4KHB

Structure of the Spt16D Pob3N heterodimer

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, E, F, G (A, G, E, C)	Uncharacterized protein SPT16D	polymer	127	14720.7	4	UniProt (G0SDN1) Pfam (PF08644)	Chaetomium thermophilum var. thermophilum
2	B, C, D, H (D, F, H, B)	Uncharacterized protein POB3N	polymer	195	21833.2	4	UniProt (G0SHK5) Pfam (PF17292) Pfam (PF03531)	Chaetomium thermophilum var. thermophilum
3	I, J, K, L, M... (A, D, F, H, E...)	SULFATE ION	non-polymer		96.1	9	Chemie (SO4)
4	R, S, T, U, V... (A, D, F, H, G...)	water	water		18.0	265	Chemie (HOH)

Sequence modifications

A, G, E, C: 522 - 647 (UniProt: G0SDN1)

PDB	External Database	Details
Met 521	-	initiating methionine

D, F, H, B: 1 - 192 (UniProt: G0SHK5)

PDB	External Database	Details
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	146215.8
Non-Polymers*	Number of molecules	9
	Total formula weight	864.6
All*	Total formula weight	147080.3

*Water molecules are not included.