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- PDB-1i1n: HUMAN PROTEIN L-ISOASPARTATE O-METHYLTRANSFERASE WITH S-ADENOSYL ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 1i1n | ||||||
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Title | HUMAN PROTEIN L-ISOASPARTATE O-METHYLTRANSFERASE WITH S-ADENOSYL HOMOCYSTEINE | ||||||
![]() | PROTEIN-L-ISOASPARTATE O-METHYLTRANSFERASE | ||||||
![]() | TRANSFERASE / METHYLTRANSFERASE / S-ADENOSYL HOMOCYSTEINE / PROTEIN REPAIR | ||||||
Function / homology | ![]() protein-L-isoaspartate(D-aspartate) O-methyltransferase / protein-L-isoaspartate (D-aspartate) O-methyltransferase activity / Protein repair / protein repair / protein methylation / extracellular vesicle / cadherin binding / extracellular exosome / cytoplasm / cytosol Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() | ||||||
![]() | Smith, C.D. / Chattopadhyay, D. / Carson, M. / Friedman, A.M. / Skinner, M.M. | ||||||
![]() | ![]() Title: Crystal structure of human L-isoaspartyl-O-methyl-transferase with S-adenosyl homocysteine at 1.6-A resolution and modeling of an isoaspartyl-containing peptide at the active site. Authors: Smith, C.D. / Carson, M. / Friedman, A.M. / Skinner, M.M. / Delucas, L. / Chantalat, L. / Weise, L. / Shirasawa, T. / Chattopadhyay, 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 | ![]() | 63.8 KB | Display | ![]() |
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PDB format | ![]() | 44.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 700.5 KB | Display | ![]() |
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Full document | ![]() | 702.2 KB | Display | |
Data in XML | ![]() | 13.4 KB | Display | |
Data in CIF | ![]() | 19.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1dl5S S: Starting model for refinement |
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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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Components
#1: Protein | Mass: 24537.207 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() References: UniProt: P22061, protein-L-isoaspartate(D-aspartate) O-methyltransferase |
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#2: Chemical | ChemComp-SAH / |
#3: Water | ChemComp-HOH / |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.31 Å3/Da / Density % sol: 46.86 % | ||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 277 K / Method: vapor diffusion, hanging drop / pH: 6.5 Details: PEG 8000, sodium cacodylate, magnesium acetate, DTT, bis-Tris acetate, S-adenosyl homocysteine, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K | ||||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS Temperature: 4 ℃ / Details: used macroseeding | ||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 93 K |
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Diffraction source | Source: ![]() |
Detector | Type: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Nov 25, 1997 / Details: MSC MIRRORS |
Radiation | Monochromator: NICKEL FILTER / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.5418 Å / Relative weight: 1 |
Reflection | Resolution: 1.5→50 Å / Num. obs: 31332 / % possible obs: 86.8 % / Observed criterion σ(I): -3 / Redundancy: 3.47 % / Biso Wilson estimate: 18.1 Å2 / Rmerge(I) obs: 0.04 / Net I/σ(I): 28 |
Reflection shell | Resolution: 1.5→1.55 Å / Redundancy: 1.16 % / Rmerge(I) obs: 0.205 / % possible all: 34.1 |
Reflection | *PLUS Highest resolution: 1.6 Å / Lowest resolution: 50 Å / Num. obs: 28488 / % possible obs: 95.7 % / Redundancy: 1.7 % / Rmerge(I) obs: 0.039 |
Reflection shell | *PLUS Highest resolution: 1.6 Å / Lowest resolution: 1.66 Å / % possible obs: 87.1 % / Redundancy: 1.4 % / Num. unique obs: 2587 / Rmerge(I) obs: 0.124 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1DL5.PDB Resolution: 1.5→14.98 Å / Rfactor Rfree error: 0.005 / Data cutoff high absF: 944740.24 / Data cutoff high rms absF: 944740.24 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 Details: BULK SOLVENT MODEL USED. THE SAH TOPOLOGY/PARAMETER FILES FOR CNS WERE CREATED BY COMBINING THE STANDARD MET AND ADE ENTRIES. THE DEFAULT CNS DNA-RNA_REP.PARAM FOR RNA/DNA WAS MODIFIED IN ...Details: BULK SOLVENT MODEL USED. THE SAH TOPOLOGY/PARAMETER FILES FOR CNS WERE CREATED BY COMBINING THE STANDARD MET AND ADE ENTRIES. THE DEFAULT CNS DNA-RNA_REP.PARAM FOR RNA/DNA WAS MODIFIED IN THE LATER STAGES OF REFINEMENT. THE RIBOSE RING DIHEDRAL FORCE CONSTANTS WERE SET TO 0.0 TO ALLOW THE RIBOSE RING PUCKER TO FIT THE ELECTRON DENSITY.
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 56.88 Å2 / ksol: 0.402 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 18.4 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 1.5→14.98 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 1.5→1.59 Å / Rfactor Rfree error: 0.032 / Total num. of bins used: 6
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Xplor file |
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Refinement | *PLUS Highest resolution: 1.6 Å / Lowest resolution: 15 Å / Num. reflection obs: 27830 / σ(F): 0 / Num. reflection Rfree: 1384 / % reflection Rfree: 5 % / Rfactor obs: 0.18 / Rfactor Rfree: 0.211 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS Biso mean: 18.4 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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LS refinement shell | *PLUS Rfactor Rfree: 0.343 / % reflection Rfree: 4.9 % / Rfactor Rwork: 0.304 |