Here we see catalytic antibody 13G5, with the catalytic/binding pocket highlighted in grey.

zooming in to the active site,

and removing the active site 'skin',

the key aspartic and glutamic acid residues are evident.

Interestingly, E35 (here indicated "E39", unhelpfully) does not participate directly in binding or catalysis, but rather serves primarily to properly position a water molecule so that it can facilitate catalysis.