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(-) Description

Title :  CATALYTIC DOMAIN OF CHITINASE A1 FROM BACILLUS CIRCULANS WL-12
 
Authors :  F. Iwahori, T. Matsumoto, T. Watanabe, T. Nonaka
Date :  13 Feb 02  (Deposition) - 13 Mar 02  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.10
Chains :  Asym./Biol. Unit :  A
Keywords :  Alpha-Beta (Tim) Barrel, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  T. Matsumoto, T. Nonaka, M. Hashimoto, T. Watanabe, Y. Mitsui
Three-Dimensional Structure Of The Catalytic Domain Of Chitinase A1 From Bacillus Circulans Wl-12 At A Very High Resolution
Proc. Jpn. Acad. , Ser. B V. 75 269 1999
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - GLYCOSYL HYDROLASE
    Chains: A
    EC Number: 3.2.1.14
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PKK223-3
    Expression System Strain: HB101
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: CATALYTIC DOMAIN
    Gene: CHIA1
    Organism Scientific: BACILLUS CIRCULANS
    Organism Taxid: 1397
    Synonym: CHITINASE A1

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 11)

Asymmetric/Biological Unit (1, 11)
No.NameCountTypeFull Name
1GOL11Ligand/IonGLYCEROL

(-) Sites  (11, 11)

Asymmetric Unit (11, 11)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREGLY A:87 , PRO A:89 , ARG A:169 , HOH A:1034 , HOH A:1094 , HOH A:1270 , HOH A:1380 , HOH A:1561BINDING SITE FOR RESIDUE GOL A 1001
02AC2SOFTWARETRP A:82 , ASN A:113 , THR A:179 , ARG A:387 , TRP A:389 , GLU A:413 , GOL A:1011 , HOH A:1059 , HOH A:1748BINDING SITE FOR RESIDUE GOL A 1002
03AC3SOFTWARETHR A:128 , ASP A:132 , THR A:133 , TRP A:134 , THR A:176 , ALA A:177 , ASP A:391 , LYS A:394 , HOH A:1052 , HOH A:1588BINDING SITE FOR RESIDUE GOL A 1003
04AC4SOFTWAREASP A:343 , GLY A:344 , ASN A:403 , LYS A:404 , ARG A:405 , SER A:424 , LYS A:425 , HOH A:1133 , HOH A:1359 , HOH A:1761BINDING SITE FOR RESIDUE GOL A 1004
05AC5SOFTWAREASN A:59 , ASN A:61 , ASP A:64 , VAL A:207 , PRO A:218 , LYS A:221 , HOH A:1169 , HOH A:1191 , HOH A:1755BINDING SITE FOR RESIDUE GOL A 1005
06AC6SOFTWAREASN A:83 , ASN A:110 , PRO A:112 , ASN A:113 , ASN A:381 , HOH A:1103 , HOH A:1195 , HOH A:1468BINDING SITE FOR RESIDUE GOL A 1006
07AC7SOFTWARETYR A:49 , PHE A:77 , ASP A:202 , GLU A:204 , ALA A:251 , MET A:277 , TYR A:279 , TRP A:433 , HOH A:1104 , HOH A:1230BINDING SITE FOR RESIDUE GOL A 1007
08AC8SOFTWARELEU A:33 , GLN A:34 , PRO A:35 , GLY A:253 , ALA A:254 , MET A:277 , TYR A:279 , ASP A:280 , HOH A:1759 , HOH A:1766BINDING SITE FOR RESIDUE GOL A 1008
09AC9SOFTWAREILE A:138 , ASN A:143 , ASN A:146 , LYS A:193 , GLN A:347 , HOH A:1097 , HOH A:1198 , HOH A:1248 , HOH A:1309 , HOH A:1387 , HOH A:1465BINDING SITE FOR RESIDUE GOL A 1009
10BC1SOFTWAREASN A:195 , ASP A:242 , GLN A:347 , ALA A:348 , GLY A:349 , HOH A:1069 , HOH A:1152 , HOH A:1537BINDING SITE FOR RESIDUE GOL A 1010
11BC2SOFTWARETRP A:82 , ASN A:83 , ARG A:387 , TYR A:388 , TRP A:389 , GOL A:1002 , HOH A:1043 , HOH A:1411 , HOH A:1426 , HOH A:1742 , HOH A:1762 , HOH A:1767BINDING SITE FOR RESIDUE GOL A 1011

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1A:81 -A:101
2A:345 -A:356

(-) Cis Peptide Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1Ala A:76 -Phe A:77
2Glu A:204 -Tyr A:205
3Trp A:433 -Glu A:434

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHITINASE_18PS01095 Chitinases family 18 active site.CHIA1_BACCI196-204  1A:196-204

(-) Exons   (0, 0)

(no "Exon" information available for 1ITX)

(-) Sequences/Alignments

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:419
 aligned with CHIA1_BACCI | P20533 from UniProtKB/Swiss-Prot  Length:699

    Alignment length:419
                                    42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442         
          CHIA1_BACCI    33 LQPATAEAADSYKIVGYYPSWAAYGRNYNVADIDPTKVTHINYAFADICWNGIHGNPDPSGPNPVTWTCQNEKSQTINVPNGTIVLGDPWIDTGKTFAGDTWDQPIAGNINQLNKLKQTNPNLKTIISVGGWTWSNRFSDVAATAATREVFANSAVDFLRKYNFDGVDLDWEYPVSGGLDGNSKRPEDKQNYTLLLSKIREKLDAAGAVDGKKYLLTIASGASATYAANTELAKIAAIVDWINIMTYDFNGAWQKISAHNAPLNYDPAASAAGVPDANTFNVAAGAQGHLDAGVPAAKLVLGVPFYGRGWDGCAQAGNGQYQTCTGGSSVGTWEAGSFDFYDLEANYINKNGYTRYWNDTAKVPYLYNASNKRFISYDDAESVGYKTAYIKSKGLGGAMFWELSGDRNKTLQNKLKADL 451
               SCOP domains d1itxa1 A:33-337,A:410-451 Chitinase A1                                                                                                                                                                                                                                                                          d1itxa2 A:338-409 Chitinase A1                                          d1itxa1 A:33-337,A:410-451 Chitinase A1    SCOP domains
               CATH domains 1itxA01 A:33-336,A:410-451 Glycosidases                                                                                                                                                                                                                                                                         1itxA02 A:337-409  [code=3.10.50.10, no name defined]                    1itxA01 A:33-336,A:410-451 Glycosidases    CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhhhheeeeeee.hhhh....hhhhhhhhhh.eeeeeeeee....eeee........eeee...............eee.hhhhhhh............hhhhhhhhhhhhhh...eeeeeee......hhhhhhhhhhhhhhhhhhhhhhhhhhh..eeeee................hhhhhhhhhhhhhhhhhhhhhhhhh...eeeeee..hhhhhhh.hhhhhhhhh.eeee.....................hhhhhhh........hhhhhhhhhhhhh.hhh.eeeeee.eeeeee...hhhhhh.....ee.........eeehhhhhhhh.....eeeeee....eeeeee.....eee..hhhhhhhhhhhhhhhh..eeeeehhhhh..hhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------CHITINASE------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1itx A  33 LQPATAEAADSYKIVGYYPSWAAYGRNYNVADIDPTKVTHINYAFADICWNGIHGNPDPSGPNPVTWTCQNEKSQTINVPNGTIVLGDPWIDTGKTFAGDTWDQPIAGNINQLNKLKQTNPNLKTIISVGGWTWSNRFSDVAATAATREVFANSAVDFLRKYNFDGVDLDWEYPVSGGLDGNSKRPEDKQNYTLLLSKIREKLDAAGAVDGKKYLLTIASGASATYAANTELAKIAAIVDWINIMTYDFNGAWQKISAHNAPLNYDPAASAAGVPDANTFNVAAGAQGHLDAGVPAAKLVLGVPFYGRGWDGCAQAGNGQYQTCTGGSSVGTWEAGSFDFYDLEANYINKNGYTRYWNDTAKVPYLYNASNKRFISYDDAESVGYKTAYIKSKGLGGAMFWELSGDRNKTLQNKLKADL 451
                                    42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442
   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 '|'

 Classification and Annotation

(-) SCOP Domains  (2, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (2, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (10, 10)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CHIA1_BACCI | P20533)
molecular function
    GO:0030246    carbohydrate binding    Interacting selectively and non-covalently with any carbohydrate, which includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more hydroxy groups to afford the corresponding aldehydes, ketones, or carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom. Cyclitols are generally not regarded as carbohydrates.
    GO:0004568    chitinase activity    Catalysis of the hydrolysis of (1->4)-beta linkages of N-acetyl-D-glucosamine (GlcNAc) polymers of chitin and chitodextrins.
    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:0016798    hydrolase activity, acting on glycosyl bonds    Catalysis of the hydrolysis of any glycosyl bond.
    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:0006032    chitin catabolic process    The chemical reactions and pathways resulting in the breakdown of chitin, a linear polysaccharide consisting of beta-(1->4)-linked N-acetyl-D-glucosamine residues.
    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.
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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 Related Entries

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        CHIA1_BACCI | P20533: 1ed7 1k85

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