7P4P

Structure of the quinolinate synthase A84L variant complexed with citrate

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	34698.7	1	UniProt (Q9X1X7) Pfam (PF02445) In PDB	Thermotoga maritima MSB8
2	A	IRON/SULFUR CLUSTER	non-polymer		351.6	1	Chemie (SF4)
3	A	CITRATE ANION	non-polymer		189.1	1	Chemie (FLC)
4	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
5	A	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
6		water	water		18.0	351	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
Leu 84	Ala 84	engineered mutation
Arg 219	Lys 219	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	34698.7
Non-Polymers*	Number of molecules	6
	Total formula weight	671.4
All*	Total formula weight	35370.1

*Water molecules are not included.