ABCC7 p.His199Gln
| ClinVar: |
c.596A>G
,
p.His199Arg
?
, not provided
c.595C>T , p.His199Tyr D , Pathogenic c.597T>G , p.His199Gln ? , not provided |
| CF databases: |
c.595C>T
,
p.His199Tyr
D
, CF-causing ; CFTR1: The mutation was found in a German CF patient who is heterozygous for [delta]F508 and negative for more than 120 other known mutations. The patient was diagnosed by the age of four years because of recurrent pneumonias, but exhibits only mild pancreatic symptoms and borderline swet chloride values. So far, H199Y was not found in a further 28 German and 8 Turkish non-[delta]F508 CF chromosomes.
c.596A>G , p.His199Arg (CFTR1) ? , c.597T>G , p.His199Gln (CFTR1) ? , This alteration does not affect a restriciton site so we are testing an ASO. |
| Predicted by SNAP2: | A: D (95%), C: D (95%), D: D (95%), E: D (95%), F: D (95%), G: D (95%), I: D (95%), K: D (95%), L: D (95%), M: D (95%), N: D (91%), P: D (95%), Q: D (63%), R: D (95%), S: D (95%), T: D (95%), V: D (95%), W: D (95%), Y: D (59%), |
| Predicted by PROVEAN: | A: D, C: D, D: D, E: D, F: D, G: 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] Molecular analysis using DHPLC of cystic fibrosis:... BMC Med Genet. 2004 Apr 14;5:8. D'Apice MR, Gambardella S, Bengala M, Russo S, Nardone AM, Lucidi V, Sangiuolo F, Novelli G
Molecular analysis using DHPLC of cystic fibrosis: increase of the mutation detection rate among the affected population in Central Italy.
BMC Med Genet. 2004 Apr 14;5:8., 2004-04-14 [PMID:15084222]
Abstract [show]
BACKGROUND: Cystic fibrosis (CF) is a multisystem disorder characterised by mutations of the CFTR gene, which encodes for an important component in the coordination of electrolyte movement across of epithelial cell membranes. Symptoms are pulmonary disease, pancreatic exocrine insufficiency, male infertility and elevated sweat concentrations. The CFTR gene has numerous mutations (>1000) and functionally important polymorphisms (>200). Early identification is important to provide appropriate therapeutic interventions, prognostic and genetic counselling and to ensure access to specialised medical services. However, molecular diagnosis by direct mutation screening has proved difficult in certain ethnic groups due to allelic heterogeneity and variable frequency of causative mutations. METHODS: We applied a gene scanning approach using DHPLC system for analysing specifically all CFTR exons and characterise sequence variations in a subgroup of CF Italian patients from the Lazio region (Central Italy) characterised by an extensive allelic heterogeneity. RESULTS: We have identified a total of 36 different mutations representing 88% of the CF chromosomes. Among these are two novel CFTR mutations, including one missense (H199R) and one microdeletion (4167delCTAAGCC). CONCLUSION: Using this approach, we were able to increase our standard power rate of mutation detection of about 11% (77% vs. 88%).
Comments [show]
None has been submitted yet.
No. Sentence Comment
69 The other two mutations that affect the same codon are described: H199Y (727 C to T), found in a German CF patient heterozygous for delF508 and who exhibits only mild pancreatic symptoms and borderline sweat chloride values, and H199Q (729 T to G).
X
ABCC7 p.His199Gln 15084222:69:229
status: NEW[hide] Sensitivity of single-strand conformation polymorp... Hum Mol Genet. 1994 May;3(5):801-7. Ravnik-Glavac M, Glavac D, Dean M
Sensitivity of single-strand conformation polymorphism and heteroduplex method for mutation detection in the cystic fibrosis gene.
Hum Mol Genet. 1994 May;3(5):801-7., [PMID:7521710]
Abstract [show]
The gene responsible for cystic fibrosis (CF) contains 27 coding exons and more than 300 independent mutations have been identified. An efficient and optimized strategy is required to identify additional mutations and/or to screen patient samples for the presence of known mutations. We have tested several different conditions for performing single-stranded conformation polymorphism (SSCP) analysis in order to determine the efficiency of the method and to identify the optimum conditions for mutation detection. Each exon and corresponding exon boundaries were amplified. A panel of 134 known CF mutations were used to test the efficiency of detection of mutations. The SSCP conditions were varied by altering the percentage and cross-linking of the acrylamide, employing MDE (an acrylamide substitute), and by adding sucrose and glycerol. The presence of heteroduplexes could be detected on most gels and in some cases contributed to the ability to distinguish certain mutations. Each analysis condition detected 75-98% of the mutations, and all of the mutations could be detected by at least one condition. Therefore, an optimized SSCP analysis can be used to efficiently screen for mutations in a large gene.
Comments [show]
None has been submitted yet.
No. Sentence Comment
120 Exon 1: S4X (24), 186-13C-G (F£rec et al., pers. comm.); Exon 2: G27X (Shacldeton and Harris, pers. comm.), Q30X (Chilldn aal., pers. comm.), R31L (Zielenski et al., pers. comm.), Q39X (25); Exon 3: 300delA (Malone et al., pers. comm.), W57G (Ferrari et al., pers. comm.), W57X (26), E60X (Malone et al., pers. comm.), R74W (Claustres et al., pers. comm.), R75Q (27), G85E (28), 394delTT (Claustres et al., pers. comm.), L88X (Maceketal., pers. comm.), L88S (Malone et al., pers. comm.), 405 + 1G-A (Dork and Tummler, pers. comm.); Exon 4: E92K (Chillon et al., pers. comm.), E92X (D6rk a al., pers. comm.), P99L (Schwartz and Holmberg, pers. comm.), 441delA (Zielenski et al., pers. comm.), 444delA (29), 457TAT-C- (F£rec et al., pers. comm., (21), Dl 10H (14), Rl 17C (D6rk et al., pers. comm.), Rl 17H (14), A120T (Chillon et al., pers. comm.), 541delC (30), 556delA (28), I148T (Rininsland et al., pers. comm.), Q151X (Shacldeton et al., pers. comm.), 621 + 1C-T (28), 622-2A-C (31); Exon5:G178R (28), 681delC (Zielenski a al., pers. comm.), 711 + 1G-T (28); Exon 6a: H199Y (Dork and Tummler, pers. comm.), H199Q (Dean etal., pers. comm.), L206W (Claustres et al., pers. comm.), Q220X (Shacldeton and Harris, pers. comm., Schwartz and Holmberg, pers. comm.), 852del22 (32); Exon 6b: 977insA (33); Exon7:F311L(34).
X
ABCC7 p.His199Gln 7521710:120:1121
status: NEW