2R1D

Crystal structure of rat neurexin 1beta in the Ca2+ containing form

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, D, E... (A, B, C, D, E...)	Neurexin-1-beta	polymer	226	24321.2	10	UniProt (Q63373) Pfam (PF02210)	Rattus norvegicus (Norway rat)	neurexin I-beta
2	K, L, M (B, D, I)	CALCIUM ION	non-polymer		40.1	3	Chemie (CA)
3	N, O, P, Q, R... (A, B, C, D, E...)	water	water		18.0	113	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	243212.0
Non-Polymers*	Number of molecules	3
	Total formula weight	120.2
All*	Total formula weight	243332.2

*Water molecules are not included.