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Article

Observations on the calcium dependence and reversibility of cobalamin transport across the outer membrane of Escherichia coli.

The Journal of biological chemistry - 30 Nov 2007

Cadieux Nathalie, Barekzi Nazir, Bradbeer Clive

Abstract excerpt

The calcium dependence of cobalamin (Cbl) binding to the BtuB protein of Escherichia coli and the reversibility of its function in the transport of Cbl across the outer membrane have been examined. The results show that the two calcium-binding sites in BtuB that were identified previously by others are responsible for the calcium dependence of high affinity Cbl binding. The affinity of the pure BtuB protein for...

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Identifiers

PMID: 17908684
DOI: 10.1074/jbc.M707426200

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Observations on the calcium dependence and reversibility of cobalamin transport across the outer membrane of Escherichia coli.PMID 17908684Read ↗

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