ABCC7 p.Thr1036Asn
| ClinVar: |
c.3107C>A
,
p.Thr1036Asn
?
, not provided
|
| CF databases: |
c.3107C>T
,
p.Thr1036Ile
(CFTR1)
D
, He is from the Qazvin province, located between the centre and north-west of Iran.
|
| Predicted by SNAP2: | A: D (63%), C: D (66%), D: D (75%), E: D (80%), F: D (80%), G: D (75%), H: D (71%), I: D (75%), K: D (71%), L: D (80%), M: D (66%), N: D (66%), P: D (75%), Q: D (71%), R: D (71%), S: N (53%), V: D (75%), W: D (85%), Y: D (80%), |
| Predicted by PROVEAN: | A: D, C: D, D: D, E: D, F: D, G: D, H: D, I: D, K: D, L: D, M: D, N: D, P: D, Q: D, R: D, S: D, V: D, W: D, Y: D, |
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[hide] Extensive sequencing of the CFTR gene: lessons lea... Hum Genet. 2005 Dec;118(3-4):331-8. Epub 2005 Sep 28. McGinniss MJ, Chen C, Redman JB, Buller A, Quan F, Peng M, Giusti R, Hantash FM, Huang D, Sun W, Strom CM
Extensive sequencing of the CFTR gene: lessons learned from the first 157 patient samples.
Hum Genet. 2005 Dec;118(3-4):331-8. Epub 2005 Sep 28., [PMID:16189704]
Abstract [show]
Cystic fibrosis (CF) is one of the most common monogenic diseases affecting Caucasians and has an incidence of approximately 1:3,300 births. Currently recommended screening panels for mutations in the responsible gene (CF transmembrane regulator gene, CFTR) do not detect all disease-associated mutations. Our laboratory offers extensive sequencing of the CFTR (ABCC7) gene (including the promoter, all exons and splice junction sites, and regions of selected introns) as a clinical test to detect mutations which are not found with conventional screening. The objective of this report is to summarize the findings of extensive CFTR sequencing from our first 157 consecutive patient samples. In most patients with classic CF symptoms (18/24, 75%), extensive CFTR sequencing confirmed the diagnosis by finding two disease-associated mutations. In contrast, only 5 of 75 (7%) patients with atypical CF had been identified with two CFTR mutations. A diagnosis of CF was confirmed in 10 of 17 (58%) newborns with either positive sweat chloride readings or positive immunoreactive trypsinogen (IRT) screen results. We ascertained ten novel sequence variants that are potentially disease-associated: two deletions (c.1641AG>T, c.2949_2853delTACTC), seven missense mutations (p.S158T, p.G451V, p.K481E, p.C491S, p.H949L, p.T1036N, p.F1099L), and one complex allele ([p.356_A357del; p.358I]). We ascertained three other apparently novel complex alleles. Finally, several patients were found to carry partial CFTR gene deletions. In summary, extensive CFTR gene sequencing can detect rare mutations which are not found with other screening and diagnostic tests, and can thus establish a definitive diagnosis in symptomatic patients with previously negative results. This enables carrier detection and prenatal diagnosis in additional family members.
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No. Sentence Comment
7 We ascertained ten novel sequence variants that are potentially disease-associated: two deletions (c.1641AG>T, c.2949_2853delTACTC), seven missense mutations (p.S158T, p.G451V, p.K481E, p.C491S, p.H949L, p.T1036N, p.F1099L), and one complex allele ([p.356_A357del; p.358I]).
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ABCC7 p.Thr1036Asn 16189704:7:206
status: NEW52 Novel variant CFTR alleles were ascertained in three patients, including c.1641 AG>T, p.G451V, and p.T1036N; these are described below in detail.
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ABCC7 p.Thr1036Asn 16189704:52:101
status: NEW74 DF508/c.546insCTA CF; lung symptoms; PS; 2 sibs with CF NG Pos p.R1066C/c.3272-26 A>G Mild CF 40 115 [p.V562I;p.A1006E]b /p.R1158X CF, FTT 6 Not done DF508/c.1716G>A Classic CF 21 Not done p.R785X/c.2732insA Classic CF, PI 4 Not done DF508/p.R117C Classic CF 2 Not done DF508/p.R75X CF 19 Pos DF508/p.G451Va Mild CF 23 Pos DF508/p.L206W Classic CF 9 150s DF508/p.G542Xc Classic CF 15 Pos p.T1036N/p.T1036Na CF, PS 9 Pos DF508/c.3272-26 A>G Classic CF 33 Not done DF508/p.R117Hc Classic CF 35 Not done DF508/p.A455Ec CF 3 Pos p.G551D/p.Y275X a Novel CFTR variant b Complex CFTR allele c Both mutations are on the ACMG/ACOG panel Table 5 Diagnosis of CF in infants/newborns with abnormal newborn screening results Patient number Genotype Age at sequencing Sex Newborn screen result Sweat chloride concentration (mmol/l)a Phenotype 1 DF508/c.2789+2insA 3 months F Positive sweat test 88,96,89,84 Dx of CF, being treated prophylactically 2 DF508/c.2949del5b 3 months F IRT positive 105 Dx of CF 3 p.G551D/c.1259insA 14 months M Positive sweat test ?
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ABCC7 p.Thr1036Asn 16189704:74:390
status: NEW
In reference to DF508 and 1716G>A. Does this mean these two mutation have resulted in "classic CF"? Does this mean 1716G>A is disease causing?
Gibson75 on 2013-08-12 07:00:25
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Gibson75 on 2013-08-12 07:00:25
81 Of the seven novel missense mutations ascertained, we expect that three (p.G451V, p.T1036N, and p.F1099L) are disease-associated mutations.
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ABCC7 p.Thr1036Asn 16189704:81:84
status: NEW83 The p.T1036N missense mutation in exon 17 is expected to be disease-associated since it was found in a 14-year-old male Hispanic with classic CF.
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ABCC7 p.Thr1036Asn 16189704:83:6
status: NEW84 Homozygosity for p.T1036N in this patient was confirmed by sequencing DNA from parental blood samples; each parent was a heterozygous carrier.
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ABCC7 p.Thr1036Asn 16189704:84:19
status: NEW