3R9W

Crystal structure of Era in complex with MgGDPNP and nucleotides 1506-1542 of 16S ribosomal RNA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	GTPase Era	polymer	307	34765.0	1	UniProt (O67800) Pfam (PF01926) Pfam (PF07650) In PDB	Aquifex aeolicus
2	B	RNA301	polymer	34	10905.5	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, B	ACETATE ION	non-polymer		59.0	5	Chemie (ACT)
6	A	(4R)-2-METHYLPENTANE-2,4-DIOL	non-polymer		118.2	2	Chemie (MRD)
7	B	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
8		water	water		18.0	91	Chemie (HOH)

Sequence modifications

A: 1 - 301 (UniProt: O67800)

PDB	External Database	Details
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	45670.6
Non-Polymers*	Number of molecules	10
	Total formula weight	1118.1
All*	Total formula weight	46788.7

*Water molecules are not included.