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: 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 33: heterogeneous nuclear ribonucleoprotein M isoform ...

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 18 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).
13 P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI)
(3 more)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
11 P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA)
(1 more)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
10 P52272 (/NAS) P52272 (/NAS) P52272 (/NAS) P52272 (/NAS) P52272 (/NAS) P52272 (/NAS) P52272 (/NAS) P52272 (/NAS) P52272 (/NAS) P52272 (/NAS)
Protein domain specific binding GO:0019904
Interacting selectively and non-covalently with a specific domain of a protein.
10 P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI) P52272 (/IPI)
RNA polymerase II proximal promoter sequence-specific DNA binding GO:0000978
Interacting selectively and non-covalently with a specific upstream regulatory DNA sequence (transcription factor recognition sequence or binding site) located in the proximal promoter of a gene transcribed by RNA polymerase II. The proximal promoter is in cis with and relatively close to the core promoter.
1 Q8C854 (/IDA)
DNA-binding transcription factor activity, RNA polymerase II-specific GO:0000981
A protein or a member of a complex that interacts selectively and non-covalently with a specific DNA sequence (sometimes referred to as a motif) within the regulatory region of a RNA polymerase II-transcribed gene to modulate transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units.
1 Q9Y655 (/TAS)
DNA-binding transcription repressor activity, RNA polymerase II-specific GO:0001227
A protein or a member of a complex that interacts selectively and non-covalently with a specific DNA sequence (sometimes referred to as a motif) within the regulatory region of a RNA polymerase II-transcribed gene to repress or decrease transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units.
1 Q8C854 (/IDA)
Transcription coactivator activity GO:0003713
A protein or a member of a complex that interacts specifically and non-covalently with a DNA-bound DNA-binding transcription factor to activate the transcription of specific genes. Coactivators often act by altering chromatin structure and modifications. For example, one class of transcription coregulators modifies chromatin structure through covalent modification of histones. A second ATP-dependent class modifies the conformation of chromatin. Another type of coregulator activity is the bridging of a DNA-binding transcription factor to the basal transcription machinery. The Mediator complex, which bridges transcription factors and RNA polymerase, is also a transcription coactivator.
1 Q9Y655 (/TAS)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
1 Q62826 (/TAS)
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.
1 Q8MSI9 (/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.
1 Q8MSI9 (/ISS)
MRNA 3'-UTR binding GO:0003730
Interacting selectively and non-covalently with the 3' untranslated region of an mRNA molecule.
1 Q8MSI9 (/IDA)
MRNA 3'-UTR binding GO:0003730
Interacting selectively and non-covalently with the 3' untranslated region of an mRNA molecule.
1 Q8MSI9 (/TAS)
Protein domain specific binding GO:0019904
Interacting selectively and non-covalently with a specific domain of a protein.
1 Q9D0E1 (/ISO)
Calcium-dependent protein binding GO:0048306
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules), in the presence of calcium.
1 Q62826 (/IDA)
Calcium-dependent protein binding GO:0048306
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules), in the presence of calcium.
1 Q9D0E1 (/ISO)
Protein antigen binding GO:1990405
Interacting selectively and non-covalently with a protein antigen.
1 Q62826 (/IDA)
Protein antigen binding GO:1990405
Interacting selectively and non-covalently with a protein antigen.
1 Q9D0E1 (/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
Alternative mRNA splicing, via spliceosome GO:0000380
The process of generating multiple mRNA molecules from a given set of exons by differential use of exons from the primary transcript(s) to form multiple mature mRNAs that vary in their exon composition.
10 P52272 (/IMP) P52272 (/IMP) P52272 (/IMP) P52272 (/IMP) P52272 (/IMP) P52272 (/IMP) P52272 (/IMP) P52272 (/IMP) P52272 (/IMP) P52272 (/IMP)
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.
10 P52272 (/IC) P52272 (/IC) P52272 (/IC) P52272 (/IC) P52272 (/IC) P52272 (/IC) P52272 (/IC) P52272 (/IC) P52272 (/IC) P52272 (/IC)
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.
10 P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS)
Fibroblast growth factor receptor signaling pathway GO:0008543
The series of molecular signals generated as a consequence of a fibroblast growth factor receptor binding to one of its physiological ligands.
10 P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS)
RNA metabolic process GO:0016070
The cellular chemical reactions and pathways involving 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.
10 P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS)
Definitive hemopoiesis GO:0060216
A second wave of blood cell production that, in vertebrates, generates long-term hemopoietic stem cells that continously provide erythroid, myeloid and lymphoid lineages throughout adulthood.
4 B0V3S8 (/IMP) F1QRQ0 (/IMP) Q32PS6 (/IMP) Q592E5 (/IMP)
Negative regulation of transcription by RNA polymerase II GO:0000122
Any process that stops, prevents, or reduces the frequency, rate or extent of transcription mediated by RNA polymerase II.
1 Q8C854 (/IDA)
Mitotic cell cycle GO:0000278
Progression through the phases of the mitotic cell cycle, the most common eukaryotic cell cycle, which canonically comprises four successive phases called G1, S, G2, and M and includes replication of the genome and the subsequent segregation of chromosomes into daughter cells. In some variant cell cycles nuclear replication or nuclear division may not be followed by cell division, or G1 and G2 phases may be absent.
1 Q8MSI9 (/HMP)
Alternative mRNA splicing, via spliceosome GO:0000380
The process of generating multiple mRNA molecules from a given set of exons by differential use of exons from the primary transcript(s) to form multiple mature mRNAs that vary in their exon composition.
1 Q9D0E1 (/ISO)
Transcription by RNA polymerase II GO:0006366
The synthesis of RNA from a DNA template by RNA polymerase II (RNAP II), originating at an RNA polymerase II promoter. Includes transcription of messenger RNA (mRNA) and certain small nuclear RNAs (snRNAs).
1 Q9Y655 (/TAS)
Pole cell development GO:0007277
The process whose specific outcome is the progression of the pole cell over time, from its formation to the mature structure.
1 Q8MSI9 (/IGI)
Myoblast fate determination GO:0007518
The cell fate determination process in which a cell becomes capable of differentiating autonomously into a myoblast regardless of its environment; upon determination, the cell fate cannot be reversed. A myoblast is a mononucleate cell type that, by fusion with other myoblasts, gives rise to the myotubes that eventually develop into skeletal muscle fibers.
1 Q9Y655 (/TAS)
Intracellular mRNA localization GO:0008298
Any process in which mRNA is transported to, or maintained in, a specific location within the cell.
1 Q8MSI9 (/IMP)
Anterior/posterior axis specification, embryo GO:0008595
The specification of the anterior/posterior axis of the embryo by the products of genes expressed maternally and genes expressed in the zygote.
1 Q8MSI9 (/IMP)
Anterior/posterior pattern specification GO:0009952
The regionalization process in which specific areas of cell differentiation are determined along the anterior-posterior axis. The anterior-posterior axis is defined by a line that runs from the head or mouth of an organism to the tail or opposite end of the organism.
1 Q8MSI9 (/IGI)
Myotube differentiation GO:0014902
The process in which a relatively unspecialized cell acquires specialized features of a myotube cell. Myotube differentiation starts with myoblast fusion and the appearance of specific cell markers (this is the cell development step). Then individual myotubes can fuse to form bigger myotubes and start to contract. Myotubes are multinucleated cells that are formed when proliferating myoblasts exit the cell cycle, differentiate and fuse.
1 Q9P2K5 (/IEP)
Neuron differentiation GO:0030182
The process in which a relatively unspecialized cell acquires specialized features of a neuron.
1 Q9P2K5 (/IEP)
Segmentation GO:0035282
The regionalization process that divides an organism or part of an organism into a series of semi-repetitive parts, or segments, often arranged along a longitudinal axis.
1 Q8MSI9 (/IGI)
Pole plasm oskar mRNA localization GO:0045451
Any process in which oskar mRNA is transported to, or maintained in, the oocyte pole plasm.
1 Q8MSI9 (/IGI)
Cellular response to lipopolysaccharide GO:0071222
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 lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria.
1 Q62826 (/IEP)
Positive regulation of protein localization to nucleus GO:1900182
Any process that activates or increases the frequency, rate or extent of protein localization to nucleus.
1 Q62826 (/IMP)
Positive regulation of protein localization to nucleus GO:1900182
Any process that activates or increases the frequency, rate or extent of protein localization to nucleus.
1 Q9D0E1 (/ISO)
Positive regulation of protein import GO:1904591
Any process that activates or increases the frequency, rate or extent of protein import.
1 Q62826 (/IDA)
Positive regulation of protein import GO:1904591
Any process that activates or increases the frequency, rate or extent of protein import.
1 Q9D0E1 (/ISO)
Cellular response to carcinoembryonic antigen GO:1990831
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 carcinoembryonic antigen stimulus. The carcinoembryonic antigens represent a family of glycoproteins
1 Q62826 (/IEP)

There are 25 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
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
17 A0A087X0X3 (/IDA) A0A087X0X3 (/IDA) A0A087X0X3 (/IDA) A0A087X0X3 (/IDA) A0A087X0X3 (/IDA) A0A087X0X3 (/IDA) A0A087X0X3 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA)
(7 more)
Collagen-containing extracellular matrix GO:0062023
An extracellular matrix consisting mainly of proteins (especially collagen) and glycosaminoglycans (mostly as proteoglycans) that provides not only essential physical scaffolding for the cellular constituents but can also initiate crucial biochemical and biomechanical cues required for tissue morphogenesis, differentiation and homeostasis. The components are secreted by cells in the vicinity and form a sheet underlying or overlying cells such as endothelial and epithelial cells.
11 P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA)
(1 more)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
10 P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS) P52272 (/TAS)
Spliceosomal complex GO:0005681
Any of a series of ribonucleoprotein complexes that contain snRNA(s) and small nuclear ribonucleoproteins (snRNPs), and are formed sequentially during the spliceosomal splicing of one or more substrate RNAs, and which also contain the RNA substrate(s) from the initial target RNAs of splicing, the splicing intermediate RNA(s), to the final RNA products. During cis-splicing, the initial target RNA is a single, contiguous RNA transcript, whether mRNA, snoRNA, etc., and the released products are a spliced RNA and an excised intron, generally as a lariat structure. During trans-splicing, there are two initial substrate RNAs, the spliced leader RNA and a pre-mRNA.
10 P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
10 P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA)
Nuclear matrix GO:0016363
The dense fibrillar network lying on the inner side of the nuclear membrane.
10 P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA)
Paraspeckles GO:0042382
Discrete subnuclear bodies in the interchromatin nucleoplasmic space, often located adjacent to nuclear specks. 10-20 paraspeckles are typically found in human cell nuclei.
10 P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA)
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.
10 P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/HDA) P52272 (/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.
10 P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/IDA) P52272 (/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 Q8MSI9 (/IDA) Q9P2K5 (/IDA)
Nuclear chromatin GO:0000790
The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome in the nucleus.
1 Q8MSI9 (/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.
1 Q8C854 (/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.
1 Q9Y655 (/TAS)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q8MSI9 (/HDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q9D0E1 (/ISO)
Spliceosomal complex GO:0005681
Any of a series of ribonucleoprotein complexes that contain snRNA(s) and small nuclear ribonucleoproteins (snRNPs), and are formed sequentially during the spliceosomal splicing of one or more substrate RNAs, and which also contain the RNA substrate(s) from the initial target RNAs of splicing, the splicing intermediate RNA(s), to the final RNA products. During cis-splicing, the initial target RNA is a single, contiguous RNA transcript, whether mRNA, snoRNA, etc., and the released products are a spliced RNA and an excised intron, generally as a lariat structure. During trans-splicing, there are two initial substrate RNAs, the spliced leader RNA and a pre-mRNA.
1 Q9D0E1 (/ISO)
Spliceosomal complex GO:0005681
Any of a series of ribonucleoprotein complexes that contain snRNA(s) and small nuclear ribonucleoproteins (snRNPs), and are formed sequentially during the spliceosomal splicing of one or more substrate RNAs, and which also contain the RNA substrate(s) from the initial target RNAs of splicing, the splicing intermediate RNA(s), to the final RNA products. During cis-splicing, the initial target RNA is a single, contiguous RNA transcript, whether mRNA, snoRNA, etc., and the released products are a spliced RNA and an excised intron, generally as a lariat structure. During trans-splicing, there are two initial substrate RNAs, the spliced leader RNA and a pre-mRNA.
1 Q570Z0 (/ISS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q8MSI9 (/IDA)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
1 Q62826 (/IDA)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
1 Q9D0E1 (/ISO)
Nuclear matrix GO:0016363
The dense fibrillar network lying on the inner side of the nuclear membrane.
1 Q9D0E1 (/ISO)
Omega speckle GO:0035062
A nucleoplasmic speckle distributed in the interchromatin space of cells in close proximity to chromatin. Omega speckles are distinct from interchromatin granules and contain heterogeneous nuclear RNA-binding proteins (hnRNPs).
1 Q8MSI9 (/IDA)
Paraspeckles GO:0042382
Discrete subnuclear bodies in the interchromatin nucleoplasmic space, often located adjacent to nuclear specks. 10-20 paraspeckles are typically found in human cell nuclei.
1 Q9D0E1 (/ISO)
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.
1 Q9D0E1 (/ISO)
Ribonucleoprotein complex GO:1990904
A macromolecular complex containing both protein and RNA molecules.
1 Q8MSI9 (/IDA)
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