[English] 日本語
Yorodumi
- PDB-1im6: CRYSTAL STRUCTURE OF UNLIGATED HPPK(R82A) FROM E.COLI AT 1.74 ANG... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 1im6
TitleCRYSTAL STRUCTURE OF UNLIGATED HPPK(R82A) FROM E.COLI AT 1.74 ANGSTROM RESOLUTION
Components6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASE
KeywordsTRANSFERASE / PYROPHOSPHOKINASE / PYROPHOSPHORYL TRANSFER / FOLATE / HPPK / PTERIN / 6-HYDROXYMETHYL-7 / 8-DIHYDROPTERIN / ANTIMICROBIAL AGENT / DRUG DESIGN
Function / homology
Function and homology information


2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase / 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase activity / folic acid biosynthetic process / tetrahydrofolate biosynthetic process / kinase activity / magnesium ion binding / ATP binding
Similarity search - Function
7,8-dihydro-6-hydroxymethylpterin-pyrophosphokinase signature. / 7,8-Dihydro-6-hydroxymethylpterin-pyrophosphokinase HPPK / 7,8-Dihydro-6-hydroxymethylpterin-pyrophosphokinase, HPPK / 7,8-Dihydro-6-hydroxymethylpterin-pyrophosphokinase HPPK superfamily / 7,8-dihydro-6-hydroxymethylpterin-pyrophosphokinase (HPPK) / Alpha-Beta Plaits / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
2-amino-4-hydroxy-6-hydroxymethyldihydropteridine pyrophosphokinase
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.74 Å
AuthorsBlaszczyk, J. / Ji, X.
Citation
Journal: Biochemistry / Year: 2003
Title: Dynamic Roles of Arginine Residues 82 and 92 of Escherichia coli 6-Hydroxymethyl-7,8-dihydropterin Pyrophosphokinase: Crystallographic Studies
Authors: Blaszczyk, J. / Li, Y. / Shi, G. / Yan, H. / Ji, X.
#1: Journal: Structure / Year: 1999
Title: Crystal Structure of 6-Hydroxymethyl-7,8-Dihydropterin Pyrophosphokinase, a Potential Target for the Development of Novel Antimicrobial Agents
Authors: Xiao, B. / Shi, G. / Chen, X. / Yan, H. / Ji, X.
#2: Journal: Structure / Year: 2000
Title: Catalytic Center Assembly of HPPK as Revealed by the Crystal Structure of a Ternary Complex at 1.25 A Resolution
Authors: Blaszczyk, J. / Shi, G. / Yan, H. / Ji, X.
#3: Journal: J.Med.Chem. / Year: 2001
Title: Bisubstrate Analogue Inhibitors of 6-Hydroxymethyl-7,8-Dihydropterin Pyrophosphokinase: Synthesis and Biochemical and Crystallographic Studies
Authors: Shi, G. / Blaszczyk, J. / Ji, X. / Yan, H.
History
DepositionMay 9, 2001Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 15, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 27, 2021Group: Database references / Derived calculations / Category: database_2 / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Aug 16, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.5Aug 30, 2023Group: Database references / Structure summary / Category: audit_author / citation_author
Item: _audit_author.identifier_ORCID / _citation_author.identifier_ORCID

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)17,9162
Polymers17,8801
Non-polymers351
Water5,026279
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)36.106, 47.178, 43.816
Angle α, β, γ (deg.)90.00, 109.44, 90.00
Int Tables number4
Space group name H-MP1211

-
Components

#1: Protein 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASE / 2-AMINO-4-HYDROXY-6-HYDROXYMETHYLDIHYDROPTERIDINE PYROPHOSPHOKINASE / HPPK


Mass: 17880.418 Da / Num. of mol.: 1 / Mutation: R82A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Plasmid: PET17B / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3)
References: UniProt: P26281, 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase
#2: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 279 / Source method: isolated from a natural source / Formula: H2O

-
Experimental details

-
Experiment

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

-
Sample preparation

CrystalDensity Matthews: 1.97 Å3/Da / Density % sol: 35.1 %
Crystal growTemperature: 292 K / Method: vapor diffusion, hanging drop / pH: 8.4
Details: PEG4000, MAGNESIUM CHLORIDE, ACETATE, FORMATE, pH 8.40, VAPOR DIFFUSION, HANGING DROP, temperature 292.0K
Crystal grow
*PLUS
Temperature: 18-20 ℃ / pH: 8
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetailsChemical formula
111 mg/mlprotein1drop
210 mMTris-HCl1droppH8.0
327 %(w/v)PEG40001reservoir
4180 mMsodium acetate1reservoir
550 mM1reservoirMgCl2
6700 mM1reservoirNaCOOH
790 mMTris-HCl1reservoirpH8.4

-
Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X9B / Wavelength: 0.97125 / Wavelength: 0.97125 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Feb 10, 2001 / Details: MIRROR
RadiationMonochromator: SILICON 111 / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97125 Å / Relative weight: 1
ReflectionResolution: 1.74→30 Å / Num. all: 14272 / Num. obs: 14272 / % possible obs: 95.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.508 % / Biso Wilson estimate: 23.3 Å2 / Rmerge(I) obs: 0.108 / Net I/σ(I): 11.4195
Reflection shellResolution: 1.74→1.8 Å / Redundancy: 3.072 % / Rmerge(I) obs: 0.403 / Mean I/σ(I) obs: 2.183 / Num. unique all: 1382 / % possible all: 93.9
Reflection
*PLUS
Highest resolution: 1.74 Å / Lowest resolution: 30 Å / Num. measured all: 50062
Reflection shell
*PLUS
% possible obs: 93.9 % / Mean I/σ(I) obs: 2.2

-
Processing

Software
NameClassification
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
SHELXL-97refinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ID 1HKA

1hka


Resolution: 1.74→30 Å / Num. parameters: 6187 / Num. restraintsaints: 5276 / Isotropic thermal model: ISOTROPIC / Cross valid method: FREE R / σ(F): 4 / σ(I): 2 / Stereochemistry target values: ENGH AND HUBER
Details: LEAST-SQUARES REFINEMENT USING THE KONNERT-HENDRICKSON CONJUGATE-GRADIENT ALGORITHM
RfactorNum. reflection% reflectionSelection details
Rfree0.206 655 4.992 %RANDOM
Rwork0.172 ---
all0.1907 13121 --
obs0.1641 10417 91.4 %-
Solvent computationSolvent model: MOEWS & KRETSINGER, J.MOL.BIOL. 91 (1975) 201-228
Displacement parametersBiso mean: 22.307 Å2
Refine analyzeLuzzati coordinate error obs: 0.166 Å / Luzzati d res low obs: 5 Å / Num. disordered residues: 1 / Occupancy sum hydrogen: 1260 / Occupancy sum non hydrogen: 1540
Refinement stepCycle: LAST / Resolution: 1.74→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1261 0 1 279 1541
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONs_bond_d0.006
X-RAY DIFFRACTIONs_angle_d0.021
X-RAY DIFFRACTIONs_similar_dist0
X-RAY DIFFRACTIONs_from_restr_planes0.025
X-RAY DIFFRACTIONs_zero_chiral_vol0.034
X-RAY DIFFRACTIONs_non_zero_chiral_vol0.037
X-RAY DIFFRACTIONs_anti_bump_dis_restr0.015
X-RAY DIFFRACTIONs_rigid_bond_adp_cmpnt0
X-RAY DIFFRACTIONs_similar_adp_cmpnt0.074
X-RAY DIFFRACTIONs_approx_iso_adps0
LS refinement shell
Resolution (Å)Rfactor RworkRefine-IDNum. reflection obsTotal num. of bins used
1.74-1.860.236X-RAY DIFFRACTION13379
1.86-1.960.219X-RAY DIFFRACTION13759
1.96-2.070.191X-RAY DIFFRACTION12679
2.07-2.190.178X-RAY DIFFRACTION12829
2.19-2.370.164X-RAY DIFFRACTION13509
2.37-2.60.154X-RAY DIFFRACTION12679
2.6-2.980.147X-RAY DIFFRACTION13239
2.98-3.970.145X-RAY DIFFRACTION13149
3.97-300.185X-RAY DIFFRACTION12039
Software
*PLUS
Name: SHELXL / Version: 97 / Classification: refinement
Refinement
*PLUS
Rfactor Rfree: 0.216 / Rfactor Rwork: 0.187
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONs_plane_restr0.025
X-RAY DIFFRACTIONs_chiral_restr0.034

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more