using a computerized autoradiographic subtraction technique , we have examined the regional distribution of meptazinol-sensitive [ 3h ] [ d-ala2 , mephe4 , gly ( ol ) 5 ] enkephalin ( dago ) binding and compared this with the distribution of mu 1 binding determined by competition with low [ d-ala2 , d-leu5 ] enkephalin ( dadl ) concentrations .
C0525773
dago
C0014298
enkephalin