3IRB

Crystal structure of protein with unknown function from DUF35 family (13815350) from SULFOLOBUS SOLFATARICUS at 1.80 A resolution

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	d3irba_	All beta proteins	OB-fold	Nucleic acid-binding proteins	SSO2064-like	Hypothetical protein SSO2064	Archaea (Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
B	d3irbb_	All beta proteins	OB-fold	Nucleic acid-binding proteins	SSO2064-like	Hypothetical protein SSO2064	Archaea (Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	PhlB-like	8021703	4001746	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Nucleic acid-binding proteins	8034083	3000135	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Nop10-like SnoRNP Znf-like	8047299	3000486	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Nop10-like SnoRNP Znf-like	8047299	3000486	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Nucleic acid-binding proteins	8034083	3000135	SCOP2B (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	PF01796	e3irbA1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF01796	ECOD (1.6)
A	PF12172	e3irbA2	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: PF12172	ECOD (1.6)
B	PF01796	e3irbB1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF01796	ECOD (1.6)
B	PF12172	e3irbB2	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: PF12172	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	6.10.30.10	Special	Helix non-globular	Lyase 2-enoyl-coa Hydratase	Chain A, domain 2	CATH (4.3.0)
A	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
B	6.10.30.10	Special	Helix non-globular	Lyase 2-enoyl-coa Hydratase	Chain A, domain 2	CATH (4.3.0)
B	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF12172	Rubredoxin-like zinc ribbon domain (DUF35_N) (DUF35_N)	Rubredoxin-like zinc ribbon domain (DUF35_N)	This domain has no known function and is found in conserved hypothetical archaeal and bacterial proteins. The domain is duplicated in Swiss:O53566. The structure of a DUF35 representative reveals two long N-terminal helices followed by a rubredoxin ...	This domain has no known function and is found in conserved hypothetical archaeal and bacterial proteins. The domain is duplicated in Swiss:O53566. The structure of a DUF35 representative reveals two long N-terminal helices followed by a rubredoxin-like zinc ribbon domain represented in this family and a C-terminal OB fold domain. Zinc is chelated by the four conserved cysteines in the alignment.	Domain
A, B	PF01796	DUF35 OB-fold domain, acyl-CoA-associated (OB_aCoA_assoc)	DUF35 OB-fold domain, acyl-CoA-associated	The structure of a DUF35 representative reveals two long N-terminal helices followed by a rubredoxin-like zinc ribbon domain and a C-terminal OB fold domain represented in this entry. OB-folds are frequently found to bind nucleic acids suggesting thi ...	The structure of a DUF35 representative reveals two long N-terminal helices followed by a rubredoxin-like zinc ribbon domain and a C-terminal OB fold domain represented in this entry. OB-folds are frequently found to bind nucleic acids suggesting this domain might bind to DNA or RNA (Topsan http://www.topsan.org/). Genomic context shows it to be adjacent to acyl-CoA transferase (http:/www.microbesonline.org/).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	uncharacterized protein from DUF35 family	cation binding ion binding binding metal ion binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002878	Domain of unknown function DUF35, OB-fold, C-terminal	Domain
A, B	IPR022002	Domain of unknown function DUF35, rubredoxin-like zinc ribbon domain, N-terminal	Domain
A, B	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.