Structure of DsbC from Haemophilus influenzae.
Structure of DsbC from Haemophilus influenzae.
复制标题
流感嗜血杆菌 DsbC 的结构。
DOI:
10.1107/s0907444904014593
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
Robertus,JonD
中科院分区:
文献类型:
--
作者:
Zhang,Man;Monzingo,ArthurF;Segatori,Laura;Georgiou,George;Robertus,JonD
Bacterial DsbC proteins are involved in rearranging or reducing mismatched disulfide bonds folding within the periplasm. The X-ray structure of the enzyme from Haemophilus influenzae has been solved and compared with the known structure of the Escherichia coli protein. The proteins act as V-shaped dimers with a large cleft to accommodate substrate proteins. The dimers are anchored by a small N-terminal domain, but have a flexible linker region which allows the larger C-terminal domain, with its reactive sulfhydryls, to clamp down on substrates. The overall folds are very similar, but the comparison shows a wider range of hinge motions than previously thought. The crystal packing of the H. influenzae protein allows the movement of the N-terminal domain with respect to the C-terminal domain through motions in the flexible hinge, generating high thermal parameters and unusually high anisotropy in the crystallographic data.
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DOI:
10.1016/s0378-4347(00)80432-6
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Journal of chromatography
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