ABCMdb

ABCC7 p.Ile1230Thr

CF databases:	c.3689T>C , p.Ile1230Thr (CFTR1) ? , This putative mutation was found by DGGE and identified by DNA sequencing. It does not modify any restriction site.
Predicted by SNAP2:	A: D (75%), C: D (63%), D: D (91%), E: D (85%), F: D (59%), G: D (91%), H: D (85%), K: D (91%), L: N (97%), M: N (87%), N: D (85%), P: D (91%), Q: D (80%), R: D (91%), S: D (80%), T: D (80%), V: N (66%), W: D (85%), Y: D (80%),
Predicted by PROVEAN:	A: D, C: D, D: D, E: D, F: D, G: D, H: D, K: D, L: N, M: N, N: D, P: D, Q: D, R: D, S: D, T: D, V: N, W: D, Y: D,

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Publications
[hide] Complete mutational screening of the cystic fibros... Hum Reprod. 1999 Dec;14(12):3035-40. Pallares-Ruiz N, Carles S, Des Georges M, Guittard C, Arnal F, Humeau C, Claustres M
Complete mutational screening of the cystic fibrosis transmembrane conductance regulator gene: cystic fibrosis mutations are not involved in healthy men with reduced sperm quality.
Hum Reprod. 1999 Dec;14(12):3035-40., [PMID:10601093]

Abstract [show]
Based on the analysis of the most frequent mutations responsible for cystic fibrosis (CF), a higher than expected frequency of CF mutations was recently reported in men with infertility due to reduced sperm quality. To further document whether this condition is associated with severe or mild abnormalities of cystic fibrosis transmembrane conductance regulator (CFTR) functions, we carried out a complete scanning of CFTR sequences using a strategy that detects almost all 850 mutations and 150 polymorphisms reported to date in the CFTR gene. We have investigated a cohort of 56 patients with severe oligoasthenoteratozoospermia (OAT) and 50 controls from southern France for CFTR gene mutations and variations. The frequencies of CF-causing mutations and CFTR variations identified in this OAT sample did not differ significantly from the frequencies found in the normal population. However, we observed a 1.7-fold increase in the proportion of homozygotes for a specific CFTR haplotype (TG11-T7-G1540) in the OAT group (P = 0.025). Our results do not confirm a link between CF mutations and reduced sperm quality. Further studies are needed to substantiate the hypothesis that a combination of variants affecting expression and function of the CFTR protein is associated with male infertility.

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Sentences [show]
No. Sentence Comment
25 I1230T, reported here CFTR severe or mild mutants and/or variants in infertility due for the first time, results from the nucleotide change 3821T/C to altered spermatogenesis. Login to comment
31 Theinformed consent for DNA studies, blood samples were collected change I1230T has not been detected in 960 CF and 300between May and August 1998. Login to comment
56 Four OAT men had a missense mutation on one chromosome, 1540 (M470V) in exon 10 was significantly different between Table I. Characterization of CFTR genotypes in 56 patients with oligoasthenoteratozoospermia (OAT) and in 50 controls Mutations IVS8(T)n 1540A/G Other variations IVS8(TG)n OAT 1 I1230T 7/7 A/G 1655T/G 12/12 1 D1152H 7/7 G/G - 11/11 1 F1052V 7/7 A/A 875ϩ40A/G 10/10 1 M952I 7/7 G/G 4404C/T 11/11 1 - 7/7 G/G 4404C/T 11/11 2 - 7/7 A/G 875ϩ40A/G 10/11 2 - 7/7 A/G 125G/C 11/12 1 - 7/7 A/A 125G/C 12/12 1 - 7/9 A/A 1716G/A, 3041-71G/C ϩ 4002A/Ga 11/10 1 - 7/7 G/G 356G/A, 405ϩ46G/T, 4374ϩ13A/G 11/11 1 - 7/7 A/A 875ϩ40A/G, 3499ϩ37G/A 10/10 1 - 7/9 A/A 1859G/C ϩ 2134C/Ta 10/10 1 - 7/7 A/G 4002A/G 12/12 1 - 7/9 A/G 4002A/G 11/10 1 - 7/7 G/G 2377C/T 11/11 1 - 7/7 A/A 875ϩ40A/G, 1716G/A 10/10 1 - 7/7 G/G 3417A/T 11/11 1 - 7/7 A/G 3417A/T 11/12 24 - 7/7 G/G - 11/11 2 - 7/9 A/G - 10/12 3 - 7/9 A/G - 11/10 2 - 7/9 A/A - 10/10 1 - 9/9 A/A - 10/10 2 - 7/7 A/G - 10/11 1 - 7/7 A/A - 10/10 1 - 7/7 G/G - 8/11 Controls 1 ∆F508 7/9 A/G - 10/12 1 ∆F508 7/9 A/A 875ϩ40A/G 10/11 1 V562L 7/7 A/A 223C/T 10/10 1 G622D 7/9 A/G 3041-71G/C ϩ 4002A/Ga 10/11 1 - 7/7 A/A 3419T/G 10/11 1 - 7/7 G/G 4002A/G 11/11 3 - 7/7 A/G 125G/C 11/11 1 - 7/7 G/G 125G/C 11/11 1 - 7/7 A/A 125G/C 10/11 1 - 7/7 A/A 125G/C 11/12 2 - 7/5 A/G 875ϩ40A/G 11/11 1 - 7/7 A/G 875ϩ40A/G 10/10 1 - 7/7 A/A 875ϩ40A/G, 125G/C 10/11 1 - 7/7 G/G 356G/A 11/11 1 - 7/7 A/G 356G/A 10/10 1 - 9/9 A/A 3041-71G/C ϩ 4002A/Ga 10/10 1 - 7/7 G/G 406-6T/C 11/11 1 - 7/7 A/G 3417A/T 10/11 1 - 7/7 G/G 4404C/T 11/11 1 - 7/7 A/G 1859G/Cϩ2134C/Ta 10/11 11 - 7/7 G/G - 11/11 6 - 7/7 A/G - 10/10 2 - 7/7 A/G - 11/11 1 - 7/7 A/G - 10/11 5 - 7/9 A/G - 10/12 2 - 7/5 G/G - 10/11 aDouble mutant alleles, In bold: mutations or variations previously undescribed. Login to comment