7D23

Crystal structure of Ixodes scapularis glutaminyl cyclase with one K ion bound to the active site

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Glutaminyl-peptide cyclotransferase	polymer	329	38248.1	1	UniProt (B7QK46) Pfam (PF04389) In PDB	Ixodes scapularis (Black-legged tick)
2	A	POTASSIUM ION	non-polymer		39.1	2	Chemie (K)
3	A	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		122.1	1	Chemie (TRS)
4		water	water		18.0	393	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	38248.1
Non-Polymers*	Number of molecules	3
	Total formula weight	200.3
All*	Total formula weight	38448.4

*Water molecules are not included.