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(-) Description

Title :  CRYSTAL STRUCTURE OF CARBONIC ANHYDRASE FROM STREPTOCOCCUS MUTANS TO 1.4 ANGSTROM RESOLUTION
 
Authors :  L. -L. Ma, K. -T. Wang, X. Liu, X. -D. Su
Date :  07 Jan 10  (Deposition) - 12 Jan 11  (Release) - 12 Jan 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.40
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Carbonic Anhydrase, Zinc Binding, Streptococcus Mutans, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  L. -L. Ma, K. -T. Wang, X. Liu, X. -D. Su
Crystal Structure Of Carbonic Anhydrase From Streptococcus Mutans To 1. 4 Angstrom Resolution
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - PUTATIVE CARBONIC ANHYDRASE
    Chains: A, B
    EC Number: 4.2.1.1
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET28A
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: SMU_328
    Organism Scientific: STREPTOCOCCUS MUTANS
    Organism Taxid: 1309

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 7)

Asymmetric/Biological Unit (4, 7)
No.NameCountTypeFull Name
1GAI2Ligand/IonGUANIDINE
2GOL1Ligand/IonGLYCEROL
3MG2Ligand/IonMAGNESIUM ION
4ZN2Ligand/IonZINC ION

(-) Sites  (7, 7)

Asymmetric Unit (7, 7)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:38 , HIS A:91 , CYS A:94 , HOH A:279BINDING SITE FOR RESIDUE ZN A 167
2AC2SOFTWAREASP A:126 , HOH A:173BINDING SITE FOR RESIDUE MG A 168
3AC3SOFTWARELEU A:43 , HIS A:44 , VAL A:45 , ALA A:46 , PRO A:47 , ARG A:60 , HOH A:276 , HIS B:44 , VAL B:45 , ALA B:46 , PRO B:47 , ARG B:60 , MG B:168BINDING SITE FOR RESIDUE GOL A 169
4AC4SOFTWAREMET A:1 , PHE A:6 , ASP A:7 , HOH A:282 , SER B:151 , GLU B:164 , HOH B:263BINDING SITE FOR RESIDUE GAI A 170
5AC5SOFTWARECYS B:38 , HIS B:91 , CYS B:94 , HOH B:278BINDING SITE FOR RESIDUE ZN B 167
6AC6SOFTWAREARG A:60 , GOL A:169 , ARG B:60BINDING SITE FOR RESIDUE MG B 168
7AC7SOFTWAREGLN A:119 , ASP B:68 , ARG B:72 , LEU B:143BINDING SITE FOR RESIDUE GAI B 169

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3LAS)

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 3LAS)

(-) 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:166
 aligned with Q8DVY1_STRMU | Q8DVY1 from UniProtKB/TrEMBL  Length:166

    Alignment length:166
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160      
         Q8DVY1_STRMU     1 MVMSYFDNFIKANQAYVDLHGTAHLPLKPKTRVAIVTCMDSRLHVAPALGLALGDAHILRNAGGRVTDDVIRSLVISEQQLGTSEIVVLHHTDCGAQTFTNAEFTEQLKRDLAVDAGDQDFLPFTDIEESVREDIALLKNSPLIPEDIIISGAIYDVDTGRVREVN 166
               SCOP domains d3lasa_ A: automated matches                                                                                                                                           SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhhhh...........eeeeee.....hhhhhhh.....eeeeee.....hhhhhhhhhhhhhh....eeeeeee..hhhhh.hhhhhhhhhhhhhh............hhhhhhhhhhhhhhhh.......eeeeeee......eee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3las A   1 MVMSYFDNFIKANQAYVDLHGTAHLPLKPKTRVAIVTCMDSRLHVAPALGLALGDAHILRNAGGRVTDDVIRSLVISEQQLGTSEIVVLHHTDCGAQTFTNAEFTEQLKRDLAVDAGDQDFLPFTDIEESVREDIALLKNSPLIPEDIIISGAIYDVDTGRVREVN 166
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160      


Chain B from PDB  Type:PROTEIN  Length:166
 aligned with Q8DVY1_STRMU | Q8DVY1 from UniProtKB/TrEMBL  Length:166

    Alignment length:166
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160      
         Q8DVY1_STRMU     1 MVMSYFDNFIKANQAYVDLHGTAHLPLKPKTRVAIVTCMDSRLHVAPALGLALGDAHILRNAGGRVTDDVIRSLVISEQQLGTSEIVVLHHTDCGAQTFTNAEFTEQLKRDLAVDAGDQDFLPFTDIEESVREDIALLKNSPLIPEDIIISGAIYDVDTGRVREVN 166
               SCOP domains d3lasb_ B: automated matches                                                                                                                                           SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) --------------------------------Pro_CA-3lasB01 B:33-162                                                                                                           ---- Pfam domains (1)
           Pfam domains (2) --------------------------------Pro_CA-3lasB02 B:33-162                                                                                                           ---- Pfam domains (2)
         Sec.struct. author ...hhhhhhhhhhhhhhhhhh...........eeeeee.....hhhhhhh.....eeeeeehhhh.hhhhhhhhhhhhhh....eeeeeee..hhhhh.hhhhhhhhhhhhhh............hhhhhhhhhhhhhhhh.......eeeeeee......eeee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3las B   1 MVMSYFDNFIKANQAYVDLHGTAHLPLKPKTRVAIVTCMDSRLHVAPALGLALGDAHILRNAGGRVTDDVIRSLVISEQQLGTSEIVVLHHTDCGAQTFTNAEFTEQLKRDLAVDAGDQDFLPFTDIEESVREDIALLKNSPLIPEDIIISGAIYDVDTGRVREVN 166
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160
   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  (1, 2)

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

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Clan: no clan defined [family: Pro_CA] (5)

(-) Gene Ontology  (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (Q8DVY1_STRMU | Q8DVY1)
molecular function
    GO:0004089    carbonate dehydratase activity    Catalysis of the reaction: H2CO3 = CO2 + H2O.
    GO:0016829    lyase activity    Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.

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