3OR1 | pdb_00003or1

Crystal structure of dissimilatory sulfite reductase I (DsrI)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
F	d3or1f_	Alpha and beta proteins (a+b)	DsrC, the gamma subunit of dissimilatory sulfite reductase	DsrC, the gamma subunit of dissimilatory sulfite reductase	DsrC, the gamma subunit of dissimilatory sulfite reductase	automated matches	(Megalodesulfovibrio gigas ) [TaxId: 879 ],	SCOPe (2.08)
C	d3or1c_	Alpha and beta proteins (a+b)	DsrC, the gamma subunit of dissimilatory sulfite reductase	DsrC, the gamma subunit of dissimilatory sulfite reductase	DsrC, the gamma subunit of dissimilatory sulfite reductase	automated matches	(Megalodesulfovibrio gigas ) [TaxId: 879 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
F	SCOP2B Superfamily	DsrC, the gamma subunit of dissimilatory sulfite reductase	8081312	3000863	SCOP2B (2022-06-29)
C	SCOP2 Family	DsrC, the gamma subunit of dissimilatory sulfite reductase	8081311	4003436	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	DsrC, the gamma subunit of dissimilatory sulfite reductase	8081312	3000863	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)
F	DsrC	e3or1F1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: DsrC	ECOD (1.6)
C	DsrC	e3or1C1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: DsrC	ECOD (1.6)
E	Fer4_7	e3or1E8	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: Fer4_7	ECOD (1.6)
E	NIR_SIR_ferr	e3or1E1	A: a+b two layers	X: Alpha-beta plaits	H: Sulfite reductase, domains 1 and 3 (From Topology)	T: Sulfite reductase, domains 1 and 3	F: NIR_SIR_ferr	ECOD (1.6)
E	NIR_SIR	e3or1E9	A: a+b three layers	X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 (From Topology)	H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 (From Topology)	T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	F: NIR_SIR	ECOD (1.6)
B	Fer4_7	e3or1B8	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: Fer4_7	ECOD (1.6)
B	NIR_SIR_ferr	e3or1B1	A: a+b two layers	X: Alpha-beta plaits	H: Sulfite reductase, domains 1 and 3 (From Topology)	T: Sulfite reductase, domains 1 and 3	F: NIR_SIR_ferr	ECOD (1.6)
B	NIR_SIR	e3or1B9	A: a+b three layers	X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 (From Topology)	H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 (From Topology)	T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	F: NIR_SIR	ECOD (1.6)
D	dsrA	e3or1D2	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: dsrA	ECOD (1.6)
D	NIR_SIR_ferr	e3or1D1	A: a+b two layers	X: Alpha-beta plaits	H: Sulfite reductase, domains 1 and 3 (From Topology)	T: Sulfite reductase, domains 1 and 3	F: NIR_SIR_ferr	ECOD (1.6)
D	NIR_SIR	e3or1D8	A: a+b three layers	X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 (From Topology)	H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 (From Topology)	T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	F: NIR_SIR	ECOD (1.6)
A	dsrA	e3or1A9	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: dsrA	ECOD (1.6)
A	NIR_SIR_ferr	e3or1A1	A: a+b two layers	X: Alpha-beta plaits	H: Sulfite reductase, domains 1 and 3 (From Topology)	T: Sulfite reductase, domains 1 and 3	F: NIR_SIR_ferr	ECOD (1.6)
A	NIR_SIR	e3or1A8	A: a+b three layers	X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 (From Topology)	H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 (From Topology)	T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	F: NIR_SIR	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F	3.30.1420.10	Alpha Beta	2-Layer Sandwich	Dissimilatory Siroheme-sulfite Reductase	Chain: A	CATH (4.3.0)
F	1.10.10.370	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	DsrC protein, C-terminal domain	CATH (4.3.0)
C	3.30.1420.10	Alpha Beta	2-Layer Sandwich	Dissimilatory Siroheme-sulfite Reductase	Chain: A	CATH (4.3.0)
C	1.10.10.370	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	DsrC protein, C-terminal domain	CATH (4.3.0)
E	3.30.70.3340	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
E	3.30.413.10	Alpha Beta	2-Layer Sandwich	Sulfite Reductase Hemoprotein	domain 1	CATH (4.3.0)
E	3.30.70.20	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
B	3.30.70.3340	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
B	3.30.413.10	Alpha Beta	2-Layer Sandwich	Sulfite Reductase Hemoprotein	domain 1	CATH (4.3.0)
B	3.30.70.20	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
D	6.10.140.1420	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
D	3.30.70.2500	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
D	3.30.413.10	Alpha Beta	2-Layer Sandwich	Sulfite Reductase Hemoprotein	domain 1	CATH (4.3.0)
D	3.30.70.20	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
A	6.10.140.1420	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
A	3.30.70.2500	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
A	3.30.413.10	Alpha Beta	2-Layer Sandwich	Sulfite Reductase Hemoprotein	domain 1	CATH (4.3.0)
A	3.30.70.20	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, F	Sulfite reductase gama	sulfur carrier activity molecular carrier activity	tRNA thio-modification RNA metabolic process tRNA wobble uridine modification nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process tRNA processing tRNA wobble base modification RNA processing tRNA modification primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process tRNA thio-modification RNA metabolic process tRNA wobble uridine modification nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process tRNA processing tRNA wobble base modification RNA processing tRNA modification primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process RNA modification biosynthetic process macromolecule modification metabolic process cellular process macromolecule metabolic process tRNA wobble position uridine thiolation	cellular anatomical structure intracellular anatomical structure cytoplasm
B, E	Sulfite reductase beta	oxidoreductase activity, acting on a sulfur group of donors oxidoreductase activity dissimilatory sulfite reductase (NADH) activity catalytic activity oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor binding tetrapyrrole binding heme binding sulfite reductase activity oxidoreductase activity, acting on a sulfur group of donors, iron-sulfur protein as acceptor sulfite reductase (ferredoxin) activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding oxidoreductase activity, acting on a sulfur group of donors oxidoreductase activity dissimilatory sulfite reductase (NADH) activity catalytic activity oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor binding tetrapyrrole binding heme binding sulfite reductase activity oxidoreductase activity, acting on a sulfur group of donors, iron-sulfur protein as acceptor sulfite reductase (ferredoxin) activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding electron transfer activity cation binding ion binding metal ion binding	sulfate assimilation sulfur compound metabolic process metabolic process cellular process	protein-containing complex catalytic complex sulfite reductase complex (NADPH) intracellular protein-containing complex
A, D	Sulfite reductase alpha	oxidoreductase activity, acting on a sulfur group of donors oxidoreductase activity dissimilatory sulfite reductase (NADH) activity catalytic activity oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor binding tetrapyrrole binding heme binding sulfite reductase activity oxidoreductase activity, acting on a sulfur group of donors, iron-sulfur protein as acceptor sulfite reductase (ferredoxin) activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding oxidoreductase activity, acting on a sulfur group of donors oxidoreductase activity dissimilatory sulfite reductase (NADH) activity catalytic activity oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor binding tetrapyrrole binding heme binding sulfite reductase activity oxidoreductase activity, acting on a sulfur group of donors, iron-sulfur protein as acceptor sulfite reductase (ferredoxin) activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding ion binding metal ion binding	sulfate assimilation sulfur compound metabolic process metabolic process cellular process	protein-containing complex catalytic complex sulfite reductase complex (NADPH) intracellular protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, F	IPR043163	DsrC-like protein, N-terminal domain	Homologous Superfamily
C, F	IPR025526	DsrC-like domain superfamily	Homologous Superfamily
C, F	IPR042072	DsrC-like protein, C-terminal domain	Homologous Superfamily
C, F	IPR007453	Sulphur transfer protein DsrC/TusE	Family
B, E	IPR005117	Nitrite/Sulfite reductase ferredoxin-like domain	Domain
B, E	IPR011808	Sulphite reductase, dissimilatory-type beta subunit	Family
B, E	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
B, E	IPR006067	Nitrite/sulphite reductase 4Fe-4S domain	Domain
B, E	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
B, E	IPR045854	Nitrite and sulphite reductase 4Fe-4S domain-like superfamily	Homologous Superfamily
B, E	IPR036136	Nitrite/Sulfite reductase ferredoxin-like domain superfamily	Homologous Superfamily
B, E	IPR045169	Nitrite and sulphite reductase 4Fe-4S domain containing protein	Family
A, D	IPR006067	Nitrite/sulphite reductase 4Fe-4S domain	Domain
A, D	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
A, D	IPR045854	Nitrite and sulphite reductase 4Fe-4S domain-like superfamily	Homologous Superfamily
A, D	IPR036136	Nitrite/Sulfite reductase ferredoxin-like domain superfamily	Homologous Superfamily
A, D	IPR045169	Nitrite and sulphite reductase 4Fe-4S domain containing protein	Family
A, D	IPR011806	Sulphite reductase, dissimilatory-type alpha subunit	Family

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.