Plasma concentrations of the components of the growth arrest-specific gene 6 protein (GAS6)/Protein S (ProS)-Tyro3, Axl and MerTK receptor tyrosine kinase (TAM) system in systemic lupus erythematosus (SLE) and in normal controls. Normal controls were matched for age, ethnicity and geographical area (n = 50). Values were significantly different (P < 0.05).
Recarte-Pelz et al. Arthritis Research & Therapy 2013 15:R41 doi:10.1186/ar4199