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 87: Protein lin-28 homolog B

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 16 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
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
9 Q45KJ4 (/ISS) Q45KJ5 (/ISS) Q45KJ6 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8AVK2 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS)
Polysome binding GO:1905538
Interacting selectively and non-covalently with a polysome.
7 Q45KJ5 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS) Q8K3Y3 (/ISS)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
3 Q6ZN17 (/IDA) Q8K3Y3 (/IDA) Q9H9Z2 (/IDA)
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 Q6ZN17 (/IPI) Q8K3Y3 (/IPI) Q9H9Z2 (/IPI)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
2 Q45KJ6 (/ISO) Q8K3Y3 (/ISO)
MRNA binding GO:0003729
Interacting selectively and non-covalently with messenger RNA (mRNA), an intermediate molecule between DNA and protein. mRNA includes UTR and coding sequences, but does not contain introns.
2 Q8K3Y3 (/IDA) Q9VRN5 (/IDA)
G-quadruplex RNA binding GO:0002151
Interacting selectively and non-covalently with G-quadruplex RNA structures, in which groups of four guanines adopt a flat, cyclic hydrogen-bonding arrangement known as a guanine tetrad.
1 Q8K3Y3 (/IDA)
G-quadruplex RNA binding GO:0002151
Interacting selectively and non-covalently with G-quadruplex RNA structures, in which groups of four guanines adopt a flat, cyclic hydrogen-bonding arrangement known as a guanine tetrad.
1 Q9H9Z2 (/ISS)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
1 Q6ZN17 (/HDA)
Translation initiation factor binding GO:0031369
Interacting selectively and non-covalently with a translation initiation factor, any polypeptide factor involved in the initiation of ribosome-mediated translation.
1 Q8K3Y3 (/IPI)
MiRNA binding GO:0035198
Interacting selectively and non-covalently with a microRNA, a 21-23 nucleotide RNA that is processed from a stem-loop RNA precursor (pre-miRNA) that is encoded within plant and animal genomes.
1 Q8K3Y3 (/IDA)
MiRNA binding GO:0035198
Interacting selectively and non-covalently with a microRNA, a 21-23 nucleotide RNA that is processed from a stem-loop RNA precursor (pre-miRNA) that is encoded within plant and animal genomes.
1 Q9H9Z2 (/ISS)
Polysome binding GO:1905538
Interacting selectively and non-covalently with a polysome.
1 Q9H9Z2 (/IDA)
Polysome binding GO:1905538
Interacting selectively and non-covalently with a polysome.
1 Q8K3Y3 (/ISO)
Sequence-specific mRNA binding GO:1990825
Interacting selectively and non-covalently with messenger RNA (mRNA) of a specific nucleotide composition or a specific sequence motif.
1 Q8K3Y3 (/IDA)
Sequence-specific mRNA binding GO:1990825
Interacting selectively and non-covalently with messenger RNA (mRNA) of a specific nucleotide composition or a specific sequence motif.
1 Q9H9Z2 (/ISS)

There are 45 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
MiRNA catabolic process GO:0010587
The chemical reactions and pathways resulting in the breakdown of miRNA, microRNA, a class of single-stranded RNA molecules of about 21-23 nucleotides in length, which regulates gene expression.
9 Q45KJ4 (/ISS) Q45KJ5 (/ISS) Q45KJ6 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8AVK2 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS)
Pre-miRNA processing GO:0031054
Any process involved in the conversion of a pre-microRNA transcript into a mature microRNA molecule.
9 Q45KJ4 (/ISS) Q45KJ5 (/ISS) Q45KJ6 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8AVK2 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS)
RNA 3'-end processing GO:0031123
Any process involved in forming the mature 3' end of an RNA molecule.
9 Q45KJ4 (/ISS) Q45KJ5 (/ISS) Q45KJ6 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8AVK2 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS)
Positive regulation of cytoplasmic translation GO:2000767
Any process that activates or increases the frequency, rate or extent of cytoplasmic translation.
7 Q45KJ5 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS) Q8K3Y3 (/ISS)
Stem cell population maintenance GO:0019827
The process by which an organism or tissue maintains a population of stem cells of a single type. This can be achieved by a number of mechanisms: stem cell asymmetric division maintains stem cell numbers; stem cell symmetric division increases them; maintenance of a stem cell niche maintains the conditions for commitment to the stem cell fate for some types of stem cell; stem cells may arise de novo from other cell types.
6 Q45KJ5 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS)
MiRNA catabolic process GO:0010587
The chemical reactions and pathways resulting in the breakdown of miRNA, microRNA, a class of single-stranded RNA molecules of about 21-23 nucleotides in length, which regulates gene expression.
3 Q6ZN17 (/IMP) Q8K3Y3 (/IMP) Q9H9Z2 (/IMP)
Pre-miRNA processing GO:0031054
Any process involved in the conversion of a pre-microRNA transcript into a mature microRNA molecule.
3 Q6ZN17 (/IMP) Q8K3Y3 (/IMP) Q9H9Z2 (/IMP)
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.
3 E7F3W9 (/IMP) Q803L0 (/IMP) S0BDM9 (/IMP)
MiRNA catabolic process GO:0010587
The chemical reactions and pathways resulting in the breakdown of miRNA, microRNA, a class of single-stranded RNA molecules of about 21-23 nucleotides in length, which regulates gene expression.
2 Q45KJ6 (/ISO) Q8K3Y3 (/ISO)
Pre-miRNA processing GO:0031054
Any process involved in the conversion of a pre-microRNA transcript into a mature microRNA molecule.
2 Q45KJ6 (/ISO) Q8K3Y3 (/ISO)
RNA 3'-end processing GO:0031123
Any process involved in forming the mature 3' end of an RNA molecule.
2 Q6ZN17 (/IMP) Q9H9Z2 (/IMP)
RNA 3'-end processing GO:0031123
Any process involved in forming the mature 3' end of an RNA molecule.
2 Q45KJ6 (/ISO) Q8K3Y3 (/ISO)
Germ cell development GO:0007281
The process whose specific outcome is the progression of an immature germ cell over time, from its formation to the mature structure (gamete). A germ cell is any reproductive cell in a multicellular organism.
1 Q8K3Y3 (/IGI)
Germ cell development GO:0007281
The process whose specific outcome is the progression of an immature germ cell over time, from its formation to the mature structure (gamete). A germ cell is any reproductive cell in a multicellular organism.
1 Q8K3Y3 (/IMP)
MiRNA metabolic process GO:0010586
The chemical reactions and pathways involving miRNA, microRNA, a class of single-stranded RNA molecules of about 21-23 nucleotides in length, which regulates gene expression.
1 Q8K3Y3 (/IDA)
Negative regulation of gene expression GO:0010629
Any process that decreases 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 Q803L0 (/IMP)
Negative regulation of translation GO:0017148
Any process that stops, prevents, or reduces 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 Q8K3Y3 (/IDA)
Negative regulation of translation GO:0017148
Any process that stops, prevents, or reduces 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 Q9H9Z2 (/ISS)
Stem cell population maintenance GO:0019827
The process by which an organism or tissue maintains a population of stem cells of a single type. This can be achieved by a number of mechanisms: stem cell asymmetric division maintains stem cell numbers; stem cell symmetric division increases them; maintenance of a stem cell niche maintains the conditions for commitment to the stem cell fate for some types of stem cell; stem cells may arise de novo from other cell types.
1 Q9H9Z2 (/IMP)
Stem cell population maintenance GO:0019827
The process by which an organism or tissue maintains a population of stem cells of a single type. This can be achieved by a number of mechanisms: stem cell asymmetric division maintains stem cell numbers; stem cell symmetric division increases them; maintenance of a stem cell niche maintains the conditions for commitment to the stem cell fate for some types of stem cell; stem cells may arise de novo from other cell types.
1 Q8K3Y3 (/ISO)
Pre-miRNA processing GO:0031054
Any process involved in the conversion of a pre-microRNA transcript into a mature microRNA molecule.
1 Q8K3Y3 (/IDA)
Regeneration GO:0031099
The regrowth of a lost or destroyed body part, such as an organ or tissue. This process may occur via renewal, repair, and/or growth alone (i.e. increase in size or mass).
1 Q803L0 (/IMP)
Positive regulation of TOR signaling GO:0032008
Any process that activates or increases the frequency, rate or extent of TOR signaling.
1 Q8K3Y3 (/IDA)
Positive regulation of TOR signaling GO:0032008
Any process that activates or increases the frequency, rate or extent of TOR signaling.
1 Q9H9Z2 (/ISS)
Somatic stem cell population maintenance GO:0035019
Any process by which an organism retains a population of somatic stem cells, undifferentiated cells in the embryo or adult which can undergo unlimited division and give rise to cell types of the body other than those of the germ-line.
1 Q9H9Z2 (/TAS)
Positive regulation of neuron differentiation GO:0045666
Any process that activates or increases the frequency, rate or extent of neuron differentiation.
1 Q8K3Y3 (/IDA)
Negative regulation of glial cell differentiation GO:0045686
Any process that stops, prevents, or reduces the frequency, rate or extent of glia cell differentiation.
1 Q8K3Y3 (/IDA)
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 Q8K3Y3 (/IDA)
Positive regulation of insulin receptor signaling pathway GO:0046628
Any process that increases the frequency, rate or extent of insulin receptor signaling.
1 Q9VRN5 (/IGI)
Positive regulation of insulin receptor signaling pathway GO:0046628
Any process that increases the frequency, rate or extent of insulin receptor signaling.
1 Q9VRN5 (/IMP)
Oogenesis GO:0048477
The complete process of formation and maturation of an ovum or female gamete from a primordial female germ cell. Examples of this process are found in Mus musculus and Drosophila melanogaster.
1 Q9VRN5 (/IMP)
Stem cell differentiation GO:0048863
The process in which a relatively unspecialized cell acquires specialized features of a stem cell. A stem cell is a cell that retains the ability to divide and proliferate throughout life to provide progenitor cells that can differentiate into specialized cells.
1 Q8K3Y3 (/IMP)
Positive regulation of protein kinase B signaling GO:0051897
Any process that activates or increases the frequency, rate or extent of protein kinase B signaling, a series of reactions mediated by the intracellular serine/threonine kinase protein kinase B.
1 Q8K3Y3 (/IDA)
Positive regulation of protein kinase B signaling GO:0051897
Any process that activates or increases the frequency, rate or extent of protein kinase B signaling, a series of reactions mediated by the intracellular serine/threonine kinase protein kinase B.
1 Q9H9Z2 (/ISS)
Regulation of gene silencing by miRNA GO:0060964
Any process that modulates the rate, frequency, or extent of the downregulation of gene expression through the action of microRNAs (miRNAs), endogenous 21-24 nucleotide small RNAs processed from stem-loop RNA precursors (pre-miRNAs). Once incorporated into a RNA-induced silencing complex (RISC), miRNAs can downregulate gene expression by either of two posttranscriptional mechanisms: RNA (often mRNA) cleavage or mRNA translational repression.
1 Q8K3Y3 (/IGI)
Cellular response to glucose stimulus GO:0071333
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 glucose stimulus.
1 Q8K3Y3 (/IMP)
Cellular response to glucose stimulus GO:0071333
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 glucose stimulus.
1 Q9H9Z2 (/ISS)
Symmetric stem cell division GO:0098724
Symmetric division of a stem cell to produce two stem cells of the same type as the parent. Symmetric stem cell division is necessary for amplification of stem cell populations in the absence of sources of stem cells external to an existing population.
1 Q9VRN5 (/IMP)
Positive regulation of cell proliferation involved in kidney development GO:1901724
Any process that activates or increases the frequency, rate or extent of cell proliferation involved in kidney development.
1 Q8K3Y3 (/IMP)
Positive regulation of production of miRNAs involved in gene silencing by miRNA GO:1903800
Any process that activates or increases the frequency, rate or extent of production of miRNAs involved in gene silencing by miRNA.
1 Q8K3Y3 (/IDA)
Positive regulation of production of miRNAs involved in gene silencing by miRNA GO:1903800
Any process that activates or increases the frequency, rate or extent of production of miRNAs involved in gene silencing by miRNA.
1 Q9H9Z2 (/ISS)
Negative regulation of pre-miRNA processing GO:2000632
Any process that stops, prevents or reduces the frequency, rate or extent of pre-microRNA processing.
1 Q9VRN5 (/IMP)
Positive regulation of stem cell proliferation GO:2000648
Any process that activates or increases the frequency, rate or extent of stem cell proliferation.
1 Q9VRN5 (/IMP)
Positive regulation of cytoplasmic translation GO:2000767
Any process that activates or increases the frequency, rate or extent of cytoplasmic translation.
1 Q9H9Z2 (/IMP)
Positive regulation of cytoplasmic translation GO:2000767
Any process that activates or increases the frequency, rate or extent of cytoplasmic translation.
1 Q8K3Y3 (/ISO)

There are 24 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
P-body GO:0000932
A focus in the cytoplasm where mRNAs may become inactivated by decapping or some other mechanism. Protein and RNA localized to these foci are involved in mRNA degradation, nonsense-mediated mRNA decay (NMD), translational repression, and RNA-mediated gene silencing.
7 Q45KJ5 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS) Q8K3Y3 (/ISS)
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.
7 Q45KJ5 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS) Q8K3Y3 (/ISS)
Polysome GO:0005844
A multiribosomal structure representing a linear array of ribosomes held together by messenger RNA. They represent the active complexes in cellular protein synthesis and are able to incorporate amino acids into polypeptides both in vivo and in vitro.
7 Q45KJ5 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS) Q8K3Y3 (/ISS)
Cytoplasmic stress granule GO:0010494
A dense aggregation in the cytosol composed of proteins and RNAs that appear when the cell is under stress.
7 Q45KJ5 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS) Q8K3Y3 (/ISS)
Ribonucleoprotein complex GO:1990904
A macromolecular complex containing both protein and RNA molecules.
7 Q45KJ5 (/ISS) Q5EB47 (/ISS) Q5EB47 (/ISS) Q803L0 (/ISS) Q8JHC4 (/ISS) Q8JHC4 (/ISS) Q8K3Y3 (/ISS)
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.
3 A0A1B0GVD3 (/IDA) Q6ZN17 (/IDA) Q9H9Z2 (/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.
3 A0A1B0GVD3 (/IDA) Q6ZN17 (/IDA) Q8K3Y3 (/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 A0A1B0GVD3 (/IDA) Q6ZN17 (/IDA) Q9VRN5 (/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.
2 Q45KJ6 (/ISO) Q8K3Y3 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 Q8K3Y3 (/IDA) Q9H9Z2 (/IDA)
P-body GO:0000932
A focus in the cytoplasm where mRNAs may become inactivated by decapping or some other mechanism. Protein and RNA localized to these foci are involved in mRNA degradation, nonsense-mediated mRNA decay (NMD), translational repression, and RNA-mediated gene silencing.
1 Q9H9Z2 (/IDA)
P-body GO:0000932
A focus in the cytoplasm where mRNAs may become inactivated by decapping or some other mechanism. Protein and RNA localized to these foci are involved in mRNA degradation, nonsense-mediated mRNA decay (NMD), translational repression, and RNA-mediated gene silencing.
1 Q8K3Y3 (/ISO)
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.
1 Q45KJ6 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q8K3Y3 (/ISO)
Rough endoplasmic reticulum GO:0005791
The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae.
1 Q8K3Y3 (/IDA)
Rough endoplasmic reticulum GO:0005791
The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae.
1 Q9H9Z2 (/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.
1 Q45KJ6 (/ISO)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
1 Q9H9Z2 (/TAS)
Polysome GO:0005844
A multiribosomal structure representing a linear array of ribosomes held together by messenger RNA. They represent the active complexes in cellular protein synthesis and are able to incorporate amino acids into polypeptides both in vivo and in vitro.
1 Q9H9Z2 (/IDA)
Polysome GO:0005844
A multiribosomal structure representing a linear array of ribosomes held together by messenger RNA. They represent the active complexes in cellular protein synthesis and are able to incorporate amino acids into polypeptides both in vivo and in vitro.
1 Q8K3Y3 (/ISO)
Cytoplasmic stress granule GO:0010494
A dense aggregation in the cytosol composed of proteins and RNAs that appear when the cell is under stress.
1 Q9H9Z2 (/IDA)
Cytoplasmic stress granule GO:0010494
A dense aggregation in the cytosol composed of proteins and RNAs that appear when the cell is under stress.
1 Q8K3Y3 (/ISO)
Ribonucleoprotein complex GO:1990904
A macromolecular complex containing both protein and RNA molecules.
1 Q9H9Z2 (/IDA)
Ribonucleoprotein complex GO:1990904
A macromolecular complex containing both protein and RNA molecules.
1 Q8K3Y3 (/ISO)