Abstract

The outer membrane proteins of five clinical isolates of Campylobacter jejuni were identified by 125I-surface labelling and SDS-PAGE of outer membrane preparations. All isolates expressed a major outer membrane protein of variable molecular weight (43 000-46 000: 43K-46K). Several constant surface proteins were also identified including a 27K protein which was surface-exposed and acid-extractable but was not present in the outer membrane preparations. Isolated flagella comprised a major 62K protein and a minor 87K protein. Both proteins were absent in an aflagellate variant. The 62K protein was immunoblotted and immunoprecipitated by rabbit anti-flagella antisera.

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