The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was: waiting to be named.

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 2: 60S acidic ribosomal protein P2

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
Structural constituent of ribosome GO:0003735
The action of a molecule that contributes to the structural integrity of the ribosome.
60 A0A1D8PRG5 (/IDA) A0A1D8PRG5 (/IDA) A0A1D8PTS0 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA)
(50 more)
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).
51 P02400 (/IPI) P02400 (/IPI) P02400 (/IPI) P02400 (/IPI) P02400 (/IPI) P02400 (/IPI) P02400 (/IPI) P02400 (/IPI) P02400 (/IPI) P05318 (/IPI)
(41 more)
Protein kinase activator activity GO:0030295
Binds to and increases the activity of a protein kinase, an enzyme which phosphorylates a protein.
18 P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P05318 (/IDA)
(8 more)
Structural constituent of ribosome GO:0003735
The action of a molecule that contributes to the structural integrity of the ribosome.
17 P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS)
(7 more)
Protein kinase activator activity GO:0030295
Binds to and increases the activity of a protein kinase, an enzyme which phosphorylates a protein.
14 P05319 (/ISS) P05319 (/ISS) P05319 (/ISS) P05319 (/ISS) P05319 (/ISS) P05319 (/ISS) P05319 (/ISS) P10622 (/ISS) P10622 (/ISS) P10622 (/ISS)
(4 more)
Structural constituent of ribosome GO:0003735
The action of a molecule that contributes to the structural integrity of the ribosome.
12 Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS)
(2 more)
Structural constituent of ribosome GO:0003735
The action of a molecule that contributes to the structural integrity of the ribosome.
7 Q38BQ9 (/ISM) Q38BQ9 (/ISM) Q38BQ9 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM)
Structural constituent of ribosome GO:0003735
The action of a molecule that contributes to the structural integrity of the ribosome.
7 O14317 (/ISO) P08094 (/ISO) P17478 (/ISO) P99027 (/ISO) P99027 (/ISO) P99027 (/ISO) P99027 (/ISO)
Structural constituent of ribosome GO:0003735
The action of a molecule that contributes to the structural integrity of the ribosome.
5 O24415 (/TAS) O24415 (/TAS) P05389 (/TAS) P46252 (/TAS) P46252 (/TAS)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
5 Q9HFQ4 (/IDA) Q9HFQ5 (/IDA) Q9HFQ6 (/IDA) Q9HFQ6 (/IDA) Q9HFQ6 (/IDA)
Protein-containing complex binding GO:0044877
Interacting selectively and non-covalently with a macromolecular complex.
4 O24415 (/IDA) O24415 (/IDA) P46252 (/IDA) P46252 (/IDA)
Acyl carrier activity GO:0000036
Binding an acyl group and presenting it for processing or offloading to a cognate enzyme. Covalently binds the acyl group via a phosphopantetheine prosthetic group and mediates protein-protein interactions with the enzyme conferring specificity. The acyl carrier protein (ACP) presents substrates to enzymes involved in fatty acid biosynthesis or in polyketide secondary metabolite biosynthesis.
2 Q96UQ7 (/IDA) Q96UQ7 (/IDA)
Structural constituent of ribosome GO:0003735
The action of a molecule that contributes to the structural integrity of the ribosome.
1 P05389 (/HDA)
Iron ion binding GO:0005506
Interacting selectively and non-covalently with iron (Fe) ions.
1 P02401 (/IDA)
Ribonucleoprotein complex binding GO:0043021
Interacting selectively and non-covalently with any complex of RNA and protein.
1 P02401 (/IPI)

There are 24 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
Cytoplasmic translation GO:0002181
The chemical reactions and pathways resulting in the formation of a protein in the cytoplasm. This is a ribosome-mediated process in which the information in messenger RNA (mRNA) is used to specify the sequence of amino acids in the protein.
32 P02400 (/IGI) P02400 (/IGI) P02400 (/IGI) P02400 (/IGI) P02400 (/IGI) P02400 (/IGI) P02400 (/IGI) P02400 (/IGI) P02400 (/IGI) P05318 (/IGI)
(22 more)
Cytoplasmic translation GO:0002181
The chemical reactions and pathways resulting in the formation of a protein in the cytoplasm. This is a ribosome-mediated process in which the information in messenger RNA (mRNA) is used to specify the sequence of amino acids in the protein.
32 P02400 (/IMP) P02400 (/IMP) P02400 (/IMP) P02400 (/IMP) P02400 (/IMP) P02400 (/IMP) P02400 (/IMP) P02400 (/IMP) P02400 (/IMP) P05318 (/IMP)
(22 more)
Translation GO:0006412
The cellular metabolic process in which a protein is formed, using the sequence of a mature mRNA or circRNA molecule to specify the sequence of amino acids in a polypeptide chain. Translation is mediated by the ribosome, and begins with the formation of a ternary complex between aminoacylated initiator methionine tRNA, GTP, and initiation factor 2, which subsequently associates with the small subunit of the ribosome and an mRNA or circRNA. Translation ends with the release of a polypeptide chain from the ribosome.
18 A0A1D8PRG5 (/ISS) A0A1D8PRG5 (/ISS) A0A1D8PTS0 (/ISS) Q5ANH5 (/ISS) Q5ANH5 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS)
(8 more)
Positive regulation of protein kinase activity GO:0045860
Any process that activates or increases the frequency, rate or extent of protein kinase activity.
18 P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P05318 (/IDA)
(8 more)
Nuclear-transcribed mRNA catabolic process, nonsense-mediated decay GO:0000184
The nonsense-mediated decay pathway for nuclear-transcribed mRNAs degrades mRNAs in which an amino-acid codon has changed to a nonsense codon; this prevents the translation of such mRNAs into truncated, and potentially harmful, proteins.
15 P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS)
(5 more)
Translation GO:0006412
The cellular metabolic process in which a protein is formed, using the sequence of a mature mRNA or circRNA molecule to specify the sequence of amino acids in a polypeptide chain. Translation is mediated by the ribosome, and begins with the formation of a ternary complex between aminoacylated initiator methionine tRNA, GTP, and initiation factor 2, which subsequently associates with the small subunit of the ribosome and an mRNA or circRNA. Translation ends with the release of a polypeptide chain from the ribosome.
15 P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS) P05387 (/NAS)
(5 more)
Translational initiation GO:0006413
The process preceding formation of the peptide bond between the first two amino acids of a protein. This includes the formation of a complex of the ribosome, mRNA or circRNA, and an initiation complex that contains the first aminoacyl-tRNA.
15 P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS)
(5 more)
SRP-dependent cotranslational protein targeting to membrane GO:0006614
The targeting of proteins to a membrane that occurs during translation and is dependent upon two key components, the signal-recognition particle (SRP) and the SRP receptor. SRP is a cytosolic particle that transiently binds to the endoplasmic reticulum (ER) signal sequence in a nascent protein, to the large ribosomal unit, and to the SRP receptor in the ER membrane.
15 P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS)
(5 more)
Viral transcription GO:0019083
The process by which a viral genome, or part of a viral genome, is transcribed within the host cell.
15 P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS)
(5 more)
Translation GO:0006412
The cellular metabolic process in which a protein is formed, using the sequence of a mature mRNA or circRNA molecule to specify the sequence of amino acids in a polypeptide chain. Translation is mediated by the ribosome, and begins with the formation of a ternary complex between aminoacylated initiator methionine tRNA, GTP, and initiation factor 2, which subsequently associates with the small subunit of the ribosome and an mRNA or circRNA. Translation ends with the release of a polypeptide chain from the ribosome.
7 Q38BQ9 (/ISM) Q38BQ9 (/ISM) Q38BQ9 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM)
Translational elongation GO:0006414
The successive addition of amino acid residues to a nascent polypeptide chain during protein biosynthesis.
7 Q38BQ9 (/ISM) Q38BQ9 (/ISM) Q38BQ9 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM)
Positive regulation of protein kinase activity GO:0045860
Any process that activates or increases the frequency, rate or extent of protein kinase activity.
7 P10622 (/ISS) P10622 (/ISS) P10622 (/ISS) P10622 (/ISS) P10622 (/ISS) P10622 (/ISS) P10622 (/ISS)
Protein homooligomerization GO:0051260
The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
5 Q9HFQ4 (/IDA) Q9HFQ5 (/IDA) Q9HFQ6 (/IDA) Q9HFQ6 (/IDA) Q9HFQ6 (/IDA)
Protein heterooligomerization GO:0051291
The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of component monomers that are not all identical. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
5 Q9HFQ4 (/IDA) Q9HFQ5 (/IDA) Q9HFQ6 (/IDA) Q9HFQ6 (/IDA) Q9HFQ6 (/IDA)
Cytoplasmic translational elongation GO:0002182
The successive addition of amino acid residues to a nascent polypeptide chain during protein biosynthesis in the cytoplasm.
3 O14317 (/ISO) P08094 (/ISO) P17478 (/ISO)
Fatty acid biosynthetic process GO:0006633
The chemical reactions and pathways resulting in the formation of a fatty acid, any of the aliphatic monocarboxylic acids that can be liberated by hydrolysis from naturally occurring fats and oils. Fatty acids are predominantly straight-chain acids of 4 to 24 carbon atoms, which may be saturated or unsaturated; branched fatty acids and hydroxy fatty acids also occur, and very long chain acids of over 30 carbons are found in waxes.
2 Q96UQ7 (/IDA) Q96UQ7 (/IDA)
Lipid biosynthetic process GO:0008610
The chemical reactions and pathways resulting in the formation of lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent.
2 Q96UQ7 (/NAS) Q96UQ7 (/NAS)
Response to cold GO:0009409
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 cold stimulus, a temperature stimulus below the optimal temperature for that organism.
2 Q9SLF7 (/IEP) Q9SLF7 (/IEP)
Cytoplasmic translation GO:0002181
The chemical reactions and pathways resulting in the formation of a protein in the cytoplasm. This is a ribosome-mediated process in which the information in messenger RNA (mRNA) is used to specify the sequence of amino acids in the protein.
1 P05389 (/IC)
Cytoplasmic translation GO:0002181
The chemical reactions and pathways resulting in the formation of a protein in the cytoplasm. This is a ribosome-mediated process in which the information in messenger RNA (mRNA) is used to specify the sequence of amino acids in the protein.
1 P05389 (/TAS)
Chordate embryonic development GO:0043009
The process whose specific outcome is the progression of the embryo over time, from zygote formation through a stage including a notochord and neural tube until birth or egg hatching.
1 A7E2K4 (/IMP)
Positive regulation of translation GO:0045727
Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of proteins by the translation of mRNA or circRNA.
1 P02401 (/IDA)
Cellular response to cAMP GO:0071320
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 cAMP (cyclic AMP, adenosine 3',5'-cyclophosphate) stimulus.
1 P02401 (/IEP)
Cellular response to Thyroid stimulating hormone GO:1904401
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 Thyroid stimulating hormone stimulus.
1 P02401 (/IEP)

There are 29 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
Cytosolic large ribosomal subunit GO:0022625
The large subunit of a ribosome located in the cytosol.
52 O24415 (/IDA) O24415 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA) P02400 (/IDA)
(42 more)
Fungal-type vacuole GO:0000324
A vacuole that has both lytic and storage functions. The fungal vacuole is a large, membrane-bounded organelle that functions as a reservoir for the storage of small molecules (including polyphosphate, amino acids, several divalent cations (e.g. calcium), other ions, and other small molecules) as well as being the primary compartment for degradation. It is an acidic compartment, containing an ensemble of acid hydrolases. At least in S. cerevisiae, there are indications that the morphology of the vacuole is variable and correlated with the cell cycle, with logarithmically growing cells having a multilobed, reticulated vacuole, while stationary phase cells contain a single large structure.
16 P02400 (/HDA) P02400 (/HDA) P02400 (/HDA) P02400 (/HDA) P02400 (/HDA) P02400 (/HDA) P02400 (/HDA) P02400 (/HDA) P02400 (/HDA) P10622 (/HDA)
(6 more)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
15 P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS) P05387 (/TAS)
(5 more)
Focal adhesion GO:0005925
Small region on the surface of a cell that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments.
15 P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA)
(5 more)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
15 P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA)
(5 more)
Cytosolic large ribosomal subunit GO:0022625
The large subunit of a ribosome located in the cytosol.
15 P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA)
(5 more)
Extracellular exosome GO:0070062
A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
15 P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA) P05387 (/HDA)
(5 more)
Large ribosomal subunit GO:0015934
The larger of the two subunits of a ribosome. Two sites on the ribosomal large subunit are involved in translation, namely the aminoacyl site (A site) and peptidyl site (P site).
12 Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS) Q8IIX0 (/ISS)
(2 more)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
7 Q38BQ9 (/IDA) Q38BQ9 (/IDA) Q38BQ9 (/IDA) Q38EY6 (/IDA) Q38EY6 (/IDA) Q38EY6 (/IDA) Q38EY6 (/IDA)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
7 Q6FYB0 (/IDA) Q9LH85 (/IDA) Q9LUK2 (/IDA) Q9LXM8 (/IDA) Q9LXM8 (/IDA) Q9SLF7 (/IDA) Q9SLF7 (/IDA)
Ribosome GO:0005840
An intracellular organelle, about 200 A in diameter, consisting of RNA and protein. It is the site of protein biosynthesis resulting from translation of messenger RNA (mRNA). It consists of two subunits, one large and one small, each containing only protein and RNA. Both the ribosome and its subunits are characterized by their sedimentation coefficients, expressed in Svedberg units (symbol: S). Hence, the prokaryotic ribosome (70S) comprises a large (50S) subunit and a small (30S) subunit, while the eukaryotic ribosome (80S) comprises a large (60S) subunit and a small (40S) subunit. Two sites on the ribosomal large subunit are involved in translation, namely the aminoacyl site (A site) and peptidyl site (P site). Ribosomes from prokaryotes, eukaryotes, mitochondria, and chloroplasts have characteristically distinct ribosomal proteins.
7 A0A1D8PRG5 (/IDA) A0A1D8PRG5 (/IDA) A0A1D8PTS0 (/IDA) Q5ANH5 (/IDA) Q5ANH5 (/IDA) Q9HFQ5 (/IDA) Q9HFQ7 (/IDA)
Ribosome GO:0005840
An intracellular organelle, about 200 A in diameter, consisting of RNA and protein. It is the site of protein biosynthesis resulting from translation of messenger RNA (mRNA). It consists of two subunits, one large and one small, each containing only protein and RNA. Both the ribosome and its subunits are characterized by their sedimentation coefficients, expressed in Svedberg units (symbol: S). Hence, the prokaryotic ribosome (70S) comprises a large (50S) subunit and a small (30S) subunit, while the eukaryotic ribosome (80S) comprises a large (60S) subunit and a small (40S) subunit. Two sites on the ribosomal large subunit are involved in translation, namely the aminoacyl site (A site) and peptidyl site (P site). Ribosomes from prokaryotes, eukaryotes, mitochondria, and chloroplasts have characteristically distinct ribosomal proteins.
7 Q38BQ9 (/ISM) Q38BQ9 (/ISM) Q38BQ9 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM) Q38EY6 (/ISM)
Cytosolic large ribosomal subunit GO:0022625
The large subunit of a ribosome located in the cytosol.
7 O14317 (/ISO) P08094 (/ISO) P17478 (/ISO) P99027 (/ISO) P99027 (/ISO) P99027 (/ISO) P99027 (/ISO)
Cytosolic ribosome GO:0022626
A ribosome located in the cytosol.
6 Q9LH85 (/IDA) Q9LUK2 (/IDA) Q9LXM8 (/IDA) Q9LXM8 (/IDA) Q9SLF7 (/IDA) Q9SLF7 (/IDA)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
4 Q9LXM8 (/IDA) Q9LXM8 (/IDA) Q9SLF7 (/IDA) Q9SLF7 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
4 E9ACI8 (/ISO) E9ACI8 (/ISO) E9ACI8 (/ISO) E9ACI8 (/ISO)
Synapse GO:0045202
The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.
4 P99027 (/EXP) P99027 (/EXP) P99027 (/EXP) P99027 (/EXP)
Synapse GO:0045202
The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.
4 P99027 (/IDA) P99027 (/IDA) P99027 (/IDA) P99027 (/IDA)
Mitochondrion GO:0005739
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
3 Q38BQ9 (/IDA) Q38BQ9 (/IDA) Q38BQ9 (/IDA)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
3 O14317 (/HDA) P08094 (/HDA) P17478 (/HDA)
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.
3 Q9LH85 (/IDA) Q9SLF7 (/IDA) Q9SLF7 (/IDA)
Polysomal ribosome GO:0042788
A ribosome bound to mRNA that forms part of a polysome.
3 Q9LH85 (/IDA) Q9SLF7 (/IDA) Q9SLF7 (/IDA)
Nucleolus GO:0005730
A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome.
2 Q9SLF7 (/IDA) Q9SLF7 (/IDA)
Ribosome GO:0005840
An intracellular organelle, about 200 A in diameter, consisting of RNA and protein. It is the site of protein biosynthesis resulting from translation of messenger RNA (mRNA). It consists of two subunits, one large and one small, each containing only protein and RNA. Both the ribosome and its subunits are characterized by their sedimentation coefficients, expressed in Svedberg units (symbol: S). Hence, the prokaryotic ribosome (70S) comprises a large (50S) subunit and a small (30S) subunit, while the eukaryotic ribosome (80S) comprises a large (60S) subunit and a small (40S) subunit. Two sites on the ribosomal large subunit are involved in translation, namely the aminoacyl site (A site) and peptidyl site (P site). Ribosomes from prokaryotes, eukaryotes, mitochondria, and chloroplasts have characteristically distinct ribosomal proteins.
2 Q96UQ7 (/NAS) Q96UQ7 (/NAS)
Chloroplast GO:0009507
A chlorophyll-containing plastid with thylakoids organized into grana and frets, or stroma thylakoids, and embedded in a stroma.
2 Q9SLF7 (/IDA) Q9SLF7 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
2 Q9SLF7 (/IDA) Q9SLF7 (/IDA)
Cytosolic large ribosomal subunit GO:0022625
The large subunit of a ribosome located in the cytosol.
1 P05389 (/TAS)
Cytosolic ribosome GO:0022626
A ribosome located in the cytosol.
1 P05389 (/HDA)
Extracellular matrix GO:0031012
A structure lying external to one or more cells, which provides structural support, biochemical or biomechanical cues for cells or tissues.
1 P22683 (/HDA)
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