Homo sapiens Protein: MMAA
Summary
InnateDB Protein IDBP-39994.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol MMAA
Protein Name methylmalonic aciduria (cobalamin deficiency) cblA type
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000281317
InnateDB Gene IDBG-39992 (MMAA)
Protein Structure
UniProt Annotation
Function Probable GTPase. May function as chaperone. May be involved in the transport of cobalamin (Cbl) into mitochondria for the final steps of adenosylcobalamin (AdoCbl) synthesis.
Subcellular Localization Mitochondrion {ECO:0000305}.
Disease Associations Methylmalonic aciduria type cblA (MMAA) [MIM:251100]: A disorder of methylmalonate and cobalamin metabolism due to defective synthesis of adenosylcobalamin. {ECO:0000269PubMed:12438653, ECO:0000269PubMed:15308131, ECO:0000269PubMed:15523652}. Note=The disease is caused by mutations affecting the gene represented in this entry.
Tissue Specificity Widely expressed. Highest expression is observed in liver and skeletal muscle.
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 4 experimentally validated interaction(s) in this database.
Experimentally validated
Total 4 [view]
Protein-Protein 4 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
GO:0005525 GTP binding
GO:0017111 nucleoside-triphosphatase activity
Biological Process
GO:0006635 fatty acid beta-oxidation
GO:0006766 vitamin metabolic process
GO:0006767 water-soluble vitamin metabolic process
GO:0009235 cobalamin metabolic process
GO:0009236 cobalamin biosynthetic process
GO:0019626 short-chain fatty acid catabolic process
GO:0044255 cellular lipid metabolic process
GO:0044281 small molecule metabolic process
Cellular Component
GO:0005759 mitochondrial matrix
Protein Structure and Domains
PDB ID
InterPro IPR003495 CobW/HypB/UreG domain
IPR005129 ArgK protein
IPR027417 P-loop containing nucleoside triphosphate hydrolase
PFAM PF02492
PF03308
PRINTS
PIRSF
SMART
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q8IVH4
PhosphoSite PhosphoSite-Q8IVH4
TrEMBL Q495G6
UniProt Splice Variant
Entrez Gene 166785
UniGene Hs.599597
RefSeq NP_758454
HUGO HGNC:18871
OMIM 607481
CCDS CCDS3766
HPRD 07394
IMGT
EMBL AC093864 AF524841 AF524842 AF524843 AF524844 AF524845 AF524846 AK126662 BC101178 BC101179 BC101180 CH471056
GenPept AAI01179 AAI01180 AAI01181 AAN77287 BAG54352 EAX05036