MMAA Information & MMAA Links at HealthHaven.com

methylmalonic aciduria (cobalamin deficiency) cblA type
Identifiers
Symbol	MMAA
Entrez	166785
HUGO	18871
OMIM	607481
RefSeq	NM_172250
UniProt	Q8IVH4
Other data
Locus	Chr. 4 q31.1

Methylmalonic aciduria (cobalamin deficiency) cblA type also known as MMAA is a protein which in humans is encoded by the MMAA gene.^[1]

[edit] Function

The protein encoded by this gene is involved in the translocation of cobalamin into the mitochondrion, where it is used in the final steps of adenosylcobalamin synthesis. Adenosylcobalamin is a coenzyme required for the activity of methylmalonyl-CoA mutase.^[2]

[edit] Clinical signficance

Mutations in the MMAA gene are associated with methylmalonic acidemia.^[1]^[3]

[edit] References

^ ^a ^b Dobson CM, Wai T, Leclerc D, Wilson A, Wu X, Doré C, Hudson T, Rosenblatt DS, Gravel RA (November 2002). "Identification of the gene responsible for the cblA complementation group of vitamin B12-responsive methylmalonic acidemia based on analysis of prokaryotic gene arrangements". Proc. Natl. Acad. Sci. U.S.A. 99 (24): 15554–9. doi:10.1073/pnas.242614799. PMID 12438653.
^ "Entrez Gene: MMAA methylmalonic aciduria (cobalamin deficiency) cblA type". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=166785.
^ Lerner-Ellis JP, Dobson CM, Wai T, Watkins D, Tirone JC, Leclerc D, Doré C, Lepage P, Gravel RA, Rosenblatt DS (December 2004). "Mutations in the MMAA gene in patients with the cblA disorder of vitamin B12 metabolism". Hum. Mutat. 24 (6): 509–16. doi:10.1002/humu.20104. PMID 15523652.

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

This article on a gene on chromosome 4 is a stub. You can help Wikipedia by expanding it.

[pmid12438653-0] Dobson CM, Wai T, Leclerc D, Wilson A, Wu X, Doré C, Hudson T, Rosenblatt DS, Gravel RA (November 2002). "Identification of the gene responsible for the cblA complementation group of vitamin B12-responsive methylmalonic acidemia based on analysis of prokaryotic gene arrangements". Proc. Natl. Acad. Sci. U.S.A. 99 (24): 15554–9. doi:10.1073/pnas.242614799. PMID 12438653.

[entrez-1] "Entrez Gene: MMAA methylmalonic aciduria (cobalamin deficiency) cblA type". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=166785.

[pmid15523652-2] Lerner-Ellis JP, Dobson CM, Wai T, Watkins D, Tirone JC, Leclerc D, Doré C, Lepage P, Gravel RA, Rosenblatt DS (December 2004). "Mutations in the MMAA gene in patients with the cblA disorder of vitamin B12 metabolism". Hum. Mutat. 24 (6): 509–16. doi:10.1002/humu.20104. PMID 15523652.

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