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Cancer tissues displayed weak cytoplasmic staining or were negative. Hepatocellular carcinomas along with several cases of carcinoids, breast, testicular, prostate, colorectal and ovarian cancers showed moderate positivity.
Cancer tissues showed weak to moderate cytoplasmic positivity with additional membranous staining in a few cases. Few colorectal, breast cancers, skin and uterine cervix showed strong staining. A few lymphomas and occasional gliomas were negative.
GENE INFORMATION
Gene name
MMADHC (HGNC Symbol)
Synonyms
C2orf25, cblD, CL25022
Description
Methylmalonic aciduria (cobalamin deficiency) cblD type, with homocystinuria (HGNC Symbol)
Entrez gene summary
This gene encodes a mitochondrial protein that is involved in an early step of vitamin B12 metabolism. Vitamin B12 (cobalamin) is essential for normal development and survival in humans. Mutations in this gene cause methylmalonic aciduria and homocystinuria type cblD (MMADHC), a disorder of cobalamin metabolism that is characterized by decreased levels of the coenzymes adenosylcobalamin and methylcobalamin. Pseudogenes have been identified on chromosomes 11 and X.[provided by RefSeq, Nov 2008]