Abstract:
:The neuronal presynaptic membrane t-SNARE complex consists of the transmembrane protein syntaxin with the palmitoylated protein SNAP-25. In non-neuronal tissues, SNAP-23 replaces SNAP-25 in the t-SNARE complex, although the mechanism of membrane anchoring of SNAP-23 has not been determined. We now report that like SNAP-25, SNAP-23 is palmitoylated in vivo on one or more cysteine residues present in a central "palmitoylation domain." Interestingly, SNAP-23 is palmitoylated less well than SNAP-25, and in vivo binding studies indicate a correlation between the extent of palmitoylation and the ability of SNAP-23 or SNAP-25 to bind to syntaxin in vivo.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Vogel K,Roche PAdoi
10.1006/bbrc.1999.0652subject
Has Abstractpub_date
1999-05-10 00:00:00pages
407-10issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(99)90652-6journal_volume
258pub_type
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