PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9348336-2 1997 Although PKC phosphorylates the NMDA receptor subunit NR1 at four residues within the C terminal splice cassette C1, the molecular mechanisms underlying PKC potentiation of NMDA responses are not yet known. N-Methylaspartate 32-36 glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis 54-57