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A change in the genetic code in Mycoplasma capricolumMycoplasma capricolum was previously found to use UGA instead of UGG as its codon for tryptophan and to contain 75 percent A + T in its DNA. The codon change could have been due to mutational pressure to replace C + G by A + T, resulting in the replacement of UGA stop codons by UAA, change of the anticodon in tryptophan tRNA from CCA to UCA, and replacement of UGG tryptophan codons by UGA. None of these changes should have been deleterious.
Document ID
19860039262
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Jukes, T. H.
(California, University Berkeley, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Journal of Molecular Evolution
Volume: 22
Issue: 4 19
ISSN: 0022-2844
Subject Category
Life Sciences (General)
Accession Number
86A24000
Funding Number(s)
CONTRACT_GRANT: NGR-05-003-460
Distribution Limits
Public
Copyright
Other

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