ABCC7 p.Phe1257Leu
| ClinVar: |
c.3771T>G
,
p.Phe1257Leu
N
, Likely benign
|
| CF databases: |
c.3771T>G
,
p.Phe1257Leu
(CFTR1)
?
, CF patient from Uruguay
|
| Predicted by SNAP2: | A: D (63%), C: N (66%), D: D (91%), E: D (85%), G: D (80%), H: D (80%), I: D (59%), K: D (85%), L: N (93%), M: N (53%), N: D (80%), P: D (91%), Q: D (75%), R: D (85%), S: D (80%), T: D (75%), V: N (53%), W: D (80%), Y: D (71%), |
| Predicted by PROVEAN: | A: N, C: N, D: D, E: D, G: D, H: D, I: N, K: N, L: N, M: N, N: D, P: D, Q: N, R: N, S: N, T: N, V: N, W: N, Y: N, |
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[hide] Complete and rapid scanning of the cystic fibrosis... Hum Genet. 2001 Apr;108(4):290-8. Le Marechal C, Audrezet MP, Quere I, Raguenes O, Langonne S, Ferec C
Complete and rapid scanning of the cystic fibrosis transmembrane conductance regulator (CFTR) gene by denaturing high-performance liquid chromatography (D-HPLC): major implications for genetic counselling.
Hum Genet. 2001 Apr;108(4):290-8., [PMID:11379874]
Abstract [show]
More than 900 mutations and more than 200 different polymorphisms have now been reported in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. Ten years after the cloning of the CFTR gene, the complete scanning of the 27 exons to identify known and novel mutations remains challenging. Rapid accurate identification of mutated alleles is important for prenatal diagnosis, for cascade screening in families at risk of cystic fibrosis (CF) and for understanding the correlation between genotype and phenotype. In this study, we report the successful use of denaturing ion-pair reverse-phase high performance liquid chromatography (D-HPLC) to analyse rapidly the complete coding sequence of the CFTR gene. With 27 pairs of polymerase chain reaction primers, we optimised the temperature conditions required for the analysis of each amplicon and validated thetest conditions on samples from a panel of 1552 CF patients who came from France and other European countries and who had mutations and polymorphisms located in the various melting domains of the gene. D-HPLC identified 415 mutated alleles previously characterised by denaturing gradient gel electrophoresis and DNA sequencing, plus 74 novel mutations reported here. This new technique for screening DNA for sequence variation was extremely accurate (it identified 100% of the CFTR alleles tested so far) and rapid (the complete CFTR gene could be analysed in less than a week). Our approach should reduce the number of untyped CF alleles in populations and thus decrease the residual risk in couples at risk of CF. This technique may be important not only for CF,but also for many other genes with a high frequency of point mutations at a variety of sites.
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No. Sentence Comment
133 296 Table 2 (continued) Exon/ intron Mutant name Nucleic acid change Amino acid change Effect on amino acid sequence Patient 16 S 977 F C to Tat 3062 Ser to Phe at 977 (TCC to TTC) Missense CF patient 17a G 1003 X G to T at 3139 Gly to Stop at 1003 (GGA to TGA) Nonsense CF patient 17a Q 1042 X C to T at 3256 Gln to Stop at 1042 (CAA to TAA) Nonsense CF patient 17b L 1059 L A to G at 3309 Leu to Leu at 1059 (TTA to TTG) Silent Control 17b R 1066 S C to A at 3328 Arg to Ser at 1066 (CGT to AGT) Missense CF patient 17b T 1115 T C to A at 3477 Thr to Thr at 1115 (ACC to ACA) Silent Control 17b 3499+6 A to G A to G at 3499 Splicing CF patient 17b 3499+7 T to G T to G at 3499+7 Splicing Control 18 Delta M 1140 Deletion of 3 pb Frameshift CF patient 18 M 1140 K T to A at 3551 Met to Lys at 1140 (ATG to AAG) Missense Bronchiectasis 19 S 1159 F C to T at 3608 Ser to Phe at 1159 (TCT to TTT) Missense CF patient 19 S 1161 R C to G at 3615 Ser to Arg at 1161 (AGC to AGG) Missense CF patient 19 S 1206 X C to G at 3749 Ser to Stop at 1206 (TCA to TGA) Nonsense CF patient 20 F 1257 L T to G at 3903 Phe to Leu at 1257 (TTT to TTG) Missense CF patient 20 4005+33 A to G A to G at 4005 +33 Splicing Bronchiectasis 21 V1293I G to A at 4009 Val to Ile at 1293 Missense Control 21 4015 Del A Deletion of A at 4015 Frameshift CF patient 21 N 1303 I A to T at 4040 Asn to Ile at 1303 (AAC to ATC) Missense CF patient 21 P 1306 P C to T at 4050 Pro to Pro at 1306 (CCC to CCT) Silent CF patient 21 E 1308 X G to T at 4064 Glu to Stop at 1308 (GAA to TAA) Nonsense CF patient 22 4172 Del GC Deletion of GC at 4172 Frameshift CF patient 22 R 1358 S A to T at 4206 Arg to Ser at 1358 (AGA to AGT) Missense Control 22 I 1366 T T to C at 4229 Ile to Thr at 1366 (ATC to ACC) Missense Control 23 4374+10 T to C T to C at 4374+ 10 Splicing CF patient 24 D 1477 D T to C at 4563 Asp to Asp at 1477 (GAT to GAC) Silent Control This new tool thus greatly improves genetic counselling.
X
ABCC7 p.Phe1257Leu 11379874:133:1101
status: NEW