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 49: Polyadenylate-binding protein

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).
11 B8K0D5 (/IPI) P20965 (/IPI) P20965 (/IPI) P21187 (/IPI) P21187 (/IPI) Q13310 (/IPI) Q13310 (/IPI) Q13310 (/IPI) Q6TGY6 (/IPI) Q803E7 (/IPI)
(1 more)
Poly(A) binding GO:0008143
Interacting selectively and non-covalently with a sequence of adenylyl residues in an RNA molecule, such as the poly(A) tail, a sequence of adenylyl residues at the 3' end of eukaryotic mRNA.
8 A2A5N3 (/TAS) B2RXY9 (/TAS) P21187 (/TAS) P21187 (/TAS) Q13310 (/TAS) Q13310 (/TAS) Q13310 (/TAS) Q62029 (/TAS)
Poly(A) binding GO:0008143
Interacting selectively and non-covalently with a sequence of adenylyl residues in an RNA molecule, such as the poly(A) tail, a sequence of adenylyl residues at the 3' end of eukaryotic mRNA.
7 P21187 (/ISS) P21187 (/ISS) Q62029 (/ISS) Q6DEY7 (/ISS) Q6GR16 (/ISS) Q6IP09 (/ISS) Q6IP09 (/ISS)
Poly(A) binding GO:0008143
Interacting selectively and non-covalently with a sequence of adenylyl residues in an RNA molecule, such as the poly(A) tail, a sequence of adenylyl residues at the 3' end of eukaryotic mRNA.
6 P20965 (/IDA) P20965 (/IDA) Q13310 (/IDA) Q13310 (/IDA) Q13310 (/IDA) Q98SP8 (/IDA)
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.
5 A3KFU5 (/IDA) A3KFU8 (/IDA) Q6PHQ9 (/IDA) Q91YZ8 (/IDA) Q99LF8 (/IDA)
Poly(A) binding GO:0008143
Interacting selectively and non-covalently with a sequence of adenylyl residues in an RNA molecule, such as the poly(A) tail, a sequence of adenylyl residues at the 3' end of eukaryotic mRNA.
5 A3KFU5 (/ISO) A3KFU8 (/ISO) Q6PHQ9 (/ISO) Q91YZ8 (/ISO) Q99LF8 (/ISO)
Poly(U) RNA binding GO:0008266
Interacting selectively and non-covalently with a sequence of uracil residues in an RNA molecule.
5 A3KFU5 (/ISO) A3KFU8 (/ISO) Q6PHQ9 (/ISO) Q91YZ8 (/ISO) Q99LF8 (/ISO)
Eukaryotic initiation factor 4G binding GO:0031370
Interacting selectively and non-covalently with eukaryotic initiation factor 4G, a polypeptide factor involved in the initiation of ribosome-mediated translation.
4 Q6DEY7 (/ISS) Q6GR16 (/ISS) Q6IP09 (/ISS) Q6IP09 (/ISS)
Protein self-association GO:0043621
Interacting selectively and non-covalently with a domain within the same polypeptide.
4 Q6DEY7 (/ISS) Q6GR16 (/ISS) Q6IP09 (/ISS) Q6IP09 (/ISS)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
3 Q13310 (/HDA) Q13310 (/HDA) Q13310 (/HDA)
Poly(U) RNA binding GO:0008266
Interacting selectively and non-covalently with a sequence of uracil residues in an RNA molecule.
3 Q13310 (/IDA) Q13310 (/IDA) Q13310 (/IDA)
Eukaryotic initiation factor 4G binding GO:0031370
Interacting selectively and non-covalently with eukaryotic initiation factor 4G, a polypeptide factor involved in the initiation of ribosome-mediated translation.
3 P20965 (/IPI) P20965 (/IPI) Q98SP8 (/IPI)
Protein self-association GO:0043621
Interacting selectively and non-covalently with a domain within the same polypeptide.
3 P20965 (/IPI) P20965 (/IPI) Q98SP8 (/IPI)
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 P21187 (/ISS) P21187 (/ISS)
MRNA 3'-UTR binding GO:0003730
Interacting selectively and non-covalently with the 3' untranslated region of an mRNA molecule.
2 P21187 (/IDA) P21187 (/IDA)

There are 37 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
Regulation of mRNA stability GO:0043488
Any process that modulates the propensity of mRNA molecules to degradation. Includes processes that both stabilize and destabilize mRNAs.
5 A3KFU5 (/IMP) A3KFU8 (/IMP) Q6PHQ9 (/IMP) Q91YZ8 (/IMP) Q99LF8 (/IMP)
Myeloid cell development GO:0061515
The process whose specific outcome is the progression of a myeloid cell over time, from its formation to the mature structure.
5 A3KFU5 (/IMP) A3KFU8 (/IMP) Q6PHQ9 (/IMP) Q91YZ8 (/IMP) Q99LF8 (/IMP)
Gene silencing by RNA GO:0031047
Any process in which RNA molecules inactivate expression of target genes.
4 P20965 (/ISS) P20965 (/ISS) Q6IP09 (/ISS) Q6IP09 (/ISS)
MRNA stabilization GO:0048255
Prevention of degradation of mRNA molecules. In the absence of compensating changes in other processes, the slowing of mRNA degradation can result in an overall increase in the population of active mRNA molecules.
4 Q6DEY7 (/ISS) Q6GR16 (/ISS) Q6IP09 (/ISS) Q6IP09 (/ISS)
Negative regulation of nuclear-transcribed mRNA poly(A) tail shortening GO:0060212
Any process that decreases the frequency, rate or extent of poly(A) tail shortening of a nuclear-transcribed mRNA. Poly(A) tail shortening is the decrease in length of the poly(A) tail of an mRNA from full length to an oligo(A) length.
4 Q6DEY7 (/ISS) Q6GR16 (/ISS) Q6IP09 (/ISS) Q6IP09 (/ISS)
Positive regulation of nuclear-transcribed mRNA poly(A) tail shortening GO:0060213
Any process that increases the frequency, rate or extent of poly(A) tail shortening of a nuclear-transcribed mRNA. Poly(A) tail shortening is the decrease in length of the poly(A) tail of an mRNA from full length to an oligo(A) length.
4 P20965 (/ISS) P20965 (/ISS) Q6IP09 (/ISS) Q6IP09 (/ISS)
Positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay GO:1900153
Any process that activates or increases the frequency, rate or extent of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay.
4 P20965 (/ISS) P20965 (/ISS) Q6IP09 (/ISS) Q6IP09 (/ISS)
RNA processing GO:0006396
Any process involved in the conversion of one or more primary RNA transcripts into one or more mature RNA molecules.
3 Q13310 (/TAS) Q13310 (/TAS) Q13310 (/TAS)
RNA catabolic process GO:0006401
The chemical reactions and pathways resulting in the breakdown of RNA, ribonucleic acid, one of the two main type of nucleic acid, consisting of a long, unbranched macromolecule formed from ribonucleotides joined in 3',5'-phosphodiester linkage.
3 Q13310 (/TAS) Q13310 (/TAS) Q13310 (/TAS)
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.
3 Q13310 (/TAS) Q13310 (/TAS) Q13310 (/TAS)
Heart development GO:0007507
The process whose specific outcome is the progression of the heart over time, from its formation to the mature structure. The heart is a hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood.
3 F1QB54 (/IMP) Q499B6 (/IMP) Q6P5M4 (/IMP)
Blood coagulation GO:0007596
The sequential process in which the multiple coagulation factors of the blood interact, ultimately resulting in the formation of an insoluble fibrin clot; it may be divided into three stages: stage 1, the formation of intrinsic and extrinsic prothrombin converting principle; stage 2, the formation of thrombin; stage 3, the formation of stable fibrin polymers.
3 Q13310 (/TAS) Q13310 (/TAS) Q13310 (/TAS)
MRNA stabilization GO:0048255
Prevention of degradation of mRNA molecules. In the absence of compensating changes in other processes, the slowing of mRNA degradation can result in an overall increase in the population of active mRNA molecules.
3 P20965 (/IDA) P20965 (/IDA) Q98SP8 (/IDA)
Negative regulation of nuclear-transcribed mRNA poly(A) tail shortening GO:0060212
Any process that decreases the frequency, rate or extent of poly(A) tail shortening of a nuclear-transcribed mRNA. Poly(A) tail shortening is the decrease in length of the poly(A) tail of an mRNA from full length to an oligo(A) length.
3 P20965 (/IDA) P20965 (/IDA) Q98SP8 (/IDA)
MRNA splicing, via spliceosome GO:0000398
The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced.
2 P21187 (/IC) P21187 (/IC)
Oocyte maturation GO:0001556
A developmental process, independent of morphogenetic (shape) change, that is required for an oocyte to attain its fully functional state. Oocyte maturation commences after reinitiation of meiosis commonly starting with germinal vesicle breakdown, and continues up to the second meiotic arrest prior to fertilization.
2 A2A5N3 (/IDA) B2RXY9 (/IDA)
Oocyte maturation GO:0001556
A developmental process, independent of morphogenetic (shape) change, that is required for an oocyte to attain its fully functional state. Oocyte maturation commences after reinitiation of meiosis commonly starting with germinal vesicle breakdown, and continues up to the second meiotic arrest prior to fertilization.
2 A2A5N3 (/IMP) B2RXY9 (/IMP)
Chromatin remodeling GO:0006338
Dynamic structural changes to eukaryotic chromatin occurring throughout the cell division cycle. These changes range from the local changes necessary for transcriptional regulation to global changes necessary for chromosome segregation.
2 A2A5N3 (/IDA) B2RXY9 (/IDA)
Chromatin remodeling GO:0006338
Dynamic structural changes to eukaryotic chromatin occurring throughout the cell division cycle. These changes range from the local changes necessary for transcriptional regulation to global changes necessary for chromosome segregation.
2 A2A5N3 (/IMP) B2RXY9 (/IMP)
MRNA polyadenylation GO:0006378
The enzymatic addition of a sequence of 40-200 adenylyl residues at the 3' end of a eukaryotic mRNA primary transcript.
2 A2A5N3 (/IMP) B2RXY9 (/IMP)
Male meiosis cytokinesis GO:0007112
A cell cycle process that occurs as part of the male meiotic cell cycle and results in the division of the cytoplasm of a cell to produce two daughter cells.
2 P21187 (/IMP) P21187 (/IMP)
Male meiotic nuclear division GO:0007140
A cell cycle process by which the cell nucleus divides as part of a meiotic cell cycle in the male germline.
2 P21187 (/IMP) P21187 (/IMP)
Chemical synaptic transmission GO:0007268
The vesicular release of classical neurotransmitter molecules from a presynapse, across a chemical synapse, the subsequent activation of neurotransmitter receptors at the postsynapse of a target cell (neuron, muscle, or secretory cell) and the effects of this activation on the postsynaptic membrane potential and ionic composition of the postsynaptic cytosol. This process encompasses both spontaneous and evoked release of neurotransmitter and all parts of synaptic vesicle exocytosis. Evoked transmission starts with the arrival of an action potential at the presynapse.
2 P21187 (/IMP) P21187 (/IMP)
Spermatogenesis GO:0007283
The process of formation of spermatozoa, including spermatocytogenesis and spermiogenesis.
2 P21187 (/IMP) P21187 (/IMP)
Spermatid nucleus differentiation GO:0007289
The specialization of the spermatid nucleus during the development of a spermatid into a mature male gamete competent for fertilization.
2 P21187 (/IMP) P21187 (/IMP)
Dorsal/ventral pattern formation GO:0009953
The regionalization process in which the areas along the dorsal/ventral axis are established that will lead to differences in cell differentiation. The dorsal/ventral axis is defined by a line that runs orthogonal to both the anterior/posterior and left/right axes. The dorsal end is defined by the upper or back side of an organism. The ventral end is defined by the lower or front side of an organism.
2 P21187 (/IMP) P21187 (/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.
2 Q6DEY7 (/ISS) Q6GR16 (/ISS)
Regulation of compound eye photoreceptor development GO:0045314
Any process that modulates the frequency, rate or extent of compound eye photoreceptor development.
2 P21187 (/IGI) P21187 (/IGI)
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.
2 P21187 (/IGI) P21187 (/IGI)
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.
2 P21187 (/TAS) P21187 (/TAS)
Chromatin-mediated maintenance of transcription GO:0048096
Maintenance of transcription by remodelling of chromatin into an 'open configuration'. Once established, this regulation is mitotically stable and is maintained over many cell divisions. It is also heritable.
2 A2A5N3 (/IMP) B2RXY9 (/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.
2 P21187 (/IMP) P21187 (/IMP)
Oocyte development GO:0048599
The process whose specific outcome is the progression of an oocyte over time, from initial commitment of the cell to its specific fate, to the fully functional differentiated cell.
2 P21187 (/IMP) P21187 (/IMP)
Nucleus localization GO:0051647
Any process in which the nucleus is transported to, and/or maintained in, a specific location within the cell.
2 A2A5N3 (/IMP) B2RXY9 (/IMP)
Negative regulation of neuron death GO:1901215
Any process that stops, prevents or reduces the frequency, rate or extent of neuron death.
2 P21187 (/IGI) P21187 (/IGI)
MRNA polyadenylation GO:0006378
The enzymatic addition of a sequence of 40-200 adenylyl residues at the 3' end of a eukaryotic mRNA primary transcript.
1 Q62029 (/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 Q98SP8 (/IEP)

There are 20 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
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
6 P21187 (/IDA) P21187 (/IDA) Q13310 (/IDA) Q13310 (/IDA) Q13310 (/IDA) Q98SP8 (/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.
6 B1ANR0 (/IDA) B1ANR0 (/IDA) B1ANR0 (/IDA) Q13310 (/IDA) Q13310 (/IDA) Q13310 (/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.
5 A3KFU5 (/ISO) A3KFU8 (/ISO) Q6PHQ9 (/ISO) Q91YZ8 (/ISO) Q99LF8 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
5 A3KFU5 (/ISO) A3KFU8 (/ISO) Q6PHQ9 (/ISO) Q91YZ8 (/ISO) Q99LF8 (/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.
5 A3KFU5 (/ISO) A3KFU8 (/ISO) Q6PHQ9 (/ISO) Q91YZ8 (/ISO) Q99LF8 (/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.
5 A3KFU5 (/ISO) A3KFU8 (/ISO) Q6PHQ9 (/ISO) Q91YZ8 (/ISO) Q99LF8 (/ISO)
Ribonucleoprotein complex GO:1990904
A macromolecular complex containing both protein and RNA molecules.
5 P21187 (/IDA) P21187 (/IDA) Q13310 (/IDA) Q13310 (/IDA) Q13310 (/IDA)
Ribonucleoprotein complex GO:1990904
A macromolecular complex containing both protein and RNA molecules.
5 A3KFU5 (/ISO) A3KFU8 (/ISO) Q6PHQ9 (/ISO) Q91YZ8 (/ISO) Q99LF8 (/ISO)
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 Q13310 (/IDA) Q13310 (/IDA) Q13310 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
3 Q13310 (/TAS) Q13310 (/TAS) Q13310 (/TAS)
Cytoplasmic stress granule GO:0010494
A dense aggregation in the cytosol composed of proteins and RNAs that appear when the cell is under stress.
3 Q13310 (/IDA) Q13310 (/IDA) Q13310 (/IDA)
Protein-containing complex GO:0032991
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
3 B8K0D5 (/IPI) Q6TGY6 (/IPI) Q803E7 (/IPI)
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 P21187 (/HDA) P21187 (/HDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 Q6DEY7 (/ISS) Q6GR16 (/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 P21187 (/HDA) P21187 (/HDA)
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.
2 P20965 (/IDA) P20965 (/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.
2 Q6IP09 (/ISS) Q6IP09 (/ISS)
Precatalytic spliceosome GO:0071011
A spliceosomal complex that is formed by the recruitment of a preassembled U5-containing tri-snRNP to the prespliceosome. Although all 5 snRNPs are present, the precatalytic spliceosome is catalytically inactive. The precatalytic spliceosome includes many proteins in addition to those found in the associated snRNPs.
2 P21187 (/HDA) P21187 (/HDA)
Catalytic step 2 spliceosome GO:0071013
A spliceosomal complex that contains three snRNPs, including U5, bound to a splicing intermediate in which the first catalytic cleavage of the 5' splice site has occurred. The precise subunit composition differs significantly from that of the catalytic step 1, or activated, spliceosome, and includes many proteins in addition to those found in the associated snRNPs.
2 P21187 (/HDA) P21187 (/HDA)
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.
1 Q4VXU2 (/HDA)