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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P78363: Variant p.Ala1038Val

Retinal-specific phospholipid-transporting ATPase ABCA4
Gene: ABCA4
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Variant information Variant position: help 1038 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LP/P [Disclaimer] The variants are classified into three categories: LP/P, LB/B and US.
  • LP/P: likely pathogenic or pathogenic.
  • LB/B: likely benign or benign.
  • US: uncertain significance

Residue change: help From Alanine (A) to Valine (V) at position 1038 (A1038V, p.Ala1038Val). Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.
Physico-chemical properties: help Change from small size and hydrophobic (A) to medium size and hydrophobic (V) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 0 The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:
  • Lowest score: -4 (low probability of substitution).
  • Highest score: 11 (high probability of substitution).
More information can be found on the following page

Variant description: help In STGD1, FFM and CORD3; frequent mutation; reduced ATP-binding and retinal-stimulated ATP hydrolysis; decreases solubility at 70%; does not affect intracellular vesicle localization; significantly reduces substrate binding in the absence of ATP; reduces basal ATPase activity. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 1038 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 2273 The length of the canonical sequence.
Location on the sequence: help LTVAEHMLFYAQLKGKSQEE A QLEMEAMLEDTGLHHKRNEE The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.
Residue conservation: help The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human                         LTVAEHMLFYAQLKG-KSQEEAQLEMEAMLEDTGLHHKRNEE

Mouse                         LTVAEHILFYAQLKG-RSWEEAQLEMEAMLEDTGLHHKRNE

Bovine                        LTVAEHILFYAQLKG-RSWDKAQLEMEAMLEDTGLHHKRNE

Slime mold                    LTVMEHLEFYAALKGFTNSNQRKVEATKIALEVGLGEKLNA

Sequence annotation in neighborhood: help The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:
  • Type: the type of sequence feature.
  • Positions: endpoints of the sequence feature.
  • Description: contains additional information about the feature.
TypePositionsDescription
Chain 1 – 2273 Retinal-specific phospholipid-transporting ATPase ABCA4
Topological domain 857 – 1376 Cytoplasmic
Domain 929 – 1160 ABC transporter 1
Binding site 1054 – 1054
Disulfide bond 641 – 1490 Interchain
Helix 1035 – 1043



Literature citations
Spectrum of ABCR gene mutations in autosomal recessive macular dystrophies.
Rozet J.-M.; Gerber S.; Souied E.; Perrault I.; Chatelin S.; Ghazi I.; Leowski C.; Dufier J.-L.; Munnich A.; Kaplan J.;
Eur. J. Hum. Genet. 6:291-295(1998)
Cited for: VARIANTS STGD1 TRP-18; CYS-212; HIS-636; MET-1019; VAL-1038; CYS-1108; TRP-1640; SER-1977 AND HIS-2107; VARIANTS FFM PRO-11; PRO-541; VAL-1038; GLU-1091; CYS-1508; PHE-1970 AND ARG-1971; Variation of clinical expression in patients with Stargardt dystrophy and sequence variations in the ABCR gene.
Fishman G.A.; Stone E.M.; Grover S.; Derlacki D.J.; Haines H.L.; Hockey R.R.;
Arch. Ophthalmol. 117:504-510(1999)
Cited for: VARIANTS STGD1 VAL-60; ARG-206; ASN-300; PRO-541; ALA-849; PRO-974; VAL-1038; CYS-1108; LEU-1408; ARG-1488; ASP-1652; PRO-1729; GLU-1961; TRP-2038; TRP-2077; HIS-2107; ARG-2128 AND TYR-2150; A comprehensive survey of sequence variation in the ABCA4 (ABCR) gene in Stargardt disease and age-related macular degeneration.
Rivera A.; White K.; Stoehr H.; Steiner K.; Hemmrich N.; Grimm T.; Jurklies B.; Lorenz B.; Scholl H.P.N.; Apfelstedt-Sylla E.; Weber B.H.F.;
Am. J. Hum. Genet. 67:800-813(2000)
Cited for: VARIANTS STGD1 GLU-60; THR-60; GLU-65; LEU-68; ARG-72; CYS-212; SER-230; SER-247; VAL-328; LYS-471; PRO-541; GLN-572; ARG-607; LYS-635; CYS-653; TYR-764; ARG-765; ALA-901; ILE-959; LYS-1036; VAL-1038; PRO-1063; ASP-1087; CYS-1097; CYS-1108; LEU-1380; LYS-1399; PRO-1430; VAL-1440; HIS-1443; LEU-1486; TYR-1488; MET-1537; PRO-1689; LEU-1705; THR-1733; ARG-1748; PRO-1763; LYS-1885; HIS-1898; GLU-1961; ARG-1975; SER-1977; GLY-2077; TRP-2077 AND VAL-2241; VARIANTS GLN-152; HIS-212; ARG-423; ILE-552; ARG-914; GLN-943; THR-1562; ILE-1868; MET-1921; LEU-1948; PHE-1970; ALA-2059; ASN-2177 AND VAL-2216; Mutations in the ABCA4 (ABCR) gene are the major cause of autosomal recessive cone-rod dystrophy.
Maugeri A.; Klevering B.J.; Rohrschneider K.; Blankenagel A.; Brunner H.G.; Deutman A.F.; Hoyng C.B.; Cremers F.P.M.;
Am. J. Hum. Genet. 67:960-966(2000)
Cited for: VARIANTS CORD3 GLU-65; CYS-212; PRO-541; ALA-863; GLY-863 DEL; VAL-1038; LYS-1122; TYR-1490 AND ASP-1598; Complex inheritance of ABCR mutations in Stargardt disease: linkage disequilibrium, complex alleles, and pseudodominance.
Shroyer N.F.; Lewis R.A.; Lupski J.R.;
Hum. Genet. 106:244-248(2000)
Cited for: VARIANTS STGD1 ASP-340; GLN-572; ALA-863; SER-965; VAL-1038; ALA-1780 AND HIS-1898; VARIANT GLN-943; New ABCR mutations and clinical phenotype in Italian patients with Stargardt disease.
Simonelli F.; Testa F.; de Crecchio G.; Rinaldi E.; Hutchinson A.; Atkinson A.; Dean M.; D'Urso M.; Allikmets R.;
Invest. Ophthalmol. Vis. Sci. 41:892-897(2000)
Cited for: VARIANTS STGD1 CYS-212; ASP-767; ILE-897; VAL-1038; LYS-1087; LYS-1399; GLN-1640 AND GLU-1961; VARIANT HIS-212; Late-onset Stargardt disease is associated with missense mutations that map outside known functional regions of ABCR (ABCA4).
Yatsenko A.N.; Shroyer N.F.; Lewis R.A.; Lupski J.R.;
Hum. Genet. 108:346-355(2001)
Cited for: VARIANTS FFM GLY-339; ALA-863; TRP-943; ARG-991; VAL-1038; CYS-1108; ARG-1488; THR-1562; GLN-1640; PHE-2027; GLN-2030 AND CYS-2106; VARIANTS HIS-212; ARG-423; GLN-943; THR-1148; ILE-1868 AND ILE-2255; Mutations in ABCR (ABCA4) in patients with Stargardt macular degeneration or cone-rod degeneration.
Briggs C.E.; Rucinski D.; Rosenfeld P.J.; Hirose T.; Berson E.L.; Dryja T.P.;
Invest. Ophthalmol. Vis. Sci. 42:2229-2236(2001)
Cited for: VARIANTS STGD1 13-LYS--TRP-15 DEL; TYR-54; LYS-58; VAL-60; GLU-65; GLU-77; HIS-190; PRO-244; ARG-309; CYS-525; CYS-537; PRO-541; PRO-549; ARG-550; GLN-602; ARG-607; MET-643; ASP-767; PRO-797; ARG-821; THR-824; ALA-863; ALA-935; TRP-943; ALA-989; VAL-1038; CYS-1108; LEU-1108; LYS-1122; ARG-1201; GLN-1300; LEU-1380; PRO-1388; ARG-1408; LEU-1486; ARG-1488; TYR-1490; MET-1526; ASN-1532; THR-1562; TRP-1640; LEU-1776; THR-1846; GLU-1961; SER-1977; PHE-2027; GLN-2030; PRO-2035; LEU-2050; CYS-2107; HIS-2107; TRP-2139; ARG-2150 AND TYR-2150; VARIANTS CORD3 GLN-1640 AND ASP-2146; VARIANTS HIS-212; ARG-423; GLN-943; THR-1637; ILE-1868 AND LEU-1948; Denaturing HPLC profiling of the ABCA4 gene for reliable detection of allelic variations.
Stenirri S.; Fermo I.; Battistella S.; Galbiati S.; Soriani N.; Paroni R.; Manitto M.P.; Martina E.; Brancato R.; Allikmets R.; Ferrari M.; Cremonesi L.;
Clin. Chem. 50:1336-1343(2004)
Cited for: VARIANTS STGD1 TRP-18; LYS-96; VAL-108; LEU-143; GLN-152; GLN-223; SER-230; 245-TYR--ASP-2273 DEL; THR-246; GLU-498; PRO-541; ARG-550; GLN-572; 639-TYR--ASP-2273 DEL; SER-641; CYS-653; VAL-690; 700-TRP--ASP-2273 DEL; ASP-767; ARG-821; ALA-863; 876-GLN--ASP-2273 DEL; ILE-897; ASP-954; SER-965; ASP-978; LYS-1022; VAL-1038; ASP-1050; LYS-1087; CYS-1098; PRO-1099; CYS-1108; HIS-1108; LEU-1129; ARG-1203; ASP-1203; ASN-1204; 1300-ARG--ASP-2273 DEL; GLN-1300; TYR-1490; ARG-1512; MET-1526; ASP-1598; 1652-TYR--ASP-2273 DEL; ASP-1762; ASN-1838; TYR-1838; GLU-1961; PHE-1970; PHE-2027; GLN-2030; LEU-2050; HIS-2107; TRP-2139; LEU-2149; TYR-2150; ASN-2177 AND VAL-2241; VARIANTS HIS-212; ARG-423; GLN-943; LEU-1380; ILE-1868 AND LEU-1948; Novel mutations in of the ABCR gene in Italian patients with Stargardt disease.
Passerini I.; Sodi A.; Giambene B.; Mariottini A.; Menchini U.; Torricelli F.;
Eye 24:158-164(2010)
Cited for: VARIANTS STGD1 21-GLN--ASP-2273 DEL; LEU-68; HIS-96; LYS-96; SER-172; CYS-212; LYS-415; PRO-541; 572-ARG--ASP-2273 DEL; LYS-616; CYS-653; VAL-690; 700-TRP--ASP-2273 DEL; ASP-767; ARG-821; ARG-840; MET-931; SER-965; PRO-970; PRO-977; ASP-978; MET-1019; VAL-1038; TRP-1055; GLU-1078; LYS-1087; CYS-1098; 1099-SER--ASP-2273 DEL; CYS-1108; 1177-CYS--ASP-2273 DEL; 1332-GLN--ASP-2273 DEL; LEU-1380; 1408-TRP--ASP-2273 DEL; ILE-1433; 1461-TRP--ASP-2273 DEL; 1479-TRP--ASP-2273 DEL; SER-1484; MET-1526; ASP-1598; ASN-1696; GLU-1961; PHE-1970; SER-1977; 2030-ARG--ASP-2273 DEL; LYS-2096; GLN-2140 AND PRO-2221; Predictors of visual acuity and genotype-phenotype correlates in a cohort of patients with Stargardt disease.
Miraldi Utz V.; Coussa R.G.; Marino M.J.; Chappelow A.V.; Pauer G.J.; Hagstrom S.A.; Traboulsi E.I.;
Br. J. Ophthalmol. 98:513-518(2014)
Cited for: VARIANTS STGD1 CYS-212; PRO-541; LEU-640; ASP-767; VAL-1038; CYS-1108; ARG-1408; GLN-1640; TRP-1640; ASP-1838; GLU-1961 AND HIS-2107; An augmented ABCA4 screen targeting noncoding regions reveals a deep intronic founder variant in Belgian Stargardt patients.
Bauwens M.; De Zaeytijd J.; Weisschuh N.; Kohl S.; Meire F.; Dahan K.; Depasse F.; De Jaegere S.; De Ravel T.; De Rademaeker M.; Loeys B.; Coppieters F.; Leroy B.P.; De Baere E.;
Hum. Mutat. 36:39-42(2015)
Cited for: VARIANTS CORD3 CYS-440; GLY-643; HIS-1145; GLU-1203; LEU-2050 AND ASN-2177; VARIANTS STGD1 HIS-24; GLU-65; SER-247; 431-TRP--ASP-2273 DEL; PRO-541; ARG-607; HIS-653; ALA-863; 1029-GLN--ASP-2273 DEL; VAL-1038; GLN-1300; MET-1537; TRP-1640; PRO-1763; HIS-1898; GLU-1961; PHE-1970; PHE-2027; GLN-2030 AND ARG-2033; VARIANTS RP19 MET-455 AND ILE-552; VARIANTS 681-ARG--ASP-2273 DEL; ASP-767 AND ARG-1591; VARIANT CORD3 GLU-1961; Correlating the Expression and Functional Activity of ABCA4 Disease Variants With the Phenotype of Patients With Stargardt Disease.
Garces F.; Jiang K.; Molday L.L.; Stoehr H.; Weber B.H.; Lyons C.J.; Maberley D.; Molday R.S.;
Invest. Ophthalmol. Vis. Sci. 59:2305-2315(2018)
Cited for: VARIANTS STGD1 ARG-72; PRO-541; VAL-1038; GLU-1091; PRO-1794 AND TRP-2077; CHARACTERIZATION OF VARIANTS STGD1 ARG-72; PRO-541; VAL-1038; GLU-1091; PRO-1794 AND TRP-2077; MUTAGENESIS OF ALA-1357; FUNCTION; SUBCELLULAR LOCATION;
Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.