ABCC7 p.Gly178Glu
| ClinVar: |
c.532G>A
,
p.Gly178Arg
D
, Pathogenic
c.533G>A , p.Gly178Glu ? , not provided |
| CF databases: |
c.532G>A
,
p.Gly178Arg
D
, CF-causing ; CFTR1: The mutation was found on the mother's CF chromosome in family #50; the other mutation in this family is [delta]F508. We have not found another example so far after screening 61 CF chromosomes (including 1 from group 4 and 2 other from group 5) and 54 N chromosomes (including 4 group 4 and 5 group 5). To detect this mutation, genomic DNA may be amplified by PCR with primers 515' and 513'.
c.533G>A , p.Gly178Glu (CFTR1) D , The patient inherited this mutation from her father. This mutation was not found in a sample of 50 Czech random controls and was not found in other screened CF patients with yet unidentified alleles. The other allele in trans is F508del. |
| Predicted by SNAP2: | A: D (91%), C: D (91%), D: D (91%), E: D (95%), F: D (95%), H: D (95%), I: D (95%), K: D (95%), L: D (95%), M: D (95%), N: D (95%), P: D (95%), Q: D (95%), R: D (66%), S: D (95%), T: D (95%), V: D (95%), W: D (95%), Y: D (95%), |
| Predicted by PROVEAN: | A: D, C: D, D: D, E: D, F: D, H: D, I: D, K: D, L: D, M: D, N: D, P: D, Q: D, R: D, S: D, T: D, V: D, W: D, Y: D, |
[switch to compact view]
Comments [show]
None has been submitted yet.
[hide] Distribution of CFTR mutations in the Czech popula... J Cyst Fibros. 2013 Sep;12(5):532-7. doi: 10.1016/j.jcf.2012.12.002. Epub 2012 Dec 29. Krenkova P, Piskackova T, Holubova A, Balascakova M, Krulisova V, Camajova J, Turnovec M, Libik M, Norambuena P, Stambergova A, Dvorakova L, Skalicka V, Bartosova J, Kucerova T, Fila L, Zemkova D, Vavrova V, Koudova M, Macek M, Krebsova A, Macek M Jr
Distribution of CFTR mutations in the Czech population: positive impact of integrated clinical and laboratory expertise, detection of novel/de novo alleles and relevance for related/derived populations.
J Cyst Fibros. 2013 Sep;12(5):532-7. doi: 10.1016/j.jcf.2012.12.002. Epub 2012 Dec 29., [PMID:23276700]
Abstract [show]
BACKGROUND: This two decade long study presents a comprehensive overview of the CFTR mutation distribution in a representative cohort of 600 Czech CF patients derived from all regions of the Czech Republic. METHODS: We examined the most common CF-causing mutations using the Elucigene CF-EU2v1 assay, followed by MLPA, mutation scanning and/or sequencing of the entire CFTR coding region and splice site junctions. RESULTS: We identified 99.5% of all mutations (1194/1200 CFTR alleles) in the Czech CF population. Altogether 91 different CFTR mutations, of which 20 were novel, were detected. One case of de novo mutation and a novel polymorphism was revealed. CONCLUSION: The commercial assay achieved 90.7%, the MLPA added 1.0% and sequencing increased the detection rate by 7.8%. These comprehensive data provide a basis for the improvement of CF DNA diagnostics and/or newborn screening in our country. In addition, they are relevant to related Central European populations with lower mutation detection rates, as well as to the sizeable North American "Bohemian diaspora".
Comments [show]
None has been submitted yet.
No. Sentence Comment
48 [125CNT]+[223CNT] S42F/R75X# Ex2/Ex3 1 0.08 44. c.164+1GNA 296+1GNA In2 1 0.08 45. c.274GNA E92K# Ex4 1 0.08 46. c.349CNT R117C*# Ex4 1 0.08 47. c.509GNA R170H Ex5 1 0.08 48. c.533GNA G178E Ex5 1 0.08 49. c.579+1GNT 711+1GNT*# In5 1 0.08 50. c.902ANG Y301C Ex7 1 0.08 51. c.1040GNA R347H*# Ex7 1 0.08 52. c.1114CNT Q372X Ex7 1 0.08 53. c.1117-1GNA 1249-1GNA In7 1 0.08 54. c.1209+1GNA 1341+1GNA# In8 1 0.08 55. c.1519_1521delATC I507del*# Ex10 1 0.08 56. c.1654CNT Q552X# Ex11 1 0.08 57. c.1673TNC L558S# Ex11 1 0.08 58. c.1679+1GNC 1811+1GNC In11 1 0.08 59. c.1687TNC Y563H Ex12 1 0.08 60. c.1753GNT E585X# Ex12 1 0.08 61. c.1766+1GNC 1898+1GNC In12 1 0.08 62. c.2044delA 2176delA Ex13 1 0.08 63. c.2051_2052delAAinsG 2183delAANG# Ex13 1 0.08 64. c.2052delA 2184delA*# Ex13 1 0.08 3.
X
ABCC7 p.Gly178Glu 23276700:48:184
status: NEW[hide] Full-open and closed CFTR channels, with lateral t... Cell Mol Life Sci. 2015 Apr;72(7):1377-403. doi: 10.1007/s00018-014-1749-2. Epub 2014 Oct 7. Mornon JP, Hoffmann B, Jonic S, Lehn P, Callebaut I
Full-open and closed CFTR channels, with lateral tunnels from the cytoplasm and an alternative position of the F508 region, as revealed by molecular dynamics.
Cell Mol Life Sci. 2015 Apr;72(7):1377-403. doi: 10.1007/s00018-014-1749-2. Epub 2014 Oct 7., [PMID:25287046]
Abstract [show]
In absence of experimental 3D structures, several homology models, based on ABC exporter 3D structures, have provided significant insights into the molecular mechanisms underlying the function of the cystic fibrosis transmembrane conductance regulator (CFTR) protein, a chloride channel whose defects are associated with cystic fibrosis (CF). Until now, these models, however, did not furnished much insights into the continuous way that ions could follow from the cytosol to the extracellular milieu in the open form of the channel. Here, we have built a refined model of CFTR, based on the outward-facing Sav1866 experimental 3D structure and integrating the evolutionary and structural information available today. Molecular dynamics simulations revealed significant conformational changes, resulting in a full-open channel, accessible from the cytosol through lateral tunnels displayed in the long intracellular loops (ICLs). At the same time, the region of nucleotide-binding domain 1 in contact with one of the ICLs and carrying amino acid F508, the deletion of which is the most common CF-causing mutation, was found to adopt an alternative but stable position. Then, in a second step, this first stable full-open conformation evolved toward another stable state, in which only a limited displacement of the upper part of the transmembrane helices leads to a closure of the channel, in a conformation very close to that adopted by the Atm1 ABC exporter, in an inward-facing conformation. These models, supported by experimental data, provide significant new insights into the CFTR structure-function relationships and into the possible impact of CF-causing mutations.
Comments [show]
None has been submitted yet.
No. Sentence Comment
355 Second, CF-causing mutations in the ICLs involve residues located at the base of the four-helix bundle assembling the four internal ICL helices (symmetric positions in ICL1 (G178E G178R) and ICL3 (G970R), which cannot be substituted by any other amino acid because of steric hindrance reasons (Fig. 7c; Online Resource 2).
X
ABCC7 p.Gly178Glu 25287046:355:174
status: NEW