1TWB | pdb_00001twb

SspB disulfide crosslinked to an ssrA degradation tag

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)
B	d1twbb_	All beta proteins	SspB-like	SspB-like	Stringent starvation protein B, SspB	Stringent starvation protein B, SspB	(Haemophilus influenzae ) [TaxId: 727 ],	SCOPe (2.08)
A	d1twba_	All beta proteins	SspB-like	SspB-like	Stringent starvation protein B, SspB	Stringent starvation protein B, SspB	(Haemophilus influenzae ) [TaxId: 727 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	SspB-like	8037791	3001811	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	SspB-like	8037791	3001811	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)
B		e1twbB1	A: Cloacin translocation domain	X: Cloacin translocation domain	H: Cloacin translocation domain	T: dUTPase	F:	ECOD (20:10:01)
A		e1twbA1	A: Cloacin translocation domain	X: Cloacin translocation domain	H: Cloacin translocation domain	T: dUTPase	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.30.30.220	Mainly Beta	Roll	SH3 type barrels.	SspB-like	CATH (4.3.0)
A	2.30.30.220	Mainly Beta	Roll	SH3 type barrels.	SspB-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF04386	Stringent starvation protein B (SspB)	Stringent starvation protein B	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	ssrA peptide	-	-	-
A, B	Stringent starvation protein B homolog	-	regulation of cellular process catabolic process positive regulation of protein metabolic process positive regulation of biological process macromolecule catabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of macromolecule metabolic process protein metabolic process positive regulation of cellular process regulation of biological process regulation of protein metabolic process biological regulation primary metabolic process regulation of cellular process catabolic process positive regulation of protein metabolic process positive regulation of biological process macromolecule catabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of macromolecule metabolic process protein metabolic process positive regulation of cellular process regulation of biological process regulation of protein metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process protein catabolic process regulation of catabolic process positive regulation of protein catabolic process positive regulation of catabolic process metabolic process cellular process macromolecule metabolic process regulation of metabolic process regulation of protein catabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol intracellular organelle organelle membraneless organelle intracellular membraneless organelle ribosome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR007481	Stringent starvation protein B	Family
A, B	IPR036760	SspB-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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.