Identification
BMDB Protein ID BMDBP01983
Secondary Accession Numbers None
Name Methylmalonic aciduria and homocystinuria type C protein homolog
Synonyms Not Available
Gene Name MMACHC
Protein Type Enzyme
Biological Properties
General Function Involved in cobalamin binding
Specific Function Catalyzes the reductive dealkylation of cyanocobalamin to cob(II)alamin, using FAD or FMN as cofactor and NADPH as cosubstrate. Can also catalyze the glutathione-dependent reductive demethylation of methylcobalamin, and, with much lower efficiency, the glutathione-dependent reductive demethylation of adenosylcobalamin. Under anaerobic conditions cob(I)alamin is the first product; it is highly reactive and is converted to aquocob(II)alamin in the presence of oxygen. Binds cyanocobalamin, adenosylcobalamin, methylcobalamin and other, related vitamin B12 derivatives.
Pathways
  • Adenosylcobalamin biosynthesis
  • Cofactor biosynthesis
Reactions Not Available
GO Classification Not Available
Cellular Location Not Available
Gene Properties
Chromosome Location 3
Locus Not Available
SNPs MMACHC
Gene Sequence
>843 bp
ATGGAGCCGCTAGTCGCAGAGCTGAAGCAGAAGATTGAGGACACGTTGTGCCCTTTTGGC
TTCGAAGTTTACCCCTTCCAGGTGGCATGGTACAATGCACTCCTGCCTCCAGCCTTCCAC
CTACCCCTGCCAGGACCTACACTGGCCTTCCTGGTACTCAGCACACCTGCCATGTTTGAC
CAGGCCCTCAAGCCCTTCCTGCAGAGCCACCACCTCCAACCACTGACTGACCCTGTGGAC
CAGTGTGTGGCCTACCACCTGGGCCGAGTTAGAGAGAGCCTCCCAGAGCTGCAGATAGAA
GTCATCGCTGACTACGAGGTACACCCCAACCGGCGCCCCAAGATCCTGGCCCAGACAGCA
GCCCATGTAGCAGGGGCTGCTTACTACTATCAGCGACAGGATGTGGAGTCTGACCCTTGG
GGGACCCAGCACATAGCAGGTGTGTGCATACATCCCAGGTTTGGGGGCTGGTTTGCCATC
CGAGGGGTGGTGCTACTGCGAGGAACAGAGGTGCCGAATCTGCCACCCACAAAGCCCGTT
GACTGTGTACCCACAAGAGCTGACCGCATCAGCCTGCTTGAACGCTTCAATTTCCATTGG
CGTGACTGGACTTACCGGGATGCTGTGACACCTCAGGAGCGCTACTCAGAAGAGCAGAAG
GCATACTTTTCCACTCCTCCTGCCCAACGCTTGGCCTTACTGGGCTTGCTTCAGCCCTCA
GAGGAGCCTAGCTCTCCATCCCAAGAGCTTCACATCACTACACTCTTATCCAAGAAGCCT
CAGAATCCCAGGAGAGGCTGGCTCAGTCCCACAGTTTCCCCACCTATATCCCCTGGACCC
TGA
Protein Properties
Number of Residues 280
Molecular Weight 31633.0
Theoretical pI 6.85
Pfam Domain Function Not Available
Signals
  • None
Transmembrane Regions
  • 19-39
Protein Sequence
>Methylmalonic aciduria and homocystinuria type C homolog
MEPLVAELKQKIEDTLCPFGFEVYPFQVAWYNALLPPAFHLPLPGPTLAFLVLSTPAMFD
QALKPFLQSHHLQPLTDPVDQCVAYHLGRVRESLPELQIEVIADYEVHPNRRPKILAQTA
AHVAGAAYYYQRQDVESDPWGTQHIAGVCIHPRFGGWFAIRGVVLLRGTEVPNLPPTKPV
DCVPTRADRISLLERFNFHWRDWTYRDAVTPQERYSEEQKAYFSTPPAQRLALLGLLQPS
EEPSSPSQELHITTLLSKKPQNPRRGWLSPTVSPPISPGP
GenBank ID Protein AAX09009.1
UniProtKB/Swiss-Prot ID Q5E9C8
UniProtKB/Swiss-Prot Entry Name MMAC_BOVIN
PDB IDs Not Available
GenBank Gene ID BT020992
GeneCard ID MMACHC
GenAtlas ID Not Available
HGNC ID Not Available
References
General References Not Available