5AWH | pdb_00005awh

Rhodobacter sphaeroides Argonaute in complex with guide RNA/target DNA heteroduplex

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	EUF07584	e5awhB1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: EUF07584	ECOD (1.6)
B	EUF08369	e5awhB3	A: a+b two layers	X: Alpha-beta plaits	H: Argonaute, N-terminal domain (From Topology)	T: Argonaute, N-terminal domain	F: EUF08369	ECOD (1.6)
B	EUF08370	e5awhB2	A: a+b two layers	X: Alpha-beta plaits	H: Argonaute, N-terminal domain (From Topology)	T: Argonaute, N-terminal domain	F: EUF08370	ECOD (1.6)
B	Piwi_N	e5awhB5	A: a/b three-layered sandwiches	X: Middle domain in Argonaute homologs (From Topology)	H: Middle domain in Argonaute homologs (From Topology)	T: Middle domain in Argonaute homologs	F: Piwi_N	ECOD (1.6)
B	Piwi_C_1	e5awhB4	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Piwi_C_1	ECOD (1.6)
A	EUF07584	e5awhA3	A: beta barrels	X: SH3	H: SH3	T: SH3	F: EUF07584	ECOD (1.6)
A	EUF08369	e5awhA2	A: a+b two layers	X: Alpha-beta plaits	H: Argonaute, N-terminal domain (From Topology)	T: Argonaute, N-terminal domain	F: EUF08369	ECOD (1.6)
A	EUF08370	e5awhA1	A: a+b two layers	X: Alpha-beta plaits	H: Argonaute, N-terminal domain (From Topology)	T: Argonaute, N-terminal domain	F: EUF08370	ECOD (1.6)
A	Piwi_N	e5awhA4	A: a/b three-layered sandwiches	X: Middle domain in Argonaute homologs (From Topology)	H: Middle domain in Argonaute homologs (From Topology)	T: Middle domain in Argonaute homologs	F: Piwi_N	ECOD (1.6)
A	Piwi_C_1	e5awhA5	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Piwi_C_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.420.10	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (utative)
A	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (utative)
A	3.30.420.10	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02171	Piwi domain (Piwi)	Piwi domain	This domain is found in the protein Piwi and its relatives. The function of this domain is the dsRNA guided hydrolysis of ssRNA. Determination of the crystal structure of Argonaute reveals that PIWI is an RNase H domain, and identifies Argonaute as S ...	This domain is found in the protein Piwi and its relatives. The function of this domain is the dsRNA guided hydrolysis of ssRNA. Determination of the crystal structure of Argonaute reveals that PIWI is an RNase H domain, and identifies Argonaute as Slicer, the enzyme that cleaves mRNA in the RNAi RISC complex [2]. In addition, Mg+2 dependence and production of 3'-OH and 5' phosphate products are shared characteristics of RNaseH and RISC. The PIWI domain core has a tertiary structure belonging to the RNase H family of enzymes. RNase H fold proteins all have a five-stranded mixed beta-sheet surrounded by helices. By analogy to RNase H enzymes which cleave single-stranded RNA guided by the DNA strand in an RNA/DNA hybrid, the PIWI domain can be inferred to cleave single-stranded RNA, for example mRNA, guided by double stranded siRNA.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D, F	DNA (5'-D(CPGPAPGPGPTPAPGPTPAPGPGPTPTPGPTPAPA)-3')	-	-	-
C, E	RNA (5'-D(PUPUPAPCPAPAPCPCPUPAPCPUPAPCPCPUPCPG)-3')	-	-	-
A, B	Uncharacterized protein	DNA binding binding nucleic acid binding RNA binding cation binding ion binding metal ion binding small molecule binding	biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response defense response to symbiont response to external stimulus clearance of foreign intracellular DNA clearance of foreign intracellular nucleic acids response to biotic stimulus defense response to other organism response to stress response to external biotic stimulus	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A, B	IPR003165	Piwi domain	Domain
A, B	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.