6F48

Structure of quinolinate synthase with reaction intermediates X and Y

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Quinolinate synthase A	polymer	305	34640.6	1	UniProt (Q9X1X7) Pfam (PF02445) In PDB	Thermotoga maritima
2	A	IRON/SULFUR CLUSTER	non-polymer		351.6	1	Chemie (SF4)
3	A	2-imino,3-carboxy,5-hydroxy,6-oxo hexanoic acid	non-polymer		203.1	1	Chemie (XQB)
4	A	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
5	A	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
6	A	5-hydroxy,-4,5-dihydroquinolinate	non-polymer		185.1	1	Chemie (YQA)
7		water	water		18.0	314	Chemie (HOH)

Sequence modifications

A: 1 - 298 (UniProt: Q9X1X7)

PDB	External Database	Details
Met -6	-	initiating methionine
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag
Phe 21	Tyr 21	engineered mutation
Arg 219	Lys 219	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	34640.6
Non-Polymers*	Number of molecules	6
	Total formula weight	902.9
All*	Total formula weight	35543.5

*Water molecules are not included.