ENO1 is a homodimeric soluble protein that encodes a smaller monomeric structural lens protein, tau-crystallin. ENO1 is a glycolytic enzyme expressed in mainly all tissues. ENO1 isoenzyme full length protein is found in the cytoplasm. The shorter protein is formed from another translation start that is restricted to the nucleus, and binds to a component in the c-myc promoter. ENO1 is involved in anaerobic metabolism under hypoxic conditions and plays a role as a cell surface plasminogen receptor during tissue invasion. Irregular expression of Enolase-1 is linked with tumor progression in several cases of breast and lung cancer. Enolase-1 is as an auto antigen associated with Hashimoto's encephalopathy and severe asthma. ENO1 is the target protein of serum anti-endothelial antibody in Behcet's disease Synonyms: NNE, PPH, MPB1, MBP-1, ENO1L1, ENO1, Alpha-Enolase, Enolase-Alpha, 2-phospho-D-glycerate hydro-lyase, Non-neural enolase, Enolase 1, MPB-1, Phosphopyruvate hydratase, C-myc promoter-binding protein, Plasminogen-binding protein, MBPB1