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:

"
paz domain
".

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 8: Protein argonaute 7

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 11 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
SiRNA binding GO:0035197
Interacting selectively and non-covalently with a small interfering RNA, a 21-23 nucleotide RNA that is processed from double stranded RNA (dsRNA) by an RNAse enzyme.
5 O48771 (/IDA) Q21691 (/IDA) Q84VQ0 (/IDA) Q9SHF3 (/IDA) Q9ZVD5 (/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).
4 O74957 (/IPI) Q21691 (/IPI) Q9SHF3 (/IPI) Q9ZVD5 (/IPI)
Chromatin binding GO:0003682
Interacting selectively and non-covalently with chromatin, the network of fibers of DNA, protein, and sometimes RNA, that make up the chromosomes of the eukaryotic nucleus during interphase.
1 Q9ZVD5 (/IDA)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
1 O74957 (/IDA)
Single-stranded RNA binding GO:0003727
Interacting selectively and non-covalently with single-stranded RNA.
1 O74957 (/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 Q9SHF3 (/IDA)
Endoribonuclease activity GO:0004521
Catalysis of the hydrolysis of ester linkages within ribonucleic acid by creating internal breaks.
1 Q9ZVD5 (/IMP)
Endoribonuclease activity, producing 5'-phosphomonoesters GO:0016891
Catalysis of the hydrolysis of ester linkages within ribonucleic acids by creating internal breaks to yield 5'-phosphomonoesters.
1 O74957 (/IDA)
DEAD/H-box RNA helicase binding GO:0017151
Interacting selectively and non-covalently with the enzyme DEAD/H-box RNA helicase.
1 Q21770 (/IPI)
SiRNA binding GO:0035197
Interacting selectively and non-covalently with a small interfering RNA, a 21-23 nucleotide RNA that is processed from double stranded RNA (dsRNA) by an RNAse enzyme.
1 Q9ZVD5 (/IMP)
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 Q9ZVD5 (/IDA)

There are 41 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
Defense response to virus GO:0051607
Reactions triggered in response to the presence of a virus that act to protect the cell or organism.
6 O48771 (/IDA) Q84VQ0 (/IDA) Q9C793 (/IDA) Q9SHF2 (/IDA) Q9SHF3 (/IDA) Q9ZVD5 (/IDA)
RNA interference GO:0016246
The process in which double-stranded RNAs silence cognate genes. Involves posttranscriptional gene inactivation ('silencing') both of transgenes or dsRNA introduced into a germline, and of the host gene(s) homologous to the transgenes or dsRNA. This silencing is triggered by the introduction of transgenes or double-stranded RNA (dsRNA), and can occur through a specific decrease in the level of mRNA, or by negative regulation of translation, of both host genes and transgenes.
3 Q09249 (/IMP) Q21691 (/IMP) Q75HC2 (/IMP)
DNA methylation GO:0006306
The covalent transfer of a methyl group to either N-6 of adenine or C-5 or N-4 of cytosine.
2 O48771 (/IMP) Q9ZVD5 (/IMP)
Modulation by virus of host morphology or physiology GO:0019048
The process in which a virus effects a change in the structure or processes of its host organism.
2 Q9SHF3 (/IMP) Q9ZVD5 (/IMP)
Production of siRNA involved in RNA interference GO:0030422
Cleavage of double-stranded RNA to form small interfering RNA molecules (siRNAs) of 21-23 nucleotides, in the context of RNA interference.
2 O48771 (/IMP) Q9ZVD5 (/IMP)
Production of siRNA involved in chromatin silencing by small RNA GO:0070919
Cleavage of double-stranded RNA to form small interfering RNA molecules (siRNAs) of 21-23 nucleotides, in the context of chromatin silencing by small RNA.
2 O74957 (/IMP) Q9ZVD5 (/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 O74957 (/IMP)
Chromatin silencing GO:0006342
Repression of transcription by altering the structure of chromatin, e.g. by conversion of large regions of DNA into an inaccessible state often called heterochromatin.
1 O48771 (/IGI)
Chromatin silencing GO:0006342
Repression of transcription by altering the structure of chromatin, e.g. by conversion of large regions of DNA into an inaccessible state often called heterochromatin.
1 Q9ZVD5 (/IMP)
RNA import into nucleus GO:0006404
The import of RNA from the cytoplasm to the nucleus.
1 Q21691 (/IMP)
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 Q09249 (/IMP)
Olfactory learning GO:0008355
Any process in an organism in which a relatively long-lasting adaptive behavioral change occurs in response to (repeated) exposure to an olfactory cue.
1 Q21691 (/IMP)
Megasporogenesis GO:0009554
The process in which the megasporocyte undergoes meiosis, giving rise to four haploid megaspores in the nucellus.
1 Q84VQ0 (/IMP)
Defense response to bacterium, incompatible interaction GO:0009816
A response of an organism to a bacterium that prevents the occurrence or spread of disease.
1 Q9ZVD5 (/IMP)
Vegetative phase change GO:0010050
Any process involved in the transition of a plant from a juvenile phase of vegetative development to an adult phase of vegetative development.
1 Q9C793 (/IMP)
Production of ta-siRNAs involved in RNA interference GO:0010267
Cleavage of double-stranded RNA to form trans-acting small interfering RNA molecules (siRNAs) of 21-23 nucleotides. ta-siRNAs arise from PolII genes and function like miRNAs to guide cleavage of target mRNAs.
1 Q9C793 (/IMP)
Maintenance of shoot apical meristem identity GO:0010492
The process in which an organism retains a population of shoot apical meristem cells, preventing the commitment of all stem cell progeny to a differentiated cell fate.
1 Q75HC2 (/IMP)
Negative regulation of transposition GO:0010529
Any process that decreases the frequency, rate or extent of transposition. Transposition results in the movement of discrete segments of DNA between nonhomologous sites.
1 Q84VQ0 (/IMP)
Production of lsiRNA involved in RNA interference GO:0010599
Cleavage of double-stranded RNA to form lsiRNA (long small interfering RNA), a class of siRNAs 30 to 40 nt in length. lsiRNAs are induced by pathogen infection or under specific growth conditions.
1 Q9C793 (/IMP)
Gene silencing GO:0016458
Any process carried out at the cellular level that results in either long-term transcriptional repression via action on chromatin structure or RNA mediated, post-transcriptional repression of gene expression.
1 Q9ZVD5 (/IMP)
Chromatin silencing at centromere GO:0030702
Repression of transcription of centromeric DNA by altering the structure of chromatin.
1 O74957 (/IMP)
Chromatin silencing by small RNA GO:0031048
Repression of transcription by conversion of large regions of DNA into heterochromatin, directed by small RNAs sharing sequence identity to the repressed region.
1 O62275 (/IGI)
Chromatin silencing by small RNA GO:0031048
Repression of transcription by conversion of large regions of DNA into heterochromatin, directed by small RNAs sharing sequence identity to the repressed region.
1 O74957 (/IMP)
Chromatin silencing by small RNA GO:0031048
Repression of transcription by conversion of large regions of DNA into heterochromatin, directed by small RNAs sharing sequence identity to the repressed region.
1 Q9ZVD5 (/TAS)
Conversion of ds siRNA to ss siRNA involved in RNA interference GO:0033168
The process in which double-stranded siRNA molecules are converted to single-stranded siRNAs; required for the formation of a mature RITS complex during RNA interference.
1 O74957 (/IMP)
Co-transcriptional gene silencing by RNA interference machinery GO:0033562
A process in which the RNAi machinery mediates the degradation of nascent transcripts in association with chromatin.
1 O74957 (/IMP)
Gene silencing by miRNA GO:0035195
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: endolytic cleavage of the RNA (often mRNA) or mRNA translational repression, usually accompanied by poly-A tail shortening and subsequent degradation of the mRNA.
1 Q9C793 (/TAS)
Regulation of development, heterochronic GO:0040034
Any process that modulates the consistent predetermined time point at which an integrated living unit or organism progresses from an initial condition to a later condition and the rate at which this time point is reached.
1 Q9C793 (/IMP)
Defense response to bacterium GO:0042742
Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
1 Q9SHF3 (/IMP)
Plant ovule development GO:0048481
The process whose specific outcome is the progression of the ovule over time, from its formation to the mature structure. The ovule is the structure in seed plants enclosing the female gametophyte, and is composed of the nucellus, one or two integuments, and the funiculus; it develops into the seed.
1 Q84VQ0 (/IMP)
Histone H3-K9 methylation GO:0051567
The modification of histone H3 by addition of one or more methyl groups to lysine at position 9 of the histone.
1 Q9ZVD5 (/IMP)
Regulation of histone H3-K9 methylation GO:0051570
Any process that modulates the frequency, rate or extent of the covalent addition of a methyl group to the lysine at position 9 of histone H3.
1 O74957 (/IMP)
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 Q9SHF3 (/IMP)
Viral gene silencing in virus induced gene silencing GO:0060145
The posttranscriptional gene silencing of viral genes after viral infection.
1 Q9C793 (/IMP)
Heterochromatin organization involved in chromatin silencing GO:0070868
Any process that results in the specification, formation or maintenance of the physical structure of eukaryotic heterochromatin and contributes to chromatin silencing.
1 O74957 (/IMP)
Heterochromatin assembly involved in chromatin silencing by small RNA GO:0070924
The process in which an siRNA-associated RNA-induced silencing complex (siRISC) associates with nascent transcripts and RNA polymerase to induce the formation of heterochromatin.
1 O74957 (/IMP)
Nuclear polyadenylation-dependent ncRNA catabolic process GO:0071046
The chemical reactions and pathways occurring in the nucleus and resulting in the breakdown of a noncoding RNA (ncRNA) molecule, initiated by the enzymatic addition of a sequence of adenylyl residues (polyadenylation) at the 3' end the target ncRNA.
1 O74957 (/IMP)
RNA-directed DNA methylation GO:0080188
An epigenetic RNA-based gene silencing process first elucidated in plants whereby 24-nt small interfering RNAs (siRNAs) guide DNA methyltransferases to the siRNA-generating genomic loci and other loci that are homologous to the siRNAs for de novo DNA methylation. In general this process consists of three phases: biogenesis of siRNAs, scaffold RNA production, and the formation of the guiding complex that recruits de novo DNA methyltransferases to the target loci.
1 Q9ZVD5 (/IMP)
RNA phosphodiester bond hydrolysis, endonucleolytic GO:0090502
The chemical reactions and pathways involving the hydrolysis of internal 3',5'-phosphodiester bonds in one or two strands of ribonucleotides.
1 O74957 (/IDA)
Regulation of RNA interference GO:1900368
Any process that modulates the frequency, rate or extent of RNA interference.
1 Q21691 (/IMP)
Megasporocyte differentiation GO:1904159
The process in which a relatively unspecialized cell acquires the specialized features of a megasporocyte.
1 Q84VQ0 (/IMP)

There are 15 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
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 O48771 (/IDA) Q09249 (/IDA) Q21691 (/IDA) Q84VQ0 (/IDA) Q9SHF3 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 Q84VQ0 (/IDA) Q9C793 (/IDA)
RNAi effector complex GO:0031332
Any protein complex that mediates the effects of small interfering RNAs on gene expression. Most known examples contain one or more members of the Argonaute family of proteins.
2 Q09249 (/IDA) Q21691 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q9ZVD5 (/IDA)
Nuclear euchromatin GO:0005719
The dispersed less dense form of chromatin in the interphase nucleus. It exists in at least two forms, a some being in the form of transcriptionally active chromatin which is the least condensed, while the rest is inactive euchromatin which is more condensed than active chromatin but less condensed than heterochromatin.
1 Q9ZVD5 (/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.
1 Q9ZVD5 (/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.
1 O74957 (/HDA)
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 Q9SHF3 (/IDA)
Cajal body GO:0015030
A class of nuclear body, first seen after silver staining by Ramon y Cajal in 1903, enriched in small nuclear ribonucleoproteins, and certain general RNA polymerase II transcription factors; ultrastructurally, they appear as a tangle of coiled, electron-dense threads roughly 0.5 micrometers in diameter; involved in aspects of snRNP biogenesis; the protein coilin serves as a marker for Cajal bodies. Some argue that Cajal bodies are the sites for preassembly of transcriptosomes, unitary particles involved in transcription and processing of RNA.
1 Q9ZVD5 (/IDA)
RITS complex GO:0030958
A protein complex required for heterochromatin assembly; contains an Argonaute homolog, a chromodomain protein, and at least one additional protein; named for RNA-induced initiation of transcriptional gene silencing.
1 O74957 (/IDA)
Nuclear pericentric heterochromatin GO:0031618
Nuclear heterochromatin that is located adjacent to the CENP-A rich centromere 'central core' and characterized by the modified histone H3K9me3.
1 O74957 (/IDA)
Mating-type region heterochromatin GO:0031934
Heterochromatic regions of the chromosome found at silenced mating-type loci.
1 O74957 (/IDA)
ARC complex GO:0033167
A ribonucleoprotein complex that contains members of the Argonaute family of proteins, additional protein subunits, and duplex siRNA; required for heterochromatin assembly and siRNA generation. Possibly involved in the conversion of ds siRNA to ss siRNA.
1 O74957 (/IDA)
P granule GO:0043186
A small cytoplasmic, non-membranous RNA/protein complex aggregates in the primordial germ cells of many higher eukaryotes.
1 Q21770 (/IDA)
Nuclear subtelomeric heterochromatin GO:1990707
Heterochromatic regions of the chromosome found at the subtelomeric regions of a chromosome in the nucleus.
1 O74957 (/IDA)