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- PDB-2ah9: Crystal Structure of Human M340H-Beta-1,4-Galactosyltransferase-I... -
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Open data
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Basic information
Entry | Database: PDB / ID: 2ah9 | |||||||||
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Title | Crystal Structure of Human M340H-Beta-1,4-Galactosyltransferase-I (M340H-B4Gal-T1) in Complex with Chitotriose | |||||||||
![]() | Beta-1,4-galactosyltransferase 1 | |||||||||
![]() | TRANSFERASE / beta1 / 4-Galactosyltransferase-I / Trisaccharide / Chitotriose / Closed conformation / Mutant | |||||||||
Function / homology | ![]() Defective B4GALT1 causes CDG-2d / galactosyltransferase activity / Interaction With Cumulus Cells And The Zona Pellucida / Defective B4GALT1 causes B4GALT1-CDG (CDG-2d) / penetration of zona pellucida / Lactose synthesis / regulation of acrosome reaction / Keratan sulfate biosynthesis / lactose synthase / neolactotriaosylceramide beta-1,4-galactosyltransferase ...Defective B4GALT1 causes CDG-2d / galactosyltransferase activity / Interaction With Cumulus Cells And The Zona Pellucida / Defective B4GALT1 causes B4GALT1-CDG (CDG-2d) / penetration of zona pellucida / Lactose synthesis / regulation of acrosome reaction / Keratan sulfate biosynthesis / lactose synthase / neolactotriaosylceramide beta-1,4-galactosyltransferase / beta-N-acetylglucosaminylglycopeptide beta-1,4-galactosyltransferase / N-acetyllactosamine synthase / N-acetyllactosamine synthase activity / positive regulation of circulating fibrinogen levels / beta-N-acetylglucosaminylglycopeptide beta-1,4-galactosyltransferase activity / N-Glycan antennae elongation / UDP-galactosyltransferase activity / Golgi trans cisterna / macrophage migration / lactose synthase activity / development of secondary sexual characteristics / lactose biosynthetic process / oligosaccharide biosynthetic process / desmosome / galactose metabolic process / acute inflammatory response / positive regulation of epithelial cell proliferation involved in wound healing / Pre-NOTCH Processing in Golgi / binding of sperm to zona pellucida / angiogenesis involved in wound healing / protein N-linked glycosylation / azurophil granule membrane / Transferases; Glycosyltransferases; Hexosyltransferases / Golgi cisterna membrane / beta-tubulin binding / epithelial cell development / alpha-tubulin binding / cytoskeletal protein binding / extracellular matrix organization / secretory granule membrane / epithelial cell proliferation / filopodium / brush border membrane / lipid metabolic process / negative regulation of epithelial cell proliferation / manganese ion binding / basolateral plasma membrane / cell adhesion / positive regulation of apoptotic process / external side of plasma membrane / Golgi membrane / Neutrophil degranulation / Golgi apparatus / protein-containing complex / extracellular space / extracellular exosome / identical protein binding / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ![]() ![]() ![]() | |||||||||
![]() | Ramasamy, V. / Ramakrishnan, B. / Boeggeman, E. / Ratner, D.M. / Seeberger, P.H. / Qasba, P.K. | |||||||||
![]() | ![]() Title: Oligosaccharide Preferences of beta1,4-Galactosyltransferase-I: Crystal Structures of Met340His Mutant of Human beta1,4-Galactosyltransferase-I with a Pentasaccharide and Trisaccharides of the N-Glycan Moiety Authors: Ramasamy, V. / Ramakrishnan, B. / Boeggeman, E. / Ratner, D.M. / Seeberger, P.H. / Qasba, P.K. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 199.7 KB | Display | ![]() |
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PDB format | ![]() | 157.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 2 MB | Display | ![]() |
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Full document | ![]() | 2 MB | Display | |
Data in XML | ![]() | 40.7 KB | Display | |
Data in CIF | ![]() | 57.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 2ae7C ![]() 2aecC ![]() 2aesC ![]() 2agdC ![]() 1o0rS 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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1 | ![]()
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2 | ![]()
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3 | ![]()
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4 | ![]()
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Unit cell |
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Components
-Protein / Sugars , 2 types, 6 molecules ABC
#1: Protein | Mass: 32773.230 Da / Num. of mol.: 3 / Fragment: Catalytic domain, Residues 126-398 / Mutation: M340H, C338T, R337T Source method: isolated from a genetically manipulated source Details: N-acetyllactosamine synthase part / Source: (gene. exp.) ![]() Description: N-terminal carries t7 tag of 11 amino acids followed by GLY, SER & ALA Gene: B4GALT1, GGTB2 / Plasmid: PET23A / Species (production host): Escherichia coli / Production host: ![]() ![]() #2: Polysaccharide | |
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-Non-polymers , 7 types, 580 molecules ![](data/chem/img/UDH.gif)
![](data/chem/img/MN.gif)
![](data/chem/img/GOL.gif)
![](data/chem/img/SO4.gif)
![](data/chem/img/DIO.gif)
![](data/chem/img/MES.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/MN.gif)
![](data/chem/img/GOL.gif)
![](data/chem/img/SO4.gif)
![](data/chem/img/DIO.gif)
![](data/chem/img/MES.gif)
![](data/chem/img/HOH.gif)
#3: Chemical | #4: Chemical | #5: Chemical | ChemComp-GOL / #6: Chemical | ChemComp-SO4 / #7: Chemical | #8: Chemical | ChemComp-MES / | #9: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.9 Å3/Da / Density % sol: 67.8 % |
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Crystal grow | Temperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6.5 Details: mes, ammonium sulfate, dioxane, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 4 / Detector: CCD / Date: Oct 2, 2003 / Details: Mirrors |
Radiation | Monochromator: Graphite / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.97946 Å / Relative weight: 1 |
Reflection | Resolution: 2→40 Å / Num. obs: 102154 / % possible obs: 99.9 % / Observed criterion σ(I): 1 / Redundancy: 3.6 % / Biso Wilson estimate: 14.2 Å2 / Rsym value: 0.059 / Net I/σ(I): 21.1 |
Reflection shell | Resolution: 2→2.07 Å / Redundancy: 3.3 % / Mean I/σ(I) obs: 3.7 / Num. unique all: 10110 / Rsym value: 0.322 / % possible all: 99.8 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1O0R Resolution: 2→40 Å / Rfactor Rfree error: 0.002 / Data cutoff high absF: 3461932.03 / Data cutoff low absF: 0 / 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: 48.8679 Å2 / ksol: 0.381672 e/Å3 | ||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 27.5 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 2→40 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2→2.13 Å / Rfactor Rfree error: 0.007 / Total num. of bins used: 6
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Xplor file |
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