ABCD1 p.Ser149Asn
| Predicted by SNAP2: | A: D (85%), C: D (85%), D: D (95%), E: D (95%), F: D (95%), G: D (91%), H: D (95%), I: D (95%), K: D (95%), L: D (95%), M: D (95%), N: D (91%), P: D (95%), Q: D (91%), R: D (95%), T: D (91%), V: D (91%), W: D (95%), Y: D (95%), |
| 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, T: D, V: D, W: D, Y: D, |
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[hide] ABCD1 mutations and the X-linked adrenoleukodystro... Hum Mutat. 2001 Dec;18(6):499-515. Kemp S, Pujol A, Waterham HR, van Geel BM, Boehm CD, Raymond GV, Cutting GR, Wanders RJ, Moser HW
ABCD1 mutations and the X-linked adrenoleukodystrophy mutation database: role in diagnosis and clinical correlations.
Hum Mutat. 2001 Dec;18(6):499-515., [PMID:11748843]
Abstract [show]
X-linked adrenoleukodystrophy (X-ALD) is caused by mutations in the ABCD1 gene, which encodes a peroxisomal ABC half-transporter (ALDP) involved in the import of very long-chain fatty acids (VLCFA) into the peroxisome. The disease is characterized by a striking and unpredictable variation in phenotypic expression. Phenotypes include the rapidly progressive childhood cerebral form (CCALD), the milder adult form, adrenomyeloneuropathy (AMN), and variants without neurologic involvement. There is no apparent correlation between genotype and phenotype. In males, unambiguous diagnosis can be achieved by demonstration of elevated levels of VLCFA in plasma. In 15 to 20% of obligate heterozygotes, however, test results are false-negative. Therefore, mutation analysis is the only reliable method for the identification of heterozygotes. Since most X-ALD kindreds have a unique mutation, a great number of mutations have been identified in the ABCD1 gene in the last seven years. In order to catalog and facilitate the analysis of these mutations, we have established a mutation database for X-ALD ( http://www.x-ald.nl). In this review we report a detailed analysis of all 406 X-ALD mutations currently included in the database. Also, we present 47 novel mutations. In addition, we review the various X-ALD phenotypes, the different diagnostic tools, and the need for extended family screening for the identification of new patients.
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164 X-ALD Mutations Identified in the ABCD1 Gene Allele Exon Mutation Protein Remark fs P42 1 125insC n.d. # fs P84 1 253insC n.d. # E90K 1 268G>A n.d. # S98L 1 293C>T Present S98L 1 293C>T Present R104H 1 311G>A n.d. fs A112 1 337delC Absent # R113C 1 337C>T Present # R113P 1 338G>C n.d. # Q133X 1 397C>T Absent W137X 1 411G>A Absent P143S 1 427C>T n.d. S149N 1 446G>A Present R152S 1 454C>A n.d. R152C 1 454C>T Present R152L 1 455G>T Reduced # S161P 1 481T>C n.d. # R163P 1 488G>C n.d. Y174C 1 521A>G Absent Y174C 1 521A>G n.d. Q177X 1 529C>T Absent Y181C 1 542A>G n.d. fs Y181 1 544ins8bp n.d. # Q195X 1 583C>T n.d. # T198K 1 593C>A n.d. # fs S207 1 621del664bp Absent # SV207-8insAAS 1 622-23ins9bp n.d. # K217E 1 649A>G Present # P218T 1 652C>A n.d. V224E 1 671T>G n.d. # L229P 1 686T>C n.d. L229P 1 686T>C n.d. fs S235 1 706delCGTG n.d. # W242X 1 726G>A Absent G266R 1 796G>A n.d. G266R 1 796G>A n.d. R274W, R280C 1 820C>T, 838C>T n.d. # R285P 1 854G>C n.d. S290X 1 869C>A Absent # E291del 1 871-73delGAG Absent Y296C 1 887A>G n.d. Y296C 1 887A>G n.d. fs E300 IVS1 IVS1+1g>t n.d. # fs E300 IVS1 IVS1-1g>a n.d. # S315X 2 944C>A n.d. # K336M 2 1007A>T n.d. # G343D 2 1028G>A n.d. # R401Q 3 1202G>A Present R401Q 3 1202G>A Present K407X 3 1219A>T n.d. # E427del 4 1279-81delGAA n.d. # Q430X 4 1288C>T n.d. # R464X 4 1390C>T n.d. fs E471 5 1415delAG Absent fs E471 5 1415delAG Absent fs E471 5 1415delAG Absent fs E471 5 1415delAG Absent C511X 6 1533C>A n.d. # R518Q 6 1553G>A Absent fs G528 6 1586-90del Absent # fs Y532 6 1599delG Absent # P543L 6 1628C>T Absent P543L 6 1628C>T Absent fs Q544 6 1628-34duplicated n.d. # fs R545 IVS 6 IVS6+1g>c n.d. # R554H 7 1661G>A Absent fs Q556 7 1670delTG n.d. # (continued) replaced by a pyrimidine (C or T) or vice versa, and transitions, comprising the substitution of one purine by the other, or of one pyrimidine by the other.
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ABCD1 p.Ser149Asn 11748843:164:352
status: NEW[hide] Mutational analysis and genotype-phenotype correla... Arch Neurol. 1999 Mar;56(3):295-300. Takano H, Koike R, Onodera O, Sasaki R, Tsuji S
Mutational analysis and genotype-phenotype correlation of 29 unrelated Japanese patients with X-linked adrenoleukodystrophy.
Arch Neurol. 1999 Mar;56(3):295-300., [PMID:10190819]
Abstract [show]
BACKGROUND: X-linked adrenoleukodystrophy (ALD) is an inherited disease characterized by progressive neurologic dysfunction, occasionally associated with adrenal insufficiency. The classic form of ALD usually has onset in childhood (childhood cerebral ALD), with rapid neurologic deterioration leading to a vegetative state. Adult-onset cerebral ALD also presents with rapidly progressive neurologic dysfunction. Milder phenotypes such as adrenomyeloneuropathy and Addison disease only also have been recognized. Despite discovery of the causative gene, a molecular basis for the diverse clinical presentations remains to be elucidated. OBJECTIVES: To conduct mutational analyses in 29 Japanese patients with ALD from 29 unrelated families, to obtain knowledge of the spectrum of mutations in this gene, and to study genotype-phenotype correlations in Japanese patients. METHODS: The 29 patients comprised 13 patients with childhood cerebral ALD, 11 patients with adult-onset cerebral ALD, and 5 patients with adrenomyeloneuropathy. We conducted detailed mutational analyses of 29 unrelated Japanese patients with ALD by genomic Southern blot analysis and direct nucleotide sequence analysis of reverse transcriptase-polymerase chain reaction products derived from total RNA that was extracted from cultured skin fibroblasts, lymphoblastoid cells, or peripheral blood leukocytes. RESULTS: Three patients with adult-onset cerebral ALD were identified as having large genomic rearrangements. The remaining 26 patients were identified as having 21 independent mutations, including 12 novel mutations resulting in small nucleotide alterations in the ALD gene. Eighteen (69%) of 26 mutations were missense mutations. Most missense mutations involved amino acids conserved in homologous gene products, including PMP70, mALDRP, and Pxa1p. The AG dinucleotide deletion at position 1081-1082, which has been reported previously to be the most common mutation in white patients (12%-17%), was also identified as the most common mutation in Japanese patients (12%). All phenotypes were associated with mutations resulting in protein truncation or subtle amino acid changes. There were no differences in phenotypic expressions between missense mutations involving conserved amino acids and those involving nonconserved amino acids. CONCLUSIONS: There are no obvious correlations between the phenotypes of patients with ALD and their genotypes, suggesting that other genetic or environmental factors modify the phenotypic expressions of ALD.
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87 Review of previous publications indicated that 14 missense mutations are associated exclu- sivelywithAMNorAddisondiseaseonly,includingC696T (R104C),33,34 G697A(R104H),42 C700T(T105I),45 G832A (S149N),35 C918G(Q178E),42 T1045C(L220P),35 C1137T (T254M),37 G1266A(A294T),45 C1551G(R389G),37 G1552A (R389H),33,35 C1638T (R418W),37 C1930T (S515F),38 T2084A(M566K),33 andG2211A(E606K).35,37 Analysisof these mutations may provide important insights into the mechanisms involved in variable phenotypic expressions in ALD.
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ABCD1 p.Ser149Asn 10190819:87:193
status: NEW[hide] Conservation of targeting but divergence in functi... Biochem J. 2011 Jun 15;436(3):547-57. Zhang X, De Marcos Lousa C, Schutte-Lensink N, Ofman R, Wanders RJ, Baldwin SA, Baker A, Kemp S, Theodoulou FL
Conservation of targeting but divergence in function and quality control of peroxisomal ABC transporters: an analysis using cross-kingdom expression.
Biochem J. 2011 Jun 15;436(3):547-57., [PMID:21476988]
Abstract [show]
ABC (ATP-binding cassette) subfamily D transporters are found in all eukaryotic kingdoms and are known to play essential roles in mammals and plants; however, their number, organization and physiological contexts differ. Via cross-kingdom expression experiments, we have explored the conservation of targeting, protein stability and function between mammalian and plant ABCD transporters. When expressed in tobacco epidermal cells, the mammalian ABCD proteins ALDP (adrenoleukodystrophy protein), ALDR (adrenoleukodystrophy-related protein) and PMP70 (70 kDa peroxisomal membrane protein) targeted faithfully to peroxisomes and P70R (PMP70-related protein) targeted to the ER (endoplasmic reticulum), as in the native host. The Arabidopsis thaliana peroxin AtPex19_1 interacted with human peroxisomal ABC transporters both in vivo and in vitro, providing an explanation for the fidelity of targeting. The fate of X-linked adrenoleukodystrophy disease-related mutants differed between fibroblasts and plant cells. In fibroblasts, levels of ALDP in some 'protein-absent' mutants were increased by low-temperature culture, in some cases restoring function. In contrast, all mutant ALDP proteins examined were stable and correctly targeted in plant cells, regardless of their fate in fibroblasts. ALDR complemented the seed germination defect of the Arabidopsis cts-1 mutant which lacks the peroxisomal ABCD transporter CTS (Comatose), but neither ALDR nor ALDP was able to rescue the defect in fatty acid beta-oxidation in establishing seedlings. Taken together, our results indicate that the mechanism for trafficking of peroxisomal membrane proteins is shared between plants and mammals, but suggest differences in the sensing and turnover of mutant ABC transporter proteins and differences in substrate specificity and/or function.
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153 Approximately 60% of X-ALD ABCD1 mutations are missense mutations, 65% of which result in no detectable ALDP, based on IF (immunofluorescence), indicating that they affect protein Table 1 Quantification of ALDP levels in X-ALD fibroblasts ALDP Mutation IF Immunoblot (% of control) p.Arg74Trp Absent 7.5 + - 0.6 p.Arg104Cys Reduced 35 + - 3.0 p.Ser149Asn Present 77 + - 3.0 p.Asp194His Present 60 + - 13.6 p.Leu220Pro Reduced 21.8 + - 5.4 p.Arg389His Present 40.6 + - 3.6 p.Arg554His Absent 1.0 + - 0.5 p.Ser606Leu Present 25 + - 1.5 p.Glu609Gly Absent 2.1 + - 1.3 p.Glu609Lys Absent 1.8 + - 0.9 p.Ala616Thr Absent 4.3 + - 1.7 p.Leu654Pro Absent 1.5 + - 1.3 p.Arg660Trp Absent 1.6 + - 0.8 p.His667Asp Absent 2.9 + - 1.0 p.Arg113fs Absent - Figure 3 Interaction of mammalian ABCD proteins with Arabidopsis Pex19 in vivo Tobacco plants stably expressing CFP-SKL were co-transfected with 35S::ABCD-YFP fusions andNLS-Pex19constructs.Leafepidermalcellswereimagedusingconfocalmicroscopy:(A-D) ALDP-YFP plus NLS-HsPex19; (E-H) ALDP-YFP plus NLS-AtPex19_1; (I-L) ALDR-YFP plus NLS-AtPex19_1.
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ABCD1 p.Ser149Asn 21476988:153:345
status: NEW154 Approximately 60% of X-ALD ABCD1 mutations are missense mutations, 65% of which result in no detectable ALDP, based on IF (immunofluorescence), indicating that they affect protein Table 1 Quantification of ALDP levels in X-ALD fibroblasts ALDP Mutation IF Immunoblot (% of control) p.Arg74Trp Absent 7.5 + - 0.6 p.Arg104Cys Reduced 35 + - 3.0 p.Ser149Asn Present 77 + - 3.0 p.Asp194His Present 60 + - 13.6 p.Leu220Pro Reduced 21.8 + - 5.4 p.Arg389His Present 40.6 + - 3.6 p.Arg554His Absent 1.0 + - 0.5 p.Ser606Leu Present 25 + - 1.5 p.Glu609Gly Absent 2.1 + - 1.3 p.Glu609Lys Absent 1.8 + - 0.9 p.Ala616Thr Absent 4.3 + - 1.7 p.Leu654Pro Absent 1.5 + - 1.3 p.Arg660Trp Absent 1.6 + - 0.8 p.His667Asp Absent 2.9 + - 1.0 p.Arg113fs Absent - Figure 3 Interaction of mammalian ABCD proteins with Arabidopsis Pex19 in vivo Tobacco plants stably expressing CFP-SKL were co-transfected with 35S::ABCD-YFP fusions andNLS-Pex19constructs.Leafepidermalcellswereimagedusingconfocalmicroscopy:(A-D) ALDP-YFP plus NLS-HsPex19; (E-H) ALDP-YFP plus NLS-AtPex19_1; (I-L) ALDR-YFP plus NLS-AtPex19_1.
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ABCD1 p.Ser149Asn 21476988:154:345
status: NEW[hide] Spectrum of mutations in the gene encoding the adr... Am J Hum Genet. 1995 Jan;56(1):44-50. Ligtenberg MJ, Kemp S, Sarde CO, van Geel BM, Kleijer WJ, Barth PG, Mandel JL, van Oost BA, Bolhuis PA
Spectrum of mutations in the gene encoding the adrenoleukodystrophy protein.
Am J Hum Genet. 1995 Jan;56(1):44-50., [PMID:7825602]
Abstract [show]
X-linked adrenoleukodystrophy (ALD) has been associated with mutations in a gene encoding an ATP-binding transporter, which is located in the peroxisomal membrane. Deficiency of the gene leads to impaired peroxisomal beta-oxidation. Systematic analysis of the open reading frame of the ALD gene, using reverse transcriptase-PCR, followed by direct sequencing, revealed mutations in all 28 unrelated kindreds analyzed. No entire gene deletions or drastic promoter mutations were detected. In only one kindred did the mutation involve multiple exons. The other mutations were small alterations leading to missense (13 of 28) or nonsense mutations, a single amino acid deletion, frameshifts, or splice acceptor-site defects. Mutations affecting a single amino acid were concentrated in the region between the third and fourth putative transmembrane domains and in the ATP-binding domain. Mutations were detected in all investigated ALD kindreds, suggesting that this gene is the only gene responsible for X-linked ALD. This overview of mutations is useful in the determination of structurally and functionally important regions and provides an efficient screening strategy for identification of mutations in the ALD gene.
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136 In the remaining mutation, S149N, the ALDP residue is replaced by the corresponding PMP70 residue.
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ABCD1 p.Ser149Asn 7825602:136:27
status: NEW[hide] X-linked adrenoleukodystrophy in women: a cross-se... Brain. 2014 Mar;137(Pt 3):693-706. doi: 10.1093/brain/awt361. Epub 2014 Jan 29. Engelen M, Barbier M, Dijkstra IM, Schur R, de Bie RM, Verhamme C, Dijkgraaf MG, Aubourg PA, Wanders RJ, van Geel BM, de Visser M, Poll-The BT, Kemp S
X-linked adrenoleukodystrophy in women: a cross-sectional cohort study.
Brain. 2014 Mar;137(Pt 3):693-706. doi: 10.1093/brain/awt361. Epub 2014 Jan 29., [PMID:24480483]
Abstract [show]
X-linked adrenoleukodystrophy is the most common peroxisomal disorder. The disease is caused by mutations in the ABCD1 gene that encodes the peroxisomal transporter of very long-chain fatty acids. A defect in the ABCD1 protein results in elevated levels of very long-chain fatty acids in plasma and tissues. The clinical spectrum in males with X-linked adrenoleukodystrophy has been well described and ranges from isolated adrenocortical insufficiency and slowly progressive myelopathy to devastating cerebral demyelination. As in many X-linked diseases, it was assumed that female carriers remain asymptomatic and only a few studies addressed the phenotype of X-linked adrenoleukodystrophy carriers. These studies, however, provided no information on the prevalence of neurological symptoms in the entire population of X-linked adrenoleukodystrophy carriers, since data were acquired in small groups and may be biased towards women with symptoms. Our primary goal was to investigate the symptoms and their frequency in X-linked adrenoleukodystrophy carriers. The secondary goal was to determine if the X-inactivation pattern of the ABCD1 gene was associated with symptomatic status. We included 46 X-linked adrenoleukodystrophy carriers in a prospective cross-sectional cohort study. Our data show that X-linked adrenoleukodystrophy carriers develop signs and symptoms of myelopathy (29/46, 63%) and/or peripheral neuropathy (26/46, 57%). Especially striking was the occurrence of faecal incontinence (13/46, 28%). The frequency of symptomatic women increased sharply with age (from 18% in women <40 years to 88% in women >60 years of age). Virtually all (44/45, 98%) X-linked adrenoleukodystrophy carriers had increased very long-chain fatty acids in plasma and/or fibroblasts, and/or decreased very long-chain fatty acids beta-oxidation in fibroblasts. We did not find an association between the X-inactivation pattern and symptomatic status. We conclude that X-linked adrenoleukodystrophy carriers develop an adrenomyeloneuropathy-like phenotype and there is a strong association between symptomatic status and age. X-linked adrenoleukodystrophy should be considered in the differential diagnosis in women with chronic myelopathy and/or peripheral neuropathy (especially with early faecal incontinence). ABCD1 mutation analysis deserves a place in diagnostic protocols for chronic non-compressive myelopathy.
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141 Table 1 Summary of symptoms and signs of all the female participating in the study Family Age (years) Urinary incontinence Faecal incontinence Gait disorder Sensory complaints Sensory disturbance Spasticity Weakness Pathological reflexes EDSS Mutation ABCD1 protein A 44 No No Yes No No No No Yes 1.0 p.Pro480Thr Absent A 56 Yes Yes No No No No No Yes 1.5 p.Pro480Thr Absent AA 45 No No No No No No No No 0 p.Arg660Trp Absent AA 59 Yes No Yes No No No Yes Yes 3.5 p.Arg660Trp Absent AA 75 Yes No Yes No Yes Yes Yes Yes 6.0 p.Arg660Trp Absent B 42 Yes Yes Yes No Yes Yes Yes Yes 4.0 p.Leu220Pro Reduced B 44 No No No No No No No No 0 p.Leu220Pro Reduced B 44 No No No No No No No No 0 p.Leu220Pro Reduced B 51 No No No Yes Yes No No No 1.0 p.Leu220Pro Reduced B 59 No No No Yes Yes No Yes No 2.0 p.Leu220Pro Reduced C 44 No No No No No No No No 0 p.Gln133* Absent D 38 Yes Yes Yes No Yes Yes Yes Yes 6.0 p.Leu654Pro Absent D 57 Yes No Yes Yes Yes No No Yes 5.5 p.Leu654Pro Absent E 31 No No No No No No No No 0 p.Arg74Trp Absent E 37 No No No No No No No No 0 p.Arg74Trp Absent E 60 No No Yes No Yes Yes Yes Yes 5.5 p.Arg74Trp Absent F 35 No No No No No No No No 0 p.Met1Val Absent G 42 No Yes No No No No No No 1.0 p.Ala245Asp Present H 61 Yes Yes Yes Yes Yes No No Yes 3.5 exon8-10del Absent I 71 No No No No Yes No No Yes 2.0 p.Glu609Lys Absent J 42 No No No No Yes No No Yes 1.5 p.Glu90* Absent K 31 No No No No No No No No 0 p.Pro543Leu Absent K 48 Yes No No No Yes No No Yes 2.5 p.Pro543Leu Absent K 57 No No Yes Yes Yes No Yes Yes 3.5 p.Pro543Leu Absent K 60 Yes No No No Yes No No Yes 3.5 p.Pro543Leu Absent L 51 Yes No Yes No Yes Yes Yes Yes 6.5 p.Ile657del Absent M 22 No No No No No No No No 0 p.Ser149Asn Reduced M 40 No No No No No No No No 0 p.Ser149Asn Reduced N 29 No No No No No No No No 0 p.Arg389His Reduced N 45 Yes No No Yes No No No No 2.0 p.Arg389His Reduced N 57 Yes Yes Yes Yes Yes No No No 3.5 p.Arg389His Reduced N 70 No No Yes No Yes No Yes Yes 3.5 p.Arg389His Reduced O 40 Yes Yes Yes Yes Yes No No Yes 3.5 p.Glu609Lys Absent P 59 Yes Yes Yes Yes Yes Yes Yes Yes 6.0 p.Leu215* Absent Q 39 No Yes Yes No Yes No No No 3.0 p.Val208Trpfs Absent R 28 No No No No No No No No 0 p.Pro480Thr Absent S 35 No No No No No No No No 0 p.His283Tyr Reduced (continued) Correlation studies of X-inactivation with asymptomatic or symptomatic status The distribution of ABCD1 allele-specific expression (which will be referred to as the pattern of X-inactivation) is shown in Fig. 5A.
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ABCD1 p.Ser149Asn 24480483:141:1706
status: NEWX
ABCD1 p.Ser149Asn 24480483:141:1757
status: NEW