5NA6

Structure of Cys-null Se-Met DPP III from Bacteroides thetaiotaomicron

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Putative dipeptidyl-peptidase III	polymer	683	77687.5	1	UniProt (Q8A6N1) Pfam (PF03571) In PDB	Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / NCTC 10582 / E50 / VPI-5482)
2	A	ZINC ION	non-polymer		65.4	1	Chemie (ZN)
3	A	ACETATE ION	non-polymer		59.0	4	Chemie (ACT)
4	A	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
5	A	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		122.1	1	Chemie (TRS)
6	A	3,6,9,12,15,18,21,24,27,30,33,36,39-TRIDECAOXAHENTETRACONTANE-1,41-DIOL	non-polymer		634.8	1	Chemie (PE3)
7		water	water		18.0	575	Chemie (HOH)

Sequence modifications

A: 1 - 675 (UniProt: Q8A6N1)

PDB	External Database	Details
Ser 11	Cys 11	engineered mutation
Ser 158	Cys 158	engineered mutation
Ser 189	Cys 189	engineered mutation
Ser 425	Cys 425	engineered mutation
Ser 450	Cys 450	engineered mutation
Leu 676	-	expression tag
Glu 677	-	expression tag
His 678	-	expression tag
His 679	-	expression tag
His 680	-	expression tag
His 681	-	expression tag
His 682	-	expression tag
His 683	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	77687.5
Non-Polymers*	Number of molecules	8
	Total formula weight	1081.5
All*	Total formula weight	78769.0

*Water molecules are not included.