6Y2P

Escherichia coli RnlA-RnlB Toxin-Antitoxin System.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	mRNA endoribonuclease toxin LS	polymer	357	40104.0	2	UniProt (P52129) Pfam (PF19417) Pfam (PF15935) Pfam (PF19034) In PDB	Escherichia coli (strain K12)	RNase LS,Toxin LS
2	C, D	Antitoxin RnlB	polymer	134	14960.0	2	UniProt (P52130) Pfam (PF15933) In PDB	Escherichia coli (strain K12)
3		water	water		18.0	27	Chemie (HOH)

Sequence modifications

C, D: 1 - 123 (UniProt: P52130)

PDB	External Database	Details
Ala 124	-	expression tag
Ala 125	-	expression tag
Ala 126	-	expression tag
Leu 127	-	expression tag
Glu 128	-	expression tag
His 129	-	expression tag
His 130	-	expression tag
His 131	-	expression tag
His 132	-	expression tag
His 133	-	expression tag
His 134	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	110128.0
All*	Total formula weight	110128.0

*Water molecules are not included.