| Duplication and Combination of P-Loop Containing Nucleotide Triphosphate Hydrolases Superfamily |
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| 作者姓名： | SANG Jianping GUAN Wei ZOU Xianwu |
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| 作者单位： | [1]School of Physics Science and Technology, Wuhan University, Wuhan 430072, Hubei, China [2]Department of Physics, Jianghan University, Wuhan 430056, Hubei, China |
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| 摘 要： | In a genome the set of proteins are formed by duplication and combination of domain superfamilies. P-loop containing nucleotide triphosphate （NTP） hydrolases superfamily is massively duplicated and has the most different partner superfamilies among archaea, bacteria and eukarya, Here, we study the distributions of duplication and combination of p-loop containing NTP hydrolases superfamily in 169 completed genomes. When the total number of domains in a genome is larger, duplication and combination partners of p-loop conraining NTP hydrolases are more. This phenomenon is more obvious in metazoa. The distributions of abundance and corn bination of partners relate to the functions of the protein. Those distributions in metazoa are very different from those in other kingdoms because of complexity of metazoa. Finally the relationship between duplication and combination of p-loop containing NTP hydrolases superfamily in different genomes is described. It fits a power law.
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| 关 键 词： | 水解酶 组合 重叠 基因组 生物信息 核苷酸 |
| 文章编号： | 1007-1202（2006）03-0577-04 |
| 收稿时间： | 2005-11-19 |
Duplication and combination of P-loop containing nucleotide triphosphate hydrolases superfamily |
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| SANG Jianping GUAN Wei ZOU Xianwu.Duplication and Combination of P-Loop Containing Nucleotide Triphosphate Hydrolases Superfamily[J].Wuhan University Journal of Natural Sciences,2006,11(3):577-580. |
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| Authors: | Sang Jianping Guan Wei Zou Xianwu |
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| Institution: | (1) School of Physics Science and Technology, Wuhan University, 430072 Wuhan Hubei, China;(2) Department of Physics, Jianghan University, 430056 Wuhan Hubei, China |
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| Abstract: | In a genome the set of proteins are formed by duplication and combination of domain superfamilies. P-loop containing nucleotide triphosphate (NTP) hydrolases superfamily is massively duplicated and has the most different partner superfamilies among archaea, bacteria and eukarya. Here, we study the distributions of duplication and combination of p-loop containing NTP hydrolases superfamily in 169 completed genomes. When the total number of domains in a genome is larger, duplication and combination partners of p-loop containing NTP hydrolases are more. This phenomenon is more obvious in metazoa. The distributions of abundance and combination of partners relate to the functions of the protein. Those distributions in metazoa are very different from those in other kingdoms because of complexity of metazoa. Finally the relationship between duplication and combination of p-loop containing NTP hydrolases superfamily in different genomes is described. It fits a power law. |
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| Keywords: | p-loop containing NTP hydrolases combination duplication genome |
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