Annotations: 1SR3

Solution structure of the heme chaperone CcmE of Escherichia coli

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
Membrane Protein Annotation: OPM

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1sr3a_	All beta proteins	OB-fold	Heme chaperone CcmE	Heme chaperone CcmE	Heme chaperone CcmE	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Heme chaperone CcmE	8029286	4002648	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	CcmE-like	8041665	3001545	SCOP2 (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	Stap_Strp_toxin	e1sr3A1	A: beta barrels	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Stap_Strp_toxin	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	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	PF03100	CcmE domain (CcmE)	CcmE domain	CcmE is the product of one of a cluster of Ccm genes that are necessary for cytochrome c biosynthesis in eubacteria. Expression of these proteins is induced when the organisms are grown under anaerobic conditions with nitrate or nitrite as the final ...	CcmE is the product of one of a cluster of Ccm genes that are necessary for cytochrome c biosynthesis in eubacteria. Expression of these proteins is induced when the organisms are grown under anaerobic conditions with nitrate or nitrite as the final electron acceptor.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	APO-CCME	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 establishment of localization inorganic cation import across plasma membrane 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 cytochrome 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 protein-tetrapyrrole linkage gene expression protein maturation protein-heme linkage	ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex transporter complex ATP-binding cassette (ABC) transporter complex cell periphery cellular anatomical structure transmembrane transporter complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A	IPR036127	CcmE-like superfamily	Homologous Superfamily
A	IPR004329	CcmE/CycJ protein	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Transmembrane	Bitopic proteins	Cytochrome c-type biogenesis protein	Cytochrome c-type biogenesis protein

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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.