3IEV

Crystal Structure of ERA in Complex with MgGNP and the 3' End of 16S rRNA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	GTP-binding protein era	polymer	308	34822.1	1	UniProt (O67800) Pfam (PF01926) Pfam (PF07650) In PDB	Aquifex aeolicus
2	D	5'-R(P*AP*UP*CP*AP*CP*CP*UP*CP*CP*UP*UP*A)-3'	polymer	12	3693.2	1
3	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
4	A	PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER	non-polymer		522.2	1	Chemie (GNP)
5	A	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
6		water	water		18.0	245	Chemie (HOH)

Sequence modifications

A: 1 - 301 (UniProt: O67800)

PDB	External Database	Details
Gly -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	38515.3
Non-Polymers*	Number of molecules	3
	Total formula weight	642.6
All*	Total formula weight	39157.9

*Water molecules are not included.