Annotations: 8CE8

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
I [auth E]	SCOP2B Superfamily	Heme chaperone CcmE	8041665	3001545	SCOP2B (2021-05-27)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00005	e8ce8A1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00005	ECOD (1.6)
E [auth a]	PF00005	e8ce8a1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00005	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, E [auth a]	PF00005	ABC transporter (ABC_tran)	ABC transporter	ABC transporters for a large family of proteins responsible for translocation of a variety of compounds across biological membranes. ABC transporters are the largest family of proteins in many completely sequenced bacteria. ABC transporters are comp ...	ABC transporters for a large family of proteins responsible for translocation of a variety of compounds across biological membranes. ABC transporters are the largest family of proteins in many completely sequenced bacteria. ABC transporters are composed of two copies of this domain and two copies of a transmembrane domain Pfam:PF00664. These four domains may belong to a single polypeptide as in Swiss:P13569, or belong in different polypeptide chains.	Domain
B, F [auth b]	PF03379	CcmB protein (CcmB)	CcmB protein	-	Family
C, G [auth c]	PF01578	Cytochrome C assembly protein (Cytochrom_C_asm)	Cytochrome C assembly protein	-	Family
D, H [auth d]	PF04995	Heme exporter protein D (CcmD) (CcmD)	Heme exporter protein D (CcmD)	-	Family
I [auth E]	PF03100	CcmE (CcmE)	CcmE	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, E [auth a]	Cytochrome c biogenesis ATP-binding export protein CcmA	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity ABC-type transporter activity active transmembrane transporter activity heme transmembrane transporter activity ABC-type heme transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity transporter activity transmembrane transporter activity	import into cell cellular localization inorganic ion homeostasis nitrogen compound transport iron import into cell homeostatic process transport monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport heme import into cell localization intracellular iron ion homeostasis intracellular monoatomic cation homeostasis establishment of localization in cell import into cell cellular localization inorganic ion homeostasis nitrogen compound transport iron import into cell homeostatic process transport monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport heme import into cell localization intracellular iron ion homeostasis intracellular monoatomic cation homeostasis establishment of localization in cell monoatomic ion homeostasis intracellular chemical homeostasis monoatomic ion transport monoatomic cation homeostasis monoatomic cation transport iron ion import across plasma membrane intracellular monoatomic ion homeostasis heme transmembrane transport import across plasma membrane iron ion transport iron ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation import across plasma membrane inorganic cation transmembrane transport transmembrane transport cellular homeostasis chemical homeostasis heme import across plasma membrane inorganic ion import across plasma membrane transition metal ion transport heme transport cellular process iron coordination entity transport organonitrogen compound metabolic process cytochrome biosynthetic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process cytochrome c metabolic process macromolecule biosynthetic process biosynthetic process cytochrome metabolic process metabolic process macromolecule metabolic process protein metabolic process cytochrome c biosynthetic process cytochrome complex assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis	ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex cellular anatomical entity transporter complex ATP-binding cassette (ABC) transporter complex cell periphery transmembrane transporter complex
B, F [auth b]	Heme exporter protein B	heme transmembrane transporter activity transporter activity transmembrane transporter activity	import into cell cellular localization inorganic ion homeostasis nitrogen compound transport iron import into cell homeostatic process transport monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport heme import into cell localization intracellular iron ion homeostasis intracellular monoatomic cation homeostasis establishment of localization in cell import into cell cellular localization inorganic ion homeostasis nitrogen compound transport iron import into cell homeostatic process transport monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport heme import into cell localization intracellular iron ion homeostasis intracellular monoatomic cation homeostasis establishment of localization in cell monoatomic ion homeostasis intracellular chemical homeostasis monoatomic ion transport monoatomic cation homeostasis monoatomic cation transport iron ion import across plasma membrane intracellular monoatomic ion homeostasis heme transmembrane transport import across plasma membrane iron ion transport iron ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation import across plasma membrane inorganic cation transmembrane transport transmembrane transport cellular homeostasis chemical homeostasis heme import across plasma membrane inorganic ion import across plasma membrane transition metal ion transport heme transport cellular process iron coordination entity transport organonitrogen compound metabolic process cytochrome biosynthetic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process cytochrome c metabolic process macromolecule biosynthetic process biosynthetic process cytochrome metabolic process metabolic process macromolecule metabolic process protein metabolic process cytochrome c biosynthetic process cytochrome complex assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis	ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex cellular anatomical entity transporter complex ATP-binding cassette (ABC) transporter complex cell periphery transmembrane transporter complex
C, G [auth c]	Heme exporter protein C	heme transmembrane transporter activity transporter activity transmembrane transporter activity binding organic cyclic compound binding tetrapyrrole binding heme binding	import into cell cellular localization inorganic ion homeostasis nitrogen compound transport iron import into cell homeostatic process transport monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport heme import into cell localization intracellular iron ion homeostasis intracellular monoatomic cation homeostasis establishment of localization in cell import into cell cellular localization inorganic ion homeostasis nitrogen compound transport iron import into cell homeostatic process transport monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport heme import into cell localization intracellular iron ion homeostasis intracellular monoatomic cation homeostasis establishment of localization in cell monoatomic ion homeostasis intracellular chemical homeostasis monoatomic ion transport monoatomic cation homeostasis monoatomic cation transport iron ion import across plasma membrane intracellular monoatomic ion homeostasis heme transmembrane transport import across plasma membrane iron ion transport iron ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation import across plasma membrane inorganic cation transmembrane transport transmembrane transport cellular homeostasis chemical homeostasis heme import across plasma membrane inorganic ion import across plasma membrane transition metal ion transport heme transport cellular process iron coordination entity transport organonitrogen compound metabolic process cytochrome biosynthetic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process cytochrome c metabolic process macromolecule biosynthetic process biosynthetic process cytochrome metabolic process metabolic process macromolecule metabolic process protein metabolic process cytochrome c biosynthetic process cytochrome complex assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis	ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex cellular anatomical entity transporter complex ATP-binding cassette (ABC) transporter complex cell periphery transmembrane transporter complex
D, H [auth d]	Heme exporter protein D	-	import into cell cellular localization inorganic ion homeostasis nitrogen compound transport iron import into cell homeostatic process transport monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport heme import into cell localization intracellular iron ion homeostasis intracellular monoatomic cation homeostasis establishment of localization in cell import into cell cellular localization inorganic ion homeostasis nitrogen compound transport iron import into cell homeostatic process transport monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport heme import into cell localization intracellular iron ion homeostasis intracellular monoatomic cation homeostasis establishment of localization in cell monoatomic ion homeostasis intracellular chemical homeostasis monoatomic ion transport monoatomic cation homeostasis monoatomic cation transport iron ion import across plasma membrane intracellular monoatomic ion homeostasis heme transmembrane transport import across plasma membrane iron ion transport iron ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation import across plasma membrane inorganic cation transmembrane transport transmembrane transport cellular homeostasis chemical homeostasis heme import across plasma membrane inorganic ion import across plasma membrane transition metal ion transport heme transport cellular process iron coordination entity transport organonitrogen compound metabolic process cytochrome biosynthetic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process cytochrome c metabolic process macromolecule biosynthetic process biosynthetic process cytochrome metabolic process metabolic process macromolecule metabolic process protein metabolic process cytochrome c biosynthetic process cytochrome complex assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis	ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex cellular anatomical entity transporter complex ATP-binding cassette (ABC) transporter complex cell periphery transmembrane transporter complex
I [auth E]	Cytochrome c-type biogenesis protein CcmE	binding organic cyclic compound binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding small molecule binding	import into cell cellular localization inorganic ion homeostasis nitrogen compound transport iron import into cell homeostatic process transport monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport heme import into cell localization intracellular iron ion homeostasis intracellular monoatomic cation homeostasis establishment of localization in cell import into cell cellular localization inorganic ion homeostasis nitrogen compound transport iron import into cell homeostatic process transport monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport heme import into cell localization intracellular iron ion homeostasis intracellular monoatomic cation homeostasis establishment of localization in cell monoatomic ion homeostasis intracellular chemical homeostasis monoatomic ion transport monoatomic cation homeostasis monoatomic cation transport iron ion import across plasma membrane intracellular monoatomic ion homeostasis heme transmembrane transport import across plasma membrane iron ion transport iron ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation import across plasma membrane inorganic cation transmembrane transport transmembrane transport cellular homeostasis chemical homeostasis heme import across plasma membrane inorganic ion import across plasma membrane transition metal ion transport heme transport cellular process iron coordination entity transport organonitrogen compound metabolic process cytochrome biosynthetic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process cytochrome c metabolic process macromolecule biosynthetic process biosynthetic process cytochrome metabolic process metabolic process macromolecule metabolic process protein metabolic process cytochrome c biosynthetic process cytochrome complex assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis	ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex cellular anatomical entity transporter complex ATP-binding cassette (ABC) transporter complex cell periphery transmembrane transporter complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, E [auth a]	IPR003593	AAA+ ATPase domain	Domain
A, E [auth a]	IPR017871	ABC transporter-like, conserved site	Conserved Site
A, E [auth a]	IPR005895	ABC transporter, haem export, CcmA	Family
A, E [auth a]	IPR003439	ABC transporter-like, ATP-binding domain	Domain
A, E [auth a]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B, F [auth b]	IPR003544	Cytochrome c-type biogenesis protein CcmB	Family
B, F [auth b]	IPR026031	Cytochrome c-type biogenesis protein CcmB, bacteria	Family
C, G [auth c]	IPR003557	Cytochrome c-type biogenesis protein CcmC	Family
C, G [auth c]	IPR045062	Cytochrome c-type biogenesis protein CcsA/CcmC	Family
C, G [auth c]	IPR002541	Cytochrome c assembly protein	Domain
D, H [auth d]	IPR007078	Haem exporter protein D (CcmD)	Family
I [auth E]	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
I [auth E]	IPR036127	CcmE-like superfamily	Homologous Superfamily
I [auth E]	IPR004329	CcmE/CycJ protein	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E [auth a] A, B, C, D, E [auth a], F [auth b], G [auth c], H [auth d], I [auth E]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C, D, E [auth a] A, B, C, D, E [auth a], F [auth b], G [auth c], H [auth d], I [auth E]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D, E [auth a] A, B, C, D, E [auth a], F [auth b], G [auth c], H [auth d], I [auth E]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Heme-Handling Proteins	Cytochrome c maturation (Ccm) protein system. CcmABCD complex, apo state

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 R01GM133198.