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Title :   CATALYTIC CORE DOMAIN OF ACETYL XYLAN ESTERASE FROM TRICHODERMA REESEI

Authors :   N. Hakulinen, J. Rouvinen

Date :   25 Nov 99 (Deposition) - 24 Nov 00 (Release) - 05 Jul 17 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.90

Chains :   Asym. Unit : A,B
Biol. Unit 1: A  (1x)
Biol. Unit 2: B  (1x)

Keywords :   Hydrolase, Esterase, Xylan Degradation (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   N. Hakulinen, M. Tenkanen, J. Rouvinen
Three-Dimensional Structure Of The Catalytic Core Of Acetylxylan Esterase From Trichoderma Reesei: Insights Into The Deacetylation Mechanism
J. Struct. Biol. V. 132 180 2000
PubMed-ID: 11243887 | Reference-DOI: 10.1006/JSBI.2000.4318
(for further references see the PDB file header)

Molecule 1 - ACETYL XYLAN ESTERASE
	Chains	:	A, B
	EC Number	:	3.1.1.72
	Fragment	:	CATALYTIC DOMAIN, RESIDUES 32-238
	Organism Scientific	:	TRICHODERMA REESEI
	Organism Taxid	:	51453
	Strain	:	RUTC-30
	Synonym	:	AXE

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (1x)	:	A
Biological Unit 2 (1x)	:		B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 4)

No.	Name	Count	Type	Full Name
1	NAG	2	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE
2	PCA	2	Mod. Amino Acid	PYROGLUTAMIC ACID

Biological Unit 1 (2, 2)

No.	Name	Count	Type	Full Name
1	NAG	1	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE
2	PCA	1	Mod. Amino Acid	PYROGLUTAMIC ACID

Biological Unit 2 (2, 2)

No.	Name	Count	Type	Full Name
1	NAG	1	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE
2	PCA	1	Mod. Amino Acid	PYROGLUTAMIC ACID

Asymmetric Unit (2, 2)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	TYR A:43 , PRO A:44 , ASN A:63 , HOH A:2031 , HOH A:2215 , HOH A:2216 , HOH A:2218 , HOH A:2220 , GLY B:109	BINDING SITE FOR RESIDUE NAG A 926
2	AC2	SOFTWARE	GLY A:109 , TYR B:43 , PRO B:44 , ASN B:63 , HOH B:2083 , HOH B:2202 , HOH B:2203 , HOH B:2205	BINDING SITE FOR RESIDUE NAG B 927

Asymmetric Unit

No.	Residues
1	A:2	-	A:79
2	A:46	-	A:52
3	A:101	-	A:161
4	A:147	-	A:179
5	A:171	-	A:178
6	B:2	-	B:79
7	B:46	-	B:52
8	B:101	-	B:161
9	B:147	-	B:179
10	B:171	-	B:178

(no "Cis Peptide Bond" information available for 1QOZ)

(no "SAP(SNP)/Variant" information available for 1QOZ)

Asymmetric Unit (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	LIPASE_SER	PS00120	Lipases, serine active site.	AXE1_HYPJE	115-124	2	A:84-93 B:84-93

Biological Unit 1 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	LIPASE_SER	PS00120	Lipases, serine active site.	AXE1_HYPJE	115-124	1	A:84-93 -

Biological Unit 2 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	LIPASE_SER	PS00120	Lipases, serine active site.	AXE1_HYPJE	115-124	1	- B:84-93

(no "Exon" information available for 1QOZ)

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:207
 aligned with AXE1_HYPJE | Q99034 from UniProtKB/Swiss-Prot  Length:302

    Alignment length:207
                                    41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       
           AXE1_HYPJE    32 QCPAIHVFGARETTVSQGYGSSATVVNLVIQAHPGTTSEAIVYPACGGQASCGGISYANSVVNGTNAAAAAINNFHNSCPDTQLVLVGYSQGAQIFDNALCGGGDPGEGITNTAVPLTAGAVSAVKAAIFMGDPRNIHGLPYNVGTCTTQGFDARPAGFVCPSASKIKSYCDAADPYCCTGNDPNVHQGYGQEYGQQALAFINSQLS 238
               SCOP domains d1qoza_ A: Acetylxylan esterase                                                                                                                                                                                 SCOP domains
               CATH domains -1qozA00 A:2-207  [code=3.40.50.1820, no name defined]                                                                                                                                                          CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeee.............hhhhhhhhhhhh...ee.................hhhhhhhh.hhhhhhhhhhhhhhh...eeee......hhhhhhhhh.......................eeeeee............eeee................hhh.eeeee...........hhhhhh.......hhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------LIPASE_SER------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qoz A   1 xCPAIHVFGARETTVSQGYGSSATVVNLVIQAHPGTTSEAIVYPACGGQASCGGISYANSVVNGTNAAAAAINNFHNSCPDTQLVLVGYSQGAQIFDNALCGGGDPGEGITNTAVPLTAGAVSAVKAAIFMGDPRNIHGLPYNVGTCTTQGFDARPAGFVCPSASKIKSYCDAADPYCCTGNDPNVHQGYGQEYGQQALAFINSQLS 207
                            |       10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       
                            |                                                                                                                                                                                                              
                            1-PCA

Chain B from PDB  Type:PROTEIN  Length:206
 aligned with AXE1_HYPJE | Q99034 from UniProtKB/Swiss-Prot  Length:302

    Alignment length:206
                                    41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231      
           AXE1_HYPJE    32 QCPAIHVFGARETTVSQGYGSSATVVNLVIQAHPGTTSEAIVYPACGGQASCGGISYANSVVNGTNAAAAAINNFHNSCPDTQLVLVGYSQGAQIFDNALCGGGDPGEGITNTAVPLTAGAVSAVKAAIFMGDPRNIHGLPYNVGTCTTQGFDARPAGFVCPSASKIKSYCDAADPYCCTGNDPNVHQGYGQEYGQQALAFINSQL 237
               SCOP domains d1qozb_ B: Acetylxylan esterase                                                                                                                                                                                SCOP domains
               CATH domains -1qozB00 B:2-206  [code=3.40.50.1820, no name defined]                                                                                                                                                         CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeee.............hhhhhhhhhhhh...ee.................hhhhhhhh.hhhhhhhhhhhhhhh...eeee......hhhhhhhhh.......................eeeeee............eeee................hhh.eeeee...........hhhhhh.......hhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------LIPASE_SER----------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qoz B   1 xCPAIHVFGARETTVSQGYGSSATVVNLVIQAHPGTTSEAIVYPACGGQASCGGISYANSVVNGTNAAAAAINNFHNSCPDTQLVLVGYSQGAQIFDNALCGGGDPGEGITNTAVPLTAGAVSAVKAAIFMGDPRNIHGLPYNVGTCTTQGFDARPAGFVCPSASKIKSYCDAADPYCCTGNDPNVHQGYGQEYGQQALAFINSQL 206
                            |       10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200      
                            1-PCA

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Asymmetric Unit

Classes(

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Folds(

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Superfamilies( (-)

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Families(

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Protein Domains( (-)

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Organisms( (-)

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Class: Alpha and beta proteins (a/b) (23833)

Fold: alpha/beta-Hydrolases (971)

Superfamily: alpha/beta-Hydrolases (971)

Family: Cutinase-like (50)

Protein domain: Acetylxylan esterase (4)

Trichoderma reesei [TaxId: 51453] (1)

1a	d1qoza_	A:
1b	d1qozb_	B:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

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Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Rossmann fold (7312)

Homologous Superfamily: [code=3.40.50.1820, no name defined] (692)

Trichoderma reesei. Organism_taxid: 51453. Strain: rutc-30 (1)

1a	1qozA00	A:2-207
1b	1qozB00	B:2-206

(no "Pfam Domain" information available for 1QOZ)

Asymmetric Unit(hide GO term definitions)

Chain A,B (AXE1_HYPJE | Q99034)

molecular function
	GO:0046555	acetylxylan esterase activity	Catalysis of the deacetylation of xylans and xylo-oligosaccharides.
	GO:0052689	carboxylic ester hydrolase activity	Catalysis of the hydrolysis of a carboxylic ester bond.
	GO:0030248	cellulose binding	Interacting selectively and non-covalently with cellulose.
	GO:0016787	hydrolase activity	Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
	GO:0004553	hydrolase activity, hydrolyzing O-glycosyl compounds	Catalysis of the hydrolysis of any O-glycosyl bond.
biological process
	GO:0005975	carbohydrate metabolic process	The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.
	GO:0030245	cellulose catabolic process	The chemical reactions and pathways resulting in the breakdown of cellulose, a linear beta1-4 glucan of molecular mass 50-400 kDa with the pyranose units in the -4C1 conformation.
	GO:0008152	metabolic process	The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
	GO:0000272	polysaccharide catabolic process	The chemical reactions and pathways resulting in the breakdown of a polysaccharide, a polymer of many (typically more than 10) monosaccharide residues linked glycosidically.
	GO:0045493	xylan catabolic process	The chemical reactions and pathways resulting in the breakdown of xylan, a polymer containing a beta-1,4-linked D-xylose backbone.
cellular component
	GO:0005576	extracellular region	The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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