5LQM

Structure of quinolinate synthase Y21F mutant in complex 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	34640.6	1	UniProt (Q9X1X7) Pfam (PF02445) In PDB	Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099)
2	A	IRON/SULFUR CLUSTER	non-polymer		351.6	1	Chemie (SF4)
3	A	CITRATE ANION	non-polymer		189.1	1	Chemie (FLC)
4		water	water		18.0	282	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	conflict
Arg 219	Lys 219	conflict

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	34640.6
Non-Polymers*	Number of molecules	2
	Total formula weight	540.7
All*	Total formula weight	35181.3

*Water molecules are not included.