1JBS

Crystal structure of ribotoxin restrictocin and a 29-mer SRD RNA analog

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	C, D	29-mer sarcin/ricin domain RNA analog	polymer	29	9505.9	2
2	A, B	restrictocin	polymer	149	16889.9	2	UniProt (P04389) Pfam (PF00545) UniProt (by SIFTS) (P67876) In PDB	Aspergillus restrictus	ribonuclease mitogillin
3	C, D	POTASSIUM ION	non-polymer		39.1	6	Chemie (K)
4		water	water		18.0	341	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	52791.7
Non-Polymers*	Number of molecules	6
	Total formula weight	234.6
All*	Total formula weight	53026.2

*Water molecules are not included.