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. 1994 Oct;176(19):6082–6087. doi: 10.1128/jb.176.19.6082-6087.1994

Characterization of lipoprotein EnvA in Chlamydia psittaci 6BC.

K D Everett 1, D M Desiderio 1, T P Hatch 1
PMCID: PMC196828  PMID: 7928970

Abstract

The primary sequence of the small cysteine-rich protein (EnvA) of Chlamydia psittaci 6BC has been shown to possess a potential lipid modification/signal peptidase II-processing site, and the mature protein was labeled by a [3H]palmitic acid precursor. We further characterized the mature EnvA, showing that it lacks the N-terminal methionine of the primary peptide, is hydrophobic despite a peptide sequence that is predicted to be hydrophilic, and appears to be lipid modified at an N-terminal cysteine in a manner analogous to that of murein lipoproteins of gram-negative bacteria. We also report the fatty acid content of the small cysteine-rich proteins of C. psittaci and Chlamydia trachomatis L2 as determined by combined gas chromatography-mass spectrometry.

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Selected References

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