Tags: Protein.
Major histocompatibility complex class II DQ alpha 1 also known as HLA-DQA1 is a human gene present on short arm of chromosome 6 (6p21.3) and also denotes the genetic locus which contains this gene. The protein encoded by this gene is one of two proteins that are required to form the DQ heterodimer a cell surface receptor essential to the function of the immune system.