SNARE bonding: '4Q's' make a swell bundle; '2R's' spoil the fun.
Duden
R
R
D001120:Arginine / Q000737:chemistry; D005973:Glutamine / Q000737:chemistry; D008565:Membrane Proteins / Q000737:chemistry*; D050600:SNARE Proteins; D022142:Secretory Vesicles / Q000737:chemistry; D033921:Vesicular Transport Proteins
D008565:Membrane Proteins; D050600:SNARE Proteins; D033921:Vesicular Transport Proteins; D005973:Glutamine; D001120:Arginine