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Article

Interdependence of calcium and cobalamin binding by wild-type and mutant BtuB protein in the outer membrane of Escherichia coli.

Journal of bacteriology - 1 Sept 1990

Bradbeer C, Gudmundsdottir A

Abstract excerpt

The binding of calcium and cobalamin to outer membranes from cells of Escherichia coli that contained amplified levels of wild-type or mutant btuB was studied. The mutant (BBam50) had an aspartyl-prolyl dipeptide inserted after the original 50th amino acid residue of the mature BtuB protein, whic...

Topics

Amino Acid Sequence
Bacterial Outer Membrane Proteins
Binding Sites
Calcium
Escherichia coli
Escherichia coli Proteins
Kinetics
Membrane Transport Proteins
Molecular Sequence Data
Mutation
Protein Binding
Protein Conformation

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Receptors, Cell Surface

Receptors, Peptide

Vitamin B 12

Source

Open in PubMed Open full text

Identifiers

PMID: 2168369
DOI: 10.1128/jb.172.9.4919-4926.1990
PMCID: PMC213146

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 30 Aug 2026. Prepared record publication-2168369-2026-08-30.1. Manifest publication-graph-cohort-2026-08-30.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 30 Aug 2026.

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Interdependence of calcium and cobalamin binding by wild-type and mutant BtuB protein in the outer membrane of Escherichia coli.PMID 2168369Read ↗

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