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. 1970 Apr;65(4):955–961. doi: 10.1073/pnas.65.4.955

Biochemical and Genetic Studies of Recombination Proficiency in Escherichia coli, I. Enzymatic Activity Associated with recB+ and recC+ Genes*

Stephen D Barbour 1,2,†, Alvin J Clark 1,2
PMCID: PMC283009  PMID: 4909471

Abstract

An adenosine triphosphate-dependent deoxyribonuclease activity has been detected in lysates of recB+ recC+ strains. Mutations in recB or recC lead to loss of this activity, suggesting that these two genes determine the nuclease activity. The over-all reaction in crude lysates digests native DNA to nucleoside monophosphates. Complementation between recB21 and recC22 in vivo leads to normal levels of ATP-dependent nuclease activity. No complementation in vitro has been detected. Mutations in a third recombination gene (recA) do not alter significantly the wild-type levels of this nuclease activity.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Buttin G., Wright M. Enzymatic DNA degradation in E. coli: its relationship to synthetic processes at the chromosome level. Cold Spring Harb Symp Quant Biol. 1968;33:259–269. doi: 10.1101/sqb.1968.033.01.030. [DOI] [PubMed] [Google Scholar]
  2. Clark A. J., Chamberlin M., Boyce R. P., Howard-Flanders P. Abnormal metabolic response to ultraviolet light of a recombination deficient mutant of Escherichia coli K12. J Mol Biol. 1966 Aug;19(2):442–454. doi: 10.1016/s0022-2836(66)80015-3. [DOI] [PubMed] [Google Scholar]
  3. Clark A. J. The beginning of a genetic analysis of recombination proficiency. J Cell Physiol. 1967 Oct;70(2 Suppl):165–180. doi: 10.1002/jcp.1040700412. [DOI] [PubMed] [Google Scholar]
  4. Dürwald H., Hoffmann-Berling H. Endonuclease-I-deficient and ribonuclease I-deficient Escherichia coli mutants. J Mol Biol. 1968 Jul 14;34(2):331–346. doi: 10.1016/0022-2836(68)90257-x. [DOI] [PubMed] [Google Scholar]
  5. Gefter M. L., Becker A., Hurwitz J. The enzymatic repair of DNA. I. Formation of circular lambda-DNA. Proc Natl Acad Sci U S A. 1967 Jul;58(1):240–247. doi: 10.1073/pnas.58.1.240. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Gellert M. Formation of covalent circles of lambda DNA by E. coli extracts. Proc Natl Acad Sci U S A. 1967 Jan;57(1):148–155. doi: 10.1073/pnas.57.1.148. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Godson G. N., Sinsheimer R. L. Lysis of Escherichia coli with a neutral detergent. Biochim Biophys Acta. 1967 Dec 19;149(2):476–488. doi: 10.1016/0005-2787(67)90175-x. [DOI] [PubMed] [Google Scholar]
  8. LEHMAN I. R., ROUSSOS G. G., PRATT E. A. The deoxyribonucleases of Escherichia coli. II. Purification and properties of a ribonucleic acid-inhibitable endonuclease. J Biol Chem. 1962 Mar;237:819–828. [PubMed] [Google Scholar]
  9. LEHMAN I. R. The deoxyribonucleases of Escherichia coli. I. Purification and properties of a phosphodiesterase. J Biol Chem. 1960 May;235:1479–1487. [PubMed] [Google Scholar]
  10. Low B. Formation of merodiploids in matings with a class of Rec- recipient strains of Escherichia coli K12. Proc Natl Acad Sci U S A. 1968 May;60(1):160–167. doi: 10.1073/pnas.60.1.160. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Signer E., Echols H., Weil J., Radding C., Shulman M., Moore L., Manly K. The general recombination system of bacteriophage lambda. Cold Spring Harb Symp Quant Biol. 1968;33:711–714. doi: 10.1101/sqb.1968.033.01.080. [DOI] [PubMed] [Google Scholar]
  12. Taylor A. L., Trotter C. D. Revised linkage map of Escherichia coli. Bacteriol Rev. 1967 Dec;31(4):332–353. doi: 10.1128/br.31.4.332-353.1967. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Willetts N. S., Clark A. J. Characteristics of some multiply recombination-deficient strains of Escherichia coli. J Bacteriol. 1969 Oct;100(1):231–239. doi: 10.1128/jb.100.1.231-239.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Willetts N. S., Clark A. J., Low B. Genetic location of certain mutations conferring recombination deficiency in Escherichia coli. J Bacteriol. 1969 Jan;97(1):244–249. doi: 10.1128/jb.97.1.244-249.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Willetts N. S., Mount D. W. Genetic analysis of recombination-deficient mutants of Escherichia coli K-12 carrying rec mutations cotransducible with thyA. J Bacteriol. 1969 Nov;100(2):923–934. doi: 10.1128/jb.100.2.923-934.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]

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