Conformational and functional significance of residue proline 17 in chicken muscle adenylate kinase

Conformational and functional significance of residue proline 17 in chicken muscle adenylate kinase
复制标题

鸡肌肉腺苷酸激酶中脯氨酸17残基的构象和功能意义

DOI:
10.1016/s0014-5793(01)03092-7
复制
发表时间:
2001-11
期刊:
影响因子:
3.5
通讯作者:
Jing G. Z.
Jing G. Z.
中科院分区:
生物学3区
文献类型:
--
作者:
Sheng X. R.*;Pan X. M.;Wang C.;Zhang Y.;Jing G. Z.

文献摘要

参考文献

相似文献

研究了脯氨酸17突变对鸡肌肉腺苷酸激酶(AK)多重构象和催化功能的影响。用甘氨酸或缬氨酸取代脯氨酸17改变了多种构象的分布。与野生型酶相比,P17G和P17V突变体含有的次要构象异构体的分数从18%分别下降到9%和11%。由于突变,该酶表现出较低的二级结构含量,对底物或底物类似物的亲和力较差,催化效率降低。结果揭示了脯氨酸17在AK构象和功能中的重要性。
The effect of mutation proline 17 on the multiple conformations and catalytic function in chicken muscle adenylate kinase (AK) has been studied. The substitution of proline 17 with glycine or valine altered the distribution of multiple conformations. Compared with the wild-type enzyme, the P17G and P17V mutants contained decreased fraction of minor conformer from 18% to 9% and 11%, respectively. Due to the mutation, the enzyme showed lower secondary structural content, poorer affinity to substrates or substrate analogues, and reduced catalytic efficiency. The results revealed the significance of proline 17 in the conformation and function of AK.
DOI: 10.1006/jmbi.1997.1322
发表时间: 1997-11
影响因子: 5.6
作者:
J. Prieto;L. Serrano
通讯作者: J. Prieto;L. Serrano
DOI: 10.1016/s0014-5793(00)01947-5
发表时间: 2000-09
期刊: FEBS Letters
影响因子: 3.5
作者:
X. Li;X. Pan
通讯作者: X. Li;X. Pan
DOI: --
发表时间: 1989-01
期刊: The Journal of biological chemistry
影响因子: --
作者:
M. Tagaya;T. Yagami;T. Noumi;M. Futai;F. Kishi;A. Nakazawa;T. Fukui
通讯作者: M. Tagaya;T. Yagami;T. Noumi;M. Futai;F. Kishi;A. Nakazawa;T. Fukui
DOI: 10.1016/b978-0-126-82001-0.x5001-5
发表时间: 1989
期刊: --
影响因子: --
作者:
Tony E. Hugli
通讯作者: Tony E. Hugli
DOI: 10.1021/bi992076h
发表时间: 2000-06-06
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
Shapiro, YE;Sinev, MA;Meirovitch, E
通讯作者: Meirovitch, E