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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O95371: Variant p.Cys149Trp

Olfactory receptor 2C1
Gene: OR2C1
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Variant information Variant position: help 149 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help 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: help From Cysteine (C) to Tryptophan (W) at position 149 (C149W, p.Cys149Trp). 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: help Change from medium size and polar (C) to large size and aromatic (W) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -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

Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 149 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 312 The length of the canonical sequence.
Location on the sequence: help PLRYTAIMNPQLCWLLAVIA C LGGLGNSVIQSTFTLQLPLC 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: help The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human                         PLRYTAIMNPQLCWLLAVIACLGGLGNSVIQSTFTLQLPLC

Mouse                         PLHYMTVMNPRLCWGLAAISWLGGLGNSVIQSTFTLQLPFC

Sequence annotation in neighborhood: help 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.
TypePositionsDescription
Chain 1 – 312 Olfactory receptor 2C1
Transmembrane 140 – 158 Helical; Name=4
Disulfide bond 97 – 189



Literature citations
Construction of an approximately 700-kb transcript map around the familial Mediterranean fever locus on human chromosome 16p13.3.
Centola M.; Chen X.; Sood R.; Deng Z.; Aksentijevich I.; Blake T.; Ricke D.O.; Chen X.; Wood G.; Zaks N.; Richards N.; Krizman D.; Mansfield E.; Apostolou S.; Liu J.; Shafran N.; Vedula A.; Hamon M.; Cercek A.; Kahan T.; Gumucio D.; Callen D.F.; Richards R.I.; Moyzis R.K.; Dogget N.A.; Collins F.S.; Liu P.P.; Fischel-Ghodsian N.; Kastner D.L.;
Genome Res. 8:1172-1191(1998)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS SER-16; TRP-149 AND HIS-229; Submission
Mural R.J.; Istrail S.; Sutton G.G.; Florea L.; Halpern A.L.; Mobarry C.M.; Lippert R.; Walenz B.; Shatkay H.; Dew I.; Miller J.R.; Flanigan M.J.; Edwards N.J.; Bolanos R.; Fasulo D.; Halldorsson B.V.; Hannenhalli S.; Turner R.; Yooseph S.; Lu F.; Nusskern D.R.; Shue B.C.; Zheng X.H.; Zhong F.; Delcher A.L.; Huson D.H.; Kravitz S.A.; Mouchard L.; Reinert K.; Remington K.A.; Clark A.G.; Waterman M.S.; Eichler E.E.; Adams M.D.; Hunkapiller M.W.; Myers E.W.; Venter J.C.;
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]; VARIANT TRP-149; The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).
The MGC Project Team;
Genome Res. 14:2121-2127(2004)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]; VARIANTS SER-16; TRP-149 AND HIS-229; The human olfactory receptor gene family.
Malnic B.; Godfrey P.A.; Buck L.B.;
Proc. Natl. Acad. Sci. U.S.A. 101:2584-2589(2004)
Cited for: IDENTIFICATION; VARIANT TRP-149;
Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.