Specification
| Description | Recombinant protein from the full-length sequence of Homo sapiens metabolism of cobalamin associated A (MMAA), transcript variant 1 (NM_172250). |
| Organism | Homo sapiens (Human) |
| Expression Host | Human Cells |
| Tag Info | His or DYKDDDDK. Please contact us if you need further information or require specific designed tag. |
| Purity | Greater than 90% by SDS-PAGE gel |
| Uniprot ID | Q8IVH4 |
| Entry Name | MMAA_HUMAN |
| Gene Names | MMAA |
| Alternative Gene Names | |
| Alternative Protein Names | Methylmalonic aciduria type A protein, mitochondrial (EC 3.6.-.-) |
| Application | Antigens, Western, ELISA and other in vitro binding or in vivo functional assays, and protein-protein interaction studies; For research & development use only! |
| Buffer | Purified protein formulated in a sterile solution of PBS buffer, pH7.2, without any preservatives |
| Endotoxin | Endotoxin level is < 0.1 ng/µg of protein (<1EU /µg) |
| Length | 418 |
| Molecular Weight(Da) | 46538 |
| Protein Sequence | (The sequence of expressed protein may have some variation from the sequence shown below. Please contact us for the exact sequence.) MPMLLPHPHQHFLKGLLRAPFRCYHFIFHSSTHLGSGIPCAQPFNSLGLHCTKWMLLSDGLKRKLCVQTTLKDHTEGLSDKEQRFVDKLYTGLIQGQRACLAEAITLVESTHSRKKELAQVLLQKVLLYHREQEQSNKGKPLAFRVGLSGPPGAGKSTFIEYFGKMLTERGHKLSVLAVDPSSCTSGGSLLGDKTRMTELSRDMNAYIRPSPTRGTLGGVTRTTNEAILLCEGAGYDIILIETVGVGQSEFAVADMVDMFVLLLPPAGGDELQGIKRGIIEMADLVAVTKSDGDLIVPARRIQAEYVSALKLLRKRSQVWKPKVIRISARSGEGISEMWDKMKDFQDLMLASGELTAKRRKQQKVWMWNLIQESVLEHFRTHPTVREQIPLLEQKVLIGALSPGLAADFLLKAFKSRD |
Background
| Function | FUNCTION: GTPase, binds and hydrolyzes GTP (PubMed:28497574, PubMed:20876572, PubMed:21138732, PubMed:28943303). Involved in intracellular vitamin B12 metabolism, mediates the transport of cobalamin (Cbl) into mitochondria for the final steps of adenosylcobalamin (AdoCbl) synthesis (PubMed:28497574, PubMed:20876572). Functions as a G-protein chaperone that assists AdoCbl cofactor delivery from MMAB to the methylmalonyl-CoA mutase (MMUT) (PubMed:28497574, PubMed:20876572). Plays a dual role as both a protectase and a reactivase for MMUT (PubMed:21138732, PubMed:28943303). Protects MMUT from progressive inactivation by oxidation by decreasing the rate of the formation of the oxidized inactive cofactor hydroxocobalamin (OH2Cbl) (PubMed:21138732, PubMed:28943303). Additionally acts a reactivase by promoting the replacement of OH2Cbl by the active cofactor AdoCbl, restoring the activity of MMUT in the presence and hydrolysis of GTP (PubMed:21138732, PubMed:28943303). {ECO:0000269|PubMed:20876572, ECO:0000269|PubMed:21138732, ECO:0000269|PubMed:28497574, ECO:0000269|PubMed:28943303}. |
| Pathway | Cofactor biosynthesis; adenosylcobalamin biosynthesis. |
| Protein Families | SIMIBI class G3E GTPase family, ArgK/MeaB subfamily |
| Tissue Specificity | Widely expressed. Highest expression is observed in liver and skeletal muscle. |
QC Data
| Note | Please contact us for QC Data |
| Product Image (Reference Only) |  |