HLA-B27

HLA-B*2705-peptide (chain A shown in green cartoon, chain B shown in yellow cartoon) complexed to a fragment of the influenza nucleoprotein NP383-391 (orange, sticks). PDB ID 2BST
B*2705-β2MG with bound peptide 2bst
major histocompatibility complex (human), class I, B27
Alleles B*2701, 2702, 2703, . . .
Structure (See HLA-B) Available
3D structures
EBI-HLA B*2701 Archived 2009-02-20 at the Wayback Machine
B*2702 Archived 2009-02-20 at the Wayback Machine
B*2703 Archived 2009-02-20 at the Wayback Machine
B*2704 Archived 2009-02-20 at the Wayback Machine
B*2705 Archived 2009-02-20 at the Wayback Machine 2bsr​, 2bss​,
2bst​, 2a83​,
1w0v​, 1uxs​,
1ogt​, 1hsa​,
1jgd​, 1jge
B*2706 Archived 2009-02-20 at the Wayback Machine
B*2709 Archived 2009-02-20 at the Wayback Machine 1w0w​, 1uxw​,
1of2​, 1k5n

Human leukocyte antigen (HLA) B27 (subtypes B*2701-2759)[1] is a class I surface molecule encoded by the B locus in the major histocompatibility complex (MHC) on chromosome 6 and presents antigenic peptides (derived from self and non-self antigens) to T cells. HLA-B27 is strongly associated with ankylosing spondylitis and other associated inflammatory diseases, such as psoriatic arthritis, inflammatory bowel disease, and reactive arthritis.

  1. ^ M. A. Khan (2010). "HLA and spondyloarthropathies". In Narinder K. Mehra (ed.). The HLA Complex in Biology and Medicine. New Delhi, India: Jayppee Brothers Medical Publishers. pp. 259–275. ISBN 978-81-8448-870-8.