ABCA1 p.Phe2163Ser
| Predicted by SNAP2: | A: D (66%), C: D (63%), D: D (85%), E: D (75%), G: D (80%), H: D (59%), I: N (53%), K: D (75%), L: N (82%), M: N (61%), N: D (71%), P: D (85%), Q: D (71%), R: D (71%), S: D (66%), T: D (66%), V: D (59%), W: D (71%), Y: D (53%), |
| Predicted by PROVEAN: | A: D, C: D, D: D, E: D, G: 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] Screening for functional sequence variations and m... Atherosclerosis. 2004 Aug;175(2):269-79. Probst MC, Thumann H, Aslanidis C, Langmann T, Buechler C, Patsch W, Baralle FE, Dallinga-Thie GM, Geisel J, Keller C, Menys VC, Schmitz G
Screening for functional sequence variations and mutations in ABCA1.
Atherosclerosis. 2004 Aug;175(2):269-79., [PMID:15262183]
Abstract [show]
Mutations in the ATP-binding cassette 1 transporter gene (ABCA1) are responsible for the genetic HDL-deficiency syndromes, which are characterized by severely diminished plasma HDL-C levels and a predisposition to cardiovascular disease and splenomegaly. The ABCA1 gene contains 50 exons and codes for a 2261-amino acid long membrane protein that facilitates phospholipid and cholesterol transport. Several mutations have been identified so far as responsible either for Tangier disease or for reduced HDL levels. We have selectively looked for additional polymorphisms in functionally relevant regions of the gene in cohorts constituted of individuals with altered HDL levels as well as healthy blood donors and octogenarians, and screened for mutations in the complete coding region of selected individuals with extremely aberrant HDL levels. In the promoter region, which is important for regulation of gene expression, we have identified several polymorphisms including one VNTR polymorphism, located at a putative ZNF202 binding site, which displayed different binding of ZNF202 in an electromobility shift assay. Three novel SNPs were discovered in the promoter region (G1047C, C1152T and C1440T). The prevalence of exchange G1047C (G-395C) was found significantly increased in probands with low HDL compared to probands with high HDL. Exchanges C1152T (C-290T) and C1440T (C-7T) were significantly more frequent in the cohort with low HDL compared to healthy blood donors and octogenarians. In the C-terminal part of ABCA1, known to interact with other proteins, two novel sequence variations (F2163S and V2244I) have been found in one phenotype related to cardiovascular disease, but none in the aforementioned cohorts. In one individual with extremely high HDL levels, the V771M polymorphism was found in a homozygous state. In patients with HDL deficiency, three novel mutations have been identified (W590L, W840R and R1068C). To facilitate further research in ABCA1 sequence variations and expand our understanding of their effects, we are introducing a webpage archive (http://www.abca1-mutants.all.at) containing all sequence variations reported in ABCA1 so far. This webpage provides a more recent and detailed summary of sequence variations and mutations in ABCA1 than existing databases and should also be of interest for molecular diagnosis of ABCA1-related HDL deficiency.
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No. Sentence Comment
8 In the C-terminal part of ABCA1, known to interact with other proteins, two novel sequence variations (F2163S and V2244I) have been found in one phenotype related to cardiovascular disease, but none in the aforementioned cohorts.
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ABCA1 p.Phe2163Ser 15262183:8:103
status: NEW123 These Table 1 Primers and probes for TaqMan analysis of novel polymorphisms in the coding region of ABCA1 W590L (G2082C) TM-W590L-f 5 -AGC TGA CCC CTT TGA GGA CAT-3 TM-W590L-r 5 -CTC CAC CAC ATC CTG CAA GTA G-3 TM-W590-vic 5 -VIC-CCC CCC ¯ AGA CGT A-MGB-NFQ-3 TM-L590-fam 5 -FAM-CCC CCG ¯ AGA CGT A-MGB-NFQ-3 V771M (G2624A) TM-V771M-f 5 -GGC ATC ATC TAC TTC ACG CTG TA-3 TM-V771M-r 5 -CAG AGG TAC TCA CAG CGA AGA TCT T-3 TM-V771-vic 5 -FAM-TGT GAA GCC CAC ¯ GTA G-MGB-NFQ-3 TM-M771-fam 5 -VIC-TGA AGC CCA T ¯ GT AGT C-MGB-NFQ-3 W840R (T2831A) TM-W840R-f 5 -GCT GTT TGA CAC CTT CCT CTA TGG-3 TM-W840R-r 5 -TGT ACC TGG AAA GAC AGC CTC AA-3 TM-W840-vic 5 -VIC-TGT ACC A ¯ GG TCA TCA C-MGB-NFQ-3 TM-R840-fam 5 -FAM-TGT ACC T ¯ GG TCA TCA C-MGB-NFQ-3 P2150L (C6762T) TM-P2150L-f 5 -TTC AGG TTT GGA GAT GGT TAT ACA ATA G-3 TM-P2150L-r 5 -GAA ATG CAA GTC CAA AGA AAT CCT-3 TM-P2150-vic 5 -VIC-CAA CCC ¯ GGA CCT GA-MGB-NFQ-3 TM-L2150-fam 5 -FAM-CAA CCT ¯ GGA CCT GAA-MGB-NFQ-3 F2163S (T6801C) TM-F2163S-f 5 -AAG CCT GTC CAG GAT TTC TTT G-3 TM-F2163S-r 5 -CAT GTT CCG GTG TTT CTC TTT TAG-3 TM-F2163-vic 5 -VIC-CCA GGA A ¯ AT GCA AGT C-MGB-NFQ-3 TM-S2163-fam 5 -FAM-CAG GAG ¯ ATG CAA GTC-MGB-NFQ-3 V2244I (G7043A) TM-V2244I-f 5 -ATG ATG ACC ACT TAA AAG ACC TCT CA-3 TM-V2244I-r 5 -GCT TTC TTT CAC TTT CTC ATC CTG TAG-3 TM-V2244-vic 5 -VIC-TGG ACG ¯ TTG CAG TTC-MGB-NFQ-3 TM-I2244-fam 5 -FAM-AGT AGT GGA CA ¯ T TGC-MGB-NFQ-3 Positions of sequence variations refer to accession number NM005502.
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ABCA1 p.Phe2163Ser 15262183:123:1009
status: NEWX
ABCA1 p.Phe2163Ser 15262183:123:1017
status: NEWX
ABCA1 p.Phe2163Ser 15262183:123:1028
status: NEWX
ABCA1 p.Phe2163Ser 15262183:123:1036
status: NEWX
ABCA1 p.Phe2163Ser 15262183:123:1075
status: NEWX
ABCA1 p.Phe2163Ser 15262183:123:1084
status: NEW192 In addition, patient D was heterozygous for a novel sequence variation in exon 22, Table 5 Sequence variations found in ABCA1 and phenotypes of patients Exon Amino acid Nucleotide Position in DNA (AF275948) Position in mRNA (NM005502) Found in patient with 14 W590L TG ¯ G → TC ¯ G 98481 2082 HDL deficiency (C) 16 V771M G ¯ TG → A ¯ TG 102555 2624 Increased HDL (A) 17 W840R T ¯ GG → A ¯ GG 103822 2831 HDL deficiency (B) 22 R1068C C ¯ GC → T ¯ GC 109904 3515 HDL deficiency (D) 49 F2163S TT ¯ T → TC ¯ T 143483 6801 Low HDL and G6PD deficiency (E) 50 V2244I G ¯ TT → A ¯ TT 144665 7043 A C ABC B S A N ABC B S 44 23 703 681 718 740 769 747 774-794 822 842 1368 1346 1655 1677 1724 1702 1737 1759 1790 1768 1848 1870 642 660 W590L R1068C F2163S P2150L V2244I V771M W840R Fig. 4.
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ABCA1 p.Phe2163Ser 15262183:192:542
status: NEWX
ABCA1 p.Phe2163Ser 15262183:192:554
status: NEWX
ABCA1 p.Phe2163Ser 15262183:192:826
status: NEWX
ABCA1 p.Phe2163Ser 15262183:192:844
status: NEW202 Several sequence variations were identified, with two of them located within exon 49 (F2163S) and exon 50 (V2244I) near the COOH-terminus of ABCA1.
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ABCA1 p.Phe2163Ser 15262183:202:86
status: NEW203 Analysis of the rest of the family focusing on the identified polymorphisms revealed that the mother is heterozygous for F2163S and the father is heterozygous for V2244I.
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ABCA1 p.Phe2163Ser 15262183:203:121
status: NEW230 However, the sequence variations found in patient E with G6PD deficiency (F2163S, V2244I) are located in exons 49 and 50, respectively, and these mutations may account for the low-HDL cholesterol.
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ABCA1 p.Phe2163Ser 15262183:230:74
status: NEW[hide] The carboxyterminus of the ATP-binding cassette tr... Biochem Biophys Res Commun. 2002 May 3;293(2):759-65. Buechler C, Boettcher A, Bared SM, Probst MC, Schmitz G
The carboxyterminus of the ATP-binding cassette transporter A1 interacts with a beta2-syntrophin/utrophin complex.
Biochem Biophys Res Commun. 2002 May 3;293(2):759-65., [PMID:12054535]
Abstract [show]
Recent work identified ABCA1 as the major regulator of plasma HDL-cholesterol responsible for the removal of excess choline-phospholipids and cholesterol from peripheral cells and tissues. ABCA1 function may depend on the association with heteromeric proteins and to identify these candidates a human liver yeast two-hybrid library was screened with the carboxyterminal 144 amino acids of ABCA1. Beta2-syntrophin was found to interact with ABCA1 and the C-terminal five amino acids of ABCA1 proned to represent a perfect tail for binding to syntrophin PDZ domains. Immunoprecipitation further confirmed the association of ABCA1 and beta2-syntrophin and in addition utrophin, known to couple beta2-syntrophin and its PDZ ligands to the F-actin cytoskeleton, was identified as a constituent of this complex. ABCA1 in the plasmamembrane of human macrophages was found to be partially associated with Lubrol rafts and effluxed choline-phospholipids involve these microdomains. Beta2-syntrophin does not colocalize in these rafts indicating that beta2-syntrophin may participate in the retaining of ABCA1 in cytoplasmic vesicles and for the targeting of ABCA1 to plasmamembrane microdomains when ABCA1 is released from beta2-syntrophin.
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No. Sentence Comment
85 (1) R2144X causing the Tangier disease [32]; (2) P2151L rare single nucleotide polymorphism (own unpublished results); (3) F2163S; (5) V2244I associated with low HDL, hypertrophic cardiomyopathy, and disturbed glucose metabolism; (4) 4 bp insertion at nucleotide 6513 causing a premature stop and Tangier disease [20].
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ABCA1 p.Phe2163Ser 12054535:85:123
status: NEW84 (1) R2144X causing the Tangier disease [32]; (2) P2151L rare single nucleotide polymorphism (own unpublished results); (3) F2163S; (5) V2244I associated with low HDL, hypertrophic cardiomyopathy, and disturbed glucose metabolism; (4) 4 bp insertion at nucleotide 6513 causing a premature stop and Tangier disease [20].
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ABCA1 p.Phe2163Ser 12054535:84:123
status: NEW