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UniProtKB/Swiss-Prot Q92932: Variant p.Ser208Pro

Receptor-type tyrosine-protein phosphatase N2
Gene: PTPRN2
Variant information

Variant position:  208
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 Proline (P) at position 208 (S208P, p.Ser208Pro).
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 (P)
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.



Sequence information

Variant position:  208
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  1015
The length of the canonical sequence.

Location on the sequence:   FSESILTYVAHTSALTYPPG  S RTQLREDLLPRTLGQLQPDE
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                         FSESILTYVAHTSALTYPPGSRTQLREDLLPRTLGQLQPDE

Mouse                         SPENILTYVAHTSALTYPPATRAKYPDNLL-RPFSRLQPDE

Rat                           SPENILTYVAHTSALTYPPATRVKYPDNLL-RPLSRLQPDE

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 22 – 1015 Receptor-type tyrosine-protein phosphatase N2
Topological domain 22 – 615 Extracellular
Region 1 – 421 Involved in localization to secretory granules; interaction with CPE


Literature citations

Molecular cloning and characterization of the human transmembrane protein tyrosine phosphatase homologue, phogrin, an autoantigen of type 1 diabetes.
Kawasaki E.; Hutton J.C.; Eisenbarth G.S.;
Biochem. Biophys. Res. Commun. 227:440-447(1996)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1); DOMAIN; ROLE IN DIABETES MELLITUS; VARIANT PRO-208;

Characterization and chromosomal localization of PTPRP, a receptor protein tyrosine phosphatase predominantly expressed in brain and pancreas.
Jiang S.; Tulloch G.; Fu Y.; London R.; Hummel G.S.; White R.A.; Avraham H.; Avraham S.;
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 4); VARIANTS THR-140; PRO-208 AND ASN-325;

Prediction of the coding sequences of unidentified human genes. VII. The complete sequences of 100 new cDNA clones from brain which can code for large proteins in vitro.
Nagase T.; Ishikawa K.; Nakajima D.; Ohira M.; Seki N.; Miyajima N.; Tanaka A.; Kotani H.; Nomura N.; Ohara O.;
DNA Res. 4:141-150(1997)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 3); VARIANTS PRO-208 AND HIS-213;

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] (ISOFORM 2); VARIANT PRO-208;

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.