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(-) Description

Title :  PURINE NUCLEOSIDE HYDROLASE
 
Authors :  M. Degano, D. N. Gopaul, G. Scapin, V. L. Schramm, J. C. Sacchettini
Date :  18 Dec 95  (Deposition) - 17 Aug 96  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Keywords :  Hydrolase, Purine Nucleoside Hydrolase, Purine Nucleosidase, Iu-Nh (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. Degano, D. N. Gopaul, G. Scapin, V. L. Schramm, J. C. Sacchettini
Three-Dimensional Structure Of The Inosine-Uridine Nucleoside N-Ribohydrolase From Crithidia Fasciculata.
Biochemistry V. 35 5971 1996
PubMed-ID: 8634238  |  Reference-DOI: 10.1021/BI952999M
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - INOSINE-URIDINE NUCLEOSIDE N-RIBOHYDROLASE
    ChainsA, B
    EC Number3.2.2.1
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System GeneIU-NH FROM C.FASCICULATA
    Expression System PlasmidPET3D-IUNH
    Expression System Taxid562
    GeneIU-NH FROM C.FASCICULATA
    MutationYES
    Organism ScientificCRITHIDIA FASCICULATA
    Organism Taxid5656
    SynonymPURINE NUCLEOSIDE HYDROLASE, INOSINE-URIDINE NUCLEOSIDASE, IU-NH

 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
1K2Ligand/IonPOTASSIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1K-1Ligand/IonPOTASSIUM ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:10 , ASP A:15 , THR A:126 , ASP A:242 , HOH A:902BINDING SITE FOR RESIDUE K A 900
2AC2SOFTWAREASP B:10 , ASP B:15 , THR B:126 , ASP B:242BINDING SITE FOR RESIDUE K B 933
3ACTUNKNOWNASP A:10 , ASP A:14 , ASP A:15 , HIS A:241 , ASP A:242 , ASP B:10 , ASP B:14 , ASP B:15 , HIS B:241 , ASP B:242POCKET AT THE C-TERMINAL END OF THE BETA SHEET.

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1MAS)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 2)

Asymmetric Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IUNHPS01247 Inosine-uridine preferring nucleoside hydrolase family signature.IUNH_CRIFA8-18
 
  2A:8-18
B:8-18
Biological Unit 1 (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IUNHPS01247 Inosine-uridine preferring nucleoside hydrolase family signature.IUNH_CRIFA8-18
 
  4A:8-18
B:8-18

(-) Exons   (0, 0)

(no "Exon" information available for 1MAS)

(-) 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:308
 aligned with IUNH_CRIFA | Q27546 from UniProtKB/Swiss-Prot  Length:315

    Alignment length:314
                                    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    
           IUNH_CRIFA     2 PKKIILDCDPGLDDAVAILLAHGNPEIELLAITTVVGNQTLAKVTRNAQLVADIAGITGVPIAAGCDKPLVRKIMTAGHIHGESGMGTVAYPAEFKNKVDERHAVNLIIDLVMSHEPKTITLVPTGGLTNIAMAARLEPRIVDRVKEVVLMGGGYHEGNATSVAEFNIIIDPEAAHIVFNESWQVTMVGLDLTHQALATPPILQRVKEVDTNPARFMLEIMDYYTKIYQSNRYMAAAAVHDPCAVAYVIDPSVMTTERVPVDIELTGKLTLGMTVADFRNPRPEHCHTQVAVKLDFEKFWGLVLDALERIGDPQ 315
               SCOP domains d1masa_ A: Inosine-uridine nucleoside N-ribohydrolase, IU-NH                                                                                                                                                                                                                                                               SCOP domains
               CATH domains 1masA00 A:2-315 Inosine-uridine Nucleoside N-ribohydrolase, chain A                                                                                                                                                                                                                                                        CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee...hhhhhhhhhhhh....eeeeeee......hhhhhhhhhhhhhh......eeee............------.....................hhhhhhhhhhh.....eeeee....hhhhhhhhh.hhhhhh...eeee..............hhhhhhhhhhhhhhh....eeee.hhhhhh....hhhhhhhhhh..hhhhhhhhhhhhhhhhhh...........hhhhhhhhh.hhheeeee..eee..........eee...........eeeeeee.hhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------IUNH       --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1mas A   2 AKKIILDCDPGLDDAVAILLAHGNPEIELLAITTVVGNQTLAKVTRNAQLVADIAGITGVPIAAGCDKPLVRKIMT------ESGMGTVAYPAEFKNKVDERHAVNLIIDLVMSHEPKTITLVPTGGLTNIAMAARLEPRIVDRVKEVVLMGGGYHEGNATSVAEFNIIIDPEAAHIVFNESWQVTMVGLDLTHQALATPPILQRVKEVDTNPARFMLEIMDYYTKIYQSNRYMAAAAVHDPCAVAYVIDPSVMTTERVPVDIELTGKLTLGMTVADFRNPRPEHCHTQVAVKLDFEKFWGLVLDALERIGDPQ 315
                                    11        21        31        41        51        61        71     |   -  |     91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311    
                                                                                                      77     84                                                                                                                                                                                                                                       

Chain B from PDB  Type:PROTEIN  Length:295
 aligned with IUNH_CRIFA | Q27546 from UniProtKB/Swiss-Prot  Length:315

    Alignment length:314
                                    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    
           IUNH_CRIFA     2 PKKIILDCDPGLDDAVAILLAHGNPEIELLAITTVVGNQTLAKVTRNAQLVADIAGITGVPIAAGCDKPLVRKIMTAGHIHGESGMGTVAYPAEFKNKVDERHAVNLIIDLVMSHEPKTITLVPTGGLTNIAMAARLEPRIVDRVKEVVLMGGGYHEGNATSVAEFNIIIDPEAAHIVFNESWQVTMVGLDLTHQALATPPILQRVKEVDTNPARFMLEIMDYYTKIYQSNRYMAAAAVHDPCAVAYVIDPSVMTTERVPVDIELTGKLTLGMTVADFRNPRPEHCHTQVAVKLDFEKFWGLVLDALERIGDPQ 315
               SCOP domains d1masb_ B: Inosine-uridine nucleoside N-ribohydrolase, IU-NH                                                                                                                                                                                                                                                               SCOP domains
               CATH domains 1masB00 B:2-315 Inosine-uridine Nucleoside N-ribohydrolase, chain A                                                                                                                                                                                                                                                        CATH domains
           Pfam domains (1) -IU_nuc_hydro-1masB01 B:3-312                                                                                                                                                                                                                                                                                          --- Pfam domains (1)
           Pfam domains (2) -IU_nuc_hydro-1masB02 B:3-312                                                                                                                                                                                                                                                                                          --- Pfam domains (2)
         Sec.struct. author ..eeeeee...hhhhhhhhhhh.....eeeeeee......hhhhhhhhhhhhhhh.....eeee............-------------------........hhhhhhhhhh......eeeee....hhhhhhhhh.hhhhhh...eee..............hhhhhh..hhhhhhhhh...eee..hhhh......hhhhhhhhhh..hhhhhhhhhhhhhhhhhhhh.........hhhhhhhhh.hhh......eeee..........eeee..........eee.....hhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------IUNH       --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1mas B   2 AKKIILDCDPGLDDAVAILLAHGNPEIELLAITTVVGNQTLAKVTRNAQLVADIAGITGVPIAAGCDKPLVRKIMT-------------------KNKVDERHAVNLIIDLVMSHEPKTITLVPTGGLTNIAMAARLEPRIVDRVKEVVLMGGGYHEGNATSVAEFNIIIDPEAAHIVFNESWQVTMVGLDLTHQALATPPILQRVKEVDTNPARFMLEIMDYYTKIYQSNRYMAAAAVHDPCAVAYVIDPSVMTTERVPVDIELTGKLTLGMTVADFRNPRPEHCHTQVAVKLDFEKFWGLVLDALERIGDPQ 315
                                    11        21        31        41        51        61        71     |   -         -     | 101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311    
                                                                                                      77                  97                                                                                                                                                                                                                          

   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 Unit

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (1, 2)

Asymmetric Unit

(-) Gene Ontology  (6, 6)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (IUNH_CRIFA | Q27546)
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:0016799    hydrolase activity, hydrolyzing N-glycosyl compounds    Catalysis of the hydrolysis of any N-glycosyl bond.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    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:0009117    nucleotide metabolic process    The chemical reactions and pathways involving a nucleotide, a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the glycose moiety; may be mono-, di- or triphosphate; this definition includes cyclic nucleotides (nucleoside cyclic phosphates).

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 Related Entries

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

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        IUNH_CRIFA | Q275462mas

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