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We are deeply saddened by the passing of Amos Bairoch (1957–2025), the creator of PROSITE. We wish to dedicate our latest paper, published shortly before his death, to him. He will always be a source of inspiration to us.
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Amos Bairoch

PROSITE documentation PDOC60031
Glutamic acid-rich protein 2 (GARP2) signature


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PURL: https://purl.expasy.org/prosite/documentation/PDOC60031

Description

The glutamic acid-rich protein 2 (GARP2 is a soluble retinal protein that exists in rod outer segments but is absent in cones. GARP2 is a product of alternative splicing of the β-subunit of the cGMP-gated ion channel (CNGB1) of rod photoreceptors and contains a unique 8-amino-acid C-terminal extension. It has a high content of proline and glutamate residues. GARP2 has been shown to bind to several retinal proteins including perpherin, and the photoreceptor phosphodiesterase (PDE6) [1,2].

As a signature we used the five last common amino acid and the unique 8-amino-acid C-terminal extension of GARP2.

Expert(s) to contact by email:

Cote R.

Last update:

March 2015 / First entry.

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Technical section

PROSITE method (with tools and information) covered by this documentation:

GARP2, PS60031; Glutamic acid-rich protein 2 (GARP2) signature  (PATTERN)


References

1AuthorsPentia D.C. Hosier S. Cote R.H.
TitleThe glutamic acid-rich protein-2 (GARP2) is a high affinity rod photoreceptor phosphodiesterase (PDE6)-binding protein that modulates its catalytic properties.
SourceJ. Biol. Chem. 281:5500-5505(2006).
PubMed ID16407240
DOI10.1074/jbc.M507488200

2AuthorsGibriel A.A.Y. Tate R.J. Yu Y. Rawson-Lax E. Hammer H.M. Tettey J.N.A. Pyne N.J. Converse C.A.
TitleThe p.Arg86Gln change in GARP2 (glutamic acid-rich protein-2) is a common West African-related polymorphism.
SourceGene 515:155-158(2013).
PubMed ID23201897
DOI10.1016/j.gene.2012.11.005



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