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(-) Description

Title :  PNB ESTERASE
 
Authors :  B. Spiller, A. Gershenson, F. Arnold, R. Stevens
Date :  12 Jul 99  (Deposition) - 21 Jul 99  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.50
Chains :  Asym./Biol. Unit :  A
Keywords :  Alpha-Beta Hydrolase Directed Evolution (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  B. Spiller, A. Gershenson, F. H. Arnold, R. C. Stevens
A Structural View Of Evolutionary Divergence.
Proc. Natl. Acad. Sci. Usa V. 96 12305 1999
PubMed-ID: 10535917  |  Reference-DOI: 10.1073/PNAS.96.22.12305
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PARA-NITROBENZYL ESTERASE
    ChainsA
    EC Number3.1.1.-
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Organism ScientificBACILLUS SUBTILIS
    Organism Taxid1423
    Other DetailsTEMPERATURE INDUCED
    SynonymPNB ESTERASE

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name
1SO41Ligand/IonSULFATE ION
2ZN1Ligand/IonZINC ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:322 , SER A:323 , THR A:326BINDING SITE FOR RESIDUE SO4 A 490
2AC2SOFTWARETHR A:2 , HIS A:3 , HIS A:388 , HOH A:512 , HOH A:619BINDING SITE FOR RESIDUE ZN A 500

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1QE3)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Pro A:392 -Pro A:393

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (11, 11)

Asymmetric/Biological Unit (11, 11)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_PNBA_BACSU_001 *S59PPNBA_BACSU  ---  ---AP59P
02UniProtVAR_PNBA_BACSU_002 *K95QPNBA_BACSU  ---  ---AQ95Q
03UniProtVAR_PNBA_BACSU_003 *N150DPNBA_BACSU  ---  ---AD150D
04UniProtVAR_PNBA_BACSU_004 *S230APNBA_BACSU  ---  ---AA230A
05UniProtVAR_PNBA_BACSU_005 *G242SPNBA_BACSU  ---  ---AS242S
06UniProtVAR_PNBA_BACSU_006 *K246RPNBA_BACSU  ---  ---AR246R
07UniProtVAR_PNBA_BACSU_007 *S251APNBA_BACSU  ---  ---AA251A
08UniProtVAR_PNBA_BACSU_008 *A291SPNBA_BACSU  ---  ---AS291S
09UniProtVAR_PNBA_BACSU_009 *V343APNBA_BACSU  ---  ---AA343A
10UniProtVAR_PNBA_BACSU_010 *K390EPNBA_BACSU  ---  ---AE390E
11UniProtVAR_PNBA_BACSU_011 *L463VPNBA_BACSU  ---  ---AV463V
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CARBOXYLESTERASE_B_2PS00941 Carboxylesterases type-B signature 2.PNBA_BACSU80-90  1A:80-90
2CARBOXYLESTERASE_B_1PS00122 Carboxylesterases type-B serine active site.PNBA_BACSU176-191  1A:176-191

(-) Exons   (0, 0)

(no "Exon" information available for 1QE3)

(-) 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:467
 aligned with PNBA_BACSU | P37967 from UniProtKB/Swiss-Prot  Length:489

    Alignment length:483
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481   
           PNBA_BACSU     2 THQIVTTQYGKVKGTTENGVHKWKGIPYAKPPVGQWRFKAPEPPEVWEDVLDATAYGSICPQPSDLLSLSYTELPRQSEDCLYVNVFAPDTPSKNLPVMVWIHGGAFYLGAGSEPLYDGSKLAAQGEVIVVTLNYRLGPFGFLHLSSFNEAYSDNLGLLDQAAALKWVRENISAFGGDPDNVTVFGESAGGMSIAALLAMPAAKGLFQKAIMESGASRTMTKEQAASTSAAFLQVLGINEGQLDKLHTVSAEDLLKAADQLRIAEKENIFQLFFQPALDPKTLPEEPEKAIAEGAASGIPLLIGTTRDEGYLFFTPDSDVHSQETLDAALEYLLGKPLAEKVADLYPRSLESQIHMMTDLLFWRPAVAYASAQSHYAPVWMYRFDWHPKKPPYNKAFHALELPFVFGNLDGLERMAKAEITDEVKQLSHTIQSAWITFAKTGNPSTEAVNWPAYHEETRETLILDSEITIENDPESEKRQKLF 484
               SCOP domains d1qe3a_ A: Thermophilic para-nitrobenzyl esterase (PNB esterase)                                                                                                                                                                                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains 1qe3A00 A:2-484  [code=3.40.50.1820, no name defined]                                                                                                                                                                                                                                                                                                                                                                                                                                               CATH domains
               Pfam domains COesterase-1qe3A01 A:2-484                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Pfam domains
         Sec.struct. author ...eeee..eeee.eee..eeeeeeee.....hhhhh............eee............---------.........eeeeeee......eeeeeee...........hhhhhhhhhhhhhh.eeeee...hhhhhh............hhhhhhhhhhhhhhhhhhhhh.eeeeeeeeeeehhhhhhhhhhh.hhhhh....eeeee.......hhhhhhhhhhhhhhhhh....hhhhhhh.hhhhhhhhhhhhhh......................hhhhhhhh.......eeeeee.hhhhhh........hhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhh....eeeeee................hhhhhhh.....-------.hhhhhhhhhhhhhhhhhhhhhh.................eeeee....eeee..hhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------P-----------------------------------Q------------------------------------------------------D-------------------------------------------------------------------------------A-----------S---R----A---------------------------------------S---------------------------------------------------A----------------------------------------------E------------------------------------------------------------------------V--------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------CARBOXYLEST-------------------------------------------------------------------------------------CARBOXYLESTERASE----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qe3 A   2 THQIVTTQYGKVKGTTENGVHKWKGIPYAKPPVGQWRFKAPEPPEVWEDVLDATAYGPICPQPS---------LPRQSEDCLYVNVFAPDTPSQNLPVMVWIHGGAFYLGAGSEPLYDGSKLAAQGEVIVVTLNYRLGPFGFLHLSSFDEAYSDNLGLLDQAAALKWVRENISAFGGDPDNVTVFGESAGGMSIAALLAMPAAKGLFQKAIMESGASRTMTKEQAASTAAAFLQVLGINESQLDRLHTVAAEDLLKAADQLRIAEKENIFQLFFQPALDPKTLPEEPEKSIAEGAASGIPLLIGTTRDEGYLFFTPDSDVHSQETLDAALEYLLGKPLAEKAADLYPRSLESQIHMMTDLLFWRPAVAYASAQSHYAPVWMYRFDWHPEKPPYNKAFHALELPFVFGNLDGL-------ITDEVKQLSHTIQSAWITFAKTGNPSTEAVNWPAYHEETRETVILDSEITIENDPESEKRQKLF 484
                                    11        21        31        41        51        61   |     -   |    81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411 |     421       431       441       451       461       471       481   
                                                                                          65        75                                                                                                                                                                                                                                                                                                                                               413     421                                                               

   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, 1)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit

(-) Gene Ontology  (3, 3)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (PNBA_BACSU | P37967)
molecular function
    GO:0052689    carboxylic ester hydrolase activity    Catalysis of the hydrolysis of a carboxylic ester bond.
    GO:0004104    cholinesterase activity    Catalysis of the reaction: an acylcholine + H2O = choline + a carboxylic acid anion.
    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.

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 Related Entries

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

UniProtKB/Swiss-Prot
        PNBA_BACSU | P379671c7i 1c7j

(-) Related Entries Specified in the PDB File

1c7i PNB ESTERASE, 13 MUTATIONS
1c7j PNB ESTERASE, 7 MUTATIONS