Analysis of the features of 45 identified CRISPR loci in 32 Staphylococcus aureus.
Analysis of the features of 45 identified CRISPR loci in 32 Staphylococcus aureus.
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32 种金黄色葡萄球菌中 45 个已鉴定 CRISPR 位点的特征分析。
DOI:
10.1016/j.bbrc.2015.07.062
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发表时间:
2015-08
期刊:
影响因子:
--
通讯作者:
Haiyan Yang
中科院分区:
文献类型:
--
作者:
Siyu Yang;Jing Liu;Fuye Shao;Pengfei Wang;Guangcai Duan;Haiyan Yang
Staphylococcus aureus(S. aureus) is a common pathogen that can cause serious infections, even death. Because of the horizontal gene transfer (HGT) of antibiotic resistance genes, the drug resistant condition is becoming increasingly prevalent. Recently, an adaptive immunity system, named clustered regularly interspaced short palindromic repeats (CRISPR), was discovered and demonstrated to confer a defense against foreign invading elements that may carry the antibiotic resistance genes. In this study, we reveal the features of 45 identified CRISPR loci and the CRISPR associated gene (Cas) in 32S.aureusstrains from CRISPR database. Five spacers ofS.aureus08BA02176 and MSHR1132 were homologous with foreign genetic sequences from phages or plasmids, even containing a spacer sequence identical to part of some phages' genomes containing lukPV gene that encodes the PVL toxin. ManyS.aureusstrains with the same CRISPR type shared the same MLST type. CRISPR loci that had 3 or more similar protein loci mostly belonged to the same CRISPR type. We came to the conclusion that the CRISPR/Cas of strains 08BA02176 and MSHR1132 were inherited from a common ancestor or recombined fromStaphylococcus lugdunensis. CRISPR loci can be mobilized and can transfer among different but closely related species, and the same types of MLST strains exhibit a higher affinity to the same types of CRISPR loci. Bacteriophages may be the predominant challenge facingS.aureus. The CRISPR/Cas structure may limit the transmission of bacterial virulence amongS.aureus.
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DOI:
10.1038/nrg2749
发表时间:
2010-03
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1126/science.1165771
发表时间:
2008-12-19
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Marraffini LA;Sontheimer EJ
通讯作者:
Sontheimer EJ
影响因子:
8
作者:
Gasiunas, Giedrius;Sinkunas, Tomas;Siksnys, Virginijus
通讯作者:
Siksnys, Virginijus
DOI:
10.1073/pnas.112047299
发表时间:
2002-05-28
影响因子:
11.1
作者:
Tang, TH;Bachellerie, JP;Hüttenhofer, A
通讯作者:
Hüttenhofer, A
影响因子:
3.9
作者:
Mojica, FJM;Díez-Villaseñor, C;Soria, E
通讯作者:
Soria, E