Absence of vitamin B12-binding proteins in the histamine-containing gastric carcinoid in Praomys (Mastomys) natalensis.
The transplantable argyrophilic gastric carcinoids producing histamine found in Praomys (Mastomys) natalensis contained no significant amount of vitamin B12-binding proteins. It was also demonstrated that the concentration of vitamin B12-binding proteins in glandular stomach of mastomys was much lower than those in the same tissues of the rat or mouse.
D000818:Animals; D002276:Carcinoid Tumor / Q000378:metabolism*; D002352:Carrier Proteins / Q000032:analysis; D006801:Humans; D007437:Intrinsic Factor / Q000378:metabolism; D051379:Mice; D009374:Neoplasms, Experimental / Q000378:metabolism; D051381:Rats; D012377:Rodentia; D013274:Stomach Neoplasms / Q000378:metabolism*; D014805:Vitamin B 12 / Q000378:metabolism*
D002352:Carrier Proteins; D007437:Intrinsic Factor; D014805:Vitamin B 12