1Q47

Structure of the Semaphorin 3A Receptor-Binding Module

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)	Semaphorin 3A	polymer	495	56463.6	2	UniProt (O08665) Pfam (PF01403)	Mus musculus (house mouse)	Semaphorin III, Sema III, Semaphorin D, Sema D
2	C, D, E, F (A, B)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	4	Chemie (NAG)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	112927.2
Non-Polymers*	Number of molecules	4
	Total formula weight	884.8
All*	Total formula weight	113812.0

*Water molecules are not included.