1EK4

BETA-KETOACYL [ACYL CARRIER PROTEIN] SYNTHASE I IN COMPLEX WITH DODECANOIC ACID TO 1.85 RESOLUTION

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	BETA-KETOACYL [ACYL CARRIER PROTEIN] SYNTHASE I	polymer	418	44073.7	4	UniProt (P0A953) Pfam (PF00109) Pfam (PF02801) In PDB	Escherichia coli	KAS I
2	A, B, C, D	LAURIC ACID	non-polymer		200.3	4	Chemie (DAO)
3		water	water		18.0	786	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 406 (UniProt: P0A953)

PDB	External Database	Details
Met -11	-	expression tag
Arg -10	-	expression tag
Gly -9	-	expression tag
Ser -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
Gly -1	-	expression tag
Ser 0	-	expression tag
Val 4	Ala 4	conflict
Ser 163	Cys 163	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	176294.8
Non-Polymers*	Number of molecules	4
	Total formula weight	801.3
All*	Total formula weight	177096.1

*Water molecules are not included.