======= MMACHC ======= == Gene Information == * **Official Symbol**: MMACHC * **Official Name**: metabolism of cobalamin associated C * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=25974|25974]] * **UniProt**: [[https://www.uniprot.org/uniprot/Q9Y4U1|Q9Y4U1]] * **Interactions**: [[https://thebiogrid.org/search.php?search=MMACHC&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20MMACHC|Open PubMed]] * **OMIM**: [[https://omim.org/entry/609831|Open OMIM]] == Function Summary == * **Entrez Summary**: The exact function of the protein encoded by this gene is not known, however, its C-terminal region shows similarity to TonB, a bacterial protein involved in energy transduction for cobalamin (vitamin B12) uptake. Hence, it is postulated that this protein may have a role in the binding and intracellular trafficking of cobalamin. Mutations in this gene are associated with methylmalonic aciduria and homocystinuria type cblC. [provided by RefSeq, Oct 2009]. * **UniProt Summary**: Catalyzes the reductive dealkylation of cyanocobalamin to cob(II)alamin, using FAD or FMN as cofactor and NADPH as cosubstrate (PubMed:19700356, PubMed:21697092, PubMed:22642810). Can also catalyze the glutathione-dependent reductive demethylation of methylcobalamin, and, with much lower efficiency, the glutathione-dependent reductive demethylation of adenosylcobalamin (PubMed:19801555, PubMed:22642810, PubMed:25809485). 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 (PubMed:19801555). Binds cyanocobalamin, adenosylcobalamin, methylcobalamin and other, related vitamin B12 derivatives (PubMed:21071249). {ECO:0000269|PubMed:19700356, ECO:0000269|PubMed:19801555, ECO:0000269|PubMed:21071249, ECO:0000269|PubMed:21697092, ECO:0000269|PubMed:22642810, ECO:0000269|PubMed:25809485}. No Pfam Domain information is available for this gene. |cyanocobalamin reductase (cyanide-eliminating) activity| |cobalamin biosynthetic process| |demethylase activity| |water-soluble vitamin biosynthetic process| |cobalamin binding| |glutathione binding| |vitamin biosynthetic process| |cobalamin metabolic process| |tetrapyrrole biosynthetic process| |FAD binding| |glutathione metabolic process| |tetrapyrrole metabolic process| |demethylation| |water-soluble vitamin metabolic process| |oxidoreductase activity| |vitamin metabolic process| |cellular modified amino acid metabolic process| |cofactor biosynthetic process| |sulfur compound metabolic process| |cofactor metabolic process| |drug metabolic process| |peptide metabolic process| |small molecule biosynthetic process| |cellular amide metabolic process| |protein homodimerization activity| |oxidation-reduction process| |heterocycle biosynthetic process| |aromatic compound biosynthetic process| |organic cyclic compound biosynthetic process| |organonitrogen compound biosynthetic process| |cellular nitrogen compound biosynthetic process| |small molecule metabolic process| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp501|Methotrexate 0.01μM R08 exp501]]|-2.83| |[[:results:exp214|2-Deoxy-D-glucose 800μM R05 exp214]]|-2.11| |[[:results:exp500|LY2090314 0.003μM R08 exp500 no dilution day6]]|-2.11| |[[:results:exp335|Aminopterin 0.005μM R07 exp335]]|-1.75| |[[:results:exp372|Ibrutinib 1μM R07 exp372]]|-1.75| |[[:results:exp148|SB202190 10μM R03 exp148]]|1.85| |[[:results:exp211|AICAR 240μM R05 exp211]]|5.43| |[[:results:exp116|AICAR 240μM R03 exp116]]|6.57| ^Gene^Correlation^ |[[:human genes:m:mtr|MTR]]|0.586| |[[:human genes:s:slc25a32|SLC25A32]]|0.478| |[[:human genes:m:mtrr|MTRR]]|0.464| |[[:human genes:m:mthfd1l|MTHFD1L]]|0.456| |[[:human genes:m:mthfd2|MTHFD2]]|0.455| |[[:human genes:s:shmt2|SHMT2]]|0.454| |[[:human genes:a:ak2|AK2]]|0.444| |[[:human genes:n:nudt2|NUDT2]]|0.43| |[[:human genes:a:adss|ADSS]]|0.422| Global Fraction of Cell Lines Where Essential: 1/739 ^Tissue^Fraction Of Cell Lines Where Essential^ |1290807.0|0/1| |909776.0|0/1| |bile duct|0/28| |blood|0/28| |bone|0/26| |breast|0/33| |central nervous system|0/56| |cervix|0/4| |colorectal|0/17| |esophagus|0/13| |fibroblast|0/1| |gastric|0/16| |kidney|0/21| |liver|0/20| |lung|1/75| |lymphocyte|0/16| |ovary|0/26| |pancreas|0/24| |peripheral nervous system|0/16| |plasma cell|0/15| |prostate|0/1| |skin|0/24| |soft tissue|0/9| |thyroid|0/2| |upper aerodigestive|0/22| |urinary tract|0/29| |uterus|0/5| == Essentiality in NALM6 == * **Essentiality Rank**: 10277 * **Expression level (log2 read counts)**: 6.36 {{:chemogenomics:nalm6 dist.png?nolink |}}