UniProtKB/SwissProt variant VAR

Variant information

Variant position:

771

The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:

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:

From Valine (V) to Methionine (M) at position 771 (V771M, p.Val771Met).

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:

Similar physico-chemical property. Both residues are medium size and hydrophobic.

The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:

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:

Genetic variations in ABCA1 define the high density lipoprotein cholesterol level quantitative trait locus 13 (HDLCQ13) [MIM:600046].

Additional information on the polymorphism described.

Variant description:

Associated with HDL cholesterol.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs2066718 [ dbSNP | Ensembl ]

Sequence information

Variant position:

771

The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:

2261

The length of the canonical sequence.

Location on the sequence:

GIIYFTLYLPYVLCVAWQDY V GFTLKIFASLLSPVAFGFGC

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:

The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         GIIYFTLYLPYVLCVAWQDYVGFTLKIFASLLSPVAFGFGC

Mouse                         GIIYFTLYLPYVLCVAWQDYVGFSIKIFASLLSPVAFGFGC

Slime mold                    -------------------------------MSSVAF----

Sequence annotation in neighborhood:

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.

Type	Positions	Description
Chain	1 – 2261	Phospholipid-transporting ATPase ABCA1

Literature citations

Common genetic variation in ABCA1 is associated with altered lipoprotein levels and a modified risk for coronary artery disease.
Clee S.M.; Zwinderman A.H.; Engert J.C.; Zwarts K.Y.; Molhuizen H.O.F.; Roomp K.; Jukema J.W.; van Wijland M.; van Dam M.; Hudson T.J.; Brooks-Wilson A.; Genest J. Jr.; Kastelein J.J.P.; Hayden M.R.;
Circulation 103:1198-1205(2001)
Cited for: VARIANTS LYS-219; ALA-399; MET-771; PRO-774; ASN-776; ILE-825; MET-883; ASP-1172; ARG-1587 AND CYS-1731;

Association of extreme blood lipid profile phenotypic variation with 11 reverse cholesterol transport genes and 10 non-genetic cardiovascular disease risk factors.
Morabia A.; Cayanis E.; Costanza M.C.; Ross B.M.; Flaherty M.S.; Alvin G.B.; Das K.; Gilliam T.C.;
Hum. Mol. Genet. 12:2733-2743(2003)
Cited for: VARIANTS LYS-219; MET-771; ILE-825; MET-883; ASP-1172; PHE-1181 AND ARG-1587;

Screening for functional sequence variations and mutations in ABCA1.
Probst M.C.; Thumann H.; Aslanidis C.; Langmann T.; Buechler C.; Patsch W.; Baralle F.E.; Dallinga-Thie G.M.; Geisel J.; Keller C.; Menys V.C.; Schmitz G.;
Atherosclerosis 175:269-279(2004)
Cited for: VARIANTS TGD LEU-590; ARG-840 AND CYS-1068; VARIANTS MET-771; SER-2163 AND ILE-2244;

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;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O95477: Variant p.Val771Met