7NN3

A carbohydrate esterase family 15 (CE15) glucuronoyl esterase from Caldicellulosiruptor kristjansonii

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	Beta-xylanase	polymer	399	44577.3	4	UniProt (E4S6E9) Pfam (PF22244)	Caldicellulosiruptor kristjanssonii (strain ATCC 700853 / DSM 12137 / I77R1B)
2	E, X (A, C)	TRIETHYLENE GLYCOL	non-polymer		150.2	2	Chemie (PGE)
3	AA, BA, CA, DA, EA... (C, D, A, B)	1,2-ETHANEDIOL	non-polymer		62.1	24	Chemie (EDO)
4	GA, H, HA, KA, N... (D, A, B)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	7	Chemie (PEG)
5	S (B)	ACETATE ION	non-polymer		59.0	1	Chemie (ACT)
6	MA, NA, OA, PA (A, B, C, D)	water	water		18.0	1138	Chemie (HOH)

Sequence modifications

A, B, C, D: 22 - 399 (UniProt: E4S6E9)

PDB	External Database	Details
Met 1	-	initiating methionine
Gly 2	-	expression tag
Ser 3	-	expression tag
Ser 4	-	expression tag
His 5	-	expression tag
His 6	-	expression tag
His 7	-	expression tag
His 8	-	expression tag
His 9	-	expression tag
His 10	-	expression tag
Ser 11	-	expression tag
Ser 12	-	expression tag
Glu 13	-	expression tag
Asn 14	-	expression tag
Leu 15	-	expression tag
Tyr 16	-	expression tag
Phe 17	-	expression tag
Gln 18	-	expression tag
Gly 19	-	expression tag
His 20	-	expression tag
Ile 21	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	178309.0
Non-Polymers*	Number of molecules	34
	Total formula weight	2591.9
All*	Total formula weight	180900.9

*Water molecules are not included.