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. 1984 May;158(2):404–410. doi: 10.1128/jb.158.2.404-410.1984

Mapping of Rhodopseudomonas capsulata nif genes.

J D Wall, K Braddock
PMCID: PMC215442  PMID: 6586713

Abstract

The endogenous gene transfer system of Rhodopseudomonas capsulata was used to analyze mutations which block the ability to use molecular nitrogen as the sole nitrogen source (nif). With this fine-structure mapping tool, linkage of nif mutations could be reliably established if separated by 2,700 base pairs or less. Eleven independent mutations were analyzed, and five linkage groups were found. The overall chromosomal arrangement of these groups awaits conjugational or physical analysis. A candidate for the inactive subunit of R. capsulata Fe protein was located in gels at a position of about 38,000 molecular weight, 5,000 more than that of the presumed active subunit.

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Selected References

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