ABCD1 p.Gly277Arg
| Predicted by SNAP2: | A: D (80%), C: D (91%), D: D (95%), E: D (95%), F: D (95%), H: D (95%), I: D (95%), K: D (95%), L: D (95%), M: D (95%), N: D (91%), P: D (95%), Q: D (95%), R: D (95%), S: D (91%), T: D (91%), V: D (95%), W: D (95%), Y: D (95%), |
| Predicted by PROVEAN: | A: D, C: D, D: D, E: D, F: D, H: 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, |
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[hide] X-linked adrenoleukodystrophy in Spain. Identifica... Clin Genet. 2005 May;67(5):418-24. Coll MJ, Palau N, Camps C, Ruiz M, Pampols T, Giros M
X-linked adrenoleukodystrophy in Spain. Identification of 26 novel mutations in the ABCD1 gene in 80 patients. Improvement of genetic counseling in 162 relative females.
Clin Genet. 2005 May;67(5):418-24., [PMID:15811009]
Abstract [show]
In this study, we analyzed the ABCD1 gene in 80 X-linked adrenoleukodystrophy (X-ALD) patients from 62 unrelated families. We identified 53 different mutations, of which 26 are novel and two are non-pathogenic sequence variants (L516L and 3'UTR, 2246C/G) that have been previously described. The Spanish population had significant allelic heterogeneity, in which most of the mutations were exclusive to a single family 47/53 (88.7%). Only six mutations (Y174S, G277R, FsE471, R518Q, P543L, and R554H) were found in more than one family. Mutations G277R, P543L, and R554H were the most frequent, each of them being found in three patients (5%). Intra-familiar phenotype variability was observed in most of the families, but in one, with the novel mutation R120P, only the adult mild phenotype was present (five hemizygous family members). We detected 80 heterozygous women by mutation analysis, but only 78 of them showed increased very-long-chain fatty acid levels. In conclusion, this study extends the spectrum of mutations in X-ALD and facilitates the identification of heterozygous females. Our results are also consistent with previous studies reporting the difficulty of predicting genotype-phenotype correlation.
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No. Sentence Comment
6 Only six mutations (Y174S, G277R, FsE471, R518Q, P543L, and R554H) were found in more than one family.
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ABCD1 p.Gly277Arg 15811009:6:27
status: NEW7 Mutations G277R, P543L, and R554H were the most frequent, each of them being found in three patients (5%).
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ABCD1 p.Gly277Arg 15811009:7:10
status: NEW41 The novel mutations included 12 amino acid substitutions [R17H, V102E, R120P, N148Y, G277R (829G> C), L279P, A396T, M501L, K533E, D561V, R617L, and S656F], five stop codon (S108X, S358X, W524X, Q567X, and S572X), one acceptor splice site mutation (IVS1-3C > G), and nine frameshift mutations as a consequence of four deletions [FsS453 (1359delT), FsG473 (1420delA), FsA616 (1847delC), and Fs N390 (1171delTCCTGACAGC)], one insertion [FsW326 (979insT)], and three complex mutations [FsQ38 (115delTG CCTGGCCCCGGCCAGinsGCA, FsF252 (757 delCTCACGGCC insGAGG), and FsL504 (1515 delCACAGinsGCA)].
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ABCD1 p.Gly277Arg 15811009:41:85
status: NEW67 With respect to the 12 missense mutations (R17H, V102E, R120P, N148Y, G277R, L279P, A396T, M501L, K533E, D561V, R617L, and S656F), only in four cases (L279P, K533E, R554H, and S656F mutations), three of which (K533E, R554H, and S656F) affect adenosine triphosphate-binding domain or boundaries, could negative ALDP protein expression be established.
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ABCD1 p.Gly277Arg 15811009:67:70
status: NEW72 Only six mutations (Y174S, G277R, FsE471, R518Q, P543L, and R554H) have been found repeated in patients belonging to different families.
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ABCD1 p.Gly277Arg 15811009:72:27
status: NEW74 In contrast, mutations G277R, P543L, and R554H are the most frequent in the Spanish population, each one accounting for three independent patients (5%) with different phenotypes, as occurs in other populations (for more information: http://www.x-ald.nl).
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ABCD1 p.Gly277Arg 15811009:74:23
status: NEW[hide] Efferent and afferent evoked potentials in patient... Clin Neurol Neurosurg. 2010 Feb;112(2):131-6. Epub 2009 Dec 5. Matsumoto H, Hanajima R, Terao Y, Hamada M, Yugeta A, Shirota Y, Yuasa K, Sato F, Matsukawa T, Takahashi Y, Goto J, Tsuji S, Ugawa Y
Efferent and afferent evoked potentials in patients with adrenomyeloneuropathy.
Clin Neurol Neurosurg. 2010 Feb;112(2):131-6. Epub 2009 Dec 5., [PMID:19963315]
Abstract [show]
OBJECTIVE: This paper investigates efferent and afferent conductions of the central nervous system by various evoked potentials in patients with adrenomyeloneuropathy (AMN). PATIENTS AND METHODS: Ten pure AMN patients without cerebral involvement were studied. Motor evoked potentials (MEPs), somatosensory evoked potentials (SEPs), auditory brainstem response (ABR), and pattern reversal full-field visual evoked potentials (VEPs) were recorded. For MEP recording, single-pulse or double-pulse magnetic brainstem stimulation (BST) was also performed. RESULTS: Abnormal MEP was observed in all ten patients, abnormal SEP in all ten, abnormal ABR in nine, and abnormal VEP in only one. Brainstem latency was measured in three of the seven patients with central motor conduction time (CMCT) prolongation. The cortical-brainstem conduction time was severely prolonged along the normal or mildly delayed brainstem-cervical conduction time in those three patients. CONCLUSIONS: The pattern of normal VEP and abnormal MEP, SEP, ABR is a clinically useful electrophysiological feature for the diagnosis. BST techniques are helpful to detect, functionally, intracranial corticospinal tract involvement, probably demyelination, in pure AMN patients.
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35 Case Age ABCD1 mutation Disease duration (years) Main symptom(s) Brain MRI Loes score Spinal MRI 1 32 Missense (H667N) 1 Spastic gait, pigmentation Normal 0 Normal 2 44 Nonsense (W595X) 1 Spastic gait, sensory disturbance (leg) Normal 0 Atrophy 3 61 N.E. 4 Spastic gait, muscular weakness (leg), sensory disturbance (leg) Normal 0 Normal 4 30 Missense (S290W) 5 Spastic gait, sensory disturbance (leg), dysuria, dyschezia, impotence P, V 2.5 Normal 5 31 Missense (F540S) 5 Spastic gait V 0.5 Normal 6 24 Missense (A616D) 6 Spastic gait, sensory disturbance (leg), dysuria, impotence Normal 0 Normal 7 31 Frameshift (Y281) 8 Spastic gait, sensory disturbance (leg), dyschezia C 0.5 Normal 8 33 Missense (G277R) 8 Spastic gait, dysuria, dyschezia impotence P 2 Atrophy 9 58 N.E. 18 Spastic gait, dysuria Normal 0 Atrophy 10 58 N.E. 19 Spastic gait, impotence Normal 0 Normal MRI: magnetic resonance image, P: pyramidal system, V: visual pathway, C: cerebellum, N.E.: not examined.
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ABCD1 p.Gly277Arg 19963315:35:703
status: NEW33 Case Age ABCD1 mutation Disease duration (years) Main symptom(s) Brain MRI Loes score Spinal MRI 1 32 Missense (H667N) 1 Spastic gait, pigmentation Normal 0 Normal 2 44 Nonsense (W595X) 1 Spastic gait, sensory disturbance (leg) Normal 0 Atrophy 3 61 N.E. 4 Spastic gait, muscular weakness (leg), sensory disturbance (leg) Normal 0 Normal 4 30 Missense (S290W) 5 Spastic gait, sensory disturbance (leg), dysuria, dyschezia, impotence P, V 2.5 Normal 5 31 Missense (F540S) 5 Spastic gait V 0.5 Normal 6 24 Missense (A616D) 6 Spastic gait, sensory disturbance (leg), dysuria, impotence Normal 0 Normal 7 31 Frameshift (Y281) 8 Spastic gait, sensory disturbance (leg), dyschezia C 0.5 Normal 8 33 Missense (G277R) 8 Spastic gait, dysuria, dyschezia impotence P 2 Atrophy 9 58 N.E. 18 Spastic gait, dysuria Normal 0 Atrophy 10 58 N.E. 19 Spastic gait, impotence Normal 0 Normal MRI: magnetic resonance image, P: pyramidal system, V: visual pathway, C: cerebellum, N.E.: not examined.
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ABCD1 p.Gly277Arg 19963315:33:703
status: NEW[hide] Identification of novel SNPs of ABCD1, ABCD2, ABCD... Neurogenetics. 2011 Feb;12(1):41-50. Epub 2010 Jul 27. Matsukawa T, Asheuer M, Takahashi Y, Goto J, Suzuki Y, Shimozawa N, Takano H, Onodera O, Nishizawa M, Aubourg P, Tsuji S
Identification of novel SNPs of ABCD1, ABCD2, ABCD3, and ABCD4 genes in patients with X-linked adrenoleukodystrophy (ALD) based on comprehensive resequencing and association studies with ALD phenotypes.
Neurogenetics. 2011 Feb;12(1):41-50. Epub 2010 Jul 27., [PMID:20661612]
Abstract [show]
Adrenoleukodystrophy (ALD) is an X-linked disorder affecting primarily the white matter of the central nervous system occasionally accompanied by adrenal insufficiency. Despite the discovery of the causative gene, ABCD1, no clear genotype-phenotype correlations have been established. Association studies based on single nucleotide polymorphisms (SNPs) identified by comprehensive resequencing of genes related to ABCD1 may reveal genes modifying ALD phenotypes. We analyzed 40 Japanese patients with ALD. ABCD1 and ABCD2 were analyzed using a newly developed microarray-based resequencing system. ABCD3 and ABCD4 were analyzed by direct nucleotide sequence analysis. Replication studies were conducted on an independent French ALD cohort with extreme phenotypes. All the mutations of ABCD1 were identified, and there was no correlation between the genotypes and phenotypes of ALD. SNPs identified by the comprehensive resequencing of ABCD2, ABCD3, and ABCD4 were used for association studies. There were no significant associations between these SNPs and ALD phenotypes, except for the five SNPs of ABCD4, which are in complete disequilibrium in the Japanese population. These five SNPs were significantly less frequently represented in patients with adrenomyeloneuropathy (AMN) than in controls in the Japanese population (p=0.0468), whereas there were no significant differences in patients with childhood cerebral ALD (CCALD). The replication study employing these five SNPs on an independent French ALD cohort, however, showed no significant associations with CCALD or pure AMN. This study showed that ABCD2, ABCD3, and ABCD4 are less likely the disease-modifying genes, necessitating further studies to identify genes modifying ALD phenotypes.
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59 Results Resequencing DNA microarray-based mutational analysis of ABCD1 gene in Japanese ALD patients All the mutations of ABCD1 were clearly identified using the resequencing DNA microarray system including 26 missense, 2 nonsense, and 12 insertion/deletion mutations G277R (1215 G>A) Patient AScan data of the A C Scan data of the resequencing DNA G T resequencing DNA microarray (TKYPD01) T microarray (TKYPD01) Sequence data of theSequence data of the direct nucleotidedirect nucleotide sequence analysissequence analysis Control AScan data of the A C Scan data of the resequencing DNA G T q g microarray (TKYPD01) T Sequence data of the di l iddirect nucleotide sequence analysis Fig. 2 Scan data of the resequencing DNA microarray and sequence data of the direct nucleotide sequence analysis (upper panel: patient, lower panel: control).
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ABCD1 p.Gly277Arg 20661612:59:268
status: NEW61 Here, a mutation (G277R) was detected, and the signal intensities around the mutation were reduced because of the mismatch of the mutation site.
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ABCD1 p.Gly277Arg 20661612:61:18
status: NEW84 Interestingly, the five previously described SNPs (rs17782508, rs2301345, rs4148077, rs4148078, and rs3742801) that are in complete linkage disequilibrium were significantly less frequently represented in the patients with Japanese AMN than in the controls in the Japanese population (p=0.0468), whereas Table 2 Identified ABCD1 mutations: mutations of ABCD1 that result in amino acid substitutions or in-frame deletions Patient number Phenotype Mutation of ABCD1 Effect of mutation of ABCD1 Position of mutation 13 CCALD 709C>T S108L Loop1 14 CCALD 709C>T S108L Loop1 15 CCALD 829A>G N148S TM2 16 CCALD 1026A>G N214D TM3 17 CCALD 1182G>A G266R Between TM4 and EAA-like 18 CCALD 1324T>Ca L313P Between EAA-like and TM5 19 CCALD 1938C>T R518W Walker A 20 CCALD 1939G>A R518Q Walker A 21 CCALD 2017A>G Q544R Between Walker A and Cons 22 CCALD 2017A>G Q544R Between Walker A and Cons 23 CCALD 2065C>T P560L Between Walker A and Cons 24 CCALD 2065C>T P560L Between Walker A and Cons 25 CCALD Del. 2145-2156 Del. HILQ587-590 Between Walker A and Cons 26 AdultCer Del. 1257-1259 Del.E291 EAA-like 27 AdultCer 2005T>C F540S Between Walker A and Cons 28 AdultCer 2358C>T R660W C-terminal to Walker B 29 AdultCer 2385C>A H667N C-terminal to Walker B 30 AMN-Cer 1146A>C T254P TM4 31 AMN 636C>T P84S TM1 32 AMN 709C>T S108L Loop1 33 AMN 1182G>A G266R Between TM4 and EAA-like 34 AMN 1197G>A E271K Between TM4 and EAA-like 35 AMN 1215G>Aa G277R Between TM4 and EAA-like 36 AMN 1255C>G S290W EAA-like 37 AMN 1581C>T R401W Between TM6 and Walker A 38 AMN 2233C>A A616D Cons 39 AMN 2385C>A H667N C-terminal to Walker B 40 Asymptomatic 2211G>A E609K Cons Amino acid residue numbers in ALDP are based on Mosser et al. [1].
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ABCD1 p.Gly277Arg 20661612:84:1427
status: NEW