3FEV

Crystal structure of the chimeric muscarinic toxin MT7 with loop 1 from MT1.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C	Fusion of Muscarinic toxin 1, Muscarinic m1-toxin1	polymer	65	7376.5	3	UniProt (P81030) UniProt (Q8QGR0) Pfam (PF21947) In PDB	Dendroaspis angusticeps	MTx1, MT1, m1-toxin, Muscarinic toxin 7, MT-7, MT7
2	B, C	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)
3		water	water		18.0	514	Chemie (HOH)

Sequence modifications

A, B, C: 1 - 16 (UniProt: P81030)
A, B, C: 17 - 65 (UniProt: Q8QGR0)

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	22129.4
Non-Polymers*	Number of molecules	2
	Total formula weight	192.1
All*	Total formula weight	22321.6

*Water molecules are not included.