Fig. 3.

Methyl cross-peak assignments of the synaptobrevin SNARE motif within the SNARE complex. An expansion corresponding to the Leu-Val region of a ¹H-¹³C HMQC spectrum of a SNARE complex containing ²H,¹³CH₃-labeled synaptobrevin SNARE motif is shown. The inset shows an expansion of the region containing the two cross-peaks corresponding to Ile and Met (note that the M46 cross-peak appears strongly shifted upfield compared to the usual positions of Met methyl cross-peaks). Cross-peak assignments are indicated. Parentheses indicate tentative assignments