GASP/WFIKKN proteins: evolutionary aspects of their functions.
Growth and differentiation factor Associated Serum Protein (GASP) 1 and 2 are proteins known to be involved in the control of myostatin activity at least in vitro.Most deuterostome GASPs share a modular organization including WAP, follistatin/kazal, IGc2, two kunitz, and NTR domains.Based on an exon shuffling model, we performed independent phyloge