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UniProtKB/Swiss-Prot P18583: Variant p.Ser1202Leu

Protein SON
Gene: SON
Variant information

Variant position:  1202
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Polymorphism
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants implicated in disease according to literature reports.
  • Polymorphism: Variants not reported to be implicated in disease.
  • Unclassified: Variants with uncertain implication in disease according to literature reports. Evidence against or in favor of a pathogenic role is limited and/or conflicting.

Residue change:  From Serine (S) to Leucine (L) at position 1202 (S1202L, p.Ser1202Leu).
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 small size and polar (S) to medium size and hydrophobic (L)
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

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



Sequence information

Variant position:  1202
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  2426
The length of the canonical sequence.

Location on the sequence:   LPTEQSALTAENTWPTEVPS  S PSEESVSQPEPPVSQSEISE
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: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         LPTEQSALTAENTWPTEVPSSPSEESVSQPEPPVSQSEISE

Mouse                         LSTEQSALTADNTWSTEVTLS-TGESLSQPEPPVSQSEISE

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.

TypePositionsDescription
Chain 2 – 2426 Protein SON
Alternative sequence 690 – 2416 Missing. In isoform H.


Literature citations

From PREDs and open reading frames to cDNA isolation: revisiting the human chromosome 21 transcription map.
Reymond A.; Friedli M.; Neergaard Henrichsen C.; Chapot F.; Deutsch S.; Ucla C.; Rossier C.; Lyle R.; Guipponi M.; Antonarakis S.E.;
Genomics 78:46-54(2001)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS A; B; C; D; E AND F); VARIANTS SER-473; SER-473 AND LEU-1202;

Transcription repression of human hepatitis B virus genes by negative regulatory element-binding protein/SON.
Sun C.-T.; Lo W.-Y.; Wang I.-H.; Lo Y.-H.; Shiou S.-R.; Lai C.-K.; Ting L.-P.;
J. Biol. Chem. 276:24059-24067(2001)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM G); VARIANTS SER-473 AND LEU-1202; CYS-1575;

Prediction of the coding sequences of unidentified human genes. XIV. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro.
Kikuno R.; Nagase T.; Ishikawa K.; Hirosawa M.; Miyajima N.; Tanaka A.; Kotani H.; Nomura N.; Ohara O.;
DNA Res. 6:197-205(1999)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM B); VARIANTS SER-473 AND LEU-1202; CYS-1575;

Coding part of the son gene small transcript contains four areas of complete tandem repeats.
Bliskovskii V.V.; Berdichevskii F.B.; Tkachenko A.V.; Belova M.E.; Chumakov I.M.;
Mol. Biol. (Mosk.) 26:793-806(1992)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 1009-2426 (ISOFORMS A/D); VARIANTS SER-473 AND LEU-1202;

A cDNA clone for a novel nuclear protein with DNA binding activity.
Mattioni T.; Hume C.R.; Konigorski S.; Hayes P.; Osterweil Z.; Lee J.S.;
Chromosoma 101:618-624(1992)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 1145-2426 (ISOFORM F); SUBCELLULAR LOCATION; VARIANTS SER-473 AND LEU-1202;

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.