Yeah. All those questions answered by Dr. Scot Lewey. He has some patients who are celiac but whse genes do not fit, and read those articles about half the genes. He comments about some of the labs only testing for the beta chain, thus missing the alpha chain.
http://www.celiac.com/articles/21567...ing/Page1.html
and several articles on his blog.
He comments specific on Sollid's article.
Now I was tested for my genes at sollid's lab and was negative for DQ2 or 8.
I am quite sure they only tested for the beta chain. I did phone them and as what they tested for but could not get an answer.

Lewey's blog: http://thefooddoc.blogspot.com/2008/...c-disease.html

nora