1RYM

Structure of the Group II Intron Splicing Factor CRS2

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	protein CRS2	polymer	212	23655.9	1	UniProt (Q9M5P4) Pfam (PF01195)	Zea mays
2	B (A)	water	water		18.0	124	Chemie (HOH)

Sequence modifications

A: -1 - 191 (UniProt: Q9M5P4)

PDB	External Database	Details
Met -13	-	expression tag
Arg -12	-	expression tag
Gly -11	-	expression tag
Ser -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
Gly -3	-	expression tag
Ser -2	-	expression tag
Glu 42	Ile 100	engineered mutation
Lys 192	-	cloning artifact
Tyr 193	-	cloning artifact
Lys 194	-	cloning artifact
Phe 195	-	cloning artifact
His 196	-	cloning artifact
Arg 197	-	cloning artifact
Val 198	-	cloning artifact

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	23655.9
All*	Total formula weight	23655.9

*Water molecules are not included.