Fax Number: (706) 632-3278. Blue Ridge, incorporated on October 24, 1887, is the county seat of Fannin County. The city is named for the southern reach of the Appalachian Mountain Range that stretches into that area.
HLA-DR HLA-DR is a MHC class II cell surface receptor encoded by the human leukocyte antigen complex on chromosome 6 region 6p21.31. The complex of HLA-DR and its ligand, a peptide of 9 amino acids in length or longer, constitutes a ligand for the T-cell receptor. HLA were originally defined as cell surface antigens that mediate graft-versus-host disease, which resulted in the rejection of tissue transplants in HLA-mismatched donors.
HLA are proteins that are located on the surface of the white blood cells and other tissues in the body. There are three general groups of HLA, they are HLA-A,HLA-B and HLA-DR. There are many different specific HLA proteins within each of these three groups.