3KGD

Crystal structure of E. coli RNA 3' cyclase

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	RNA 3'-terminal phosphate cyclase	polymer	358	38344.6	4	UniProt (P46849) Pfam (PF01137) Pfam (PF05189) In PDB	Escherichia coli	RNA-3'-phosphate cyclase, RNA cyclase
2	A, B, C, D	ADENOSINE MONOPHOSPHATE	non-polymer		347.2	4	Chemie (AMP)
3	D, A, B, C	GLYCEROL	non-polymer		92.1	10	Chemie (GOL)
4	D, A, B, C	SODIUM ION	non-polymer		23.0	5	Chemie (NA)
5	D, A, B, C	SULFATE ION	non-polymer		96.1	8	Chemie (SO4)
6		water	water		18.0	1508	Chemie (HOH)

Sequence modifications

A, B, C, D: 2 - 339 (UniProt: P46849)

PDB	External Database	Details
Gly -18	-	expression tag
His -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
Ser -7	-	expression tag
Ser -6	-	expression tag
Gly -5	-	expression tag
His -4	-	expression tag
Ile -3	-	expression tag
Glu -2	-	expression tag
Gly -1	-	expression tag
Arg 0	-	expression tag
His 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	153378.5
Non-Polymers*	Number of molecules	27
	Total formula weight	3193.3
All*	Total formula weight	156571.8

*Water molecules are not included.