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(-) Description

Title :  NEISSERIA GONORRHOEAE CARBONIC ANHYDRASE
 
Authors :  S. Huang, Y. Xue, L. Chirica, S. Lindskog, B. -H. Jonsson
Date :  22 Mar 98  (Deposition) - 09 Dec 98  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Lyase, Carbonic Anhydrase, Neisseria Gonorrhoeae, Structural Trimming (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. Huang, Y. Xue, E. Sauer-Eriksson, L. Chirica, S. Lindskog, B. H. Jonsson
Crystal Structure Of Carbonic Anhydrase From Neisseria Gonorrhoeae And Its Complex With The Inhibitor Acetazolamide.
J. Mol. Biol. V. 283 301 1998
PubMed-ID: 9761692  |  Reference-DOI: 10.1006/JMBI.1998.2077
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CARBONIC ANHYDRASE
    Chains: A, B
    EC Number: 4.2.1.1
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Organism Scientific: NEISSERIA GONORRHOEAE
    Organism Taxid: 485

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 8)

Asymmetric/Biological Unit (4, 8)
No.NameCountTypeFull Name
1AZI2Ligand/IonAZIDE ION
2BME2Ligand/IonBETA-MERCAPTOETHANOL
3SO42Ligand/IonSULFATE ION
4ZN2Ligand/IonZINC ION

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:92 , HIS A:94 , HIS A:111 , AZI A:305 , HOH A:307BINDING SITE FOR RESIDUE ZN A 301
2AC2SOFTWAREHIS A:92 , HIS A:94 , HIS A:111 , LEU A:176 , THR A:177 , ZN A:301 , HOH A:307 , HOH A:308 , HOH A:365BINDING SITE FOR RESIDUE AZI A 305
3AC3SOFTWAREHIS B:92 , HIS B:94 , HIS B:111 , AZI B:306 , HOH B:309BINDING SITE FOR RESIDUE ZN B 302
4AC4SOFTWAREHIS B:92 , HIS B:94 , HIS B:111 , LEU B:176 , THR B:177 , TRP B:187 , ZN B:302 , HOH B:309 , HOH B:310 , HOH B:464BINDING SITE FOR RESIDUE AZI B 306
5AC5SOFTWARELYS A:132 , THR A:133 , ASN A:134 , GLY A:135 , ARG A:136 , HIS A:195BINDING SITE FOR RESIDUE SO4 A 311
6AC6SOFTWAREASN B:134 , GLY B:135 , ARG B:136 , HIS B:195BINDING SITE FOR RESIDUE SO4 B 312
7AC7SOFTWAREHIS A:4 , ASN A:64 , HIS A:66BINDING SITE FOR RESIDUE BME A 303
8AC8SOFTWAREHIS B:4 , ASN B:64 , HIS B:66BINDING SITE FOR RESIDUE BME B 304

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1A:28 -A:181
2B:28 -B:181

(-) Cis Peptide Bonds  (6, 6)

Asymmetric/Biological Unit
No.Residues
1Ser A:35 -Pro A:36
2Val A:95 -Pro A:96
3Pro A:179 -Pro A:180
4Ser B:35 -Pro B:36
5Val B:95 -Pro B:96
6Pro B:179 -Pro B:180

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 4)

Asymmetric/Biological Unit (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ALPHA_CA_2PS51144 Alpha-carbonic anhydrases profile.CAH_NEIGO31-252
 		  2A:5-226
B:5-226
2ALPHA_CA_1PS00162 Alpha-carbonic anhydrases signature.CAH_NEIGO123-139
 		  2A:97-113
B:97-113

(-) Exons   (0, 0)

(no "Exon" information available for 1KOP)

(-) 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:223
 aligned with CAH_NEIGO | Q50940 from UniProtKB/Swiss-Prot  Length:252

    Alignment length:223
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249   
            CAH_NEIGO    30 HTHWGYTGHDSPESWGNLSEEFRLCSTGKNQSPVNITETVSGKLPAIKVNYKPSMVDVENNGHTIQVNYPEGGNTLTVNGRTYTLKQFHFHVPSENQIKGRTFPMEAHFVHLDENKQPLVLAVLYEAGKTNGRLSSIWNVMPMTAGKVKLNQPFDASTLLPKRLKYYRFAGSLTTPPCTEGVSWLVLKTYDHIDQAQAEKFTRAVGSENNRPVQPLNARVVIE 252
               SCOP domains d1kopa_ A: Carbonic anhydrase                                                                                                                                                                                                   SCOP domains
               CATH domains 1kopA00 A:4-226 Carbonic Anhydrase II                                                                                                                                                                                           CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......hhh.hhhhhhh.hhhhhhhh...................eeee.....eeeee....eeeee.....eeee..eeeeeeeeeee.............eeeeeeee.....eeeeeeeeee.......hhhh.......eeee......hhhh......eeeeeee.......eeeeeeee...eee.hhhhhhhhhhh.................. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -ALPHA_CA_2  PDB: A:5-226 UniProt: 31-252                                                                                                                                                                                       PROSITE (1)
                PROSITE (2) ---------------------------------------------------------------------------------------------ALPHA_CA_1       ----------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1kop A   4 HTHWGYTGHDSPESWGNLSEEFRLCSTGKNQSPVNITETVSGKLPAIKVNYKPSMVDVENNGHTIQVNYPEGGNTLTVNGRTYTLKQFHFHVPSENQIKGRTFPMEAHFVHLDENKQPLVLAVLYEAGKTNGRLSSIWNVMPMTAGKVKLNQPFDASTLLPKRLKYYRFAGSLTTPPCTEGVSWLVLKTYDHIDQAQAEKFTRAVGSENNRPVQPLNARVVIE 226
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223   


Chain B from PDB  Type:PROTEIN  Length:223
 aligned with CAH_NEIGO | Q50940 from UniProtKB/Swiss-Prot  Length:252

    Alignment length:223
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249   
            CAH_NEIGO    30 HTHWGYTGHDSPESWGNLSEEFRLCSTGKNQSPVNITETVSGKLPAIKVNYKPSMVDVENNGHTIQVNYPEGGNTLTVNGRTYTLKQFHFHVPSENQIKGRTFPMEAHFVHLDENKQPLVLAVLYEAGKTNGRLSSIWNVMPMTAGKVKLNQPFDASTLLPKRLKYYRFAGSLTTPPCTEGVSWLVLKTYDHIDQAQAEKFTRAVGSENNRPVQPLNARVVIE 252
               SCOP domains d1kopb_ B: Carbonic anhydrase                                                                                                                                                                                                   SCOP domains
               CATH domains 1kopB00 B:4-226 Carbonic Anhydrase II                                                                                                                                                                                           CATH domains
           Pfam domains (1) ---Carb_anhydrase-1kopB01 B:7-226                                                                                                                                                                                               Pfam domains (1)
           Pfam domains (2) ---Carb_anhydrase-1kopB02 B:7-226                                                                                                                                                                                               Pfam domains (2)
         Sec.struct. author .......hhh.hhhhhh..hhhhhhhh...................eeee......eeee....eeee......eeee..eeeeeeeeeee.............eeeeeeee.....eeeeeeeeee.......hhhhhh.....eeee......hhhh......eeeeeee.......eeeeeeee...eee.hhhhhhhhhhh.................. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -ALPHA_CA_2  PDB: B:5-226 UniProt: 31-252                                                                                                                                                                                       PROSITE (1)
                PROSITE (2) ---------------------------------------------------------------------------------------------ALPHA_CA_1       ----------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1kop B   4 HTHWGYTGHDSPESWGNLSEEFRLCSTGKNQSPVNITETVSGKLPAIKVNYKPSMVDVENNGHTIQVNYPEGGNTLTVNGRTYTLKQFHFHVPSENQIKGRTFPMEAHFVHLDENKQPLVLAVLYEAGKTNGRLSSIWNVMPMTAGKVKLNQPFDASTLLPKRLKYYRFAGSLTTPPCTEGVSWLVLKTYDHIDQAQAEKFTRAVGSENNRPVQPLNARVVIE 226
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223
   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: All beta proteins (24004)

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Clan: no clan defined [family: Carb_anhydrase] (168)

(-) Gene Ontology  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (CAH_NEIGO | Q50940)
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.
biological process
    GO:0006730    one-carbon metabolic process    The chemical reactions and pathways involving the transfer of one-carbon units in various oxidation states.
cellular component
    GO:0042597    periplasmic space    The region between the inner (cytoplasmic) and outer membrane (Gram-negative Bacteria) or cytoplasmic membrane and cell wall (Fungi and Gram-positive Bacteria).

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        CAH_NEIGO | Q50940: 1koq

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