Annotations: 6PCM

Crystal Structure of Mycobacterium smegmatis Topoisomerase I with ssDNA bound to both N- and C-terminal domains

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)
A	Cation_ATPase_C,Cation_ATPase_N	e6pcmA1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Class I glutamine amidotransferase-like	F: Cation_ATPase_C,Cation_ATPase_N	ECOD (v295.2)
B	Ribosomal_L41	e6pcmB1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Ribosomal_L41	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.140	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (utative)
A	1.10.290.10	Mainly Alpha	Orthogonal Bundle	Topoisomerase I	domain 4	CATH (utative)
B	3.40.50.140	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (utative)
B	1.10.290.10	Mainly Alpha	Orthogonal Bundle	Topoisomerase I	domain 4	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01131	DNA topoisomerase (Topoisom_bac)	DNA topoisomerase	-	Family
A, B	PF01751	Toprim domain (Toprim)	Toprim domain	-	Family
A, B	PF13368	Topoisomerase C-terminal repeat (Toprim_C_rpt)	Topoisomerase C-terminal repeat	This domain is repeated up to five times to form the C-terminal region of bacterial topoisomerase immediately downstream of the zinc-finger motif.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	DNA (5'-D(PAPGPTPGPAPGPCPGPAPGPCPTPTPCPCPGPCPTPTPGPAPCPTPT)-3')	-	-	-
A, B	DNA topoisomerase 1	DNA binding binding nucleic acid binding nucleic acid conformation isomerase activity isomerase activity DNA topoisomerase type I (single strand cut, ATP-independent) activity catalytic activity, acting on DNA DNA topoisomerase activity catalytic activity, acting on a nucleic acid catalytic activity macromolecular conformation isomerase activity	chromosome organization primary metabolic process DNA conformation change DNA metabolic process nucleic acid metabolic process cellular component organization nucleobase-containing compound metabolic process DNA topological change organelle organization cellular process metabolic process cellular component organization or biogenesis macromolecule metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR013497	DNA topoisomerase, type IA, central	Domain
A, B	IPR003602	DNA topoisomerase, type IA, DNA-binding domain	Domain
A, B	IPR023405	DNA topoisomerase, type IA, core domain	Homologous Superfamily
A, B	IPR013825	DNA topoisomerase, type IA, central region, subdomain 2	Homologous Superfamily
A, B	IPR003601	DNA topoisomerase, type IA, domain 2	Domain
A, B	IPR025589	Topoisomerase C-terminal repeat	Repeat
A, B	IPR028612	DNA topoisomerase I, type IA	Family
A, B	IPR000380	DNA topoisomerase, type IA	Family
A, B	IPR013826	DNA topoisomerase, type IA, central region, subdomain 3	Homologous Superfamily
A, B	IPR006171	TOPRIM domain	Domain
A, B	IPR023406	DNA topoisomerase, type IA, active site	Active Site
A, B	IPR005733	DNA topoisomerase I, bacterial-type	Family
A, B	IPR034149	DNA topoisomerase 1, TOPRIM domain	Domain
A, B	IPR013824	DNA topoisomerase, type IA, central region, subdomain 1	Homologous Superfamily