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(-) Description

Title :  CRYSTAL STRUCTURE OF PTERIDINE REDUCTASE (PTR1) FROM LEISHMANIA DONOVANI
 
Authors :  K. L. Barrack, L. B. Tulloch, L. A. Burke, P. K. Fyfe, W. N. Hunter
Date :  24 Aug 10  (Deposition) - 12 Jan 11  (Release) - 19 Jan 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Keywords :  Oxidoreductase, Antifolates, Short-Chain Reductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  K. L. Barrack, L. B. Tulloch, L. A. Burke, P. K. Fyfe, W. N. Hunter
Structure Of Recombinant Leishmania Donovani Pteridine Reductase Reveals A Disordered Active Site.
Acta Crystallogr. , Sect. F V. 67 33 2011
PubMed-ID: 21206018  |  Reference-DOI: 10.1107/S174430911004724X

(-) Compounds

Molecule 1 - PTERIDINE REDUCTASE
    Chains: A, B
    EC Number: 1.5.1.33
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Fragment: RESIDUES 1-288
    Mutation: YES
    Organism Scientific: LEISHMANIA DONOVANI
    Organism Taxid: 5661

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (2x): AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric Unit (1, 2)
No.NameCountTypeFull Name
1SO42Ligand/IonSULFATE ION
Biological Unit 1 (1, 4)
No.NameCountTypeFull Name
1SO44Ligand/IonSULFATE ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETYR A:37 , HIS A:38 , ARG A:39 , SER A:40BINDING SITE FOR RESIDUE SO4 A1281
2AC2SOFTWARELYS B:16 , HIS B:38 , ARG B:39 , SER B:40BINDING SITE FOR RESIDUE SO4 B1281

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2XOX)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2XOX)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2XOX)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2XOX)

(-) Exons   (0, 0)

(no "Exon" information available for 2XOX)

(-) 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:216
 aligned with Q6QDB5_LEIDO | Q6QDB5 from UniProtKB/TrEMBL  Length:288

    Alignment length:276
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274      
         Q6QDB5_LEIDO     5 TVPVALVTGAAKRLGSGIAEGLHAEGYAVCLHYHRSAAEANTLAATLNARRPNSAITVQADLSNVAKAPAGGADGAAPVTLFKRCADLVAACYTHWGRCDVLVNNASSFYPTPLLRKDEDGHVPCVGDREAMEAAAADLFGSNAMAPYFLIKAFAHRVADTPAEQRGTNYSIVNMVDAMTSQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGLSVLADDMPPAVREDYRSKVPLYQRDSSAAEVSDVVIFLCSSKAKYVTGTCVKVD 280
               SCOP domains d2xoxa_ A: automated matches                                                                                                                                                                                                                                                         SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ...eeee.....hhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhhhh...eeeee......-----------...hhhhhhhhhhhhhhhhhh...eeee...---------------------.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeeee..hhhhh...hhhhhhhhhhhhhhhhhhhhhhhh...eeeeeeee..----------------------------..hhhhhhhhhhhhhh.....eeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2xox A   5 TVPVALVTGAAKRLGSGIAEGLHAEGYAVCLHYHRSAAEANTLAATLNARRPNSAIPVQADLSNV-----------APVTLFKRCADLVAACYTHWGRCDVLVNNAS---------------------REAMEAAAADLFGSNAMAPYFLIKAFAHRVADTPAEQRGTNYSIVNMVDAMTSQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGL----------------------------AEVSDVVIFLCSSKAKYVTGTCVKVD 280
                                    14        24        34        44        54        64    |    -      | 84        94       104      |  -         -       134       144       154       164       174       184       194       204       214       224 |       -         -         -|      264       274      
                                                                                           69          81                           111                   133                                                                                          226                          255                         


Chain B from PDB  Type:PROTEIN  Length:216
 aligned with Q6QDB5_LEIDO | Q6QDB5 from UniProtKB/TrEMBL  Length:288

    Alignment length:276
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274      
         Q6QDB5_LEIDO     5 TVPVALVTGAAKRLGSGIAEGLHAEGYAVCLHYHRSAAEANTLAATLNARRPNSAITVQADLSNVAKAPAGGADGAAPVTLFKRCADLVAACYTHWGRCDVLVNNASSFYPTPLLRKDEDGHVPCVGDREAMEAAAADLFGSNAMAPYFLIKAFAHRVADTPAEQRGTNYSIVNMVDAMTSQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGLSVLADDMPPAVREDYRSKVPLYQRDSSAAEVSDVVIFLCSSKAKYVTGTCVKVD 280
               SCOP domains d2xoxb_ B: automated matches                                                                                                                                                                                                                                                         SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
           Pfam domains (1) ------------------------------------------------------------------           ----------------------------                       -------------adh_short_C2-2xoxB01 B:146-280                                                                                                          Pfam domains (1)
           Pfam domains (2) ------------------------------------------------------------------           ----------------------------                       -------------adh_short_C2-2xoxB02 B:146-280                                                                                                          Pfam domains (2)
         Sec.struct. author ...eeee....hhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhhhh...eeeee.......-----------..hhhhhhhhhhhhhhhhhh...eeee.-----------------------hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeeee..........hhhhhhhhhhhhhhhhhhhhhhh....eeeeeeee..--------------------------hhhhhhhhhhhhhhhhhh.....eeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2xox B   5 TVPVALVTGAAKRLGSGIAEGLHAEGYAVCLHYHRSAAEANTLAATLNARRPNSAIPVQADLSNVA-----------PVTLFKRCADLVAACYTHWGRCDVLVNN-----------------------REAMEAAAADLFGSNAMAPYFLIKAFAHRVADTPAEQRGTNYSIVNMVDAMTSQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGL--------------------------SAAEVSDVVIFLCSSKAKYVTGTCVKVD 280
                                    14        24        34        44        54        64     |   -       |84        94       104    |    -         -       134       144       154       164       174       184       194       204       214       224 |       -         -       254       264       274      
                                                                                            70          82                        109                     133                                                                                          226                        253
   Legend:   → Mismatch (orange background)
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  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 Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2XOX)

(-) Pfam Domains  (1, 2)

Asymmetric Unit
(-)
Clan: NADP_Rossmann (1239)

(-) Gene Ontology  (2, 2)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (Q6QDB5_LEIDO | Q6QDB5)
molecular function
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.

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