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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O95477: Variant p.Ser364Cys

Phospholipid-transporting ATPase ABCA1
Gene: ABCA1
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Variant information Variant position: help 364 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LB/B 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 Serine (S) to Cysteine (C) at position 364 (S364C, p.Ser364Cys). 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 polar (S) to medium size and polar (C) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -1 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

Polymorphism: help Genetic variations in ABCA1 define the high density lipoprotein cholesterol level quantitative trait locus 13 (HDLCQ13) [MIM:600046]. Additional information on the polymorphism described.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 364 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 2261 The length of the canonical sequence.
Location on the sequence: help ETFYDNSTTPYCNDLMKNLE S SPLSRIIWKALKPLLVGKIL 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                         ETFYDNSTTPYCNDLMKNLESSPLSRIIWKALKPLLVGKIL

Mouse                         DTFYDNSTTPYCNDLMKNLESSPLSRIIWKALKPLLVGKIL

Slime mold                    ------SDTGYLPDLNNTIG---------------LKGGLI

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 – 2261 Phospholipid-transporting ATPase ABCA1
Topological domain 43 – 639 Extracellular
Glycosylation 349 – 349 N-linked (GlcNAc...) asparagine
Mutagenesis 371 – 371 I -> C. No effect on phospholipid and cholesterol efflux or localization to cell membrane. 85-90% reduction in phospholipid and cholesterol efflux but no effect on localization to cell membrane; when associated with C-74 or C-375.
Mutagenesis 371 – 371 I -> E. 85-90% reduction in phospholipid and cholesterol efflux but no effect on localization to cell membrane; when associated with K-74.
Mutagenesis 375 – 375 L -> C. 85-90% reduction in phospholipid and cholesterol efflux but no effect on localization to cell membrane; when associated with C-371.



Literature citations
Genetic variation in ABC transporter A1 contributes to HDL cholesterol in the general population.
Frikke-Schmidt R.; Nordestgaard B.G.; Jensen G.B.; Tybjaerg-Hansen A.;
J. Clin. Invest. 114:1343-1353(2004)
Cited for: VARIANT TGD HIS-1800; VARIANTS LYS-219; CYS-364; MET-771; PRO-774; ASN-776; ILE-825; MET-883; SER-1065; ASP-1172; VAL-1216 AND ARG-1587; INVOLVEMENT IN HDLCQ13;
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.