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(-) Description

Title :  CRYSTAL STRUCTURE OF PURINE NUCLEOSIDE PHOSPHORYLASE FROM MYCOBACTERIUM TUBERCULOSIS IN COMPLEX WITH A TRANSITION-STATE INHIBITOR
 
Authors :  W. Shi, L. A. Basso, P. C. Tyler, R. H. Furneaux, J. S. Blanchard, S. C. Almo, V. L. Schramm
Date :  20 Oct 00  (Deposition) - 01 Aug 01  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.75
Chains :  Asym./Biol. Unit :  A,B,C
Keywords :  Trimer, Transition-State Complex, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  W. Shi, L. A. Basso, D. S. Santos, P. C. Tyler, R. H. Furneaux, J. S. Blanchard, S. C. Almo, V. L. Schramm
Structures Of Purine Nucleoside Phosphorylase From Mycobacterium Tuberculosis In Complexes With Immucillin-H And Its Pieces.
Biochemistry V. 40 8204 2001
PubMed-ID: 11444966  |  Reference-DOI: 10.1021/BI010585P
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PURINE NUCLEOSIDE PHOSPHORYLASE
    Chains: A, B, C
    EC Number: 2.4.2.1
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET-23A(+)
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Organism Scientific: MYCOBACTERIUM TUBERCULOSIS
    Organism Taxid: 1773

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit : ABC

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 6)

Asymmetric/Biological Unit (2, 6)
No.NameCountTypeFull Name
1IMH3Ligand/Ion1,4-DIDEOXY-4-AZA-1-(S)-(9-DEAZAHYPOXANTHIN-9-YL)-D-RIBITOL
2PO43Ligand/IonPHOSPHATE ION

(-) Sites  (6, 6)

Asymmetric Unit (6, 6)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLY A:35 , SER A:36 , HIS A:68 , ARG A:88 , HIS A:90 , ASN A:119 , ALA A:120 , SER A:208 , IMH A:351 , HOH A:461BINDING SITE FOR RESIDUE PO4 A 301
2AC2SOFTWAREGLY B:35 , SER B:36 , HIS B:68 , ARG B:88 , HIS B:90 , ASN B:119 , ALA B:120 , SER B:208 , IMH B:352 , HOH B:432BINDING SITE FOR RESIDUE PO4 B 302
3AC3SOFTWAREGLY C:35 , SER C:36 , HIS C:68 , ARG C:88 , HIS C:90 , ASN C:119 , ALA C:120 , SER C:208 , IMH C:353 , HOH C:510BINDING SITE FOR RESIDUE PO4 C 303
4AC4SOFTWAREHIS A:90 , TYR A:92 , ALA A:120 , ALA A:121 , GLY A:122 , TYR A:188 , GLU A:189 , VAL A:205 , GLY A:206 , MET A:207 , THR A:230 , ASN A:231 , HIS A:243 , PO4 A:301 , HOH A:501 , PHE B:153BINDING SITE FOR RESIDUE IMH A 351
5AC5SOFTWAREHIS B:90 , TYR B:92 , ALA B:120 , GLY B:122 , TYR B:188 , GLU B:189 , GLY B:206 , MET B:207 , ASN B:231 , LEU B:241 , HIS B:243 , PO4 B:302 , HOH B:521 , PHE C:153BINDING SITE FOR RESIDUE IMH B 352
6AC6SOFTWAREPHE A:153 , HIS C:90 , TYR C:92 , ALA C:120 , GLY C:122 , TYR C:188 , GLU C:189 , GLY C:206 , MET C:207 , ASN C:231 , LEU C:241 , HIS C:243 , PO4 C:303 , HOH C:420BINDING SITE FOR RESIDUE IMH C 353

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1G2O)

(-) Cis Peptide Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1Gly A:185 -Pro A:186
2Gly B:185 -Pro B:186
3Gly C:185 -Pro C:186

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1G2O)

(-) PROSITE Motifs  (1, 3)

Asymmetric/Biological Unit (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PNP_MTAP_2PS01240 Purine and other phosphorylases family 2 signature.PUNA_MYCTO83-124
 
 		  3A:83-124
B:83-124
C:83-124
PUNA_MYCTU83-124
 
 		  3A:83-124
B:83-124
C:83-124

(-) Exons   (0, 0)

(no "Exon" information available for 1G2O)

(-) 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:262
 aligned with PUNA_MYCTO | P9WP00 from UniProtKB/Swiss-Prot  Length:268

    Alignment length:262
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  
           PUNA_MYCTO     7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
               SCOP domains d1g2oa_ A: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                                                        SCOP domains
               CATH domains 1g2oA00 A:7-268  [code=3.40.50.1580, no name defined]                                                                                                                                                                                                                  CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhhhh...eeee.hhh.............eeeeeee..eeeeeee...hhhhh.hhhhhhhhhhhhhhh...eeeeeeeeee.........eeeeeeeee...................hhhhhhhhhhhh...eeeeeee.......hhhhhhhhhhhh..eee..hhhhhhhhhhh..eeeeeeeeeee.........hhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ----------------------------------------------------------------------------PNP_MTAP_2  PDB: A:83-124 UniProt: 83-124 ------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1g2o A   7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  


Chain A from PDB  Type:PROTEIN  Length:262
 aligned with PUNA_MYCTU | P9WP01 from UniProtKB/Swiss-Prot  Length:268

    Alignment length:262
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  
           PUNA_MYCTU     7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
               SCOP domains d1g2oa_ A: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                                                        SCOP domains
               CATH domains 1g2oA00 A:7-268  [code=3.40.50.1580, no name defined]                                                                                                                                                                                                                  CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhhhh...eeee.hhh.............eeeeeee..eeeeeee...hhhhh.hhhhhhhhhhhhhhh...eeeeeeeeee.........eeeeeeeee...................hhhhhhhhhhhh...eeeeeee.......hhhhhhhhhhhh..eee..hhhhhhhhhhh..eeeeeeeeeee.........hhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------PNP_MTAP_2  PDB: A:83-124 UniProt: 83-124 ------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1g2o A   7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  


Chain B from PDB  Type:PROTEIN  Length:262
 aligned with PUNA_MYCTO | P9WP00 from UniProtKB/Swiss-Prot  Length:268

    Alignment length:262
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  
           PUNA_MYCTO     7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
               SCOP domains d1g2ob_ B: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                                                        SCOP domains
               CATH domains 1g2oB00 B:7-268  [code=3.40.50.1580, no name defined]                                                                                                                                                                                                                  CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhhhh...eeee.hhh.............eeeeeee..eeeeeee...hhhhh.hhhhhhhhhhhhhhh...eeeeeeeeee.........eeeeeeeee...................hhhhhhhhhhhh...eeeeeee.......hhhhhhhhhhh...eee..hhhhhhhhhhh..eeeeeeeeeee.........hhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ----------------------------------------------------------------------------PNP_MTAP_2  PDB: B:83-124 UniProt: 83-124 ------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1g2o B   7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  


Chain B from PDB  Type:PROTEIN  Length:262
 aligned with PUNA_MYCTU | P9WP01 from UniProtKB/Swiss-Prot  Length:268

    Alignment length:262
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  
           PUNA_MYCTU     7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
               SCOP domains d1g2ob_ B: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                                                        SCOP domains
               CATH domains 1g2oB00 B:7-268  [code=3.40.50.1580, no name defined]                                                                                                                                                                                                                  CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhhhh...eeee.hhh.............eeeeeee..eeeeeee...hhhhh.hhhhhhhhhhhhhhh...eeeeeeeeee.........eeeeeeeee...................hhhhhhhhhhhh...eeeeeee.......hhhhhhhhhhh...eee..hhhhhhhhhhh..eeeeeeeeeee.........hhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------PNP_MTAP_2  PDB: B:83-124 UniProt: 83-124 ------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1g2o B   7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  


Chain C from PDB  Type:PROTEIN  Length:262
 aligned with PUNA_MYCTO | P9WP00 from UniProtKB/Swiss-Prot  Length:268

    Alignment length:262
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  
           PUNA_MYCTO     7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
               SCOP domains d1g2oc_ C: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                                                        SCOP domains
               CATH domains 1g2oC00 C:7-268  [code=3.40.50.1580, no name defined]                                                                                                                                                                                                                  CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhhhh...eeee.hhh.............eeeeeee..eeeeeee...hhhhh.hhhhhhhhhhhhhhh...eeeeeeeeee.........eeeeeeeee...................hhhhhhhhhhhh...eeeeeee.......hhhhhhhhhhhh..eee..hhhhhhhhhhh..eeeeeeeeeee.........hhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ----------------------------------------------------------------------------PNP_MTAP_2  PDB: C:83-124 UniProt: 83-124 ------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1g2o C   7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  


Chain C from PDB  Type:PROTEIN  Length:262
 aligned with PUNA_MYCTU | P9WP01 from UniProtKB/Swiss-Prot  Length:268

    Alignment length:262
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  
           PUNA_MYCTU     7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
               SCOP domains d1g2oc_ C: Purine nucleoside phosphorylase, PNP                                                                                                                                                                                                                        SCOP domains
               CATH domains 1g2oC00 C:7-268  [code=3.40.50.1580, no name defined]                                                                                                                                                                                                                  CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhhhh...eeee.hhh.............eeeeeee..eeeeeee...hhhhh.hhhhhhhhhhhhhhh...eeeeeeeeee.........eeeeeeeee...................hhhhhhhhhhhh...eeeeeee.......hhhhhhhhhhhh..eee..hhhhhhhhhhh..eeeeeeeeeee.........hhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------PNP_MTAP_2  PDB: C:83-124 UniProt: 83-124 ------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1g2o C   7 DPDELARRAAQVIADRTGIGEHDVAVVLGSGWLPAVAALGSPTTVLPQAELPGFVPPTAAGHAGELLSVPIGAHRVLVLAGRIHAYEGHDLRYVVHPVRAARAAGAQIMVLTNAAGGLRADLQVGQPVLISDHLNLTARSPLVGGEFVDLTDAYSPRLRELARQSDPQLAEGVYAGLPGPHYETPAEIRMLQTLGADLVGMSTVHETIAARAAGAEVLGVSLVTNLAAGITGEPLSHAEVLAAGAASATRMGALLADVIARF 268
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266
   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, 3)

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

(-) CATH Domains  (1, 3)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1G2O)

(-) Gene Ontology  (11, 18)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B,C   (PUNA_MYCTU | P9WP01)
molecular function
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0004731    purine-nucleoside phosphorylase activity    Catalysis of the reaction: purine nucleoside + phosphate = purine + alpha-D-ribose 1-phosphate.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0016757    transferase activity, transferring glycosyl groups    Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor).
    GO:0016763    transferase activity, transferring pentosyl groups    Catalysis of the transfer of a pentosyl group from one compound (donor) to another (acceptor).
biological process
    GO:0006154    adenosine catabolic process    The chemical reactions and pathways resulting in the breakdown of adenosine, adenine riboside, a ribonucleoside found widely distributed in cells of every type as the free nucleoside and in combination in nucleic acids and various nucleoside coenzymes.
    GO:0006161    deoxyguanosine catabolic process    The chemical reactions and pathways resulting in the breakdown of deoxyguanosine, a nucleoside consisting of the base guanine and the sugar deoxyribose.
    GO:0006139    nucleobase-containing compound metabolic process    Any cellular metabolic process involving nucleobases, nucleosides, nucleotides and nucleic acids.
    GO:0009116    nucleoside metabolic process    The chemical reactions and pathways involving a nucleoside, a nucleobase linked to either beta-D-ribofuranose (a ribonucleoside) or 2-deoxy-beta-D-ribofuranose, (a deoxyribonucleoside), e.g. adenosine, guanosine, inosine, cytidine, uridine and deoxyadenosine, deoxyguanosine, deoxycytidine and thymidine (= deoxythymidine).
    GO:0043101    purine-containing compound salvage    Any process that generates a purine-containing compound, any nucleobase, nucleoside, nucleotide or nucleic acid that contains a purine base, from derivatives of them without de novo synthesis.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

Chain A,B,C   (PUNA_MYCTO | P9WP00)
molecular function
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0004731    purine-nucleoside phosphorylase activity    Catalysis of the reaction: purine nucleoside + phosphate = purine + alpha-D-ribose 1-phosphate.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0016757    transferase activity, transferring glycosyl groups    Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor).
    GO:0016763    transferase activity, transferring pentosyl groups    Catalysis of the transfer of a pentosyl group from one compound (donor) to another (acceptor).
biological process
    GO:0006139    nucleobase-containing compound metabolic process    Any cellular metabolic process involving nucleobases, nucleosides, nucleotides and nucleic acids.
    GO:0009116    nucleoside metabolic process    The chemical reactions and pathways involving a nucleoside, a nucleobase linked to either beta-D-ribofuranose (a ribonucleoside) or 2-deoxy-beta-D-ribofuranose, (a deoxyribonucleoside), e.g. adenosine, guanosine, inosine, cytidine, uridine and deoxyadenosine, deoxyguanosine, deoxycytidine and thymidine (= deoxythymidine).

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  2.4.2.1
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 Related Entries

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

UniProtKB/Swiss-Prot
        PUNA_MYCTO | P9WP00: 1i80 1n3i 3iom 3scz
        PUNA_MYCTU | P9WP01: 1i80 1n3i 3iom 3scz

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1G2O)