UniProtKB/Swiss-Prot Q9H342: Variant p.Cys100Tyr

• Variant information
• Sequence information
• Literature citations
• All

Variant information

Variant position: 100 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 Cysteine (C) to Tyrosine (Y) at position 100 (C100Y, p.Cys100Tyr). 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
Polymorphism: A nonsynonymous SNP at position Cys-100, a highly conserved amino-acid, in the gene coding for this protein is responsible for functional diversity. Additional information on the polymorphism described.
Other resources: Links to websites of interest for the variant.

• Variant rs1909261 [ dbSNP | Ensembl ]

Sequence information

Variant position: 100 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: 316 The length of the canonical sequence.
Location on the sequence: TLPTVLGIFLFGNTEISLEA C LFPDVLHPFFIHDGASCAAG 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.
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 – 316	Olfactory receptor 51J1
Topological domain	85 – 104	Extracellular
Disulfide bond	100 – 191

Literature citations

Genetic elucidation of human hyperosmia to isovaleric acid.
Menashe I.; Abaffy T.; Hasin Y.; Goshen S.; Yahalom V.; Luetje C.W.; Lancet D.;
PLoS Biol. 5:2462-2468(2007)
Cited for: POLYMORPHISM; VARIANT TYR-100;