Where are the definitions for abbreviations

[memartone]

'Mus musculus neocortex Basket +Cav2_1_P_Q +GluA1 +GluA4 +Kv3 +Nav1_1 +Nav1_6 +:Nav1_7 +PGC1α +RGS4 +Ras111b +Rspn +α1GABAaR +α4GABAaR +δGABAaR +Adcy8 +AM +Cckbr +Cox6c +Cplx1 +Mef2c +Pparg +PV +Slit2 +Slit3 +Syt2 +SP +Vamp1 +Arhgef10 +Esrrg +Nfh +Adcy1 +Syt7 +PV-cre neuron (Huang2017)'

What are AM, SP? When I search the ontology, I can't find them. The only AM I can find is anteromedial thalamus