Discovery of a novel esterase subfamily sharing an identified arm sequence (ArmEst) by gene-specific metagenomic PCR
Discovery of a novel esterase subfamily sharing an identified arm sequence (ArmEst) by gene-specific metagenomic PCR
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通过基因特异性宏基因组 PCR 发现共享已识别臂序列 (ArmEst) 的新型酯酶亚家族
DOI:
10.1007/s10529-013-1293-4
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发表时间:
2013-07
影响因子:
2.7
通讯作者:
Wang, Qiuyan
中科院分区:
文献类型:
--
作者:
Pei, Xiaolin;Yu, Li;Yin, Xiaopu;Wang, Qiuyan
A gene-specific, metagenomic PCR method has led to the discovery of a novel esterase subfamily consisting of five homologous members. Sequence analysis of this esterase subfamily, named the ArmEst subfamily, revealed a unique conserved pattern with a significant variable interior sequence flanked by two symmetric and identical long arm sequences. The two homologous long arm sequences had 100 % sequence identity and symmetry at both ends between the five members of this esterase class, but only 17–58 % identity was shared for the internal sequence. The biochemical properties of two of the ArmEst esterases definitively demonstrated that they are true active esterases rather than pseudogenes. This is the first report presenting an esterase subfamily containing a unique arm sequence, indicating a rare homologous recombination occurring in the coding area of a functional gene to generate their functional diversity.
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影响因子:
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作者:
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通讯作者:
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影响因子:
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DOI:
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发表时间:
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期刊:
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