Annotations: 4PA1

Crystal Structure of Catalytic Core domain of FIV Integrase

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4pa1a1	Alpha and beta proteins (a/b)	Ribonuclease H-like motif	Ribonuclease H-like	automated matches	automated matches	FIV (Feline immunodeficiency virus (isolate Petaluma) ) [TaxId: 11674 ],	SCOPe (2.08)
A	d4pa1a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	FIV (Feline immunodeficiency virus (isolate Petaluma) ) [TaxId: 11674 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Retroviral integrase, catalytic domain	8077047	4000539	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Ribonuclease H-like	8077048	3000143	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	V-set	e4pa1A1	A: alpha arrays	X: DP domain	H: DP domain	T: DP domain	F: V-set	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.420.10	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00665	Integrase core domain (rve)	Integrase core domain	Integrase mediates integration of a DNA copy of the viral genome into the host chromosome. Integrase is composed of three domains. The amino-terminal domain is a zinc binding domain Pfam:PF02022. This domain is the central catalytic domain. The ca ...	Integrase mediates integration of a DNA copy of the viral genome into the host chromosome. Integrase is composed of three domains. The amino-terminal domain is a zinc binding domain Pfam:PF02022. This domain is the central catalytic domain. The carboxyl terminal domain that is a non-specific DNA binding domain Pfam:PF00552. The catalytic domain acts as an endonuclease when two nucleotides are removed from the 3' ends of the blunt-ended viral DNA made by reverse transcription. This domain also catalyses the DNA strand transfer reaction of the 3' ends of the viral DNA to the 5' ends of the integration site [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Integrase	catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid RNA exonuclease activity RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds nuclease activity exoribonuclease H activity exonuclease activity catalytic activity cation binding magnesium ion binding ion binding catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid RNA exonuclease activity RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds nuclease activity exoribonuclease H activity exonuclease activity catalytic activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding DNA binding nucleic acid binding aspartic-type peptidase activity peptidase activity catalytic activity, acting on a protein aspartic-type endopeptidase activity endopeptidase activity endonuclease activity RNA endonuclease activity producing 5'-phosphomonoesters, hydrolytic mechanism RNA-DNA hybrid ribonuclease activity RNA endonuclease activity RNA-directed DNA polymerase activity catalytic activity, acting on DNA DNA polymerase activity transferase activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups pyrophosphatase activity nucleoside triphosphate diphosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides dUTP diphosphatase activity hydrolase activity, acting on acid anhydrides transition metal ion binding zinc ion binding	biological process involved in interspecies interaction between organisms symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction establishment of integrated proviral latency viral latency establishment of viral latency pyrimidine deoxyribonucleotide catabolic process catabolic process pyrimidine deoxyribonucleotide metabolic process pyrimidine-containing compound catabolic process biological process involved in interspecies interaction between organisms symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction establishment of integrated proviral latency viral latency establishment of viral latency pyrimidine deoxyribonucleotide catabolic process catabolic process pyrimidine deoxyribonucleotide metabolic process pyrimidine-containing compound catabolic process dUTP metabolic process carbohydrate derivative metabolic process organophosphate catabolic process pyrimidine nucleoside triphosphate catabolic process nucleoside phosphate catabolic process deoxyribose phosphate catabolic process pyrimidine nucleotide metabolic process nucleobase-containing compound metabolic process pyrimidine nucleotide catabolic process nucleobase-containing small molecule metabolic process pyrimidine deoxyribonucleoside triphosphate metabolic process small molecule metabolic process dUTP catabolic process phosphorus metabolic process nucleotide catabolic process deoxyribonucleoside triphosphate metabolic process pyrimidine deoxyribonucleoside triphosphate catabolic process nucleoside phosphate metabolic process carbohydrate derivative catabolic process pyrimidine-containing compound metabolic process pyrimidine nucleoside triphosphate metabolic process 2'-deoxyribonucleotide metabolic process primary metabolic process deoxyribonucleoside triphosphate catabolic process nucleotide metabolic process nucleobase-containing compound catabolic process organophosphate metabolic process metabolic process cellular process viral genome integration into host DNA DNA recombination DNA metabolic process macromolecule metabolic process nucleic acid metabolic process deoxyribose phosphate biosynthetic process nucleotide biosynthetic process pyrimidine deoxyribonucleoside monophosphate metabolic process pyrimidine deoxyribonucleotide biosynthetic process deoxyribonucleoside monophosphate biosynthetic process pyrimidine deoxyribonucleoside monophosphate biosynthetic process pyrimidine-containing compound biosynthetic process nucleoside monophosphate metabolic process carbohydrate derivative biosynthetic process pyrimidine nucleoside monophosphate metabolic process 2'-deoxyribonucleotide biosynthetic process nucleobase-containing compound biosynthetic process dUMP biosynthetic process nucleoside monophosphate biosynthetic process dUMP metabolic process biosynthetic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process pyrimidine nucleoside monophosphate biosynthetic process pyrimidine nucleotide biosynthetic process DNA integration proteolysis protein metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A	IPR036157	dUTPase-like superfamily	Homologous Superfamily
A	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
A	IPR001995	Peptidase A2A, retrovirus, catalytic	Domain
A	IPR021109	Aspartic peptidase domain superfamily	Homologous Superfamily
A	IPR001969	Aspartic peptidase, active site	Active Site
A	IPR029054	dUTPase-like	Domain
A	IPR036862	Integrase, C-terminal domain superfamily, retroviral	Homologous Superfamily
A	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily
A	IPR018061	Retropepsins	Domain
A	IPR017856	Integrase-like, N-terminal	Homologous Superfamily
A	IPR010661	Reverse transcriptase thumb	Domain
A	IPR002156	Ribonuclease H domain	Domain
A	IPR003308	Integrase, N-terminal zinc-binding domain	Domain
A	IPR001584	Integrase, catalytic core	Domain
A	IPR008181	Deoxyuridine triphosphate nucleotidohydrolase	Family
A	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A	IPR033704	dUTPase, trimeric	Domain
A	IPR001037	Integrase, C-terminal, retroviral	Domain
A	IPR034170	Retropepsin-like catalytic domain	Domain
A	IPR000477	Reverse transcriptase domain	Domain
A	IPR010659	Reverse transcriptase connection	Domain