ABCB1 p.Glu255Ala
| Predicted by SNAP2: | A: D (80%), C: D (80%), D: D (53%), F: D (85%), G: D (85%), H: D (85%), I: D (85%), K: D (91%), L: D (85%), M: D (85%), N: D (80%), P: D (91%), Q: D (75%), R: D (91%), S: D (85%), T: D (85%), V: D (85%), W: D (91%), Y: D (85%), |
| Predicted by PROVEAN: | A: D, C: D, D: N, F: D, G: D, H: D, I: D, K: D, L: D, M: D, N: D, P: D, Q: N, R: D, S: D, T: D, V: D, W: D, Y: D, |
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[hide] A salt bridge in intracellular loop 2 is essential... Biochemistry. 2013 May 14;52(19):3194-6. doi: 10.1021/bi400425k. Epub 2013 May 3. Loo TW, Clarke DM
A salt bridge in intracellular loop 2 is essential for folding of human p-glycoprotein.
Biochemistry. 2013 May 14;52(19):3194-6. doi: 10.1021/bi400425k. Epub 2013 May 3., [PMID:23634976]
Abstract [show]
There is no high-resolution structure of the human P-glycoprotein (P-gp, ABCB1) drug pump. Homology models based on the crystal structures of mouse and Caenorhabditis elegans P-gps show extensive contacts between intracellular loop 2 (ICL2, in the first transmembrane domain) and the second nucleotide-binding domain. Human P-gp modeled on these P-gp structures yields different ICL2 structures. Only the model based on the C. elegans P-gp structure predicts the presence of a salt bridge. We show that the Glu256-Arg276 salt bridge was critical for P-gp folding.
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No. Sentence Comment
31 It was found that the E255A, K271A, K272A, E273A, and E275A mutants were different from the E256A and R276A mutants because they yielded mature 170 kDa P-gp as their major product (Figure 1E).
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ABCB1 p.Glu255Ala 23634976:31:22
status: NEW