3A3U

Crystal structure of MqnD (TTHA1568), a menaquinone biosynthetic enzyme from Thermus thermophilus HB8

Replaces:  2DBP

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Menaquinone biosynthetic enzyme	polymer	272	30068.4	1	UniProt (Q5SI12) Pfam (PF02621)	Thermus thermophilus	MqnD, TTHA1568
2	B (A)	POTASSIUM ION	non-polymer		39.1	1	Chemie (K) PubChem (813)
3	C (A)	L(+)-TARTARIC ACID	non-polymer		150.1	1	Chemie (TLA) PubChem (875) PubChem (5851) PubChem (78956) PubChem (439655) PubChem (444305) PubChem (447315)
4	D (A)	2-(2-(2-(2-(2-(2-ETHOXYETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHANOL	non-polymer		310.4	1	Chemie (7PE) PubChem (526557)
5	E (A)	water	water		18.0	261	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	30068.4
Non-Polymers*	Number of molecules	3
	Total formula weight	499.6
All*	Total formula weight	30568.0

*Water molecules are not included.