Structural Basis for Oxidized Glutathione Recognition by the Yeast Cadmium Factor 1.

Structural Basis for Oxidized Glutathione Recognition by the Yeast Cadmium Factor 1.
复制标题

酵母镉因子 1 识别氧化型谷胱甘肽的结构基础。

DOI:
10.1101/2024.01.31.578287
复制
发表时间:
2024
期刊:
bioRxiv : the preprint server for biology
影响因子:
--
通讯作者:
Tomasiak,ThomasM
Tomasiak,ThomasM
中科院分区:
--
文献类型:
--
作者:
Soong,TikHang;Hotze,Clare;Khandelwal,NiteshKumar;Tomasiak,ThomasM

文献摘要

参考文献

相似文献

来自ABCC家族的转运蛋白在解毒亲电性化合物(包括金属、药物和脂类)中起重要作用,通常通过与谷胱甘肽复合物结合。酵母镉因子1 (Ycf1)可单独运输谷胱甘肽以及谷胱甘肽与Cd2+、Hg2+和As3+等有毒重金属结合。为了了解重金属底物结合的复杂选择性和混杂性,我们测定了Ycf1与底物氧化谷胱甘肽结合的低温电镜结构。我们系统地测试了结合决定因素与细胞存活测定镉,以确定底物位点如何适应不同大小的金属配合物。我们确定了一个底物结合的“弯曲口袋”,它不对称地结合谷胱甘肽复合物,并弯曲以适应不同大小的复合物。
Transporters from the ABCC family have an essential role in detoxifying electrophilic compounds including metals, drugs, and lipids, often through conjugation with glutathione complexes. The Yeast Cadmium Factor 1 (Ycf1) transports glutathione alone as well as glutathione conjugated to toxic heavy metals including Cd2+, Hg2+, and As3+. To understand the complicated selectivity and promiscuity of heavy metal substrate binding, we determined the cryo-EM structure of Ycf1 bound to the substrate, oxidized glutathione. We systematically tested binding determinants with cellular survival assays against cadmium to determine how the substrate site accommodates different-sized metal complexes. We identify a “flex-pocket” for substrate binding that binds glutathione complexes asymmetrically and flexes to accommodate different size complexes.
DOI: 10.1111/j.1600-0765.1985.tb00836.x
发表时间: 1985
影响因子: 3.5
作者:
J. Maltha;F. Mikx;F. Kuijpers
通讯作者: F. Kuijpers
DOI: 10.1111/j.1600-051x.1978.tb01913.x
发表时间: 1978-01-01
影响因子: 6.7
作者:
LISTGARTEN, MA;HELLDEN, L
通讯作者: HELLDEN, L
食蟹猴结扎引起的牙周炎的微生物学。
DOI: 10.1111/j.1600-0765.1981.tb00987.x
发表时间: 1981
影响因子: 3.5
作者:
Kornman,KS;Holt,SC;Robertson,PB
通讯作者: Robertson,PB
急性坏死性溃疡性牙龈炎细菌菌群的电子显微镜观察。
DOI: --
发表时间: 1965
期刊: The Journal of Periodontology
影响因子: --
作者:
Max A. Listgarten
通讯作者: Max A. Listgarten
间接微量血凝法检测口腔厌氧螺旋体之间的免疫学关系
DOI: --
发表时间: 1980
影响因子: 9.4
作者:
E. Jacob;T. Carter;R. Nauman
通讯作者: R. Nauman