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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O75643: Variant p.Pro682Ser

U5 small nuclear ribonucleoprotein 200 kDa helicase
Gene: SNRNP200
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Variant information Variant position: help 682 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 Proline (P) to Serine (S) at position 682 (P682S, p.Pro682Ser). 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 hydrophobic (P) to small size and polar (S) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -1 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 RP33. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 682 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 2136 The length of the canonical sequence.
Location on the sequence: help ATFLRVDPAKGLFYFDNSFR P VPLEQTYVGITEKKAIKRFQ 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                         ATFLRVDPAKGLFYFDNSFRPVPLEQTYVGITEKKAIKRFQ

Mouse                         ATFLRVDPAKGLFYFDNSFRPVPLEQTYVGITEKKAIKRFQ

Rat                           ATFLRVDPAKGLFYFDNSFRPVPLEQTYVGITEKKAIKRFQ

Caenorhabditis elegans        ATFLRVKPEH-LHFFDNSYRPVPLEQQYIGVTEKKALKRFQ

Drosophila                    ATFLRVKPDKGLFYFDNSYRPVSLEQQYIGVTEKKALKRFQ
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 – 2136 U5 small nuclear ribonucleoprotein 200 kDa helicase
Region 395 – 2129 Interaction with C9orf78 and WBP4
Alternative sequence 561 – 2071 Missing. In isoform 2.
Beta strand 681 – 683



Literature citations
Mutations in the small nuclear riboprotein 200 kDa gene (SNRNP200) cause 1.6% of autosomal dominant retinitis pigmentosa.
Bowne S.J.; Sullivan L.S.; Avery C.E.; Sasser E.M.; Roorda A.; Duncan J.L.; Wheaton D.H.; Birch D.G.; Branham K.E.; Heckenlively J.R.; Sieving P.A.; Daiger S.P.;
Mol. Vis. 19:2407-2417(2013)
Cited for: VARIANTS RP33 VAL-542; CYS-681; HIS-681; SER-682 AND LEU-1087;
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.