PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
23019099-6	2012	This finding excluded that the individual p53 spots in 2D gels reflect charge isomers generated by phosphorylation, but rather suggest that they are due to conformational flexibility of urea-denatured monomeric p53 molecules or deamidation of asparagine and glutamine residues.	Glutamine	258-267	tumor protein p53	Homo sapiens	42-45