PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
10400349-0	1999	The 3-methylaspartase reaction probed using 2H- and 15N-isotope effects for three substrates: a flip from a concerted to a carbocationic amino-enzyme elimination mechanism upon changing the C-3 stereochemistry in the substrate from R to S. The mechanisms of the elimination of ammonia from (2S,3S)-3-methylaspartic acid, (2S)-aspartic acid and (2S,3R)-3-methylaspartic acid, catalysed by the enzyme L-threo-3-methylaspartase ammonia-lyase (EC 4.3.1.2) have been probed using 15N-isotope effects.	Ammonia	277-284	complement C3	Homo sapiens	190-193	
1380468-1	1992	Purified alpha 2-macroglobulin and complement proteins C3 and C4 were treated with ammonia to break their intramolecular thioester bonds and reform the original free cysteinyl and glutamyl side chains.	Ammonia	83-90	complement C3	Homo sapiens	55-64	
1636781-3	1992	Incubation of purified human C3 with ammonia in concentrations found in urine results in significant disruption of the C3 thiolester bond compared with ammonia-free controls.	Ammonia	37-44	complement C3	Homo sapiens	29-31	
1636781-3	1992	Incubation of purified human C3 with ammonia in concentrations found in urine results in significant disruption of the C3 thiolester bond compared with ammonia-free controls.	Ammonia	37-44	complement C3	Homo sapiens	119-121	
1636781-3	1992	Incubation of purified human C3 with ammonia in concentrations found in urine results in significant disruption of the C3 thiolester bond compared with ammonia-free controls.	Ammonia	152-159	complement C3	Homo sapiens	29-31	
9786066-6	1998	In contrast to PPH, ammonia levels were markedly increased for C3A cells in all culture media tested (p < 0.01).	Ammonia	20-27	complement C3	Homo sapiens	63-66	
9786066-7	1998	Ammonia increase correlated with C3A viability (r = 0.896, p < 0.05).	Ammonia	0-7	complement C3	Homo sapiens	33-36	
8615824-6	1996	Bovine factor H binds to human ammonia-treated C3 (causing thiolester cleavage) [C3(NH3)] and promotes the cleavage of human C3(NH3) in the presence of bovine factor I.	Ammonia	31-38	complement C3	Homo sapiens	81-87