1QQQ

CRYSTAL STRUCTURE ANALYSIS OF SER254 MUTANT OF ESCHERICHIA COLI THYMIDYLATE SYNTHASE

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	THYMIDYLATE SYNTHASE	polymer	264	30854.1	1	UniProt (P0A884) Pfam (PF00303) In PDB	Escherichia coli
2	A	SULFATE ION	non-polymer		96.1	3	Chemie (SO4)
3		water	water		18.0	221	Chemie (HOH)

Sequence modifications

A: 1 - 264 (UniProt: P0A884)

PDB	External Database	Details
Ser 254	Phe 254	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	30854.1
Non-Polymers*	Number of molecules	3
	Total formula weight	288.2
All*	Total formula weight	31142.3

*Water molecules are not included.