UniProtKB/SwissProt variant VAR

Variant information

Variant position:

939

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

Type of variant:

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:

From Cysteine (C) to Tyrosine (Y) at position 939 (C939Y, p.Cys939Tyr).

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 (C) to large size and aromatic (Y)

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

BLOSUM score:

-2

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 LCA8.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs1411345985 [ dbSNP | Ensembl ]

Sequence information

Variant position:

939

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

Protein sequence length:

1406

The length of the canonical sequence.

Location on the sequence:

GKACEEVQWCGFSPCPHGAQ C QPVLQGFECIANAVFNGQSG

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                         GKACEEVQWCGFSPCPHGAQCQPVLQGFECIANAVFNGQSG

Mouse                         GRACEQVQWCQLSPCPPTAECQLLPQGFECIANAVFSGLSR

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	26 – 1406	Protein crumbs homolog 1
Topological domain	26 – 1347	Extracellular
Domain	924 – 960	EGF-like 14
Disulfide bond	928 – 939
Disulfide bond	933 – 948
Alternative sequence	710 – 1245	Missing. In isoform 5.

Literature citations

Identification of novel mutations in patients with Leber congenital amaurosis and juvenile RP by genome-wide homozygosity mapping with SNP microarrays.
den Hollander A.I.; Lopez I.; Yzer S.; Zonneveld M.N.; Janssen I.M.; Strom T.M.; Hehir-Kwa J.Y.; Veltman J.A.; Arends M.L.; Meitinger T.; Musarella M.A.; van den Born L.I.; Fishman G.A.; Maumenee I.H.; Rohrschneider K.; Cremers F.P.; Koenekoop R.K.;
Invest. Ophthalmol. Vis. Sci. 48:5690-5698(2007)
Cited for: VARIANTS LCA8 TYR-939; TYR-948 AND PHE-1332;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P82279: Variant p.Cys939Tyr