3C9I

Structure of P22 Tail-Needle GP26 Bound to Xenon Gas

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...)	Tail needle protein gp26	polymer	242	25640.4	6	UniProt (P35837)	Bacteriophage P22	Packaged DNA stabilization protein
2	G, H, I, J, K... (A, C, D, F)	XENON	non-polymer		131.3	14	Chemie (XE)
3	M, V (A, D)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4	N, W (A, D)	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
5	AA, BA, CA, DA, Y... (C, D, E, F, A...)	water	water		18.0	1590	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F: 1001 - 1233 (UniProt: P35837)

PDB	External Database	Details
Gly 992	-	expression tag
Ala 993	-	expression tag
Leu 994	-	expression tag
Val 995	-	expression tag
Pro 996	-	expression tag
Arg 997	-	expression tag
Gly 998	-	expression tag
Ser 999	-	expression tag
His 1000	-	expression tag
Val 1169	Leu 169	engineered mutation
Met 1222	Leu 222	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	153842.5
Non-Polymers*	Number of molecules	18
	Total formula weight	1989.2
All*	Total formula weight	155831.7

*Water molecules are not included.