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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q9ULV1: Variant p.Cys204Tyr

Frizzled-4
Gene: FZD4
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Variant information Variant position: help 204 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help 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: help From Cysteine (C) to Tyrosine (Y) at position 204 (C204Y, p.Cys204Tyr). 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 (Y) 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
Variant description: help In EVR1. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 204 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 537 The length of the canonical sequence.
Location on the sequence: help VGTNSDQYIWVKRSLNCVLK C GYDAGLYSRSAKEFTDIWMA 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                         VGTNSDQYIWVKRSLNCVLKCGYDAGLYSRSAKEFTDIWMA

Mouse                         VGSNSDQYIWVKRSLNCVLKCGYDAGLYSRSAKEFTDIWMA

Rat                           VGTNSDQYIWVKRSLNCVLKCGYDAGLYSRSAKEFTDIWMA

Chicken                       MGSNSDQYIWVKRNLDCVLKCGYDAGLYSRSAKEFTDIWMA

Xenopus laevis                FGPNSDQYTWVKRSMNCVLKCGYDSGLYNRLSKEFTDIWMA
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 37 – 537 Frizzled-4
Topological domain 37 – 212 Extracellular
Disulfide bond 204 – 282



Literature citations
Crystal structure of the Frizzled 4 receptor in a ligand-free state.
Yang S.; Wu Y.; Xu T.H.; de Waal P.W.; He Y.; Pu M.; Chen Y.; DeBruine Z.J.; Zhang B.; Zaidi S.A.; Popov P.; Guo Y.; Han G.W.; Lu Y.; Suino-Powell K.; Dong S.; Harikumar K.G.; Miller L.J.; Katritch V.; Xu H.E.; Shui W.; Stevens R.C.; Melcher K.; Zhao S.; Xu F.;
Nature 560:666-670(2018)
Cited for: X-RAY CRYSTALLOGRAPHY (2.40 ANGSTROMS) OF 178-517; FUNCTION; SUBCELLULAR LOCATION; TRANSMEMBRANE DOMAINS; DISULFIDE BONDS; CHARACTERIZATION OF VARIANTS ARG-181 AND TYR-204; MUTAGENESIS OF SER-233; TYR-250; ARG-253; TYR-265; TYR-269; GLU-341; ASP-371; TYR-378; ASN-381; LEU-399; SER-418; TYR-444; TYR-455; GLU-458; GLU-477; LYS-480; TRP-494 AND TRP-496; Overview of the mutation spectrum in familial exudative vitreoretinopathy and Norrie disease with identification of 21 novel variants in FZD4, LRP5, and NDP.
Nikopoulos K.; Venselaar H.; Collin R.W.J.; Riveiro-Alvarez R.; Boonstra F.N.; Hooymans J.M.; Mukhopadhyay A.; Shears D.; van Bers M.; de Wijs I.J.; van Essen A.J.; Sijmons R.H.; Tilanus M.A.D.; van Nouhuys C.E.; Ayuso C.; Hoefsloot L.H.; Cremers F.P.M.;
Hum. Mutat. 31:656-666(2010)
Cited for: VARIANTS EVR1 GLN-40; TYR-204 AND ARG-525;
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.