Mechanism of activation of mung bean aspartate transcarbamylase by sodium dodecyl sulphate

Prasad, P. V. ; Appaji Rao, N. (1985) Mechanism of activation of mung bean aspartate transcarbamylase by sodium dodecyl sulphate Biochemistry International, 11 (4). pp. 533-540. ISSN 0158-5231

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Abstract

Mung bean aspartate transcarbamylase (EC 2.1.3.2) (I) was activated by SDS, EtOH, and acetone in a pH-dependent manner. I was also activated when it was modified by pyridoxal-5'-phosphate followed by redn. with $NaBH_4$. SDS and other nonpolar compds. were postulated to activate I by altering the pKa of the $\Sigma$-amino group of a lysine residue on the enzyme.

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