O21280 · CCMA_RECAM
- ProteinCytochrome c biogenesis ATP-binding export protein CcmA
- GeneCCMA
- StatusUniProtKB reviewed (Swiss-Prot)
- Organism
- Amino acids222 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Part of the ABC transporter complex CcmAB involved in the biogenesis of c-type cytochromes; once thought to export heme, this seems not to be the case, but its exact role is uncertain. Responsible for energy coupling to the transport system (By similarity).
Catalytic activity
- heme b(in) + ATP + H2O = heme b(out) + ADP + phosphate + H+heme b (in)CHEBI:60344
+ CHEBI:30616 + CHEBI:15377 = heme b (out)CHEBI:60344+ CHEBI:456216 + CHEBI:43474 + CHEBI:15378
Features
Showing features for binding site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Binding site | 41-48 | ATP (UniProtKB | ChEBI) | |||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | mitochondrial membrane | |
Molecular Function | ABC-type heme transporter activity | |
Molecular Function | ATP binding | |
Molecular Function | ATP hydrolysis activity | |
Biological Process | cytochrome complex assembly |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameCytochrome c biogenesis ATP-binding export protein CcmA
- EC number
- Alternative names
Gene names
Encoded on
- Mitochondrion
Organism names
- Organism
- Strain
- Taxonomic lineageEukaryota > Discoba > Jakobida > Histionina > Histionidae > Reclinomonas
Accessions
- Primary accessionO21280
Subcellular Location
UniProt Annotation
GO Annotation
Mitochondrion membrane ; Peripheral membrane protein
Keywords
- Cellular component
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Chain | PRO_0000092229 | 1-222 | Cytochrome c biogenesis ATP-binding export protein CcmA | ||
Interaction
Subunit
The complex is composed of two ATP-binding proteins (CcmA) and two transmembrane proteins (ccmB).
Structure
Sequence
- Sequence statusComplete
- Length222
- Mass (Da)25,502
- Last updated1998-01-01 v1
- ChecksumA343CBFB8393A5A9
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AF007261 EMBL· GenBank· DDBJ | AAD11907.1 EMBL· GenBank· DDBJ | Genomic DNA |