UniProtKB/Swiss-Prot Q9UNS1: Variant p.Arg831Gln

• Variant information
• Sequence information
• Literature citations
• All

Variant information

Variant position: 831 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 Arginine (R) to Glutamine (Q) at position 831 (R831Q, p.Arg831Gln). 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 large size and basic (R) to medium size and polar (Q) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: 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
Other resources: Links to websites of interest for the variant.

• Variant rs774047 [ dbSNP | Ensembl ]

Sequence information

Variant position: 831 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: 1208 The length of the canonical sequence.
Location on the sequence: DDRSSSRRAPTWSPEEEAHL R ELYLANKDVEGQDVVEAILA 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 – 1208	Protein timeless homolog
Region	816 – 954	DNA-binding domain
Helix	824 – 837

Literature citations

Mammalian circadian autoregulatory loop: a timeless ortholog and mPer1 interact and negatively regulate CLOCK-ARTNL/BMAL1-induced transcription.
Sangoram A.M.; Saez L.; Antoch M.P.; Gekakis N.; Staknis D.; Whiteley A.; Fruechte E.M.; Vitaterna M.H.; Shimomura K.; King D.P.; Young M.W.; Weitz C.J.; Takahashi J.S.;
Neuron 21:1101-1113(1998)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 2); FUNCTION; TISSUE SPECIFICITY; VARIANTS LEU-455 AND GLN-831; Submission
NIEHS SNPs program;
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS SER-129; LEU-455; SER-471; GLN-831; VAL-870; HIS-922; TRP-924; THR-1017 AND LEU-1018; 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] (ISOFORMS 1 AND 2); VARIANTS GLN-831 AND LEU-1018;