Dual specificity protein phosphatase, N-terminal half
The active core of the dual specificity protein phosphatase is made up of two globular domains both with the DSP-like fold. This family represents the N-terminal half of the core. These domains are arranged in tandem, and are associated via an extens ...
The active core of the dual specificity protein phosphatase is made up of two globular domains both with the DSP-like fold. This family represents the N-terminal half of the core. These domains are arranged in tandem, and are associated via an extensive interface to form a single globular whole. The conserved PTP signature motif (Cys-[X]5-Arg) that defines the catalytic centre of all PTP-family members is located within the C-terminal domain, family DSPc, Pfam:PF00782. Although the centre of the catalytic site is formed from DSPc, two loops from the N-terminal domain, DSPn, also contribute to the catalytic site, facilitating peptide substrate specificity [1].
Ser/Thr and Tyr protein phosphatases. The enzyme's tertiary fold is highly similar to that of tyrosine-specific phosphatases, except for a "recognition" region [2].
