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(-) Description

Title :  CRYSTAL STRUCTURES OF TRANSITION STATE ANALOGUE INHIBITORS OF INOSINE MONOPHOSPHATE CYCLOHYDROLASE
 
Authors :  L. Xu, Y. Chong, I. Hwang, A. D'Onofrio, K. Amore, G. P. Beardsley, C. Li, A. J. Olson, D. L. Boger, I. A. Wilson
Date :  15 Sep 05  (Deposition) - 21 Nov 06  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.10
Chains :  Asym. Unit :  A,B,C,D
Biol. Unit 1:  A,B  (1x)
Biol. Unit 2:  C,D  (1x)
Keywords :  Atic, Impch, Structure-Base, Transition State Analogue, Inhibitor, Transferase, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  L. Xu, Y. Chong, I. Hwang, A. D'Onofrio, K. Amore, G. P. Beardsley, C. Li A. J. Olson, D. L. Boger, I. A. Wilson
Structure-Based Design, Synthesis, Evaluation, And Crystal Structures Of Transition State Analogue Inhibitors Of Inosine Monophosphate Cyclohydrolase.
J. Biol. Chem. V. 282 13033 2007
PubMed-ID: 17324932  |  Reference-DOI: 10.1074/JBC.M607293200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - BIFUNCTIONAL PURINE BIOSYNTHESIS PROTEIN PURH
    Chains: A, B, C, D
    EC Number: 3.5.4.10, 2.1.2.3
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET28A
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: ATIC, PURH
    Organism Common: CHICKEN
    Organism Scientific: GALLUS GALLUS
    Organism Taxid: 9031
    Other Details: INCLUDES PHOSPHORIBOSYLAMINOIMIDAZOLECARBOXAMIDE FORMYLTRANSFERASE (AICAR TRANSFORMYLASE), IMP CYCLOHYDROLASE (INOSINICASE, IMP SYNTHETASE, ATIC)

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit : ABCD
Biological Unit 1 (1x): AB  
Biological Unit 2 (1x):   CD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 8)

Asymmetric Unit (3, 8)
No.NameCountTypeFull Name
113A2Ligand/Ion7-(3,4-DIHYDROXY-5R-HYDROXYMETHYLTETRAHYDROFURAN-2-YL)-2,2-DIOXO-1,2R,3R,7-TETRAHYDRO-2L6-IMIDAZO[4,5-C][1,2,6]THIADIAZIN-4S-ONE
2K4Ligand/IonPOTASSIUM ION
3PO42Ligand/IonPHOSPHATE ION
Biological Unit 1 (2, 2)
No.NameCountTypeFull Name
113A1Ligand/Ion7-(3,4-DIHYDROXY-5R-HYDROXYMETHYLTETRAHYDROFURAN-2-YL)-2,2-DIOXO-1,2R,3R,7-TETRAHYDRO-2L6-IMIDAZO[4,5-C][1,2,6]THIADIAZIN-4S-ONE
2K-1Ligand/IonPOTASSIUM ION
3PO41Ligand/IonPHOSPHATE ION
Biological Unit 2 (2, 2)
No.NameCountTypeFull Name
113A1Ligand/Ion7-(3,4-DIHYDROXY-5R-HYDROXYMETHYLTETRAHYDROFURAN-2-YL)-2,2-DIOXO-1,2R,3R,7-TETRAHYDRO-2L6-IMIDAZO[4,5-C][1,2,6]THIADIAZIN-4S-ONE
2K-1Ligand/IonPOTASSIUM ION
3PO41Ligand/IonPHOSPHATE ION

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:589 , ARG B:208 , TYR B:209BINDING SITE FOR RESIDUE PO4 A 801
2AC2SOFTWAREARG C:208 , TYR C:209 , ARG D:589BINDING SITE FOR RESIDUE PO4 C 901
3AC3SOFTWAREVAL A:426 , THR A:429 , SER A:431 , SER A:433 , ASP A:540 , LEU A:590 , HIS A:592BINDING SITE FOR RESIDUE K A 1001
4AC4SOFTWAREVAL B:426 , THR B:429 , SER B:431 , SER B:433 , ASP B:540 , LEU B:590 , HIS B:592BINDING SITE FOR RESIDUE K B 1002
5AC5SOFTWAREVAL C:426 , THR C:429 , SER C:431 , SER C:433 , ASP C:540 , LEU C:590 , HIS C:592BINDING SITE FOR RESIDUE K C 1003
6AC6SOFTWAREVAL D:426 , THR D:429 , SER D:431 , SER D:433 , ASP D:540 , LEU D:590 , HIS D:592BINDING SITE FOR RESIDUE K D 1004
7AC7SOFTWARESER A:11 , VAL A:12 , SER A:13 , GLY A:64 , ARG A:65 , LYS A:67 , THR A:68 , CYS A:102 , ASN A:103 , TYR A:105 , ASP A:126 , ILE A:127 , GLY A:128 , GLY A:129BINDING SITE FOR RESIDUE 13A A 600
8AC8SOFTWARESER D:11 , VAL D:12 , SER D:13 , SER D:35 , THR D:38 , GLY D:64 , ARG D:65 , LYS D:67 , THR D:68 , CYS D:102 , ASN D:103 , TYR D:105 , ASP D:126 , ILE D:127 , GLY D:128 , GLY D:129BINDING SITE FOR RESIDUE 13A D 601

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2B1G)

(-) Cis Peptide Bonds  (8, 8)

Asymmetric Unit
No.Residues
1Ser A:216 -Pro A:217
2Ser A:431 -Asn A:432
3Ser B:216 -Pro B:217
4Ser B:431 -Asn B:432
5Ser C:216 -Pro C:217
6Ser C:431 -Asn C:432
7Ser D:216 -Pro D:217
8Ser D:431 -Asn D:432

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2B1G)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2B1G)

(-) Exons   (0, 0)

(no "Exon" information available for 2B1G)

(-) 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:590
 aligned with PUR9_CHICK | P31335 from UniProtKB/Swiss-Prot  Length:593

    Alignment length:590
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593
           PUR9_CHICK     4 RQQLALLSVSEKAGLVEFARSLNALGLGLIASGGTATALRDAGLPVRDVSDLTGFPEMLGGRVKTLHPAVHAGILARNIPEDNADMNKQDFSLVRVVVCNLYPFVKTVSSPGVTVPEAVEKIDIGGVALLRAAAKNHARVTVVCDPADYSSVAKEMAASKDKDTSVETRRHLALKAFTHTAQYDAAISDYFRKEYSKGVSQLPLRYGMNPHQSPAQLYTTRPKLPLTVVNGSPGFINLCDALNAWQLVKELKQALGIPAAASFKHVSPAGAAVGIPLSEEEAQVCMVHDLHKTLTPLASAYARSRGADRMSSFGDFIALSDICDVPTAKIISREVSDGVVAPGYEEEALKILSKKKNGGYCVLQMDPNYEPDDNEIRTLYGLQLMQKRNNAVIDRSLFKNIVTKNKTLPESAVRDLIVASIAVKYTQSNSVCYAKDGQVIGIGAGQQSRIHCTRLAGDKANSWWLRHHPRVLSMKFKAGVKRAEVSNAIDQYVTGTIGEDEDLVKWQAMFEEVPAQLTEAEKKQWIAKLTAVSLSSDAFFPFRDNVDRAKRIGVQFIVAPSGSAADEVVIEACNELGITLIHTNLRLFHH 593
               SCOP domains d2b1ga1 A:4-200 IMP cyclohydrolase domain of bifunctional purine biosynthesis enzyme ATIC                                                                                                            d2b1ga2 A:201-593 AICAR transformylase domain of bifunctional purine biosynthesis enzyme ATIC                                                                                                                                                                                                                                                                                                             SCOP domains
               CATH domains 2b1gA01 A:4-198  [code=3.40.50.1380, no name defined]                                                                                                                                              -----------------------------2b1gA02 A:228-374  [code=3.40.140.20, no name defined]                                                                                             ------------------------------------------------------------------------------------------------------2b1gA04 A:477-519                          -------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee.....hhhhhhhhhhh...eeeehhhhhhhhhhhh..eeehhhhhh..hhhhhh....hhhhhhhhhh..hhhhhhhhhhhh...eeeeee...hhhhhh.....hhhhhhh...hhhhhhhhhhhhh....eee.hhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....eeee..........eeee.......eeeee...hhhhhhhhhhhhhhhhhhhhhhh..eeeeee..eeeeeee....hhhhhhhh.hhhhhhhhhhhhhhhhhhhhh.......eeeee....hhhhhhhhhhh.eeeeee...hhhhhhhhhhhhhhh..eeee........eeeeee..eeeeee......hhhhhh.........hhhhhhhhhhhhhhhhh.....eeeee..eeeeee....hhhhhhhhhhhhhhhhhhh.hhhhhh.ee....hhhhhhhhhhhhhhh....hhhhhhhhh.eee.....hhhhhhhhhh....eeeee......hhhhhhhhh..eeeeeee....hhhhhhhhhhhh..eeeee....... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2b1g A   4 RQQLALLSVSEKAGLVEFARSLNALGLGLIASGGTATALRDAGLPVRDVSDLTGFPEMLGGRVKTLHPAVHAGILARNIPEDNADMNKQDFSLVRVVVCNLYPFVKTVSSPGVTVPEAVEKIDIGGVALLRAAAKNHARVTVVCDPADYSSVAKEMAASKDKDTSVETRRHLALKAFTHTAQYDAAISDYFRKEYSKGVSQLPLRYGMNPHQSPAQLYTTRPKLPLTVVNGSPGFINLCDALNAWQLVKELKQALGIPAAASFKHVSPAGAAVGIPLSEEEAQVCMVHDLHKTLTPLASAYARSRGADRMSSFGDFIALSDICDVPTAKIISREVSDGVVAPGYEEEALKILSKKKNGGYCVLQMDPNYEPDDNEIRTLYGLQLMQKRNNAVIDRSLFKNIVTKNKTLPESAVRDLIVASIAVKYTQSNSVCYAKDGQVIGIGAGQQSRIHCTRLAGDKANSWWLRHHPRVLSMKFKAGVKRAEVSNAIDQYVTGTIGEDEDLVKWQAMFEEVPAQLTEAEKKQWIAKLTAVSLSSDAFFPFRDNVDRAKRIGVQFIVAPSGSAADEVVIEACNELGITLIHTNLRLFHH 593
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593


Chain B from PDB  Type:PROTEIN  Length:590
 aligned with PUR9_CHICK | P31335 from UniProtKB/Swiss-Prot  Length:593

    Alignment length:590
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593
           PUR9_CHICK     4 RQQLALLSVSEKAGLVEFARSLNALGLGLIASGGTATALRDAGLPVRDVSDLTGFPEMLGGRVKTLHPAVHAGILARNIPEDNADMNKQDFSLVRVVVCNLYPFVKTVSSPGVTVPEAVEKIDIGGVALLRAAAKNHARVTVVCDPADYSSVAKEMAASKDKDTSVETRRHLALKAFTHTAQYDAAISDYFRKEYSKGVSQLPLRYGMNPHQSPAQLYTTRPKLPLTVVNGSPGFINLCDALNAWQLVKELKQALGIPAAASFKHVSPAGAAVGIPLSEEEAQVCMVHDLHKTLTPLASAYARSRGADRMSSFGDFIALSDICDVPTAKIISREVSDGVVAPGYEEEALKILSKKKNGGYCVLQMDPNYEPDDNEIRTLYGLQLMQKRNNAVIDRSLFKNIVTKNKTLPESAVRDLIVASIAVKYTQSNSVCYAKDGQVIGIGAGQQSRIHCTRLAGDKANSWWLRHHPRVLSMKFKAGVKRAEVSNAIDQYVTGTIGEDEDLVKWQAMFEEVPAQLTEAEKKQWIAKLTAVSLSSDAFFPFRDNVDRAKRIGVQFIVAPSGSAADEVVIEACNELGITLIHTNLRLFHH 593
               SCOP domains d2b1gb1 B:4-200 IMP cyclohydrolase domain of bifunctional purine biosynthesis enzyme ATIC                                                                                                            d2b1gb2 B:201-593 AICAR transformylase domain of bifunctional purine biosynthesis enzyme ATIC                                                                                                                                                                                                                                                                                                             SCOP domains
               CATH domains 2b1gB01 B:4-198  [code=3.40.50.1380, no name defined]                                                                                                                                              -----------------------------2b1gB02 B:228-374  [code=3.40.140.20, no name defined]                                                                                             ------------------------------------------------------------------------------------------------------2b1gB04 B:477-519                          -------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeee....hhhhhhhhhhhh..eeeehhhhhhhhhhh...eeehhhhhh...hhhhh....hhhhhhhhhh..hhhhhhhhhhhh...eeeeeee..hhhhhh.....hhhhhhhh..hhhhhhhhhhhhh....eee.hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....eeee..........eeee.......eeeee...hhhhhhhhhhhhhhhhhhhhhhh..eeeeee..eeeeeee....hhhhhhhh.hhhhhhhhhhhhhhhhhhhhh.......eeeee....hhhhhhhhhh..eeeeee...hhhhhhhhhhhhhhh.eeeee........eeeeee..eeeeee......hhhhhhh........hhhhhhhhhhhhhhhhh.....eeeee..eeeeee....hhhhhhhhhhhhhhhhhhh.hhhhhh.ee....hhhhhhhhhhhhhh.....hhhhhhhhh.eee.....hhhhhhhhhh....eeeee......hhhhhhhhhh.eeeeeee....hhhhhhhhhhhhh.eeeee....... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2b1g B   4 RQQLALLSVSEKAGLVEFARSLNALGLGLIASGGTATALRDAGLPVRDVSDLTGFPEMLGGRVKTLHPAVHAGILARNIPEDNADMNKQDFSLVRVVVCNLYPFVKTVSSPGVTVPEAVEKIDIGGVALLRAAAKNHARVTVVCDPADYSSVAKEMAASKDKDTSVETRRHLALKAFTHTAQYDAAISDYFRKEYSKGVSQLPLRYGMNPHQSPAQLYTTRPKLPLTVVNGSPGFINLCDALNAWQLVKELKQALGIPAAASFKHVSPAGAAVGIPLSEEEAQVCMVHDLHKTLTPLASAYARSRGADRMSSFGDFIALSDICDVPTAKIISREVSDGVVAPGYEEEALKILSKKKNGGYCVLQMDPNYEPDDNEIRTLYGLQLMQKRNNAVIDRSLFKNIVTKNKTLPESAVRDLIVASIAVKYTQSNSVCYAKDGQVIGIGAGQQSRIHCTRLAGDKANSWWLRHHPRVLSMKFKAGVKRAEVSNAIDQYVTGTIGEDEDLVKWQAMFEEVPAQLTEAEKKQWIAKLTAVSLSSDAFFPFRDNVDRAKRIGVQFIVAPSGSAADEVVIEACNELGITLIHTNLRLFHH 593
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593


Chain C from PDB  Type:PROTEIN  Length:590
 aligned with PUR9_CHICK | P31335 from UniProtKB/Swiss-Prot  Length:593

    Alignment length:590
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593
           PUR9_CHICK     4 RQQLALLSVSEKAGLVEFARSLNALGLGLIASGGTATALRDAGLPVRDVSDLTGFPEMLGGRVKTLHPAVHAGILARNIPEDNADMNKQDFSLVRVVVCNLYPFVKTVSSPGVTVPEAVEKIDIGGVALLRAAAKNHARVTVVCDPADYSSVAKEMAASKDKDTSVETRRHLALKAFTHTAQYDAAISDYFRKEYSKGVSQLPLRYGMNPHQSPAQLYTTRPKLPLTVVNGSPGFINLCDALNAWQLVKELKQALGIPAAASFKHVSPAGAAVGIPLSEEEAQVCMVHDLHKTLTPLASAYARSRGADRMSSFGDFIALSDICDVPTAKIISREVSDGVVAPGYEEEALKILSKKKNGGYCVLQMDPNYEPDDNEIRTLYGLQLMQKRNNAVIDRSLFKNIVTKNKTLPESAVRDLIVASIAVKYTQSNSVCYAKDGQVIGIGAGQQSRIHCTRLAGDKANSWWLRHHPRVLSMKFKAGVKRAEVSNAIDQYVTGTIGEDEDLVKWQAMFEEVPAQLTEAEKKQWIAKLTAVSLSSDAFFPFRDNVDRAKRIGVQFIVAPSGSAADEVVIEACNELGITLIHTNLRLFHH 593
               SCOP domains d2b1gc1 C:4-200 IMP cyclohydrolase domain of bifunctional purine biosynthesis enzyme ATIC                                                                                                            d2b1gc2 C:201-593 AICAR transformylase domain of bifunctional purine biosynthesis enzyme ATIC                                                                                                                                                                                                                                                                                                             SCOP domains
               CATH domains 2b1gC01 C:4-198  [code=3.40.50.1380, no name defined]                                                                                                                                              -----------------------------2b1gC02 C:228-374  [code=3.40.140.20, no name defined]                                                                                             ------------------------------------------------------------------------------------------------------2b1gC04 C:477-519                          -------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeee....hhhhhhhhhhhh..eeeehhhhhhhhhhh...eehhhhhhh............hhhhhhhhhh..hhhhhhhhhhh....eeeeeee..hhhhhhh....hhhhhhhh..hhhhhhhhhhhhh....eee.hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....eeee..........eeee.......eeeee...hhhhhhhhhhhhhhhhhhhhhhh..eeeeee..eeeeeee....hhhhhhhh.hhhhhhhhhhhhhhhhhhhh........eeeee....hhhhhhhhhh..eeeeee...hhhhhhhhhh......eeeee........eeeeee..eeeeee......hhhhhh.........hhhhhhhhhhhhhhhhh.....eeeee..eeeeee....hhhhhhhhhhhhhhhhhhh.hhhhhh.ee....hhhhhhhhhhhhhh....hhhhhhhhhh.eee.....hhhhhhhhhh....eeeee......hhhhhhhhh..eeeeeee....hhhhhhhhhhhhh.eeeee....... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2b1g C   4 RQQLALLSVSEKAGLVEFARSLNALGLGLIASGGTATALRDAGLPVRDVSDLTGFPEMLGGRVKTLHPAVHAGILARNIPEDNADMNKQDFSLVRVVVCNLYPFVKTVSSPGVTVPEAVEKIDIGGVALLRAAAKNHARVTVVCDPADYSSVAKEMAASKDKDTSVETRRHLALKAFTHTAQYDAAISDYFRKEYSKGVSQLPLRYGMNPHQSPAQLYTTRPKLPLTVVNGSPGFINLCDALNAWQLVKELKQALGIPAAASFKHVSPAGAAVGIPLSEEEAQVCMVHDLHKTLTPLASAYARSRGADRMSSFGDFIALSDICDVPTAKIISREVSDGVVAPGYEEEALKILSKKKNGGYCVLQMDPNYEPDDNEIRTLYGLQLMQKRNNAVIDRSLFKNIVTKNKTLPESAVRDLIVASIAVKYTQSNSVCYAKDGQVIGIGAGQQSRIHCTRLAGDKANSWWLRHHPRVLSMKFKAGVKRAEVSNAIDQYVTGTIGEDEDLVKWQAMFEEVPAQLTEAEKKQWIAKLTAVSLSSDAFFPFRDNVDRAKRIGVQFIVAPSGSAADEVVIEACNELGITLIHTNLRLFHH 593
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593


Chain D from PDB  Type:PROTEIN  Length:590
 aligned with PUR9_CHICK | P31335 from UniProtKB/Swiss-Prot  Length:593

    Alignment length:590
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593
           PUR9_CHICK     4 RQQLALLSVSEKAGLVEFARSLNALGLGLIASGGTATALRDAGLPVRDVSDLTGFPEMLGGRVKTLHPAVHAGILARNIPEDNADMNKQDFSLVRVVVCNLYPFVKTVSSPGVTVPEAVEKIDIGGVALLRAAAKNHARVTVVCDPADYSSVAKEMAASKDKDTSVETRRHLALKAFTHTAQYDAAISDYFRKEYSKGVSQLPLRYGMNPHQSPAQLYTTRPKLPLTVVNGSPGFINLCDALNAWQLVKELKQALGIPAAASFKHVSPAGAAVGIPLSEEEAQVCMVHDLHKTLTPLASAYARSRGADRMSSFGDFIALSDICDVPTAKIISREVSDGVVAPGYEEEALKILSKKKNGGYCVLQMDPNYEPDDNEIRTLYGLQLMQKRNNAVIDRSLFKNIVTKNKTLPESAVRDLIVASIAVKYTQSNSVCYAKDGQVIGIGAGQQSRIHCTRLAGDKANSWWLRHHPRVLSMKFKAGVKRAEVSNAIDQYVTGTIGEDEDLVKWQAMFEEVPAQLTEAEKKQWIAKLTAVSLSSDAFFPFRDNVDRAKRIGVQFIVAPSGSAADEVVIEACNELGITLIHTNLRLFHH 593
               SCOP domains d2b1gd1 D:4-200 IMP cyclohydrolase domain of bifunctional purine biosynthesis enzyme ATIC                                                                                                            d2b1gd2 D:201-593 AICAR transformylase domain of bifunctional purine biosynthesis enzyme ATIC                                                                                                                                                                                                                                                                                                             SCOP domains
               CATH domains 2b1gD01 D:4-198  [code=3.40.50.1380, no name defined]                                                                                                                                              -----------------------------2b1gD02 D:228-374  [code=3.40.140.20, no name defined]                                                                                             ------------------------------------------------------------------------------------------------------2b1gD04 D:477-519                          -------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee.....hhhhhhhhhhhh..eeeehhhhhhhhh.....eeehhhhhh..hhhhhh....hhhhhhhhhh..hhhhhhhhhhhh...eeeeee...hhhhhhh....hhhhhhhh..hhhhhhhhhhhhh....eee....hhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....eeee..........eeee.......eeeee...hhhhhhhhhhhhhhhhhhhhhhh..eeeeee..eeeeeee....hhhhhhhh.hhhhhhhhhhhhhhhhhhhhh.......eeeee....hhhhhhhhhhh.eeeeee...hhhhhhhhhhhhhhh.eeeee........eeeeee..eeeeee......hhhhhh.........hhhhhhhhhhhhhhhhh....eeeeee..eeeeeee...hhhhhhhhhhhhhhhhhhh.hhhhhh.ee....hhhhhhhhhhhhhhh....hhhhhhhhh.eee.....hhhhhhhhhh....eeeee......hhhhhhhhh..eeeeeee....hhhhhhhhhhhh..eeeee....... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2b1g D   4 RQQLALLSVSEKAGLVEFARSLNALGLGLIASGGTATALRDAGLPVRDVSDLTGFPEMLGGRVKTLHPAVHAGILARNIPEDNADMNKQDFSLVRVVVCNLYPFVKTVSSPGVTVPEAVEKIDIGGVALLRAAAKNHARVTVVCDPADYSSVAKEMAASKDKDTSVETRRHLALKAFTHTAQYDAAISDYFRKEYSKGVSQLPLRYGMNPHQSPAQLYTTRPKLPLTVVNGSPGFINLCDALNAWQLVKELKQALGIPAAASFKHVSPAGAAVGIPLSEEEAQVCMVHDLHKTLTPLASAYARSRGADRMSSFGDFIALSDICDVPTAKIISREVSDGVVAPGYEEEALKILSKKKNGGYCVLQMDPNYEPDDNEIRTLYGLQLMQKRNNAVIDRSLFKNIVTKNKTLPESAVRDLIVASIAVKYTQSNSVCYAKDGQVIGIGAGQQSRIHCTRLAGDKANSWWLRHHPRVLSMKFKAGVKRAEVSNAIDQYVTGTIGEDEDLVKWQAMFEEVPAQLTEAEKKQWIAKLTAVSLSSDAFFPFRDNVDRAKRIGVQFIVAPSGSAADEVVIEACNELGITLIHTNLRLFHH 593
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593
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 Classification and Annotation

(-) SCOP Domains  (2, 8)

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

(-) CATH Domains  (3, 12)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2B1G)

(-) Gene Ontology  (10, 10)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D   (PUR9_CHICK | P31335)
molecular function
    GO:0003937    IMP cyclohydrolase activity    Catalysis of the reaction: IMP + H2O = 5-formamido-1-(5-phosphoribosyl)imidazole-4-carboxamide.
    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: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:0004643    phosphoribosylaminoimidazolecarboxamide formyltransferase activity    Catalysis of the reaction: 10-formyltetrahydrofolate + 5'-phosphoribosyl-5-amino-4-imidazolecarboxamide = tetrahydrofolate + 5'-phosphoribosyl-5-formamido-4-imidazolecarboxamide.
    GO:0042803    protein homodimerization activity    Interacting selectively and non-covalently with an identical protein to form a homodimer.
    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.
biological process
    GO:0006189    'de novo' IMP biosynthetic process    The chemical reactions and pathways resulting in the formation of IMP, inosine monophosphate, by the stepwise assembly of a purine ring on ribose 5-phosphate.
    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:0006164    purine nucleotide biosynthetic process    The chemical reactions and pathways resulting in the formation of a purine nucleotide, a compound consisting of nucleoside (a purine base linked to a deoxyribose or ribose sugar) esterified with a phosphate group at either the 3' or 5'-hydroxyl group of the sugar.
cellular component
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

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  2b1g
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 Related Entries

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

UniProtKB/Swiss-Prot
        PUR9_CHICK | P31335: 1g8m 1m9n 1oz0 1thz 2b1i 2iu0 2iu3

(-) Related Entries Specified in the PDB File

1g8m CRYSTAL STRUCTURE OF AVIAN ATIC
1m9n THE SAME PROTEIN IN COMPLEX WITH AICAR AND XMP
1oz0 THE SAME PROTEIN IN COMPLEX WITH A MULTISUBSTRATE ADDUCT INHIBITOR
1pkx CRYSTAL STRUCTURE OF HUMAN ATIC IN COMPLEX WITH XMP
1pl0 CRYSTAL STRUCTURE OF HUMAN ATIC IN COMPLEX WITH FOLATE- BASED INHIBITOR, BW2315U89UC
1thz CRYSTAL STRUCTURE OF AVIAN AICAR TRANSFORMYLASE IN COMPLEX WITH A NOVEL INHIBITOR IDENTIFIED BY VIRTUAL LIGAND SCREENING
2b0w
2b1i