UniProtKB/SwissProt variant VAR

Variant information

Variant position:

753

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 Leucine (L) to Proline (P) at position 753 (L753P, p.Leu753Pro).

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:

-3

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 rs896160584 [ dbSNP | Ensembl ]

Sequence information

Variant position:

753

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:

YGDTISLSMFVRTLQPSGLL L ALENSTYQYIRVWLERGRLA

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                         YGDTISLSMFVRTLQPSGLLLALENSTYQYIRVWLERGRLA

Mouse                         YGQNFSLSMFVRTRQPLGLLLALENSTYQYVSVWLEHGSLA

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	714 – 885	Laminin G-like 2
Glycosylation	757 – 757	N-linked (GlcNAc...) asparagine
Alternative sequence	710 – 1245	Missing. In isoform 5.

Literature citations

Clinical phenotypes in carriers of Leber congenital amaurosis mutations.
Galvin J.A.; Fishman G.A.; Stone E.M.; Koenekoop R.K.;
Ophthalmology 112:349-356(2005)
Cited for: VARIANTS LCA8 PRO-753; CYS-764 AND TYR-948;

Evaluation of genotype-phenotype associations in Leber congenital amaurosis.
Galvin J.A.; Fishman G.A.; Stone E.M.; Koenekoop R.K.;
Retina 25:919-929(2005)
Cited for: VARIANTS LCA8 ARG-480; TYR-681; PRO-753; CYS-764 AND TYR-948; VARIANT SER-488;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P82279: Variant p.Leu753Pro