Sequence polymorphisms of rfbT among the Vibrio cholerae O1 strains in the Ogawa and Inaba serotype shifts.
Sequence polymorphisms of rfbT among the Vibrio cholerae O1 strains in the Ogawa and Inaba serotype shifts.
复制标题
小川型和稻叶型霍乱弧菌 O1 株中 rfbT 序列多态性
DOI:
10.1186/1471-2180-13-173
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发表时间:
2013-07-26
期刊:
影响因子:
4.2
通讯作者:
Kan B
中科院分区:
文献类型:
--
作者:
Liang W;Wang L;Liang P;Zheng X;Zhou H;Zhang J;Zhang L;Kan B
Background
Vibrio cholerae serogroup O1 has two major serotypes, Ogawa and Inaba, which may alternate among cholera epidemics. The rfbT gene is responsible for the conversion between the two serotypes. In this study, we surveyed the sequence variance of rfbT in the Ogawa and Inaba strains in China over a 48-year (1961-2008) period in which serotype shifts occurred among epidemic years.
Results
Various mutation events including single nucleotide, short fragment insertions/deletions and transposases insertions, were found in the rfbT gene of the Inaba strains. Ectopically introducing an intact rfbT could overcome the mutations by converting the Inaba serotype to the Ogawa serotype, suggesting the effects of these mutations on the function of RfbT. Characteristic rfbT mutations were recognized in the Inaba strains among Inaba serotype dominant epidemic years which were separate from the Ogawa dominant epidemics. Three distinguishable mutation sites in rfbT between the classical and the El Tor biotype strains were identified and could serve as biotype-specific biomarkers.
Conclusions
Our results provide a comprehensive picture of the rfbT gene mutations among the V. cholerae O1 strains in different epidemic periods, which could be further used as the tracing markers in clonality analysis and dissemination surveillance of the epidemic strains.
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影响因子:
3.7
作者:
Garza DR;Thompson CC;Loureiro EC;Dutilh BE;Inada DT;Junior EC;Cardoso JF;Nunes MR;de Lima CP;Silvestre RV;Nunes KN;Santos EC;Edwards RA;Vicente AC;de Sá Morais LL
通讯作者:
de Sá Morais LL
影响因子:
3.1
作者:
Chiang, SL;Mekalanos, JJ
通讯作者:
Mekalanos, JJ
影响因子:
3.6
作者:
Comstock, LE;Johnson, JA;Kaper, JB
通讯作者:
Kaper, JB
影响因子:
3.5
作者:
Gao Yan;Pang Bo;Kan Biao
通讯作者:
Kan Biao
影响因子:
15.3
作者:
HERRINGTON, DA;HALL, RH;LOSONSKY, G;MEKALANOS, JJ;TAYLOR, RK;LEVINE, MM
通讯作者:
LEVINE, MM