7P4M

Structure of the quinolinate synthase Y107F variant in an empty open form

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 MSB8
2	A	IRON/SULFUR CLUSTER	non-polymer		351.6	1	Chemie (SF4)
3	A	FE3-S4 CLUSTER	non-polymer		295.8	1	Chemie (F3S)
4	A	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
5		water	water		18.0	373	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 107	Tyr 107	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	4
	Total formula weight	718.3
All*	Total formula weight	35358.9

*Water molecules are not included.