PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
15147900-5	2004	Either a single Cys-to-Ser substitution within the TRAF6 RING finger domain or an amino acid substitution on the Ubc13 surface, that is predicted to interact with RING finger proteins, is able to abolish the interaction.	Cysteine	16-19	ubiquitin conjugating enzyme E2 N	Homo sapiens	113-118	
22693631-9	2012	While the ISG15 activating enzyme UBE1L is conjugated by ISG15 in the classical way, we show that the ubiquitin conjugating enzyme Ubc13 can either be classically conjugated by ISG15 or can form a disulphide bridge with ISG15 at the active site cysteine 87.	Cysteine	245-253	ubiquitin conjugating enzyme E2 N	Homo sapiens	131-136	
25909880-3	2015	NSC697923 and BAY 11-7082 both inhibit Ubc13 by covalent adduct formation through a Michael addition at the Ubc13 active site cysteine.	Cysteine	126-134	ubiquitin conjugating enzyme E2 N	Homo sapiens	39-44	
25909880-3	2015	NSC697923 and BAY 11-7082 both inhibit Ubc13 by covalent adduct formation through a Michael addition at the Ubc13 active site cysteine.	Cysteine	126-134	ubiquitin conjugating enzyme E2 N	Homo sapiens	108-113	
23441730-4	2013	BAY 11-7082 prevents ubiquitin conjugation to Ubc13 and UbcH7 by forming a covalent adduct with their reactive cysteine residues via Michael addition at the C3 atom of BAY 11-7082, followed by the release of 4-methylbenzene-sulfinic acid.	Cysteine	111-119	ubiquitin conjugating enzyme E2 N	Homo sapiens	46-51