ABCC7 p.His1402Ala

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PMID: 11022033 [PubMed] Gentzsch M et al: "Localization of sequences within the C-terminal domain of the cystic fibrosis transmembrane conductance regulator which impact maturation and stability."
No. Sentence Comment
40 F1413A/ L1414A/V1415A/I1416A/E1417A, 5Ј-GCTGGAATGCCAACAAGCTGC- GGCCGCAGCAGAGAACAAAGTGCGG-3Ј and 5Ј-CCGCACTTTGTTC- TCTGCTGCGGCCGCAGCTTGTTGGCATTCCAGC-3Ј; F1413A- /L1414A/V1415A/I1416A, 5Ј-GCTGGAATGCCAACAAGCTGCGGCCG- CAGAAGAGAACAAAGTGCGG-3Ј and 5Ј-CCGCACTTTGTTCTCTTC- TGCGGCCGCAGCTTGTTGGCATTCCAGC-3Ј; Q1411A/Q1412A, 5Ј-G- GATAGAAGCAATGCTGGAATGCGCAGCATTTTTGGTCATAGAAG-3 and 5Ј-CTTCTATGACCAAAAATGCTGCGCATTCCAGCATTGCTTCT- ATCC-3; F1413A/L1414A, 5Ј-GCTGGAATGCCAACAAGCTGCGGTCA- TAGAAGAGAACAAAGTGCG-3Ј and 5Ј-CGCACTTTGTTCTCTTCTA- TGACCGCAGCTTGTTGGCATTCCAGC-3Ј; L1414A/V1415A, 5Ј-GCT- GGAATGCCAACAATTTGCGGCCATAGAAGAGAACAAAGTGCGG-3Ј and 5Ј-CCGCACTTTGTTCTCTTCTATGGCCGCAAATTGTTGGCATT- CCAGC-3Ј; V1415A/I1416A, 5Ј-GGAATGCCAACAATTTTTGGCCGCA- GAAGAGAACAAAGTGCGGCAG-3Ј and 5Ј-CTGCCGCACTTTGTTCT- CTTCTGCGGCCAAAAATTGTTGGCATTCC-3Ј; E1417A/E1418A, 5Ј- GCCAACAATTTTTGGTCATAGCAGCGAACAAAGTGCGGCAGTAC- G-3Ј and 5Ј-CGTACTGCCGCACTTTGTTCGCTGCTATGACCAAAAA- TTGTTGGC-3Ј; F1413A, 5Ј-GCAATGCTGGAATGCCAACAAGCTTTG- GTCATAGAAGAGAAC-3Ј and 5Ј-GTTCTCTTCTATGACCAAAGCTT- GTTGGCATTCCAGCATTGC-3Ј; L1414A, 5Ј-GCTGGAATGCCAACAA- TTTGCGGTCATAGAAGAGAACAAAGTGCG-3Ј and 5Ј-CGCACTTTG- TTCTCTTCTATGACCGCAAATTGTTGGCATTCCAGC-3Ј; V1415A, 5Ј- GGAATGCCAACAATTTTTGGCCATAGAAGAGAACAAAGTGCGGC- AG-3Ј and 5Ј-CTGCCGCACTTTGTTCTCTTCTATGGCCAAAAATTGT- TGGCATTCC-3Ј; I1416A, 5Ј-GGAATGCCAACAATTTTTGGTCGCAG- AAGAGAACAAAGTGCGGCAG-3Ј and 5Ј-CTGCCGCACTTTGTTCTC- TTCTGCGACCAAAAATTGTTGGCATTCC-3Ј; E1417A, 5Ј-GCCAACA- ATTTTTGGTCATAGCAGAGAACAAAGTGCGGCAGTACG-3Ј and 5Ј- CGTACTGCCGCACTTTGTTCTCTGCTATGACCAAAAATTGTTGGC- 3Ј; C1400A/E1401A/H1402A/R1403A/I1404A, 5Ј-GCACAGTAATTCTC- GCTGCAGCCGCGGCAGAAGCAATGCTGGAATGCC-3Ј and 5Ј-GGC- ATTCCAGCATTGCTTCTGCCGCGGCTGCAGCGAGAATTACTGTG- C-3Ј; ⌬1400-1404: 5Ј-GCATTTGCTGATTGCACAGTAATTCTCGAAG- CAATGCTGGAATGCC-3Ј and 5Ј-GGCATTCCAGCATTGCTTCGAGA- ATTACTGTGCAATCAGCAAATGC-3Ј; C1400A/E1401A, 5Ј-GATTGC- ACAGTAATTCTCGCTGCACACAGGATAGAAGCAATGC-3Ј and 5Ј-G- CATTGCTTCTATCCTGTGTGCAGCGAGAATTACTGTGCAATC-3Ј; H1402A/R1403A, 5Ј-CAGTAATTCTCTGTGAAGCCGCGATAGAAGC- AATGCTGGAATGCC-3Ј and 5Ј-GGCATTCCAGCATTGCTTCTATCG- CGGCTTCACAGAGAATTAC TG-3Ј; I1404A/E1405A, 5Ј-CTCTGTGA- ACACAGGGCAGCAGCAATGCTGGAATGCCAAC-3Ј and 5Ј-GTTGGC- ATTCCAGCATTGCTGCTGCCCTGTGTTCACAGAG-3Ј, Q1390A/A- 1391A/F1392A/A1393A/D1394A, 5Ј-GAAGAACTCTAAAAGCAGCAG- CTGCTGCTTGCACAGTAATTCTC-3Ј and 5Ј-GAGAATTACTGTGCA- AGCAGCAGCTGCTGCTTTTAGAGTTCTTC-3Ј.
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ABCC7 p.His1402Ala 11022033:40:1835
status: NEW
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ABCC7 p.His1402Ala 11022033:40:2308
status: NEW
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PMID: 12084728 [PubMed] Milewski MI et al: "Aggregation of misfolded proteins can be a selective process dependent upon peptide composition."
No. Sentence Comment
90 Only 25% (52/208) of cells expressing GFP fusion protein bearing single H1402A substitution and 27% (41/153) of R1403A mutants showed intracellular protein accumulation, whereas the corresponding number for the wild type sequence was 91% (132/145).
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ABCC7 p.His1402Ala 12084728:90:72
status: NEW
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93 Cells expressing the double mutant H1402A,R1403A showed no aggregation at all (0/108).
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ABCC7 p.His1402Ala 12084728:93:35
status: NEW
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97 However, the introduction of the ⌬ag deletion or the H1402A,R1403A double mutation significantly decreased the amount of the fusion protein in the insoluble fraction to approximately 31 and 36%, respectively.
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ABCC7 p.His1402Ala 12084728:97:61
status: NEW
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108 B-E, the effect of different mutations within the ag region, including ⌬ag (B), V1397E (C), T1396A (D), and double mutation H1402A,R1403A (E) on the aggregation of C terminus of CFTR fused to GFP (shown in green) in transiently transfected human airway epithelial (IB3-1) cells.
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ABCC7 p.His1402Ala 12084728:108:131
status: NEW
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120 Additionally, the double mutation H1402A,R1403A prevented aggregation of HA-tagged CFTR C terminus (Fig. 2E).
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ABCC7 p.His1402Ala 12084728:120:34
status: NEW
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146 E, lack of aggregation of HA-CFTR 1370-1480 construct carrying the H1402A and R1403A mutations.
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ABCC7 p.His1402Ala 12084728:146:67
status: NEW
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160 Similarly, the non-aggregating GFP-CFTR 1370-1480 H1402A,R1403A construct was included in giant aggregates formed by HA-CFTR 1370-1480 (Fig. 4D).
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ABCC7 p.His1402Ala 12084728:160:50
status: NEW
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195 C, colocalization of the aggregating GFP-CFTR 1370-1480 construct (green) and the non-aggregating HA-CFTR 1370-1480 H1402A,R1403A construct (red) in giant aggregates.
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ABCC7 p.His1402Ala 12084728:195:116
status: NEW
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196 D, co-localization of the non-aggregating GFP-CFTR 1370-1480 H1402A,R1403A construct (green) with the aggregating HA-CFTR 1370-1480 construct (red) in giant aggregates.
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ABCC7 p.His1402Ala 12084728:196:61
status: NEW
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PMID: 20110677 [PubMed] Kloch M et al: "The H-loop in the second nucleotide-binding domain of the cystic fibrosis transmembrane conductance regulator is required for efficient chloride channel closing."
No. Sentence Comment
30 Mutations within the H-loop of NBD2, including the deletion of the entire ag region (Δ1395-1403) and the double alanine substitution H1402A, R1403A (HR→AA), were created in the CFTR-containing pBQ4.7 vector (a gift from J. Rommens and L.-C. Tsui) using the site-directed mutagenesis system "Transformer" (Becton Dickinson).
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ABCC7 p.His1402Ala 20110677:30:139
status: NEW
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PMID: 15642363 [PubMed] Milewski MI et al: "PDZ-binding motifs are unable to ensure correct polarized protein distribution in the absence of additional localization signals."
No. Sentence Comment
25 Also, the introduction of the H1402A and R1403A mutations, reducing the aggregation rate of the CFTR C-terminus, was previously described [9].
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ABCC7 p.His1402Ala 15642363:25:30
status: NEW
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64 A diagram illustrating the structure and subcellular localization of the GFP fusion proteins containing either the full-length CFTR protein or its C-terminal fragment (a.a. 1370-1480) with two alanine substitutions (H1402A and R1403A), eliminating the aggregation of the CFTR C-terminus.
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ABCC7 p.His1402Ala 15642363:64:216
status: NEW
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93 (B) Apical localization of the GFP-CFTR 1370-1480 H1402A, R1403A fusion protein containing the C-terminal M-K-D-T-R-L> motif.
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ABCC7 p.His1402Ala 15642363:93:50
status: NEW
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94 (C) Predominant cytoplasmic distribution of the GFP-CFTR 1370-1480 H1402A, R1403A fusion protein containing the extended Q-K-E-TC-L> PDZ-binding motif of LET23.
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ABCC7 p.His1402Ala 15642363:94:67
status: NEW
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PMID: 23378596 [PubMed] Hunt JF et al: "Cystic fibrosis transmembrane conductance regulator (ABCC7) structure."
No. Sentence Comment
289 Improvements in the yield of soluble protein were obtained by introducing the hydrolytically inactivating H1402A mutation in ATPase active site of hNBD2 plus a series of "solubilizing" mutations on its surface (Q1280E/ Y1307N/W1310H/Q1411D) (X Zhao, S Atwell, JF Hunt, et al., unpubl.).
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ABCC7 p.His1402Ala 23378596:289:106
status: NEW
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291 The H1402A mutation as well as at least some of the "solubilizing" mutations seem likely to stabilize the native conformation of the domain thermodynamically, as observed for the solubilizing surface mutations that improved the stability and yield J.F. Hunt et al. 18 Cite this article as Cold Spring Harb Perspect Med 2012;3:a009514 www.perspectivesinmedicine.org by Cold Spring Harbor Laboratory Press at SEMMELWEIS UNIV OF MEDICINE on December 5, of preparations of hNBD1 (as described above).
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ABCC7 p.His1402Ala 23378596:291:4
status: NEW
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293 Nonetheless, indirect evidence supports the hypothesis that the H1402A mutation stabilizes hNBD2.
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ABCC7 p.His1402Ala 23378596:293:64
status: NEW
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295 Electrophysiological studies of the H1402A and E1371Q mutations in intact human CFTR support these inferences concerning catalytic geometry by showing that the H1402A (Kloch et al. 2010) and E1371Q (Vergani et al. 2005) mutations both greatly increase the lifetime of the open state of the CFTR chloride channel, presumably because they block ATP hydrolysis and stabilize ATP-sandwich heterodimer formed by hNBD1 and hNBD2.
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ABCC7 p.His1402Ala 23378596:295:36
status: NEW
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ABCC7 p.His1402Ala 23378596:295:160
status: NEW
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297 However, despite their similar influence on the gating properties of intact CFTR, the H1402A and E1371Q mutations have dramatically different effects on the stabilityand yield of hNBD2 during purification, with the first greatly improving yield compared to the second (X Zhao, S Atwell, JF Hunt, et al., unpubl.).
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ABCC7 p.His1402Ala 23378596:297:86
status: NEW
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298 In silico energetic calculations suggest that the H1402A mutation stabilizes isolated hNBD2 bound to Mg-ATP, while the E1371Q mutation destabilizes it (P Kumar, C Wang, JF Hunt, et al., unpubl.).
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ABCC7 p.His1402Ala 23378596:298:50
status: NEW
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PMID: 24191035 [PubMed] Bozoky Z et al: "Regulatory R region of the CFTR chloride channel is a dynamic integrator of phospho-dependent intra- and intermolecular interactions."
No. Sentence Comment
117 Q1411D; L1436D; and H1402A) designed by SGX Inc. We find similar patterns of R region binding to NBD2 as for NBD1 (Fig. 1E), identifying NBD2 as a direct binding partner for R region and implying that the NBDs have similar binding properties.
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ABCC7 p.His1402Ala 24191035:117:20
status: NEW
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239 The NBD2 domain of human CFTR (aa 1193-1445, Q1280E; Y1307N; Q1411D; H1402A; and L1436D), a construct with solubilizing mutations designed by SGX, Inc., was encoded on a pET-SUMO plasmid (Invitrogen).
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ABCC7 p.His1402Ala 24191035:239:69
status: NEW
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