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- PDB-1pjs: The co-crystal structure of CysG, the multifunctional methyltrans... -
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Open data
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Basic information
Entry | Database: PDB / ID: 1pjs | ||||||
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Title | The co-crystal structure of CysG, the multifunctional methyltransferase/dehydrogenase/ferrochelatase for siroheme synthesis, in complex with it NAD cofactor | ||||||
![]() | Siroheme synthase | ||||||
![]() | TRANSFERASE/OXIDOREDUCTASE/LYASE / rossmann fold / nucleotide binding motif / SAH / SAM / NAD / phosphoserine / TRANSFERASE-OXIDOREDUCTASE-LYASE COMPLEX | ||||||
Function / homology | ![]() precorrin-2 dehydrogenase / precorrin-2 dehydrogenase activity / uroporphyrinogen-III C-methyltransferase / uroporphyrin-III C-methyltransferase activity / sirohydrochlorin ferrochelatase / sirohydrochlorin ferrochelatase activity / siroheme biosynthetic process / cobalamin biosynthetic process / NAD binding / methylation Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Stroupe, M.E. / Leech, H.K. / Daniels, D.S. / Warren, M.J. / Getzoff, E.D. | ||||||
![]() | ![]() Title: CysG structure reveals tetrapyrrole-binding features and novel regulation of siroheme biosynthesis. Authors: Stroupe, M.E. / Leech, H.K. / Daniels, D.S. / Warren, M.J. / Getzoff, E.D. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 192.4 KB | Display | ![]() |
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PDB format | ![]() | 153.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.6 MB | Display | ![]() |
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Full document | ![]() | 1.6 MB | Display | |
Data in XML | ![]() | 47.5 KB | Display | |
Data in CIF | ![]() | 61.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1pjqSC ![]() 1pjtC S: Starting model for refinement C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Details | The asymmetric unit contains a single homodimer. Each of CysG's modules (CysGB, residues 1-212, and CysGA, residues 213-457) are homodimers. Each subunit contains half of CysGB and half of CysGA, each of which is related to its dimer partner by a unique non-crystallographic two-fold symmetry axis. CysG has two distinct non-crystallographic two-fold symmetry axes, one for each homodimeric module. |
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Components
-Protein , 1 types, 2 molecules AB
#1: Protein | Mass: 50286.477 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: RESIDUES 1-212 (CYSGB) ARE A DEHYDROGENASE/FERROCHELATASE, RESIDUES 213-457 (CYSGA) ARE A BISMETHYLTRANSFERASE Source: (gene. exp.) ![]() ![]() ![]() References: UniProt: P25924, uroporphyrinogen-III C-methyltransferase, Oxidoreductases, EC: 4.99.1.- |
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-Non-polymers , 5 types, 219 molecules 








#2: Chemical | #3: Chemical | #4: Chemical | #5: Chemical | ChemComp-PO4 / | #6: Water | ChemComp-HOH / | |
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-Details
Has protein modification | Y |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.35 Å3/Da / Density % sol: 47.6 % | ||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 5 Details: PEG400, phosphate/citrate, sodium chloride, 2-mercaptoethanol, NAD, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K | ||||||||||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS pH: 4.5 / Method: vapor diffusion | ||||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 315 / Detector: CCD / Date: Mar 10, 2002 / Details: double crystal monochromator |
Radiation | Monochromator: double crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
Reflection | Resolution: 2.4→22.58 Å / Num. obs: 36207 / % possible obs: 95.5 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.1 % / Biso Wilson estimate: 31.5 Å2 / Rsym value: 0.079 / Net I/σ(I): 14.3 |
Reflection shell | Resolution: 2.4→2.49 Å / Mean I/σ(I) obs: 2.8 / Num. unique all: 3583 / Rsym value: 0.415 / % possible all: 97 |
Reflection | *PLUS Highest resolution: 2.4 Å / Lowest resolution: 20 Å / % possible obs: 97 % / Rmerge(I) obs: 0.079 |
Reflection shell | *PLUS % possible obs: 95.5 % / Rmerge(I) obs: 0.415 |
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Processing
Software |
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Refinement | Method to determine structure: ![]() Starting model: PDB entry 1PJQ Resolution: 2.4→22.58 Å / Rfactor Rfree error: 0.005 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 34.3105 Å2 / ksol: 0.340922 e/Å3 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 41.2 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 2.4→22.58 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.4→2.55 Å / Rfactor Rfree error: 0.015 / Total num. of bins used: 6
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Xplor file |
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Refinement | *PLUS Lowest resolution: 20 Å / % reflection Rfree: 10 % / Rfactor Rwork: 0.239 | ||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||
Refine LS restraints | *PLUS
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