Holotranscobalamins in B-12 and non B-12 requiring prokaryotes and eukaryotes

被引：2

作者：

Baker, H ^{[1
]}

DeAngelis, B ^{[1
]}

Khalil, M ^{[1
]}

Frank, O ^{[1
]}

Baker, ER ^{[1
]}

机构：

[1] UNIV MED & DENT NEW JERSEY,NEW JERSEY MED SCH,DEPT MED,NEWARK,NJ 07103

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY | 1996年 / 113卷 / 04期

关键词：

cobalamins; eukaryotes; holotranscobalamins; prokaryotes; transcobalamins; vitamin B-12;

D O I：

10.1016/0305-0491(95)02096-9

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Transcobalamins, vitamin B-12 binding proteins, deliver Bit to cell surface receptors which then permit B-12 to cross cell membranes for metabolic use. There is little documentation concerning B-12 binding proteins in bacteria and protists. We found that prokaryotes and eukaryotes requiring B-12, as well as those protists synthesizing B-12, also produce several transcobalamins for functionally transporting B-12 Similar to humans.

引用

页码：707 / 709

页数：3

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