1U9M | pdb_00001u9m

Crystal structure of F58W mutant of cytochrome b5

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	d1u9ma_	Alpha and beta proteins (a+b)	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
B	d1u9mb_	Alpha and beta proteins (a+b)	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
C	d1u9mc_	Alpha and beta proteins (a+b)	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
D	d1u9md_	Alpha and beta proteins (a+b)	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
E	d1u9me_	Alpha and beta proteins (a+b)	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
F	d1u9mf_	Alpha and beta proteins (a+b)	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5-like heme/steroid binding domain	Cytochrome b5	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cytochrome b5-like heme/steroid binding domain	8036164	3000073	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Cytochrome b5-like heme/steroid binding domain	8036164	3000073	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Cytochrome b5-like heme/steroid binding domain	8036164	3000073	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Cytochrome b5-like heme/steroid binding domain	8036164	3000073	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Cytochrome b5-like heme/steroid binding domain	8036164	3000073	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Cytochrome b5-like heme/steroid binding domain	8036164	3000073	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	Cyt-b5	e1u9mA1	A: a+b two layers	X: Cystatin-like	H: Cytochrome b5-like heme/steroid binding domain (From Topology)	T: Cytochrome b5-like heme/steroid binding domain	F: Cyt-b5	ECOD (1.6)
B	Cyt-b5	e1u9mB1	A: a+b two layers	X: Cystatin-like	H: Cytochrome b5-like heme/steroid binding domain (From Topology)	T: Cytochrome b5-like heme/steroid binding domain	F: Cyt-b5	ECOD (1.6)
C	Cyt-b5	e1u9mC1	A: a+b two layers	X: Cystatin-like	H: Cytochrome b5-like heme/steroid binding domain (From Topology)	T: Cytochrome b5-like heme/steroid binding domain	F: Cyt-b5	ECOD (1.6)
D	Cyt-b5	e1u9mD1	A: a+b two layers	X: Cystatin-like	H: Cytochrome b5-like heme/steroid binding domain (From Topology)	T: Cytochrome b5-like heme/steroid binding domain	F: Cyt-b5	ECOD (1.6)
E	Cyt-b5	e1u9mE1	A: a+b two layers	X: Cystatin-like	H: Cytochrome b5-like heme/steroid binding domain (From Topology)	T: Cytochrome b5-like heme/steroid binding domain	F: Cyt-b5	ECOD (1.6)
F	Cyt-b5	e1u9mF1	A: a+b two layers	X: Cystatin-like	H: Cytochrome b5-like heme/steroid binding domain (From Topology)	T: Cytochrome b5-like heme/steroid binding domain	F: Cyt-b5	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.120.10	Alpha Beta	Roll	Flavocytochrome B2	Chain A, domain 1	CATH (4.3.0)
B	3.10.120.10	Alpha Beta	Roll	Flavocytochrome B2	Chain A, domain 1	CATH (4.3.0)
C	3.10.120.10	Alpha Beta	Roll	Flavocytochrome B2	Chain A, domain 1	CATH (4.3.0)
D	3.10.120.10	Alpha Beta	Roll	Flavocytochrome B2	Chain A, domain 1	CATH (4.3.0)
E	3.10.120.10	Alpha Beta	Roll	Flavocytochrome B2	Chain A, domain 1	CATH (4.3.0)
F	3.10.120.10	Alpha Beta	Roll	Flavocytochrome B2	Chain A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF00173	Cytochrome b5-like Heme/Steroid binding domain (Cyt-b5)	Cytochrome b5-like Heme/Steroid binding domain	This family includes heme binding domains from a diverse range of proteins. This family also includes proteins that bind to steroids. The family includes progesterone receptors such as Swiss:O00264 [1,2]. Many members of this subfamily are membrane a ...	This family includes heme binding domains from a diverse range of proteins. This family also includes proteins that bind to steroids. The family includes progesterone receptors such as Swiss:O00264 [1,2]. Many members of this subfamily are membrane anchored by an N-terminal transmembrane alpha helix. This family also includes a domain in some chitin synthases. There is no known ligand for this domain in the chitin synthases.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	Cytochrome b5	binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding small molecule binding	-	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure organelle intracellular membrane-bounded organelle organelle subcompartment membrane endomembrane system endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cytoplasm organelle membrane membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure organelle intracellular membrane-bounded organelle organelle subcompartment membrane endomembrane system endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cytoplasm organelle membrane endoplasmic reticulum membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR036400	Cytochrome b5-like heme/steroid binding domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR018506	Cytochrome b5, heme-binding site	Binding Site
A, B, C, D, E A, B, C, D, E, F	IPR001199	Cytochrome b5-like heme/steroid binding domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR050668	Cytochrome b5	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.