2EQD - JenaLib

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF CEL44A, GH FAMILY 44 ENDOGLUCANASE FROM CLOSTRIDIUM THERMOCELLUM

Authors :   Y. Kitago, S. Karita, N. Watanabe, K. Sakka, I. Tanaka

Date :   30 Mar 07 (Deposition) - 18 Sep 07 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.80

Chains :   Asym./Biol. Unit : A

Keywords :   Tim-Barrel, Tim-Like Barrel, Beta-Sandwich, The Composite Domain Of Gh Family 5, 30, 39, 51, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   Y. Kitago, S. Karita, N. Watanabe, M. Kamiya, T. Aizawa, K. Sakka, I. Tanaka
Crystal Structure Of Cel44A, A Glycoside Hydrolase Family 4 Endoglucanase From Clostridium Thermocellum.
J. Biol. Chem. V. 282 35703 2007
PubMed-ID: 17905739 | Reference-DOI: 10.1074/JBC.M706835200

Molecule 1 - ENDOGLUCANASE
	Chains	:	A
	EC Number	:	3.2.1.4, 3.2.1.151
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PQE-30
	Expression System Strain	:	JM109
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Fragment	:	RESIDUES 1-519
	Gene	:	CELJ, CELJ-CEL44A
	Mutation	:	YES
	Organism Scientific	:	CLOSTRIDIUM THERMOCELLUM
	Organism Taxid	:	1515
	Strain	:	F1
	Synonym	:	GLYCOSIDE HYDROLASE, BETA-1,4-ENDOGLUCANASE

		1
Asymmetric/Biological Unit	:	A

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (5, 7)

No.	Name	Count	Type	Full Name
1	CA	1	Ligand/Ion	CALCIUM ION
2	CE8	1	Ligand/Ion	CELLOOCTAOSE
3	CL	1	Ligand/Ion	CHLORIDE ION
4	GOL	3	Ligand/Ion	GLYCEROL
5	ZN	1	Ligand/Ion	ZINC ION

Asymmetric Unit (7, 7)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	GLY A:45 , ASN A:46 , ARG A:47 , ALA A:60 , ASP A:63 , LYS A:80 , ASN A:101 , ASN A:185 , GLN A:186 , TYR A:233 , TYR A:285 , GLU A:287 , ARG A:294 , PHE A:297 , TRP A:327 , TRP A:331 , LYS A:332 , GLU A:359 , TRP A:392 , GOL A:601	BINDING SITE FOR RESIDUE CE8 A 800
2	AC2	SOFTWARE	ASP A:35 , GLU A:126 , ALA A:395 , GLU A:401	BINDING SITE FOR RESIDUE ZN A 700
3	AC3	SOFTWARE	GLU A:54 , ASP A:150 , ASP A:153 , TYR A:155	BINDING SITE FOR RESIDUE CA A 701
4	AC4	SOFTWARE	GLN A:186 , PRO A:187 , ALA A:188 , LEU A:232 , TYR A:233	BINDING SITE FOR RESIDUE CL A 702
5	AC5	SOFTWARE	GLU A:33 , LEU A:34 , LYS A:41 , LYS A:96 , ALA A:97 , LYS A:100	BINDING SITE FOR RESIDUE GOL A 600
6	AC6	SOFTWARE	ASN A:31 , ARG A:42 , PHE A:43 , GLY A:44 , ASP A:75 , CE8 A:800 , HOH A:842	BINDING SITE FOR RESIDUE GOL A 601
7	AC7	SOFTWARE	ASP A:35 , GLU A:126 , GLU A:401 , ALA A:402 , ASN A:405 , SER A:484	BINDING SITE FOR RESIDUE GOL A 602

(no "SS Bond" information available for 2EQD)

Asymmetric/Biological Unit

No.	Residues
1	Ala A:129	-	Pro A:130
2	Gly A:229	-	Pro A:230
3	Leu A:336	-	Pro A:337

(no "SAP(SNP)/Variant" information available for 2EQD)

(no "PROSITE Motif" information available for 2EQD)

(no "Exon" information available for 2EQD)

Asymmetric/Biological 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:510
 aligned with A3DD30_CLOTH | A3DD30 from UniProtKB/TrEMBL  Length:1601

    Alignment length:510
                                   784       794       804       814       824       834       844       854       864       874       884       894       904       914       924       934       944       954       964       974       984       994      1004      1014      1024      1034      1044      1054      1064      1074      1084      1094      1104      1114      1124      1134      1144      1154      1164      1174      1184      1194      1204      1214      1224      1234      1244      1254      1264      1274      1284
        A3DD30_CLOTH    775 AKVVDIRIDTSAERKPISPYIYGSNQELDATVTAKRFGGNRTTGYNWENNFSNAGSDWLHYSDTYLLEDGGVPKGEWSTPASVVTTFHDKALSKNVPYTLITLQAAGYVSADGNGPVSQEETAPSSRWKEVKFEKGAPFSLTPDTEDDYVYMDEFVNYLVNKYGNASTPTGIKGYSIDNEPALWSHTHPRIHPDNVTAKELIEKSVALSKAVKKVDPYAEIFGPALYGFAAYETLQSAPDWGTEGEGYRWFIDYYLDKMKKASDEEGKRLLDVLDVHWYPEARGGGERICFGADPRNIETNKARLQAPRTLWDPTYIEDSWIGQWKKDFLPILPNLLDSIEKYYPGTKLAITEYDYGGGNHITGGIAQADVLGIFGKYGVYLATFWGDASNNYTEAGINLYTNYDGKGGKFGDTSVKCETSDIEVSSAYASIVGEDDSKLHIILLNKNYDQPTTFNFSIDSSKNYTIGNVWAFDRGSSNITQRTPIVNIKDNTFTYTVPALTACHIVLEA 1284
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeeeeee.....ee...eeeee..........eee.hhhhhhh......ee.hhhhh.eeehhhhhhh....hhhhh.hhhhhhhhhhhhhh....eeeee....eee....ee.hhhhh.....eeeee................eeehhhhhhhhhhhhh.........eeee..hhhhhhhhh........hhhhhhhhhhhhhhhhhh.....eeeeeee.hhhhhhhh....hhhhhh....hhhhhhhhhhhhhhhhhh.....eeeeee....ee..ee........hhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhhh...eeeeeee......hhhhhhhhhhhhhhhhhh...eeee.....hhhhhhhhhhhhh..........eeeeeee.....eeeeeeee..eeeeeeeeeee......eeeeeeee......eeeeeeee..eeeeeeeeee......eeeeee...eeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                2eqd A    7 AKVVDIRIDTSAERKPISPYIYGSNQELDATVTAKRFGGNRTTGYNWENNFSNAGSDWLHYSDTYLLEDGGVPKGEWSTPASVVTTFHDKALSKNVPYTLITLQAAGYVSADGNGPVSQEETAPSSRWKEVKFEKGAPFSLTPDTEDDYVYMDEFVNYLVNKYGNASTPTGIKGYSIDNQPALWSHTHPRIHPDNVTAKELIEKSVALSKAVKKVDPYAEIFGPALYGFAAYETLQSAPDWGTEGEGYRWFIDYYLDKMKKASDEEGKRLLDVLDVHWYPEARGGGERICFGADPRNIETNKARLQAPRTLWDPTYIEDSWIGQWKKDFLPILPNLLDSIEKYYPGTKLAITEYDYGGGNHITGGIAQADVLGIFGKYGVYLATFWGDASNNYTEAGINLYTNYDGKGGKFGDTSVKCETSDIEVSSAYASIVGEDDSKLHIILLNKNYDQPTTFNFSIDSSKNYTIGNVWAFDRGSSNITQRTPIVNIKDNTFTYTVPALTACHIVLEA  516
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396       406       416       426       436       446       456       466       476       486       496       506       516

Chain A from PDB  Type:PROTEIN  Length:510
 aligned with P71140_CLOTM | P71140 from UniProtKB/TrEMBL  Length:1601

    Alignment length:510
                                   784       794       804       814       824       834       844       854       864       874       884       894       904       914       924       934       944       954       964       974       984       994      1004      1014      1024      1034      1044      1054      1064      1074      1084      1094      1104      1114      1124      1134      1144      1154      1164      1174      1184      1194      1204      1214      1224      1234      1244      1254      1264      1274      1284
        P71140_CLOTM    775 AKVVDIRIDTSAERKPISPYIYGSNQELDATVTAKRFGGNRTTGYNWENNFSNAGSDWLHYSDTYLLEDGGVPKGEWSTPASVVTTFHDKALSKNVPYTLITLQAAGYVSADGNGPVSQEETAPSSRWKEVKFEKGAPFSLTPDTEDDYVYMDEFVNYLVNKYGNASTPTGIKGYSIDNEPALWSHTHPRIHPDNVTAKELIEKSVALSKAVKKVDPYAEIFGPALYGFAAYETLQSAPDWGTEGEGYRWFIDYYLDKMKKASDEEGKRLLDVLDVHWYPEARGGGERICFGADPRNIETNKARLQAPRTLWDPTYIEDSWIGQWKKDFLPILPNLLDSIEKYYPGTKLAITEYDYGGGNHITGGIAQADVLGIFGKYGVYLATFWGDASNNYTEAGINLYTNYDGKGGKFGDTSVKCETSDIEVSSAYASIVGEDDSKLHIILLNKNYDQPTTFNFSIDSSKNYTIGNVWAFDRGSSNITQRTPIVNIKDNTFTYTVPALTACHIVLEA 1284
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeeeeee.....ee...eeeee..........eee.hhhhhhh......ee.hhhhh.eeehhhhhhh....hhhhh.hhhhhhhhhhhhhh....eeeee....eee....ee.hhhhh.....eeeee................eeehhhhhhhhhhhhh.........eeee..hhhhhhhhh........hhhhhhhhhhhhhhhhhh.....eeeeeee.hhhhhhhh....hhhhhh....hhhhhhhhhhhhhhhhhh.....eeeeee....ee..ee........hhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhhh...eeeeeee......hhhhhhhhhhhhhhhhhh...eeee.....hhhhhhhhhhhhh..........eeeeeee.....eeeeeeee..eeeeeeeeeee......eeeeeeee......eeeeeeee..eeeeeeeeee......eeeeee...eeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                2eqd A    7 AKVVDIRIDTSAERKPISPYIYGSNQELDATVTAKRFGGNRTTGYNWENNFSNAGSDWLHYSDTYLLEDGGVPKGEWSTPASVVTTFHDKALSKNVPYTLITLQAAGYVSADGNGPVSQEETAPSSRWKEVKFEKGAPFSLTPDTEDDYVYMDEFVNYLVNKYGNASTPTGIKGYSIDNQPALWSHTHPRIHPDNVTAKELIEKSVALSKAVKKVDPYAEIFGPALYGFAAYETLQSAPDWGTEGEGYRWFIDYYLDKMKKASDEEGKRLLDVLDVHWYPEARGGGERICFGADPRNIETNKARLQAPRTLWDPTYIEDSWIGQWKKDFLPILPNLLDSIEKYYPGTKLAITEYDYGGGNHITGGIAQADVLGIFGKYGVYLATFWGDASNNYTEAGINLYTNYDGKGGKFGDTSVKCETSDIEVSSAYASIVGEDDSKLHIILLNKNYDQPTTFNFSIDSSKNYTIGNVWAFDRGSSNITQRTPIVNIKDNTFTYTVPALTACHIVLEA  516
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396       406       416       426       436       446       456       466       476       486       496       506       516

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 '\|'

(no "SCOP Domain" information available for 2EQD)

(no "CATH Domain" information available for 2EQD)

(no "Pfam Domain" information available for 2EQD)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (P71140_CLOTM | P71140)

molecular function
	GO:0003824	catalytic activity	Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
	GO:0008810	cellulase activity	Catalysis of the endohydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose, lichenin and cereal beta-D-glucans.
	GO:0004553	hydrolase activity, hydrolyzing O-glycosyl compounds	Catalysis of the hydrolysis of any O-glycosyl bond.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
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: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.

Chain A (A3DD30_CLOTH | A3DD30)

molecular function
	GO:0003824	catalytic activity	Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
	GO:0008810	cellulase activity	Catalysis of the endohydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose, lichenin and cereal beta-D-glucans.
	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.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
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: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.

Asymmetric/Biological Unit
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	Ligands, Modified Residues, Ions
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	Cis Peptide Bonds
		Ala A:129 - Pro A:130	[ RasMol ]
		Gly A:229 - Pro A:230	[ RasMol ]
		Leu A:336 - Pro A:337	[ RasMol ]

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	2eqd
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		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
		Structural Genomics	:	GeneCensus
		Structural Neighbours	:	CE \| VAST
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	A3DD30_CLOTH \| A3DD30
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		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/TrEMBL
	P71140_CLOTM \| P71140
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt

Access by Enzyme Classificator (EC Number)
	3.2.1.151
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc
	3.2.1.4
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

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		Disease Information	:	OMIM

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		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
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	A3DD30_CLOTH \| A3DD30
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	P71140_CLOTM \| P71140
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

UniProtKB/Swiss-Prot
	P71140_CLOTM \| P71140	:	1wmx 2c26 2e0p 2eex 2ej1
UniProtKB/TrEMBL
	A3DD30_CLOTH \| A3DD30	:	1wmx 1wzx 2c26 2e0p 2eex 2ej1
	P71140_CLOTM \| P71140	:	2c24 2c4x 2e4t 2eo7

2e07	WILD TYPE COMPLEXED WITH CELLOHEXAOSE
2e0p	WILD TYPE COMPLEXED WITH CELLOPENTAOSE
2e4t	WILD TYPE, HIGHER RESOLUTION
2eex	E186Q MUTANT COMPLEXED WITH CELLOPENTAOSE
2ej1	E186Q MUTANT COMPLEXED WITH CELLOHEXAOSE

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (5, 7)

Sites (7, 7)

SS Bonds (0, 0)

Cis Peptide Bonds (3, 3)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (7, 13)

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File