ABCC7 p.Gln98His
| ClinVar: |
c.293A>G
,
p.Gln98Arg
?
, not provided
c.292C>T , p.Gln98* D , Pathogenic c.293A>C , p.Gln98Pro ? , not provided |
| CF databases: |
c.293A>C
,
p.Gln98Pro
(CFTR1)
D
, This mutation was found by DHPLC and confirmed by sequencing. The adult male patient, from Southern Sweden, carries deltaF508 on the other chromosome. The patient has high sweat chloride (116 mmol/L), bronchiectasis and CBAVD.
c.292C>T , p.Gln98* D , CF-causing c.293A>G , p.Gln98Arg (CFTR1) D , This mutation was found in one CF patient from Southern France, who carries [delta]F508 on the other gene. It creates a HaeIII restriction site (N : 290 +78 +70 bp), (m: 153 + 137 + 78 + 70 bp) when using the primers 4i5/4i3 from Zielinski. Also reported by Yoshimura & Azuma on 4/01/1000: This mutation was detected in one of the CFTR alleles of a 15-year old Japanese male patient with cystic fibrosis. He is pancreatic insufficient, has CBAVD, and his sweat chloride was high (74 mmol/L). Another mutation was not found despite the thorough evaluation for his entire 27 exons of the CFTR gene. Interestingly, he was heterozygous at the cDNA 125 in 5'UTR (i.e., 125G/125C), and this is the only difference from his healthy sister who is also heterozygous for Q98R mutation, but 125G/125G, suggesting that 125C may be disease-causing. |
| Predicted by SNAP2: | A: D (95%), C: D (95%), D: D (95%), E: D (95%), F: D (95%), G: D (95%), H: D (95%), I: D (95%), K: D (95%), L: D (95%), M: D (95%), N: D (95%), P: D (95%), R: N (78%), 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: N, F: D, G: D, H: D, I: D, K: N, L: D, M: D, N: N, P: D, R: N, S: N, T: D, V: D, W: D, Y: D, |
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[hide] Identification of novel mutations in Arabs with cy... Eur J Pediatr. 2000 May;159(5):303-9. Kambouris M, Banjar H, Moggari I, Nazer H, Al-Hamed M, Meyer BF
Identification of novel mutations in Arabs with cystic fibrosis and their impact on the cystic fibrosis transmembrane regulator mutation detection rate in Arab populations.
Eur J Pediatr. 2000 May;159(5):303-9., [PMID:10834512]
Abstract [show]
The cystic fibrosis transmembrane regulator (CFTR) gene in Arab patients with cystic fibrosis (CF) (sweat chloride > 60 mmol/l) from 61 unrelated families was screened for mutations in exons 3, 4, 5, 7, 10, 11, 16 and 19 and for mutations W1282X, N1303K and 3,849 + 10kbC --> T. Eight novel mutations were identified. These are: in exon 4: a) 425del42 (an in-frame 42 bp deletion that removes 14 amino acids and causes Gln98 --> His at the point of deletion), b) 475G --> T (Glu115 --> Stop) and c) 548A --> T (His139 --> Leu); in intron 5,711 + 1G --> A (splice site mutation); in exon 10, 1548delG (deletion of a "G" nucleotide causing a frameshift mutation that alters the amino acid sequence at residue 473 and results in translation termination at residue 526); in exon 11, a) 1729T --> C (Ph533E --> Leu) and b) 1,811 + 2 (splice site mutation) and finally in exon 19,3361A --> T (Lys1177 --> Stop). All mutations were detected by heteroduplex analysis and identified by sequencing. Of more than 850 known CFTR mutations, only 9 were encountered. The comparative frequencies of the most common mutations are: 1548delG> 1123V = deltaF508 = 3,120 + 1G --> A > H139L. Screening for these five mutations identifies 60% of the CF alleles in Arab populations. The novel mutation 1548delG is the most frequent (17%) among Arabs. CONCLUSION: Novel Arab-specific mutations were identified in the CFTR gene underlying cystic fibrosis. As a result of this study, the CFTR mutation detection rate among Arabs with cystic fibrosis is now comparable to that of other populations.
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No. Sentence Comment
108 aa amino acids CFTR position Mutation DNA Consequence Number of families Number and percentage of alleles Exon 3 355C ® T R75X ± protein truncation 1a [1548delG] 1 (private mutation) Exon 4 425del42 Q98H and deletion of the following 14 aa 1a [?]
X
ABCC7 p.Gln98His 10834512:108:209
status: NEW