8XZY

Structure of a xylanase Xyl-1 M4 mutant E175A

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)	Endo-1,4-beta-xylanase	polymer	201	21502.8	4	UniProt (Q0CMZ1) Pfam (PF00457)	Aspergillus terreus (strain NIH 2624 / FGSC A1156)
2	E, F, G, H, I... (A, B, C, D)	ZINC ION	non-polymer		65.4	7	Chemie (ZN)
3	L, M, N, O (A, B, C, D)	water	water		18.0	697	Chemie (HOH)

Sequence modifications

A, B, C, D: 2 - 189 (UniProt: Q0CMZ1)

PDB	External Database	Details
Gly -11	-	expression tag
Ala -10	-	expression tag
Gly -9	-	expression tag
Ala -8	-	expression tag
Gly -7	-	expression tag
Ala -6	-	expression tag
Gly -5	-	expression tag
Ala -4	-	expression tag
Gly -3	-	expression tag
Ala -2	-	expression tag
Gly -1	-	expression tag
Met 0	-	expression tag
Glu 1	-	expression tag
Pro 31	Asp 62	engineered mutation
Gln 34	Ala 65	engineered mutation
Gln 118	Lys 149	engineered mutation
His 168	Ala 199	engineered mutation
Ala 176	Glu 207	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	86011.1
Non-Polymers*	Number of molecules	7
	Total formula weight	457.9
All*	Total formula weight	86469.0

*Water molecules are not included.