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- PDB-1yjz: K226M Mutant Of Serine Hydroxymethyltransferase From B. Stearothe... -

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Basic information

Entry
Database: PDB / ID: 1yjz
TitleK226M Mutant Of Serine Hydroxymethyltransferase From B. Stearothermophilus
ComponentsSERINE HYDROXYMETHYLTRANSFERASE
KeywordsTRANSFERASE / SHMT / Mutant / Catalysis
Function / homology
Function and homology information


glycine hydroxymethyltransferase / glycine hydroxymethyltransferase activity / glycine biosynthetic process from serine / tetrahydrofolate interconversion / pyridoxal phosphate binding / cytoplasm
Similarity search - Function
Serine hydroxymethyltransferase, pyridoxal phosphate binding site / Serine hydroxymethyltransferase pyridoxal-phosphate attachment site. / Serine hydroxymethyltransferase / Serine hydroxymethyltransferase-like domain / Serine hydroxymethyltransferase / Aspartate Aminotransferase, domain 1 / Aspartate Aminotransferase, domain 1 / Aspartate Aminotransferase; domain 2 / Type I PLP-dependent aspartate aminotransferase-like (Major domain) / Pyridoxal phosphate-dependent transferase, small domain ...Serine hydroxymethyltransferase, pyridoxal phosphate binding site / Serine hydroxymethyltransferase pyridoxal-phosphate attachment site. / Serine hydroxymethyltransferase / Serine hydroxymethyltransferase-like domain / Serine hydroxymethyltransferase / Aspartate Aminotransferase, domain 1 / Aspartate Aminotransferase, domain 1 / Aspartate Aminotransferase; domain 2 / Type I PLP-dependent aspartate aminotransferase-like (Major domain) / Pyridoxal phosphate-dependent transferase, small domain / Pyridoxal phosphate-dependent transferase, major domain / Pyridoxal phosphate-dependent transferase / Alpha-Beta Complex / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
PYRIDOXAL-5'-PHOSPHATE / Serine hydroxymethyltransferase
Similarity search - Component
Biological speciesGeobacillus stearothermophilus (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.1 Å
AuthorsBhavani, S. / Trivedi, V. / Jala, V.R. / Subramanya, H.S. / Kaul, P. / Purnima, K. / Prakash, V. / Appaji, R.N. / Savithri, H.S.
CitationJournal: Biochemistry / Year: 2005
Title: Role of Lys-226 in the Catalytic Mechanism of Bacillus Stearothermophilus Serine Hydroxymethyltransferase-Crystal Structure and Kinetic Studies
Authors: Bhavani, S. / Trivedi, V. / Jala, V.R. / Subramanya, H.S. / Kaul, P. / Purnima, K. / Prakash, V. / Appaji, R.N. / Savithri, H.S.
History
DepositionJan 16, 2005Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Jun 14, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Oct 25, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _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

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Assembly

Deposited unit
A: SERINE HYDROXYMETHYLTRANSFERASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)45,9612
Polymers45,7141
Non-polymers2471
Water2,468137
1
A: SERINE HYDROXYMETHYLTRANSFERASE
hetero molecules

A: SERINE HYDROXYMETHYLTRANSFERASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)91,9224
Polymers91,4282
Non-polymers4942
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-x,-y,z1
Buried area8400 Å2
ΔGint-46 kcal/mol
Surface area26660 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)61.048, 106.524, 56.903
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212
DetailsThe second part of the biological assembly is generated by the two fold axis : -X, -Y, Z.

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Components

#1: Protein SERINE HYDROXYMETHYLTRANSFERASE /


Mass: 45713.754 Da / Num. of mol.: 1 / Fragment: Serine methylase / Mutation: K226M
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Geobacillus stearothermophilus (bacteria)
Gene: SHMT / Plasmid: PRSETC / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3)
References: UniProt: Q7SIB6, glycine hydroxymethyltransferase
#2: Chemical ChemComp-PLP / PYRIDOXAL-5'-PHOSPHATE / VITAMIN B6 Phosphate / Pyridoxal phosphate


Mass: 247.142 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H10NO6P
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 137 / 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: 2.02 Å3/Da / Density % sol: 39.19 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: Hepes, MPD, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU300 / Wavelength: 1.5418 Å
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Oct 10, 2003 / Details: Mirrors
RadiationMonochromator: Ni filter / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.1→15 Å / Num. all: 22373 / Num. obs: 22373 / % possible obs: 84.6 % / Observed criterion σ(F): -3 / Observed criterion σ(I): -3 / Redundancy: 5.7 % / Net I/σ(I): 25.1
Reflection shellResolution: 2.1→2.17 Å / Redundancy: 6.1 % / Rmerge(I) obs: 0.084 / Num. unique all: 1945 / % possible all: 89.1

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Processing

Software
NameClassification
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
REFMACrefinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1KKJ

1kkj


Resolution: 2.1→10 Å / Isotropic thermal model: Anisotrophic / σ(I): 3
RfactorNum. reflection
Rfree0.26084 698
Rwork0.21173 -
all0.21477 22079
obs0.21477 13445
Refinement stepCycle: LAST / Resolution: 2.1→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3115 0 15 137 3267
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_bond_d0.013
X-RAY DIFFRACTIONp_angle_d0.036
X-RAY DIFFRACTIONp_planar_d0.066
LS refinement shellResolution: 2.1→2.17 Å / Rfactor Rfree error: 0.21477
RfactorNum. reflection
Rfree0.26084 698
Rwork0.20751 -
obs-13445

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