UniProtKB/SwissProt variant VAR

Variant information

Variant position:

935

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

Type of variant:

Disease [Disclaimer]

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 Asparagine (N) to Serine (S) at position 935 (N935S, p.Asn935Ser).

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 medium size and polar (N) to small size and polar (S)

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

Variant description:

In HDLD1; moderately decreased protein abundance; highly decreased ATPase activity; highly decreased phospholipid translocase activity.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs28937313 [ dbSNP | Ensembl ]

Sequence information

Variant position:

935

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:

AVDGLALNFYEGQITSFLGH N GAGKTTTMSILTGLFPPTSG

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                         AVDGLALNFYEGQITSFLGHNGAGKTTTMSILTGLFPPTSG

Mouse                         AVDGLALNFYEGQITSFLGHNGAGKTTTMSILTGLFPPTSG

Slime mold                    -----------------------------------------

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
Domain	899 – 1131	ABC transporter 1
Nucleotide binding	933 – 940	ATP 1
Mutagenesis	939 – 939	K -> M. Inhibits ATPase activity; when associated with M-1952. Decreases translocase activity; when associated with M-1952. Does not affect protein subcellular localization in plasma membrane and endosome; when associated with M-1952.

Literature citations

Differential phospholipid substrates and directional transport by ATP-binding cassette proteins ABCA1, ABCA7, and ABCA4 and disease-causing mutants.
Quazi F.; Molday R.S.;
J. Biol. Chem. 288:34414-34426(2013)
Cited for: CATALYTIC ACTIVITY; ACTIVITY REGULATION; MUTAGENESIS OF SER-100; PHE-593; LYS-939; THR-1512 AND LYS-1952; FUNCTION; VARIANTS HDLD1 SER-590; ILE-929; SER-935; ARG-1477 AND TRP-2081; CHARACTERIZATION OF VARIANTS HDLD1 SER-590; ILE-929; SER-935; ARG-1477 AND TRP-2081; VARIANT HDLD2 LEU-2150; CHARACTERIZATION OF VARIANT HDLD2 LEU-2150; SUBCELLULAR LOCATION;

The gene encoding ATP-binding cassette transporter 1 is mutated in Tangier disease.
Bodzioch M.; Orso E.; Klucken J.; Langmann T.; Boettcher A.; Diederich W.; Drobnik W.; Barlage S.; Buechler C.; Porsch-Oezcueruemez M.; Kaminski W.E.; Hahmann H.W.; Oette K.; Rothe G.; Aslanidis C.; Lackner K.J.; Schmitz G.;
Nat. Genet. 22:347-351(1999)
Cited for: VARIANTS HDLD1 SER-590; SER-935 AND VAL-937; VARIANTS ALA-399 AND MET-883;

Double deletions and missense mutations in the first nucleotide-binding fold of the ATP-binding cassette transporter A1 (ABCA1) gene in Japanese patients with Tangier disease.
Guo Z.; Inazu A.; Yu W.; Suzumura T.; Okamoto M.; Nohara A.; Higashikata T.; Sano R.; Wakasugi K.; Hayakawa T.; Yoshida K.; Suehiro T.; Schmitz G.; Mabuchi H.;
J. Hum. Genet. 47:325-329(2002)
Cited for: VARIANTS HDLD1 HIS-935 AND SER-935;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O95477: Variant p.Asn935Ser