<prompt> HLA DQA1 is associated withSLESjogrens syndromeSclerodermaAnkylosing spondylosis  <response>: Molecular analysis of human leukocyte antigen HLA class II genes has revealed that Sjogrens syndrome, regardless of the patients ethnic origin, is highly associated with the HLA DQA10501 allele. Reference: Harrison 19th edition PG: 2166 