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- PDB-4a1o: Crystal structure of Mycobacterium tuberculosis PurH complexed wi... -

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Basic information

Entry
Database: PDB / ID: 4a1o
TitleCrystal structure of Mycobacterium tuberculosis PurH complexed with AICAR and a novel nucleotide CFAIR, at 2.48 A resolution.
ComponentsBIFUNCTIONAL PURINE BIOSYNTHESIS PROTEIN PURH
KeywordsTRANSFERASE-HYDROLASE
Function / homology
Function and homology information


phosphoribosylaminoimidazolecarboxamide formyltransferase / phosphoribosylaminoimidazolecarboxamide formyltransferase activity / IMP cyclohydrolase / IMP cyclohydrolase activity / 'de novo' IMP biosynthetic process / plasma membrane / cytosol
Similarity search - Function
AICAR transformylase, duplication domain / AICAR transformylase, duplicated domain superfamily / AICARFT/IMPCHase bienzyme / Bifunctional purine biosynthesis protein PurH-like / AICARFT/IMPCHase bienzyme / Methylglyoxal synthase-like domain / MGS-like domain profile. / Methylglyoxal synthase-like domain / Methylglyoxal synthase-like domain superfamily / MGS-like domain ...AICAR transformylase, duplication domain / AICAR transformylase, duplicated domain superfamily / AICARFT/IMPCHase bienzyme / Bifunctional purine biosynthesis protein PurH-like / AICARFT/IMPCHase bienzyme / Methylglyoxal synthase-like domain / MGS-like domain profile. / Methylglyoxal synthase-like domain / Methylglyoxal synthase-like domain superfamily / MGS-like domain / MGS-like domain / Cytidine Deaminase; domain 2 / Cytidine deaminase-like / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
AMINOIMIDAZOLE 4-CARBOXAMIDE RIBONUCLEOTIDE / Chem-JLN / : / PHOSPHATE ION / Bifunctional purine biosynthesis protein PurH / Bifunctional purine biosynthesis protein PurH
Similarity search - Component
Biological speciesMYCOBACTERIUM TUBERCULOSIS (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.48 Å
AuthorsLe Nours, J. / Bulloch, E.M.M. / Zhang, Z. / Greenwood, D.R. / Middleditch, M.J. / Dickson, J.M.J. / Baker, E.N.
CitationJournal: J.Biol.Chem. / Year: 2011
Title: Structural Analyses of a Purine Biosynthetic Enzyme from Mycobacterium Tuberculosis Reveal a Novel Bound Nucleotide.
Authors: Le Nours, J. / Bulloch, E.M.M. / Zhang, Z. / Greenwood, D.R. / Middleditch, M.J. / Dickson, J.M.J. / Baker, E.N.
History
DepositionSep 17, 2011Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 28, 2011Provider: repository / Type: Initial release
Revision 1.1Oct 26, 2011Group: Database references
Revision 1.2Dec 14, 2011Group: Database references
Revision 1.3Dec 20, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_alt_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_alt_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_ptnr1_label_alt_id / _struct_conn.pdbx_ptnr2_label_alt_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: BIFUNCTIONAL PURINE BIOSYNTHESIS PROTEIN PURH
B: BIFUNCTIONAL PURINE BIOSYNTHESIS PROTEIN PURH
hetero molecules


Theoretical massNumber of molelcules
Total (without water)111,57710
Polymers110,1702
Non-polymers1,4078
Water4,882271
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area14200 Å2
ΔGint-75 kcal/mol
Surface area38420 Å2
MethodPISA
Unit cell
Length a, b, c (Å)75.258, 107.883, 130.924
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121
Noncrystallographic symmetry (NCS)NCS oper: (Code: given
Matrix: (-0.9684, -0.2122, 0.1307), (-0.2138, 0.4374, -0.8735), (0.1282, -0.8739, -0.469)
Vector: 40.9, 75.28, 89.55)

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Components

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Protein , 1 types, 2 molecules AB

#1: Protein BIFUNCTIONAL PURINE BIOSYNTHESIS PROTEIN PURH / PHOSPHORIBOSYLAMINOIMIDAZOLECARBOXAMIDE FORMYLTRANSFERASE / AICAR TRANSFORMYLASE / IMP ...PHOSPHORIBOSYLAMINOIMIDAZOLECARBOXAMIDE FORMYLTRANSFERASE / AICAR TRANSFORMYLASE / IMP CYCLOHYDROLASE / ATIC / IMP SYNTHASE / INOSINICASE


Mass: 55084.949 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) MYCOBACTERIUM TUBERCULOSIS (bacteria) / Strain: H37RV / Plasmid: PDEST17 / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3)
References: UniProt: P67541, UniProt: P9WHM7*PLUS, phosphoribosylaminoimidazolecarboxamide formyltransferase, IMP cyclohydrolase

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Non-polymers , 5 types, 279 molecules

#2: Chemical ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: K
#3: Chemical ChemComp-AMZ / AMINOIMIDAZOLE 4-CARBOXAMIDE RIBONUCLEOTIDE / AICAR


Mass: 338.211 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C9H15N4O8P
#4: Chemical ChemComp-PO4 / PHOSPHATE ION


Mass: 94.971 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: PO4
#5: Chemical ChemComp-JLN / 5-(FORMYLAMINO)-1-(5-O-PHOSPHONO-BETA-D-RIBOFURANOSYL)-1H-IMIDAZOLE-4-CARBOXYLIC ACID


Type: RNA linking / Mass: 367.206 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H14N3O10P
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 271 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.3 Å3/Da / Density % sol: 46.5 % / Description: NONE
Crystal growpH: 6.5
Details: 24-34% PEG 8000, 0.2 M SODIUM ACETATE, 0.1 M SODIUM CACODYLATE PH 6.5

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL9-2 / Wavelength: 0.979
DetectorType: MARMOSAIC 325 mm CCD / Detector: CCD / Date: Jul 29, 2007
RadiationMonochromator: DOUBLE CRYSTAL / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.979 Å / Relative weight: 1
ReflectionResolution: 2.48→50 Å / Num. obs: 38276 / % possible obs: 98.8 % / Observed criterion σ(I): 2 / Redundancy: 10.5 % / Biso Wilson estimate: 59.45 Å2 / Rmerge(I) obs: 0.12 / Net I/σ(I): 20.8
Reflection shellResolution: 2.2→2.58 Å / Redundancy: 7 % / Rmerge(I) obs: 0.39 / Mean I/σ(I) obs: 4.7 / % possible all: 88.9

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Processing

Software
NameVersionClassification
BUSTER2.8.0refinement
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 3ZZM

3zzm


Resolution: 2.48→43.84 Å / Cor.coef. Fo:Fc: 0.95 / Cor.coef. Fo:Fc free: 0.9241 / Cross valid method: THROUGHOUT / σ(F): 0
Details: REFINEMENT NOTE 1: IDEAL-DIST CONTACT TERM CONTACT SETUP. RESIDUE TYPES WITHOUT CCP4 ATOM TYPE IN LIBRARY=K AMZ JLN. NUMBER OF ATOMS WITH PROPER CCP4 ATOM TYPE= 7962. NUMBER WITH APPROX ...Details: REFINEMENT NOTE 1: IDEAL-DIST CONTACT TERM CONTACT SETUP. RESIDUE TYPES WITHOUT CCP4 ATOM TYPE IN LIBRARY=K AMZ JLN. NUMBER OF ATOMS WITH PROPER CCP4 ATOM TYPE= 7962. NUMBER WITH APPROX DEFAULT CCP4 ATOM TYPE=68. NUMBER RESTRAINT LSSR (-AUTONCS).
RfactorNum. reflection% reflectionSelection details
Rfree0.2271 1914 5.01 %RANDOM
Rwork0.182 ---
obs0.1842 38207 --
Displacement parametersBiso mean: 51.97 Å2
Baniso -1Baniso -2Baniso -3
1--0.0501 Å20 Å20 Å2
2---0.9473 Å20 Å2
3---0.9974 Å2
Refinement stepCycle: LAST / Resolution: 2.48→43.84 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms7664 0 85 271 8020
Refine LS restraints
Refine-IDTypeDev idealNumberRestraint functionWeight
X-RAY DIFFRACTIONt_bond_d0.017926HARMONIC2
X-RAY DIFFRACTIONt_angle_deg1.0710831HARMONIC2
X-RAY DIFFRACTIONt_dihedral_angle_d3518SINUSOIDAL2
X-RAY DIFFRACTIONt_incorr_chiral_ct
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_trig_c_planes186HARMONIC2
X-RAY DIFFRACTIONt_gen_planes1207HARMONIC5
X-RAY DIFFRACTIONt_it7926HARMONIC20
X-RAY DIFFRACTIONt_nbd0SEMIHARMONIC5
X-RAY DIFFRACTIONt_omega_torsion3.22
X-RAY DIFFRACTIONt_other_torsion2.72
X-RAY DIFFRACTIONt_improper_torsion
X-RAY DIFFRACTIONt_chiral_improper_torsion1061SEMIHARMONIC5
X-RAY DIFFRACTIONt_sum_occupancies
X-RAY DIFFRACTIONt_utility_distance
X-RAY DIFFRACTIONt_utility_angle
X-RAY DIFFRACTIONt_utility_torsion
X-RAY DIFFRACTIONt_ideal_dist_contact9381SEMIHARMONIC4
LS refinement shellResolution: 2.48→2.55 Å / Total num. of bins used: 19
RfactorNum. reflection% reflection
Rfree0.3007 129 4.76 %
Rwork0.2276 2580 -
all0.231 2709 -
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL11 (°2)L12 (°2)L13 (°2)L22 (°2)L23 (°2)L33 (°2)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T11 (Å2)T12 (Å2)T13 (Å2)T22 (Å2)T23 (Å2)T33 (Å2)Origin x (Å)Origin y (Å)Origin z (Å)
10.7398-0.18080.21790.4493-0.08310.468-0.0486-0.11230.1016-0.00410.0118-0.1367-0.0330.09160.0369-0.16380.01720.0009-0.0394-0.0504-0.086372.209494.820811.6764
20.58720.18420.00350.4372-0.17160.6499-0.00830.0068-0.01220.0148-0.00410.0648-0.1038-0.04430.0124-0.15440.03030.0021-0.053-0.0533-0.10352.292491.22110.2664

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