3WCR

Crystal structure of plant lectin (ligand-free 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 (A, B)	Erythroagglutinin	polymer	254	27619.8	2	UniProt (V5YN37) Pfam (PF00139) UniProt (by SIFTS) (P05088)	Phaseolus vulgaris (Kidney bean)	phytohemagglutinin
2	C, M (A, B)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	2	Chemie (NAG)
3	D, E, F, G, H... (A, B)	BROMIDE ION	non-polymer		79.9	19	Chemie (BR)
4	X, Y (A, B)	water	water		18.0	42	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	55239.6
Non-Polymers*	Number of molecules	21
	Total formula weight	1960.6
All*	Total formula weight	57200.2

*Water molecules are not included.