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(-) Description

Title :  CANDIDA ALBICANS DIHYDROFOLATE REDUCTASE COMPLEX IN WHICH THE DIHYDRONICOTINAMIDE MOIETY OF DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE (NADPH) IS DISPLACED BY 5-{[4-(4-MORPHOLINYL)PHENYL]SULFANYL}-2,4-QUINAZOLINEDIAMIN (GW2021)
 
Authors :  M. Whitlow, A. J. Howard, L. F. Kuyper
Date :  22 Mar 01  (Deposition) - 11 Apr 01  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.85
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Oxidoreductase, Antifungal Target, Reductase, Dihydronicotinamide Displaced (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. Whitlow, A. J. Howard, D. Stewart, K. D. Hardman, J. H. Chan, D. P. Baccanari, R. L. Tansik, J. S. Hong, L. F. Kuyper
X-Ray Crystal Structures Of Candida Albicans Dihydrofolate Reductase: High Resolution Ternary Complexes In Which The Dihydronicotinamide Moiety Of Nadph Is Displaced By An Inhibitor
J. Med. Chem. V. 44 2928 2001
PubMed-ID: 11520201  |  Reference-DOI: 10.1021/JM0101444
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - DIHYDROFOLATE REDUCTASE
    ChainsA, B
    EC Number1.5.1.3
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System PlasmidP1869
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    GeneDFR1
    Organism ScientificCANDIDA ALBICANS
    Organism Taxid5476

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 6)

Asymmetric Unit (3, 6)
No.NameCountTypeFull Name
1MES2Ligand/Ion2-(N-MORPHOLINO)-ETHANESULFONIC ACID
2NDP2Ligand/IonNADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDEPHOSPHATE
3TQ62Ligand/Ion5-(4-MORPHOLIN-4-YL-PHENYLSULFANYL)-2,4-QUINAZOLINEDIAMINE
Biological Unit 1 (3, 3)
No.NameCountTypeFull Name
1MES1Ligand/Ion2-(N-MORPHOLINO)-ETHANESULFONIC ACID
2NDP1Ligand/IonNADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDEPHOSPHATE
3TQ61Ligand/Ion5-(4-MORPHOLIN-4-YL-PHENYLSULFANYL)-2,4-QUINAZOLINEDIAMINE
Biological Unit 2 (3, 3)
No.NameCountTypeFull Name
1MES1Ligand/Ion2-(N-MORPHOLINO)-ETHANESULFONIC ACID
2NDP1Ligand/IonNADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDEPHOSPHATE
3TQ61Ligand/Ion5-(4-MORPHOLIN-4-YL-PHENYLSULFANYL)-2,4-QUINAZOLINEDIAMINE

(-) Sites  (6, 6)

Asymmetric Unit (6, 6)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:30 , LYS A:31 , GLY A:55 , ARG A:56 , LYS A:57 , THR A:58 , LEU A:77 , SER A:78 , ARG A:79 , SER A:94 , GLY A:114 , ALA A:115 , GLU A:116 , ILE A:117 , GLU A:120 , TQ6 A:194 , HOH A:352 , HOH A:395 , HOH A:423 , HOH A:461 , HOH A:492BINDING SITE FOR RESIDUE NDP A 193
2AC2SOFTWAREILE A:9 , VAL A:10 , GLY A:23 , GLU A:32 , ILE A:33 , PHE A:36 , ILE A:112 , ALA A:115 , TYR A:118 , THR A:133 , NDP A:193BINDING SITE FOR RESIDUE TQ6 A 194
3AC3SOFTWAREGLY B:23 , GLY B:55 , ARG B:56 , LYS B:57 , THR B:58 , LEU B:77 , SER B:78 , ARG B:79 , SER B:94 , SER B:95 , ILE B:96 , GLY B:114 , ALA B:115 , GLU B:116 , ILE B:117 , GLU B:120 , THR B:147 , TQ6 B:196 , HOH B:322 , HOH B:350 , HOH B:389 , HOH B:481 , HOH B:490BINDING SITE FOR RESIDUE NDP B 195
4AC4SOFTWAREILE B:9 , VAL B:10 , GLY B:23 , MET B:25 , GLU B:32 , PHE B:36 , THR B:58 , ILE B:112 , TYR B:118 , THR B:133 , NDP B:195 , MES B:202BINDING SITE FOR RESIDUE TQ6 B 196
5AC5SOFTWAREPHE A:36 , LYS A:37 , ARG A:72 , HOH A:363BINDING SITE FOR RESIDUE MES A 201
6AC6SOFTWAREPHE B:36 , LYS B:37 , LEU B:69 , ARG B:72 , TQ6 B:196BINDING SITE FOR RESIDUE MES B 202

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1IA4)

(-) Cis Peptide Bonds  (6, 6)

Asymmetric Unit
No.Residues
1Lys A:14 -Pro A:15
2Arg A:67 -Pro A:68
3Gly A:113 -Gly A:114
4Lys B:14 -Pro B:15
5Arg B:67 -Pro B:68
6Gly B:113 -Gly B:114

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 4)

Asymmetric Unit (2, 4)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_DYR_CANAX_001 *S2LDYR_CANAX  ---  ---A/BL2L
2UniProtVAR_DYR_CANAX_002 *K84EDYR_CANAX  ---  ---A/BE84E
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (2, 2)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_DYR_CANAX_001 *S2LDYR_CANAX  ---  ---AL2L
2UniProtVAR_DYR_CANAX_002 *K84EDYR_CANAX  ---  ---AE84E
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 2 (2, 2)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_DYR_CANAX_001 *S2LDYR_CANAX  ---  ---BL2L
2UniProtVAR_DYR_CANAX_002 *K84EDYR_CANAX  ---  ---BE84E
   * ID not provided by source

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

(-) PROSITE Motifs  (2, 4)

Asymmetric Unit (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1DHFR_2PS51330 Dihydrofolate reductase (DHFR) domain profile.DYR_CANAX5-191
 
  2A:5-191
B:5-191
2DHFR_1PS00075 Dihydrofolate reductase (DHFR) domain signature.DYR_CANAX18-40
 
  2A:18-40
B:18-40
Biological Unit 1 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1DHFR_2PS51330 Dihydrofolate reductase (DHFR) domain profile.DYR_CANAX5-191
 
  1A:5-191
-
2DHFR_1PS00075 Dihydrofolate reductase (DHFR) domain signature.DYR_CANAX18-40
 
  1A:18-40
-
Biological Unit 2 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1DHFR_2PS51330 Dihydrofolate reductase (DHFR) domain profile.DYR_CANAX5-191
 
  1-
B:5-191
2DHFR_1PS00075 Dihydrofolate reductase (DHFR) domain signature.DYR_CANAX18-40
 
  1-
B:18-40

(-) Exons   (0, 0)

(no "Exon" information available for 1IA4)

(-) 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:192
 aligned with DYR_CANAX | P22906 from UniProtKB/Swiss-Prot  Length:192

    Alignment length:192
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190  
            DYR_CANAX     1 MSKPNVAIIVAALKPALGIGYKGKMPWRLRKEIRYFKDVTTRTTKPNTRNAVIMGRKTWESIPQKFRPLPDRLNIILSRSYENKIIDDNIIHASSIESSLNLVSDVERVFIIGGAEIYNELINNSLVSHLLITEIEHPSPESIEMDTFLKFPLESWTKQPKSELQKFVGDTVLEDDIKEGDFTYNYTLWTRK 192
               SCOP domains d1ia4a_ A: Dihydrofolate reductases, eukaryotic type                                                                                                                                             SCOP domains
               CATH domains 1ia4A00 A:1-192 Dihydrofolate Reductase, subunit A                                                                                                                                               CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .....eeeeeeee....eee........hhhhhhhhhhhhhh......eeeeeeehhhhhhhhhhhh.....eeeee......eeee..eeee.hhhhhhh....eeeeeeeehhhhhhhhh....eeeeeeeeee..hhhhh...ee...hhh.eee.hhhhhhhhhh.......eee..eeeeeeeeee. Sec.struct. author
                 SAPs(SNPs) -L---------------------------------------------------------------------------------E------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) ----DHFR_2  PDB: A:5-191 UniProt: 5-191                                                                                                                                                        - PROSITE (1)
                PROSITE (2) -----------------DHFR_1  PDB: A:18-40   -------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ia4 A   1 MLKPNVAIIVAALKPALGIGYKGKMPWRLRKEIRYFKDVTTRTTKPNTRNAVIMGRKTWESIPQKFRPLPDRLNIILSRSYENEIIDDNIIHASSIESSLNLVSDVERVFIIGGAEIYNELINNSLVSHLLITEIEHPSPESIEMDTFLKFPLESWTKQPKSELQKFVGDTVLEDDIKEGDFTYNYTLWTRK 192
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190  

Chain B from PDB  Type:PROTEIN  Length:192
 aligned with DYR_CANAX | P22906 from UniProtKB/Swiss-Prot  Length:192

    Alignment length:192
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190  
            DYR_CANAX     1 MSKPNVAIIVAALKPALGIGYKGKMPWRLRKEIRYFKDVTTRTTKPNTRNAVIMGRKTWESIPQKFRPLPDRLNIILSRSYENKIIDDNIIHASSIESSLNLVSDVERVFIIGGAEIYNELINNSLVSHLLITEIEHPSPESIEMDTFLKFPLESWTKQPKSELQKFVGDTVLEDDIKEGDFTYNYTLWTRK 192
               SCOP domains d1ia4b_ B: Dihydrofolate reductases, eukaryotic type                                                                                                                                             SCOP domains
               CATH domains 1ia4B00 B:1-192 Dihydrofolate Reductase, subunit A                                                                                                                                               CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .....eeeeeeee....eee........hhhhhhhhhhhhhh.......eeeeeehhhhhhhhhhhh....eeeeee......eeee..eeee.hhhhhh........eeeeehhhhhhhhh....eeeeeeeeee..hhhhh...ee...hhh.eee.hhhhhhhhhh.......eee..eeeeeeeeee. Sec.struct. author
                 SAPs(SNPs) -L---------------------------------------------------------------------------------E------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) ----DHFR_2  PDB: B:5-191 UniProt: 5-191                                                                                                                                                        - PROSITE (1)
                PROSITE (2) -----------------DHFR_1  PDB: B:18-40   -------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ia4 B   1 MLKPNVAIIVAALKPALGIGYKGKMPWRLRKEIRYFKDVTTRTTKPNTRNAVIMGRKTWESIPQKFRPLPDRLNIILSRSYENEIIDDNIIHASSIESSLNLVSDVERVFIIGGAEIYNELINNSLVSHLLITEIEHPSPESIEMDTFLKFPLESWTKQPKSELQKFVGDTVLEDDIKEGDFTYNYTLWTRK 192
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190  

   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  (0, 0)

(no "Pfam Domain" information available for 1IA4)

(-) Gene Ontology  (8, 8)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (DYR_CANAX | P22906)
molecular function
    GO:0050661    NADP binding    Interacting selectively and non-covalently with nicotinamide-adenine dinucleotide phosphate, a coenzyme involved in many redox and biosynthetic reactions; binding may be to either the oxidized form, NADP+, or the reduced form, NADPH.
    GO:0004146    dihydrofolate reductase activity    Catalysis of the reaction: 5,6,7,8-tetrahydrofolate + NADP+ = 7,8-dihydrofolate + NADPH + H+.
    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:0006545    glycine biosynthetic process    The chemical reactions and pathways resulting in the formation of glycine, aminoethanoic acid.
    GO:0009165    nucleotide biosynthetic process    The chemical reactions and pathways resulting in the formation of nucleotides, any 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).
    GO:0006730    one-carbon metabolic process    The chemical reactions and pathways involving the transfer of one-carbon units in various oxidation states.
    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.
    GO:0046654    tetrahydrofolate biosynthetic process    The chemical reactions and pathways resulting in the formation of tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.

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 Related Entries

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

UniProtKB/Swiss-Prot
        DYR_CANAX | P229061ai9 1aoe 1ia1 1ia2 1ia3 1m78 1m79 1m7a 3qlr 3qls 3qlw 4h95 4h96 4h97 4hoe 4hof

(-) Related Entries Specified in the PDB File

1ai9 BINARY COMPLEX OF CANDIDA ALBICANS DIHYDROFOLATE REDUCTASE (DHFR) WITH DIHYDRO-NICOTINAMIDE-ADENINE- DINUCLEOTIDEPHOSPHATE (NADPH)
1aoe CANDIDA ALBICANS DIHYDROFOLATE REDUCTASE COMPLEXED WITH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE (NADPH) AND 1,3-DIAMINO-7-(1-ETHYEPROPYE)-7H-PYRRALO-{3,2-F] QUINAZOLINE (GW345)
1ia1 CANDIDA ALBICANS DIHYDROFOLATE REDUCTASE COMPLEXED WITH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE (NADPH) AND 5-[PHENYLSULFANYL]-2,4-QUINAZOLINEDIAMINE (GW997)
1ia2 CANDIDA ALBICANS DIHYDROFOLATE REDUCTASE COMPLEXED WITH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE (NADPH) AND 5-[(4-METHYLPHENYL)SULFANYL]-2,4-QUINAZOLINEDIAMINE (GW578)
1ia3 CANDIDA ALBICANS DIHYDROFOLATE REDUCTASE COMPLEXED IN WHICH THE DIHYDRONICOTINAMIDE MOIETY OF DIHYDRO-NICOTINAMIDE- ADENINE-DINUCLEOTIDE PHOSPHATE (NADPH) IS DISPLACED BY 5- [(4-TERT-BUTYLPHENYL)SULFANYL]-2,4-QUINAZOLINEDIAMINE (GW995)