I found out what 0501 0501 means:
Not DQ1, because that would be 0101 0501 (or 0601 or any 05* or 06*)
there are two alleles that make up each gene and we have two genes. there may be multiple expressions, though, and some expressions are over two genes or somethjing like that.
But there is a good list of what the alleles are on the wiki page about DQ.
http://en.wikipedia.org/wiki/HLA-DQ
and there are good explanations about DQ types and celiac online in some articles in medical publications.
also http://www.ihwg.org/protocols/sbt/voorter-DQB1.pdf
also http://www.tidsskriftet.no/pls/lts/P...SEKS_ID=924350 explains about the alleles and molecules.
These are mainly about DQ2 and 8.
I have some links for DQ9 too:
http://www.ncbi.nlm.nih.gov/sites/en..._uids=10917890 and there is a link to the free article there.