3.6.4.6 A505L lethal mutation 654648 3.6.4.6 D100A mutant to study the Ca2+ sensitivity of the interaction between NSF and the glutamate receptor subunit 2 of AMPAR 688499 3.6.4.6 D142A mutant to study the Ca2+ sensitivity of the interaction between NSF and the glutamate receptor subunit 2 of AMPAR 688499 3.6.4.6 E153A mutant to study the Ca2+ sensitivity of the interaction between NSF and the glutamate receptor subunit 2 of AMPAR 688499 3.6.4.6 E209K site-directed mutagenesis 733702 3.6.4.6 E219K naturally occurring mutation, constitutes variations in surface-exposed locations 756637 3.6.4.6 E219K naturally occurring mutation, the E219K mutation leads to an almost complete loss of activity 756637 3.6.4.6 E232Q ATPase-deficient mutant 689461 3.6.4.6 E233Q a mutant protein with very low ATPase activity. In the presence of ADP recombinant mutant enzyme forms dimers. In contrast, the addition of ATP results in the formation of a large complex with at least ten subunits 724447 3.6.4.6 E233Q inactive 758466