7YSR

GTPgammaS MT decorated with kinesin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Tubulin alpha chain	polymer	450	49961.3	2	UniProt (P06603) Pfam (PF00091) Pfam (PF03953) In PDB	Drosophila melanogaster (fruit fly)
2	B, D	Tubulin beta-1 chain	polymer	447	50194.1	2	UniProt (Q24560) Pfam (PF00091) Pfam (PF03953) In PDB	Drosophila melanogaster (fruit fly)	Beta-1-tubulin
3	A, C	GUANOSINE-5'-TRIPHOSPHATE	non-polymer		523.2	2	Chemie (GTP)
4	B, D	5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE	non-polymer		539.2	2	Chemie (GSP)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	200310.8
Non-Polymers*	Number of molecules	4
	Total formula weight	2124.9
All*	Total formula weight	202435.6

*Water molecules are not included.