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(-) Description

Title :  CRYSTAL STRUCTURE OF IOTA-CARRAGEENASE FAMILY GH82 FROM A. FORTIS IN ABSENCE OF CHLORIDE IONS
 
Authors :  E. Rebuffet, T. Barbeyron, A. Jeudy, M. Czjzek, G. Michel
Date :  01 Feb 10  (Deposition) - 18 Aug 10  (Release) - 05 Mar 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.60
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Iota-Carrageenase, Marine Bacterial Enzyme, Family Gh82, Glycoside Hydrolase, Beta-Helix Fold, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  E. Rebuffet, T. Barbeyron, A. Jeudy, M. Jam, M. Czjzek, G. Michel
Identification Of Catalytic Residues And Mechanistic Analysis Of Family Gh82 Iota-Carrageenases
Biochemistry V. 49 7590 2010
PubMed-ID: 20681629  |  Reference-DOI: 10.1021/BI1003475

(-) Compounds

Molecule 1 - IOTA-CARRAGEENASE, CGIA
    ChainsA, B
    EC Number3.2.1.157
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET20B
    Expression System StrainBL21(DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneCGIA
    Organism ScientificALTEROMONAS
    Organism Taxid116059
    StrainATCC 43554

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 6)

Asymmetric Unit (3, 6)
No.NameCountTypeFull Name
1CA1Ligand/IonCALCIUM ION
2NI1Ligand/IonNICKEL (II) ION
3NO34Ligand/IonNITRATE ION
Biological Unit 1 (1, 1)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2NI-1Ligand/IonNICKEL (II) ION
3NO31Ligand/IonNITRATE ION
Biological Unit 2 (1, 3)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2NI-1Ligand/IonNICKEL (II) ION
3NO33Ligand/IonNITRATE ION

(-) Sites  (6, 6)

Asymmetric Unit (6, 6)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLY A:217 , ARG A:243 , LEU A:273 , ARG A:303 , LYS A:394BINDING SITE FOR RESIDUE NO3 A 3
2AC2SOFTWAREASN A:58 , ASP A:61 , SER A:63 , ASP A:65BINDING SITE FOR RESIDUE CA A 9
3AC3SOFTWAREASP A:178 , HIS A:496 , HIS A:498 , HOH A:658BINDING SITE FOR RESIDUE NI A 1
4AC4SOFTWAREARG B:243 , LEU B:273 , ARG B:303 , LYS B:394BINDING SITE FOR RESIDUE NO3 B 1
5AC5SOFTWAREHIS A:235 , ARG A:268 , ASN B:89 , GLU B:108 , SER B:109 , ASP B:110BINDING SITE FOR RESIDUE NO3 B 2
6AC6SOFTWAREARG B:303 , LYS B:394 , ASP B:396 , GLN B:397BINDING SITE FOR RESIDUE NO3 B 6

(-) SS Bonds  (8, 8)

Asymmetric Unit
No.Residues
1A:269 -A:298
2A:336 -A:360
3A:408 -A:476
4A:412 -A:484
5B:269 -B:298
6B:336 -B:360
7B:408 -B:476
8B:412 -B:484

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3LMW)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3LMW)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3LMW)

(-) Exons   (0, 0)

(no "Exon" information available for 3LMW)

(-) Sequences/Alignments

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:472
 aligned with CGIA_ALTFO | Q9F5I8 from UniProtKB/Swiss-Prot  Length:491

    Alignment length:472
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         491        
                                    37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487   |     -  
           CGIA_ALTFO    28 VSPKTYKDADFYVAPTQQDVNYDLVDDFGANGNDTSDDSNALQRAINAISRKPNGGTLLIPNGTYHFLGIQMKSNVHIRVESDVIIKPTWNGDGKNHRLFEVGVNNIVRNFSFQGLGNGFLVDFKDSRDKNLAVFKLGDVRNYKISNFTIDDNKTIFASILVDVTERNGRLHWSRNGIIERIKQNNALFGYGLIQTYGADNILFRNLHSEGGIALRMETDNLLMKNYKQGGIRNIFADNIRCSKGLAAVMFGPHFMKNGDVQVTNVSSVSCGSAVRSDSGFVELFSPTDEVHTRQSWKQAVESKLGRGCAQTPYARGNGGTRWAARVTQKDACLDKAKLEYGIEPGSFGTVKVFDVTARFGYNADLKQDQLDYFSTSNPMCKRVCLPTKEQWSKQGQIYIGPSLAAVIDTTPETSKYDYDVKTFNVKRINFPVNSHKTIDTNTESSRVCNYYGMSECSSSRWER--------   -
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhhh........eeeehhhhhh........hhhhhhhhhhhhhhh...eeeee...eeee..ee....eeeee....eeee........eeeee.........eeeee....eeee........eeeeee.....eeeeeeeee........eee..eee..eee....eeeeeeeee......eeeee.eeeeeeeeeeeee..eeeeee..hhhhhhhh..eeeeeeeeeeeee...eeeeee........eeeeeeeee.....eee.....eee.......hhhhhhhhhhhhhh.......ee.......eeee...hhhhhhhhhhhhh........eeeeeeeee....eeehhhhhhhhh.......................eee.....eee...........eeeeeeeee........eee.................hhhhhhh........ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3lmw A  28 VSPKTYKDADFYVAPTQQDVNYDLVDDFGANGNDTSDDSNALQRAINAISRKPNGGTLLIPNGTYHFLGIQMKSNVHIRVESDVIIKPTWNGDGKNHRLFEVGVNNIVRNFSFQGLGNGFLVDFKDSRDKNLAVFKLGDVRNYKISNFTIDDNKTIFASILVDVTERNGRLHWSRNGIIERIKQNNALFGYGLIQTYGADNILFRNLHSEGGIALRMETDNLLMKNYKQGGIRNIFADNIRCSKGLAAVMFGPHFMKNGDVQVTNVSSVSCGSAVRSDSGFVELFSPTDEVHTRQSWKQAVESKLGRGCAQTPYARGNGGTRWAARVTQKDACLDKAKLEYGIEPGSFGTVKVFDVTARFGYNADLKQDQLDYFSTSNPMCKRVCLPTKEQWSKQGQIYIGPSLAAVIDTTPETSKYDYDVKTFNVKRINFPVNSHKTIDTNTESSRVCNYYGMSECSSSRWERLEHHHHHH 499
                                    37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497  

Chain B from PDB  Type:PROTEIN  Length:449
 aligned with CGIA_ALTFO | Q9F5I8 from UniProtKB/Swiss-Prot  Length:491

    Alignment length:468
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          491   
                                    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    |   
           CGIA_ALTFO    27 AVSPKTYKDADFYVAPTQQDVNYDLVDDFGANGNDTSDDSNALQRAINAISRKPNGGTLLIPNGTYHFLGIQMKSNVHIRVESDVIIKPTWNGDGKNHRLFEVGVNNIVRNFSFQGLGNGFLVDFKDSRDKNLAVFKLGDVRNYKISNFTIDDNKTIFASILVDVTERNGRLHWSRNGIIERIKQNNALFGYGLIQTYGADNILFRNLHSEGGIALRMETDNLLMKNYKQGGIRNIFADNIRCSKGLAAVMFGPHFMKNGDVQVTNVSSVSCGSAVRSDSGFVELFSPTDEVHTRQSWKQAVESKLGRGCAQTPYARGNGGTRWAARVTQKDACLDKAKLEYGIEPGSFGTVKVFDVTARFGYNADLKQDQLDYFSTSNPMCKRVCLPTKEQWSKQGQIYIGPSLAAVIDTTPETSKYDYDVKTFNVKRINFPVNSHKTIDTNTESSRVCNYYGMSECSSSRWER---   -
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
           Pfam domains (1) ----------------------Pectate_lyase_3-3lmwB01 B:49-279                                                                                                                                                                                                       ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains (1)
           Pfam domains (2) ----------------------Pectate_lyase_3-3lmwB02 B:49-279                                                                                                                                                                                                       ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains (2)
         Sec.struct. author .......hhhhh........eeeehhhhhh........hhhhhhhhhhhhhhh...eeeee..eeeee..ee....eeeee...eeeee........eeeeee.....eeeeeeee....eeee........eeeeee..eeeeeeeeeeee........eee..eee..eee.eeeeeeeeeeee......eeeee.eeeeeeeeeeeee..eeeeee..hhhhhhhh..eeeeeeeeeeeee...eeeeee........eeeeeeeee.....eeee....ee--------hhhhhhhhhh---..........--------.ee...hhhhhhhhhhhhh........eeeeeeeee....eeehhhhhhhhh.......................eee.....eeee..........eee..eeee........eee.................hhhhhh.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3lmw B  27 AVSPKTYKDADFYVAPTQQDVNYDLVDDFGANGNDTSDDSNALQRAINAISRKPNGGTLLIPNGTYHFLGIQMKSNVHIRVESDVIIKPTWNGDGKNHRLFEVGVNNIVRNFSFQGLGNGFLVDFKDSRDKNLAVFKLGDVRNYKISNFTIDDNKTIFASILVDVTERNGRLHWSRNGIIERIKQNNALFGYGLIQTYGADNILFRNLHSEGGIALRMETDNLLMKNYKQGGIRNIFADNIRCSKGLAAVMFGPHFMKNGDVQVTNVSSVSCGSAVRSDSGFVEL--------TRQSWKQAVE---GRGCAQTPYA--------AARVTQKDACLDKAKLEYGIEPGSFGTVKVFDVTARFGYNADLKQDQLDYFSTSNPMCKRVCLPTKEQWSKQGQIYIGPSLAAVIDTTPETSKYDYDVKTFNVKRINFPVNSHKTIDTNTESSRVCNYYGMSECSSSRWERLEH 494
                                    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    |    -   |   326  |   |336     |   -    |  356       366       376       386       396       406       416       426       436       446       456       466       476       486        
                                                                                                                                                                                                                                                                                                                      311      320      329 333      342      351                                                                                                                                               

   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  (0, 0)

(no "SCOP Domain" information available for 3LMW)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3LMW)

(-) Pfam Domains  (1, 2)

Asymmetric Unit

(-) Gene Ontology  (9, 9)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (CGIA_ALTFO | Q9F5I8)
molecular function
    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:0033952    iota-carrageenase activity    Catalysis of the endohydrolysis of 1,4-beta-D-linkages between D-galactose 4-sulfate and 3,6-anhydro-D-galactose-2-sulfate in iota-carrageenans.
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:0071555    cell wall organization    A process that results in the assembly, arrangement of constituent parts, or disassembly of the cell wall, the rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal and most prokaryotic cells, maintaining their shape and protecting them from osmotic lysis.
    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.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        CGIA_ALTFO | Q9F5I81h80 1ktw

(-) Related Entries Specified in the PDB File

1h80 WILD-TYPE CRYSTAL STRUCTURE OF IOTA-CARRAGEENASE
1ktw COMPLEX CRYSTAL STRUCTURE OF IOTA-CARRAGEENASE WITH OLIGO- IOTA-CARRAGEENAN