UniProtKB/SwissProt variant VAR

Variant information

Variant position:

776

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

Type of variant:

Polymorphism

The variants are classified into three categories: Disease, Polymorphism and Unclassified.

Disease: Variants implicated in disease according to literature reports.
Polymorphism: Variants not reported to be implicated in disease.
Unclassified: Variants with uncertain implication in disease according to literature reports. Evidence against or in favor of a pathogenic role is limited and/or conflicting.

Residue change:

From Lysine (K) to Asparagine (N) at position 776 (K776N, p.Lys776Asn).

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:

Change from large size and basic (K) to medium size and polar (N)

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

BLOSUM score:

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

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:

May be associated with increased risk of ischemic heart disease.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs138880920 [ dbSNP | Ensembl ]

Sequence information

Variant position:

776

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:

TLYLPYVLCVAWQDYVGFTL K IFASLLSPVAFGFGCEYFAL

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                         TLYLPYVLCVAWQDYVGFTLKIFASLLSPVAFGFGCEYFAL

Mouse                         TLYLPYVLCVAWQDYVGFSIKIFASLLSPVAFGFGCEYFAL

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;

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 HDLD1 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;

Mutation in ABCA1 predicted risk of ischemic heart disease in the Copenhagen City Heart Study Population.
Frikke-Schmidt R.; Nordestgaard B.G.; Schnohr P.; Steffensen R.; Tybjaerg-Hansen A.;
J. Am. Coll. Cardiol. 46:1516-1520(2005)
Cited for: VARIANT ASN-776; ASSOCIATION OF VARIANT ASN-776 WITH INCREASED RISK OF ISCHEMIC HEART DISEASE;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O95477: Variant p.Lys776Asn