Abstract
Loss of small, acid-soluble spore protein alpha reduced spore UV resistance 30- to 50-fold in Bacillus subtilis strains deficient in pyrimidine dimer repair, but gave only a 5- to 8-fold reduction in UV resistance in repair-proficient strains. However, both repair-proficient and -deficient spores lacking this protein had identical heat and gamma-radiation resistance.
Publication types
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Bacillus subtilis / metabolism
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Bacillus subtilis / physiology
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Bacillus subtilis / radiation effects*
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Bacterial Proteins / deficiency*
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DNA Repair / radiation effects*
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Pyrimidine Dimers / deficiency*
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Sigma Factor*
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Spores, Bacterial / radiation effects
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Transcription Factors*
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Ultraviolet Rays*
Substances
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Bacterial Proteins
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Pyrimidine Dimers
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Sigma Factor
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Transcription Factors
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spoIIR protein, Bacillus subtilis
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spore-specific proteins, Bacillus