ABCC7 p.Gln552His

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PMID: 16442101 [PubMed] Frelet A et al: "Insight in eukaryotic ABC transporter function by mutation analysis."
No. Sentence Comment
212 Q552H (NBD1) slowed CFTR channel opening without affecting closing, whereas the converse mutation, H1350Q (NBD2) accelerated channel closing without influencing the channel opening rate [68].
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ABCC7 p.Gln552His 16442101:212:0
status: NEW
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PMID: 12508051 [PubMed] Vergani P et al: "On the mechanism of MgATP-dependent gating of CFTR Cl- channels."
No. Sentence Comment
34 Thus, the K1250A mutation dramatically prolonged burst duration, suggesting that hydrolysis at NBD2 might be coupled to burst termination (Carson et al., 1995; Gunderson and Kopito, 1995), whereas the NBD1 mutations K464A, Q552A, and Q552H somewhat slowed channel opening to a burst, suggesting that NBD1 might be a site of ATP interactions governing opening (Carson et al., 1995; Carson and Welsh 1995).
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ABCC7 p.Gln552His 12508051:34:234
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PMID: 9922377 [PubMed] Gadsby DC et al: "Control of CFTR channel gating by phosphorylation and nucleotide hydrolysis."
No. Sentence Comment
465 Functional analyses of CFTR channels bearing point mutations these results from G proteins, introduction of the mutation Q552H into NBD1 of CFTR slowed CFTR channelin these three key regions have begun to clarify the roles of the two NBDs in channel gating.
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ABCC7 p.Gln552His 9922377:465:121
status: NEW
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PMID: 8599650 [PubMed] Carson MR et al: "Structural and functional similarities between the nucleotide-binding domains of CFTR and GTP-binding proteins."
No. Sentence Comment
27 To test these hypotheses we used the excised inside-out patch-clamp technique to study CFTR variants containing the Q552A, Q552H, H1350Q, and H1350A mutations.
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ABCC7 p.Gln552His 8599650:27:123
status: NEW
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72 That is, Q552A and Q552H decreased the rate at A. I I 40 80 120 V (mV) I (pA) 0.50- P0 FIGURE 2 Effect of Q552 and H1350 mutations on CFTR Cl- chan- nels.
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ABCC7 p.Gln552His 8599650:72:19
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77 Open circles, wild-type; open triangles, Q552A; open squares, Q552H; filled circles, H1350A; filled triangles, H1350Q.
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ABCC7 p.Gln552His 8599650:77:62
status: NEW
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