Spinach carbonic anhydrase: investigation of the zinc-binding ligands by site-directed mutagenesis, elemental analysis, and EXAFS.
Spinach carbonic anhydrase: investigation of the zinc-binding ligands by site-directed mutagenesis, elemental analysis, and EXAFS.
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菠菜碳酸酐酶:通过定点诱变、元素分析和 EXAFS 研究锌结合配体。
DOI:
10.1021/bi00248a023
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发表时间:
1994
期刊:
影响因子:
2.9
通讯作者:
Sue G. Bartlett
中科院分区:
文献类型:
--
作者:
Michael H. Bracey;J. Christiansen;Pilar Tovar;Stephen P. Cramer;Sue G. Bartlett
The enzyme carbonic anhydrase has been well characterized in mammalian systems, but the structural properties of the plant isozymes remain elusive. To investigate the nature of the zinc-binding site in spinach carbonic anhydrase, we targeted potential zinc ligands for mutagenesis and examined the resulting enzymes for catalytic activity and stoichiometric zinc binding. In addition, we examined the wild-type protein using extended X-ray absorption fine structure analysis. Our results suggest that spinach carbonic anhydrase utilizes a Cys-His-Cys-H2O ligand scheme to bind the zinc ion at the active site.
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DOI:
10.1016/0162-0134(89)84572-6
发表时间:
1989-05
影响因子:
11.1
作者:
Tao Pan;JosephE. Coleman
通讯作者:
Tao Pan;JosephE. Coleman
影响因子:
2.9
作者:
Giedroc,DP;Keating,KM;Williams,KR;Coleman,JE
通讯作者:
Coleman,JE
DOI:
--
发表时间:
1993
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Bhaumik,D;Medin,J;Gathy,K;Coleman,MS
通讯作者:
Coleman,MS
影响因子:
2.9
作者:
Tu,CK;Paranawithana,SR;Jewell,DA;Tanhauser,SM;LoGrasso,PV;Wynns,GC;Laipis,PJ;Silverman,DN
通讯作者:
Silverman,DN
影响因子:
2.9
作者:
Keating,KM;Ghosaini,LR;Giedroc,DP;Williams,KR;Coleman,JE;Sturtevant,JM
通讯作者:
Sturtevant,JM