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Curr Opin Struct Biol. 1997 Dec;7(6):835-8.

Peptide recognition by PTB and PDZ domains.

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1
Rockefeller University, New York, NY 10021-6399, USA. cowburn@rockvax.rockefeller.edu

Abstract

Protein tyrosine binding (PTB) and 'post synaptic density disc-large zo-1' (PDZ) domains bind to short peptidic ligands by augmentation of one of the domain's beta sheets and other recognition mechanisms. The two domain classes have a superficial resemblance to each other, even though no sequential homology exists. The structural bases of the interactions are well understood for the few domains now experimentally determined, and ligand-target pairs can probably be identified in favorable cases by analogy with the known domains. For both PTB and PDZ classes, functional activities are still not fully defined: it is possible that these domain classes, along with pleckstrin homology domains, have multiple roles.

PMID:
9434904
[Indexed for MEDLINE]
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