Dynamin inhibitory peptide (Synonyms: Gln-Val-Pro-Ser-Arg-Pro-Asn-Arg-Ala-Pro )

Dynamin Inhibitory Peptide is a peptide (Gln-Val-Pro-Ser-Arg-Pro-Asn-Arg-Ala-Pro) inhibitor of the GTPase dynamin.

Dynamin is a 100-kDa large GTPase that functions to tabulate membranes and liberate nascent vesicles from the Golgi apparatus and plasma membrane. Dynamin also plays a role in many processes including division of organelles,cytokinesis and microbial pathogen resistance.

Dynamin inhibitory peptide competitively blocks binding of dynamin to amphiphysin thus prevents endocytosis when administered intracellularly. Reduces GABA_A receptor internalization and increases miniature ISPC amplitude and frequency in neurons expressing GABA_A receptors.

References:
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3. Thoms S, Erdmann R (Oct 2005). "Dynamin-related proteins and Pex11 proteins in peroxisome division and proliferation.". FEBS J 272 (20): 5169-81.
4. Grabs et al (1997) The SH3 domain of amphiphysin binds the proline-rich domain of dynamin at a single site that defines a new SH3 binding consensus sequence. J.Biol.Chem. 272 13419-25.
5. Kittler et al (2000) Constitutive endocytosis of GABAA receptors by an association with the adaptin AP2 complex modulates inhibitory synaptic currents in hippocampal neurons. J.Neurosci. 20 7972-7.
6. Nong et al (2003) Glycine binding primes NMDA receptor internalization. Nature 422 302-7.