ABCMdb

PMID: 19781595

Bisignano P, Moran O
Molecular dynamics analysis of the wild type and dF508 mutant structures of the human CFTR-nucleotide binding domain 1.
Biochimie. 2010 Jan;92(1):51-7. Epub 2009 Sep 23., [PubMed]

Sentences

No. Mutations Sentence Comment

20 ABCC7 p.Arg553Gln ABCC7 p.His667Arg ABCC7 p.Gly550Glu ABCC7 p.Arg555Lys ABCC7 p.Phe429Ser ABCC7 p.Phe409Leu ABCC7 p.Phe433Leu Structures were obtained by X-ray crystallography, at a resolution of 2.55 Å and 2.30 Å for WT and mutant, respectively. These structures are both characterized by the presence of seven mutations: F409L, F429S, F433L, G550E, R553Q, R555K and H667R which make them more soluble and therefore more easily crystallizable [6,7]. Login to comment 152 ABCC7 p.Arg553Gln ABCC7 p.His667Arg ABCC7 p.Gly550Glu ABCC7 p.Arg555Lys ABCC7 p.Phe429Ser ABCC7 p.Phe409Leu ABCC7 p.Phe433Leu The chosen PDB entries,1XMJ and 2BBO, contain seven mutations, F409L, F429S, F433L, G550E, R553Q, R555K and H667R, that were introduced to the NBD1, wild type and dF508 used for this study, to facilitate the crystallization of the polypeptide [6]. Login to comment 154 ABCC7 p.Gly550Glu ABCC7 p.Arg555Lys ABCC7 p.Phe429Ser It is interesting to notice that several of these mutations (F429S, G550E, R555K), have been identified as ''rescue`` mutations [18-20], that improve the expression of the defective dF508 CFTR. Login to comment