Botulinum Neurotoxin Type G Receptor Binding DomainBotulinum Neurotoxin Type G Receptor Binding Domain

Structural highlights

3mpp is a 1 chain structure with sequence from Clostridium botulinum. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:botG (Clostridium botulinum)
Activity:Bontoxilysin, with EC number 3.4.24.69
Resources:FirstGlance, OCA, RCSB, PDBsum

Evolutionary Conservation

 

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Botulinum neurotoxin (BoNT) binds peripheral neurons at the neuromuscular junction through a dual-receptor mechanism that includes interactions with ganglioside and protein receptors. The receptor identities vary depending on BoNT serotype (A-G). BoNT/B and BoNT/G bind the luminal domains of synaptotagmin I and II, homologous synaptic vesicle proteins. We observe conditions under which BoNT/B binds both Syt isoforms, but BoNT/G binds only SytI. Both serotypes bind ganglioside G(T1b). The BoNT/G receptor-binding domain crystal structure provides a context for examining these binding interactions and a platform for understanding the physiological relevance of different Syt receptor isoforms in vivo.

Structural Analysis of Botulinum Neurotoxin Type G Receptor Binding .,Schmitt J, Karalewitz A, Benefield DA, Mushrush DJ, Pruitt RN, Spiller BW, Barbieri JT, Lacy DB Biochemistry. 2010 Jun 4. PMID:20507178[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Schmitt J, Karalewitz A, Benefield DA, Mushrush DJ, Pruitt RN, Spiller BW, Barbieri JT, Lacy DB. Structural Analysis of Botulinum Neurotoxin Type G Receptor Binding . Biochemistry. 2010 Jun 4. PMID:20507178 doi:10.1021/bi100412v

3mpp, resolution 1.98Å

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