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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.
Our deepest condolences go out to his family and friends, and to all those who had the privilege of working with him. Rest in peace, Amos. Your work will live on long after you are gone.
Amos Bairoch

PROSITE documentation PDOC50919
MIR domain profile


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PURL: https://purl.expasy.org/prosite/documentation/PDOC50919

Description

The protein mannosyltransferase, inositol 1,4,5-trisphosphate receptor (IP3R) and ryanodine receptor (RyR) (MIR) domain is an ~50-residue motif found generally in multiple copies in:

  • Eukaryotic protein O-mannosyl-transferases (EC 2.4.1.109).
  • Eukaryotic stromal cell-derived factor 2 (SDF-2).
  • Animal inositol 1,4,5-trisphosphate receptors.
  • Animal ryanodine receptors.
  • Chlamydia trachomatis protein CT153.

As single MIR domains are found in the chlamydial proteins and in a splice variant of mouse tape-2 IP3R, it is proposed that MIR domains represent independent structural units, rather than being tandem repeats arranged within a single structural domain. The MIR domain can be found associated with other domains such as MAC/Perforin domain, SPRY, RyR repeated domain, EF-hand domain (see <PDOC00018>) or RIH. The function of the MIR domain is not yet known [1].

The profile we developed covers the entire MIR domain.

Last update:

August 2003 / First entry.

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Technical section

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

MIR, PS50919; MIR domain profile  (MATRIX)


Reference

1AuthorsPonting C.P.
TitleNovel repeats in ryanodine and IP3 receptors and protein O-mannosyltransferases.
SourceTrends Biochem. Sci. 25:48-50(2000).
PubMed ID10664581



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