Annotations: 1FX3

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1fx3a_	Alpha and beta proteins (a+b)	SecB-like	SecB-like	Bacterial protein-export protein SecB	Bacterial protein-export protein SecB	(Haemophilus influenzae ) [TaxId: 727 ],	SCOPe (2.08)
B	d1fx3b_	Alpha and beta proteins (a+b)	SecB-like	SecB-like	Bacterial protein-export protein SecB	Bacterial protein-export protein SecB	(Haemophilus influenzae ) [TaxId: 727 ],	SCOPe (2.08)
C	d1fx3c_	Alpha and beta proteins (a+b)	SecB-like	SecB-like	Bacterial protein-export protein SecB	Bacterial protein-export protein SecB	(Haemophilus influenzae ) [TaxId: 727 ],	SCOPe (2.08)
D	d1fx3d_	Alpha and beta proteins (a+b)	SecB-like	SecB-like	Bacterial protein-export protein SecB	Bacterial protein-export protein SecB	(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)
A	SCOP2B Superfamily	SecB-like	8037977	3000756	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	SecB-like	8037977	3000756	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	SecB-like	8037977	3000756	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	SecB-like	8037977	3000756	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	SecB	e1fx3A1	A: a+b two layers	X: Bacterial protein-export protein SecB (From Topology)	H: Bacterial protein-export protein SecB (From Topology)	T: Bacterial protein-export protein SecB	F: SecB	ECOD (1.6)
B	SecB	e1fx3B1	A: a+b two layers	X: Bacterial protein-export protein SecB (From Topology)	H: Bacterial protein-export protein SecB (From Topology)	T: Bacterial protein-export protein SecB	F: SecB	ECOD (1.6)
C	SecB	e1fx3C1	A: a+b two layers	X: Bacterial protein-export protein SecB (From Topology)	H: Bacterial protein-export protein SecB (From Topology)	T: Bacterial protein-export protein SecB	F: SecB	ECOD (1.6)
D	SecB	e1fx3D1	A: a+b two layers	X: Bacterial protein-export protein SecB (From Topology)	H: Bacterial protein-export protein SecB (From Topology)	T: Bacterial protein-export protein SecB	F: SecB	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.420.10	Alpha Beta	Roll	Bacterial Protein-export protein SecB	SecB-like	CATH (4.3.0)
B	3.10.420.10	Alpha Beta	Roll	Bacterial Protein-export protein SecB	SecB-like	CATH (4.3.0)
C	3.10.420.10	Alpha Beta	Roll	Bacterial Protein-export protein SecB	SecB-like	CATH (4.3.0)
D	3.10.420.10	Alpha Beta	Roll	Bacterial Protein-export protein SecB	SecB-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF02556	Preprotein translocase subunit SecB (SecB)	Preprotein translocase subunit SecB	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	PROTEIN-EXPORT PROTEIN SECB	unfolded protein binding protein binding binding	organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process protein maturation organic substance metabolic process protein folding biosynthetic process organic substance biosynthetic process metabolic process cellular process protein metabolic process organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process protein maturation organic substance metabolic process protein folding biosynthetic process organic substance biosynthetic process metabolic process cellular process protein metabolic process macromolecule metabolic process cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein tetramerization protein-containing complex assembly cellular component organization or biogenesis protein localization establishment of protein localization cellular localization nitrogen compound transport transport organic substance transport establishment of localization localization protein transport cellular macromolecule localization macromolecule localization	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR035958	SecB-like superfamily	Homologous Superfamily
A, B, C, D	IPR003708	Bacterial protein export chaperone SecB	Family

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.