Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyPAZ domain8100249 4000853 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyPAZ domain8100250 3001750 SCOP2 (2022-06-29)
BSCOP2B SuperfamilyPAZ domain8100250 3001750 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyPAZ domain8100250 3001750 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyPAZ domain8100250 3001750 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APF02170e3o7xA1 A: beta barrelsX: SH3H: SH3T: SH3F: PF02170ECOD (1.6)
BPF02170e3o7xB1 A: beta barrelsX: SH3H: SH3T: SH3F: PF02170ECOD (1.6)
CPF02170e3o7xC1 A: beta barrelsX: SH3H: SH3T: SH3F: PF02170ECOD (1.6)
DPF02170e3o7xD1 A: beta barrelsX: SH3H: SH3T: SH3F: PF02170ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.170.260.10 Mainly Beta Beta Complex paz domain paz domainCATH (4.3.0)
B2.170.260.10 Mainly Beta Beta Complex paz domain paz domainCATH (4.3.0)
C2.170.260.10 Mainly Beta Beta Complex paz domain paz domainCATH (4.3.0)
D2.170.260.10 Mainly Beta Beta Complex paz domain paz domainCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C, D
PF02170PAZ domain (PAZ)PAZ domainThis domain is named PAZ after the proteins Piwi Argonaut and Zwille. This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel ...This domain is named PAZ after the proteins Piwi Argonaut and Zwille. This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerisation. The three-dimensional structure of this domain has been solved [2-4]. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteristic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.
Domain
A, B, C, D
PF08699Argonaute linker 1 domain (ArgoL1)Argonaute linker 1 domainArgoL1 is a region found in argonaute [1] proteins. It normally co-occurs with Pfam:PF02179 and Pfam:PF02171. It is a linker region between the N-terminal and the PAZ domains. It contains an alpha-helix packed against a three-stranded antiparallel be ...ArgoL1 is a region found in argonaute [1] proteins. It normally co-occurs with Pfam:PF02179 and Pfam:PF02171. It is a linker region between the N-terminal and the PAZ domains. It contains an alpha-helix packed against a three-stranded antiparallel beta-sheet with two long beta-strands (beta8 and beta9) of the sheet spanning one face of the adjacent N and PAZ domains. L1 together with linker 2, L2, PAZ and ArgoN forms a compact global fold [2].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, C, D
Piwi-like protein 2

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B, C, D
IPR036397Ribonuclease H superfamilyHomologous Superfamily
A, B, C, D
IPR014811Argonaute, linker 1 domainDomain
A, B, C, D
IPR012337Ribonuclease H-like superfamilyHomologous Superfamily
A, B, C, D
IPR003100PAZ domainDomain
A, B, C, D
IPR036085PAZ domain superfamilyHomologous Superfamily
A, B, C, D
IPR003165Piwi domainDomain