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 named:

"
Nucleic acid-binding proteins
".

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 47: tyrosine--tRNA ligase, cytoplasmic isoform X2

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 19 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
Tyrosine-tRNA ligase activity GO:0004831
Catalysis of the reaction: L-tyrosine + ATP + tRNA(Tyr) = L-tyrosyl-tRNA(Tyr) + AMP + diphosphate + 2 H(+).
3 P54577 (/TAS) P54577 (/TAS) Q9VV60 (/TAS)
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).
3 P54577 (/IPI) P54577 (/IPI) Q12904 (/IPI)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
2 P54577 (/HDA) P54577 (/HDA)
Cytokine activity GO:0005125
Functions to control the survival, growth, differentiation and effector function of tissues and cells.
2 Q12904 (/TAS) Q4G079 (/TAS)
Interleukin-8 receptor binding GO:0005153
Interacting selectively and non-covalently with the interleukin-8 receptor.
2 P54577 (/TAS) P54577 (/TAS)
TRNA binding GO:0000049
Interacting selectively and non-covalently with transfer RNA.
1 Q12904 (/IDA)
TRNA binding GO:0000049
Interacting selectively and non-covalently with transfer RNA.
1 P31230 (/ISO)
TRNA binding GO:0000049
Interacting selectively and non-covalently with transfer RNA.
1 P31230 (/ISS)
TRNA binding GO:0000049
Interacting selectively and non-covalently with transfer RNA.
1 Q12904 (/TAS)
Tyrosine-tRNA ligase activity GO:0004831
Catalysis of the reaction: L-tyrosine + ATP + tRNA(Tyr) = L-tyrosyl-tRNA(Tyr) + AMP + diphosphate + 2 H(+).
1 Q9VV60 (/IDA)
Cytokine activity GO:0005125
Functions to control the survival, growth, differentiation and effector function of tissues and cells.
1 P31230 (/IDA)
Cytokine activity GO:0005125
Functions to control the survival, growth, differentiation and effector function of tissues and cells.
1 Q12904 (/ISS)
Chemoattractant activity GO:0042056
Providing the environmental signal that initiates the directed movement of a motile cell or organism towards a higher concentration of that signal.
1 Q9VV60 (/IDA)
Chemoattractant activity GO:0042056
Providing the environmental signal that initiates the directed movement of a motile cell or organism towards a higher concentration of that signal.
1 Q9VV60 (/IMP)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
1 Q12904 (/IDA)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
1 P31230 (/ISO)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
1 P31230 (/ISS)
GTPase binding GO:0051020
Interacting selectively and non-covalently with a GTPase, any enzyme that catalyzes the hydrolysis of GTP.
1 Q12904 (/IPI)
GTPase binding GO:0051020
Interacting selectively and non-covalently with a GTPase, any enzyme that catalyzes the hydrolysis of GTP.
1 P31230 (/ISO)

There are 25 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
TRNA aminoacylation for protein translation GO:0006418
The synthesis of aminoacyl tRNA by the formation of an ester bond between the 3'-hydroxyl group of the most 3' adenosine of the tRNA and the alpha carboxylic acid group of an amino acid, to be used in ribosome-mediated polypeptide synthesis.
3 P54577 (/TAS) P54577 (/TAS) Q12904 (/TAS)
Tyrosyl-tRNA aminoacylation GO:0006437
The process of coupling tyrosine to tyrosyl-tRNA, catalyzed by tyrosyl-tRNA synthetase.The tyrosyl-tRNA synthetase is a class-I synthetase. The activated amino acid is transferred to the 2'-OH group of a tyrosine-accetping tRNA. The 2'-O-aminoacyl-tRNA will ultimately migrate to the 3' position via transesterification.T
3 P54577 (/TAS) P54577 (/TAS) Q9VV60 (/TAS)
Apoptotic process GO:0006915
A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
2 P54577 (/TAS) P54577 (/TAS)
Inflammatory response GO:0006954
The immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents. The process is characterized by local vasodilation, extravasation of plasma into intercellular spaces and accumulation of white blood cells and macrophages.
2 Q12904 (/TAS) Q4G079 (/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.
2 Q6TGS6 (/IMP) Q6TGS6 (/IMP)
Leukocyte migration GO:0050900
The movement of a leukocyte within or between different tissues and organs of the body.
2 P31230 (/IDA) Q12904 (/IDA)
Positive regulation of glucagon secretion GO:0070094
Any process that activates or increases the frequency, rate or extent of the regulated release of glucagon.
2 O54873 (/ISS) Q12904 (/ISS)
Negative regulation of endothelial cell proliferation GO:0001937
Any process that stops, prevents, or reduces the rate or extent of endothelial cell proliferation.
1 Q12904 (/IDA)
Negative regulation of endothelial cell proliferation GO:0001937
Any process that stops, prevents, or reduces the rate or extent of endothelial cell proliferation.
1 P31230 (/ISO)
Negative regulation of endothelial cell proliferation GO:0001937
Any process that stops, prevents, or reduces the rate or extent of endothelial cell proliferation.
1 P31230 (/ISS)
Chemotaxis GO:0006935
The directed movement of a motile cell or organism, or the directed growth of a cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis).
1 Q12904 (/TAS)
Signal transduction GO:0007165
The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
1 Q12904 (/NAS)
Cell-cell signaling GO:0007267
Any process that mediates the transfer of information from one cell to another. This process includes signal transduction in the receiving cell and, where applicable, release of a ligand and any processes that actively facilitate its transport and presentation to the receiving cell. Examples include signaling via soluble ligands, via cell adhesion molecules and via gap junctions.
1 Q12904 (/IDA)
Cell-cell signaling GO:0007267
Any process that mediates the transfer of information from one cell to another. This process includes signal transduction in the receiving cell and, where applicable, release of a ligand and any processes that actively facilitate its transport and presentation to the receiving cell. Examples include signaling via soluble ligands, via cell adhesion molecules and via gap junctions.
1 P31230 (/ISO)
Response to wounding GO:0009611
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 stimulus indicating damage to the organism.
1 Q12904 (/TAS)
Regulation of macrophage chemotaxis GO:0010758
Any process that modulates the rate, frequency or extent of macrophage chemotaxis. Macrophage chemotaxis is the movement of a macrophage in response to an external stimulus.
1 Q9VV60 (/IDA)
Regulation of macrophage chemotaxis GO:0010758
Any process that modulates the rate, frequency or extent of macrophage chemotaxis. Macrophage chemotaxis is the movement of a macrophage in response to an external stimulus.
1 Q9VV60 (/IMP)
Negative regulation of angiogenesis GO:0016525
Any process that stops, prevents, or reduces the frequency, rate or extent of angiogenesis.
1 Q4G079 (/TAS)
Sorocarp development GO:0030587
The process whose specific outcome is the progression of the sorocarp over time, from its formation to the mature structure. The process begins with the aggregation of individual cells and ends with the mature sorocarp. The sorocarp is a structure containing a spore-bearing sorus that sits on top of a stalk. An example of this process is found in Dictyostelium discoideum.
1 Q54DX3 (/HMP)
Response to cadmium ion GO:0046686
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 cadmium (Cd) ion stimulus.
1 Q9SVN5 (/IEP)
Blood vessel morphogenesis GO:0048514
The process in which the anatomical structures of blood vessels are generated and organized. The blood vessel is the vasculature carrying blood.
1 Q4G079 (/IEP)
Leukocyte migration GO:0050900
The movement of a leukocyte within or between different tissues and organs of the body.
1 P31230 (/ISO)
Positive chemotaxis GO:0050918
The directed movement of a motile cell or organism towards a higher concentration of a chemical.
1 Q9VV60 (/IDA)
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 Q4G079 (/IEP)
Positive regulation of glucagon secretion GO:0070094
Any process that activates or increases the frequency, rate or extent of the regulated release of glucagon.
1 P31230 (/IDA)

There are 17 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
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 A0A0S2Z4R1 (/IDA) A0A0S2Z4R1 (/IDA) P54577 (/IDA) P54577 (/IDA) Q12904 (/IDA) Q93VB0 (/IDA) Q9SVN5 (/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.
4 P54577 (/TAS) P54577 (/TAS) Q12904 (/TAS) Q9SVN5 (/TAS)
Nuclear body GO:0016604
Extra-nucleolar nuclear domains usually visualized by confocal microscopy and fluorescent antibodies to specific proteins.
4 A0A0S2Z4R1 (/IDA) A0A0S2Z4R1 (/IDA) P54577 (/IDA) P54577 (/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.
3 P54577 (/TAS) P54577 (/TAS) Q12904 (/TAS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
3 P54577 (/TAS) P54577 (/TAS) Q9VV60 (/TAS)
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.
2 P31230 (/IDA) Q9VV60 (/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.
2 O54873 (/ISS) Q12904 (/ISS)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
2 P31230 (/ISO) Q91WQ3 (/ISO)
Aminoacyl-tRNA synthetase multienzyme complex GO:0017101
A multienzyme complex found in all multicellular eukaryotes composed of eight proteins with aminoacyl-tRNA synthetase activities (abbreviated as: ArgRS, AspRS, GluProRS, GlnRS, IleRS, LeuRS, LysRS, MetRS where RS is the enzyme, preceded by the amino acid it uses as a substrate) as well as three non-synthetase proteins (p43, p38, and p18) with diverse functions. Several of these subunits are known dimers, so the total polypeptide count in the multisynthetase complex is at least fifteen. All of the enzymes in this assembly catalyze the same reaction, the covalent attachment of an amino acid to either the 2'- or 3'-hydroxyl of the 3'-terminal adenosine of tRNA, but using different substrates.
2 P31230 (/IDA) Q12904 (/IDA)
Aminoacyl-tRNA synthetase multienzyme complex GO:0017101
A multienzyme complex found in all multicellular eukaryotes composed of eight proteins with aminoacyl-tRNA synthetase activities (abbreviated as: ArgRS, AspRS, GluProRS, GlnRS, IleRS, LeuRS, LysRS, MetRS where RS is the enzyme, preceded by the amino acid it uses as a substrate) as well as three non-synthetase proteins (p43, p38, and p18) with diverse functions. Several of these subunits are known dimers, so the total polypeptide count in the multisynthetase complex is at least fifteen. All of the enzymes in this assembly catalyze the same reaction, the covalent attachment of an amino acid to either the 2'- or 3'-hydroxyl of the 3'-terminal adenosine of tRNA, but using different substrates.
2 O54873 (/ISS) P31230 (/ISS)
Plasmodesma GO:0009506
A fine cytoplasmic channel, found in all higher plants, that connects the cytoplasm of one cell to that of an adjacent cell.
1 Q93VB0 (/IDA)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
1 Q12904 (/IDA)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
1 P31230 (/ISO)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
1 P31230 (/ISS)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q12904 (/HDA)
Nuclear body GO:0016604
Extra-nucleolar nuclear domains usually visualized by confocal microscopy and fluorescent antibodies to specific proteins.
1 Q91WQ3 (/ISO)
Aminoacyl-tRNA synthetase multienzyme complex GO:0017101
A multienzyme complex found in all multicellular eukaryotes composed of eight proteins with aminoacyl-tRNA synthetase activities (abbreviated as: ArgRS, AspRS, GluProRS, GlnRS, IleRS, LeuRS, LysRS, MetRS where RS is the enzyme, preceded by the amino acid it uses as a substrate) as well as three non-synthetase proteins (p43, p38, and p18) with diverse functions. Several of these subunits are known dimers, so the total polypeptide count in the multisynthetase complex is at least fifteen. All of the enzymes in this assembly catalyze the same reaction, the covalent attachment of an amino acid to either the 2'- or 3'-hydroxyl of the 3'-terminal adenosine of tRNA, but using different substrates.
1 P31230 (/ISO)
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