IP receptor antibody

[Research Haematologie]

Can anybody tell me where I can find an antibody against the IP receptor
on human platelets (= prostaglandin I2 receptor).
I'm also looking for an antibody against the EP1 receptor.
Antibody may be poly- or monoclonal and be directed against a peptide, or
the folded receptor.
I've searched in a lot of catalogues, but they do not seem to be commercially available.

Els  (e.dendekker at lab.azu.nl)