that results in the inhibition of antiviral immune response mechanisms, thereby facilitating viral replication. The host is defined as the larger of the organisms involved in a symbiotic interaction.
1 Q29980 (/IDA)
Defense response to Gram-negative bacterium GO:0050829
Reactions triggered in response to the presence of a Gram-negative bacterium that act to protect the cell or organism.
1 Q8HWB0 (/IMP)
Defense response to virus GO:0051607
Reactions triggered in response to the presence of a virus that act to protect the cell or organism.
1 Q29983 (/IDA)
Iron ion homeostasis GO:0055072
Any process involved in the maintenance of an internal steady state of iron ions within an organism or cell.
1 O35799 (/IEP)
Iron ion homeostasis GO:0055072
Any process involved in the maintenance of an internal steady state of iron ions within an organism or cell.
1 P70387 (/ISO)
Multicellular organismal iron ion homeostasis GO:0060586
Any process involved in the maintenance of the distribution of iron stores within tissues and organs of a multicellular organism.
1 P70387 (/IMP)
Cellular response to iron ion GO:0071281
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an iron ion stimulus.
1 P70387 (/ISO)
Positive regulation of peptide hormone secretion GO:0090277
Any process that increases the rate, frequency, or extent of the regulated release of a peptide hormone from secretory granules.
1 P70387 (/ISO)
Liver regeneration GO:0097421
The regrowth of lost or destroyed liver.
1 O35799 (/IEP)
Negative regulation of receptor binding GO:1900121
Any process that stops, prevents or reduces the frequency, rate or extent of a protein or other molecule binding to a receptor.
1 P70387 (/ISO)
Positive regulation of receptor binding GO:1900122
Any process that activates or increases the frequency, rate or extent of a protein or other molecule binding to a receptor.
1 P70387 (/ISO)
Negative regulation of antigen processing and presentation of endogenous peptide antigen via MHC class I GO:1904283
Any process that stops, prevents or reduces the frequency, rate or extent of antigen processing and presentation of endogenous peptide antigen via MHC class I.
1 P70387 (/ISO)
Positive regulation of ferrous iron binding GO:1904434
Any process that activates or increases the frequency, rate or extent of ferrous iron binding.
1 P70387 (/ISO)
Positive regulation of transferrin receptor binding GO:1904437
Any process that activates or increases the frequency, rate or extent of transferrin receptor binding.
1 P70387 (/ISO)
Response to iron ion starvation GO:1990641
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a starvation stimulus, deprivation of iron ion.
1 O35799 (/IEP)
Regulation of protein localization to cell surface GO:2000008
Any process that modulates the frequency, rate or extent of protein localization to the cell surface.
1 P70387 (/ISO)
Negative regulation of ubiquitin-dependent protein catabolic process GO:2000059
Any process that stops, prevents, or reduces the frequency, rate or extent of ubiquitin-dependent protein catabolic process
1 P70387 (/IC)
Negative regulation of ubiquitin-dependent protein catabolic process GO:2000059
Any process that stops, prevents, or reduces the frequency, rate or extent of ubiquitin-dependent protein catabolic process
1 P70387 (/ISO)
Negative regulation of signaling receptor activity GO:2000272
Any process that stops, prevents or reduces the frequency, rate or extent of a signaling receptor activity.
1 P70387 (/ISO)
Positive regulation of signaling receptor activity GO:2000273
Any process that activates or increases the frequency, rate or extent of signaling receptor activity.
1 P70387 (/ISO)
Negative regulation of CD8-positive, alpha-beta T cell activation GO:2001186
Any process that stops, prevents or reduces the frequency, rate or extent of CD8-positive, alpha-beta T cell activation.
1 P70387 (/ISO)

There are 31 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
5 Q29980 (/TAS) Q29983 (/TAS) Q30201 (/TAS) Q30201 (/TAS) Q30201 (/TAS)
Anchored component of external side of plasma membrane GO:0031362
The component of the plasma membrane consisting of the gene products that are tethered to the external side of the membrane only by a covalently attached anchor, such as a lipid group embedded in the membrane. Gene products with peptide sequences that are embedded in the membrane are excluded from this grouping.
5 Q8HWA4 (/IDA) Q8HWA5 (/IDA) Q8HWE5 (/IDA) Q8HWE6 (/IDA) Q8HWE7 (/IDA)
Extracellular space GO:0005615
That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
4 Q29983 (/IDA) Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Apical part of cell GO:0045177
The region of a polarized cell that forms a tip or is distal to a base. For example, in a polarized epithelial cell, the apical region has an exposed surface and lies opposite to the basal lamina that separates the epithelium from other tissue.
4 O35799 (/IDA) Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
HFE-transferrin receptor complex GO:1990712
A protein complex containing at least HFE and a transferrin receptor (either TFR1/TFRC or TFR2), proposed to play a role in the sensing of transferrin-bound Fe (Fe2-Tf) on the plasma membrane to regulate hepcidin transcription.
4 P70387 (/IDA) Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Early endosome GO:0005769
A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Integral component of plasma membrane GO:0005887
The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
3 Q30201 (/TAS) Q30201 (/TAS) Q30201 (/TAS)
External side of plasma membrane GO:0009897
The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Cytoplasmic vesicle GO:0031410
A vesicle found in the cytoplasm of a cell.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Basal part of cell GO:0045178
The region of a cell situated near the base. For example, in a polarized epithelial cell, the basal surface rests on the basal lamina that separates the epithelium from other tissue.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Recycling endosome GO:0055037
An organelle consisting of a network of tubules that functions in targeting molecules, such as receptors transporters and lipids, to the plasma membrane.
3 Q30201 (/IDA) Q30201 (/IDA) Q30201 (/IDA)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
2 F1CN43 (/IDA) Q29983 (/IDA)
Extracellular space GO:0005615
That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
1 P70387 (/ISO)
Early endosome GO:0005769
A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways.
1 P70387 (/ISO)
Endoplasmic reticulum GO:0005783
The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
1 Q95460 (/IDA)
Endoplasmic reticulum GO:0005783
The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
1 Q8HWB0 (/ISO)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
1 Q95460 (/IDA)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
1 Q8HWB0 (/ISO)
Integral component of plasma membrane GO:0005887
The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
1 Q29983 (/IDA)
External side of plasma membrane GO:0009897
The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
1 P70387 (/ISO)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
1 Q29980 (/ISS)
Cytoplasmic vesicle GO:0031410
A vesicle found in the cytoplasm of a cell.
1 P70387 (/ISO)
MHC protein complex GO:0042611
A transmembrane protein complex composed of an MHC alpha chain and, in most cases, either an MHC class II beta chain or an invariant beta2-microglobin chain, and with or without a bound peptide, lipid, or polysaccharide antigen.
1 U3PTD3 (/IDA)
Apical part of cell GO:0045177
The region of a polarized cell that forms a tip or is distal to a base. For example, in a polarized epithelial cell, the apical region has an exposed surface and lies opposite to the basal lamina that separates the epithelium from other tissue.
1 P70387 (/ISO)
Basal part of cell GO:0045178
The region of a cell situated near the base. For example, in a polarized epithelial cell, the basal surface rests on the basal lamina that separates the epithelium from other tissue.
1 P70387 (/ISO)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
1 P70387 (/ISO)
Recycling endosome GO:0055037
An organelle consisting of a network of tubules that functions in targeting molecules, such as receptors transporters and lipids, to the plasma membrane.
1 P70387 (/ISO)
Terminal web GO:1990357
An actin-rich cytoskeletal network located beneath the microvilli of the apical plasma membrane of polarized epithelial cells. In addition to actin filaments, the terminal web may contain actin-binding proteins, myosin motor proteins, and intermediate filaments. The terminal web can function as a contractile structure that influences the spatial distribution of microvilli as well as the development and morphogenesis of tissues containing polarized epithelial cells.
1 O35799 (/IDA)
Terminal web GO:1990357
An actin-rich cytoskeletal network located beneath the microvilli of the apical plasma membrane of polarized epithelial cells. In addition to actin filaments, the terminal web may contain actin-binding proteins, myosin motor proteins, and intermediate filaments. The terminal web can function as a contractile structure that influences the spatial distribution of microvilli as well as the development and morphogenesis of tissues containing polarized epithelial cells.
1 P70387 (/ISO)
HFE-transferrin receptor complex GO:1990712
A protein complex containing at least HFE and a transferrin receptor (either TFR1/TFRC or TFR2), proposed to play a role in the sensing of transferrin-bound Fe (Fe2-Tf) on the plasma membrane to regulate hepcidin transcription.
1 P70387 (/ISO)
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