PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7760058-6 1995 From the C-3/C-4 labeling ratios in glutamine and glutamate and from the corresponding C-3/C-2 labeling ratio in GABA obtained with [2-13C]acetate, it was concluded that the carbon skeleton of glutamine to some extent was passed through TCA cycles before glutamate and GABA were formed. gamma-Aminobutyric Acid 113-117 complement component 2 (within H-2S) Mus musculus 91-94