9ONG

Crystal structure of E. coli ApaH in complex with Ap4AG

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)	Bis(5'-nucleosyl)-tetraphosphatase [symmetrical]	polymer	286	32160.5	2	UniProt (P05637) Pfam (PF00149)	Escherichia coli K-12	Ap4A hydrolase,Diadenosine 5',5'''-P1,P4-tetraphosphate pyrophosphohydrolase,Diadenosine tetraphosphatase
2	C, D (C, D)	RNA Ap4AG	polymer	2	1118.6	2		synthetic construct
3	E, G, I, K (A, B)	MANGANESE (II) ION	non-polymer		54.9	4	Chemie (MN)
4	F, J (A, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
5	H (B)	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID	non-polymer		238.3	1	Chemie (EPE)
6	L, M, N, O (A, B, C, D)	water	water		18.0	334	Chemie (HOH)

Sequence modifications

A, B: 1 - 280 (UniProt: P05637)

PDB	External Database	Details
His 281	-	expression tag
His 282	-	expression tag
His 283	-	expression tag
His 284	-	expression tag
His 285	-	expression tag
His 286	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	66558.3
Non-Polymers*	Number of molecules	7
	Total formula weight	506.7
All*	Total formula weight	67065.0

*Water molecules are not included.