PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21047785-10 2011 Inhibition caused by Tyr(302) nitration on OASA1 activity seems to be due to a drastically reduced O-acetylserine substrate binding to the nitrated protein, and also to reduced stabilization of the pyridoxal-5"-phosphate cofactor through hydrogen bonds. Pyridoxal Phosphate 198-220 O-acetylserine (thiol) lyase (OAS-TL) Arabidopsis thaliana 43-48