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- PDB-2mgi: HIGH RESOLUTION CRYSTAL STRUCTURES OF FIVE DISTAL HISTIDINE MUTAN... -

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Basic information

Entry
Database: PDB / ID: 2mgi
TitleHIGH RESOLUTION CRYSTAL STRUCTURES OF FIVE DISTAL HISTIDINE MUTANTS OF SPERM WHALE MYOGLOBIN
ComponentsMYOGLOBIN
KeywordsOXYGEN STORAGE
Function / homology
Function and homology information


hydrogen peroxide mediated signaling pathway / oxygen carrier activity / oxygen binding / heme binding / metal ion binding
Similarity search - Function
Myoglobin / Globins / Globin family profile. / Globin-like / Globin / Globin / Globin-like superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING FE / Myoglobin
Similarity search - Component
Biological speciesPhyseter catodon (sperm whale)
MethodX-RAY DIFFRACTION / Resolution: 2 Å
AuthorsQuillin, M.L. / Arduini, R.M. / Phillips Jr., G.N.
Citation
Journal: J.Mol.Biol. / Year: 1993
Title: High-resolution crystal structures of distal histidine mutants of sperm whale myoglobin.
Authors: Quillin, M.L. / Arduini, R.M. / Olson, J.S. / Phillips Jr., G.N.
#1: Journal: Proteins / Year: 1990
Title: Crystal Structure of Myoglobin from a Synthetic Gene
Authors: Phillips Jr., G.N. / Arduini, R.M. / Springer, B.A. / Sligar, S.G.
#2: Journal: Proc.Natl.Acad.Sci.USA / Year: 1987
Title: High-Level Expression of Sperm Whale Myoglobin in Escherichia Coli
Authors: Springer, B.A. / Sligar, S.G.
History
DepositionMay 10, 1993Processing site: BNL
Revision 1.0Jan 31, 1994Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Feb 21, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / 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 / _pdbx_database_status.process_site / _struct_ref_seq_dif.details / _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

Downloads & links

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Assembly

Deposited unit
A: MYOGLOBIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)18,0413
Polymers17,3281
Non-polymers7132
Water2,468137
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)91.200, 91.200, 45.870
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number168
Space group name H-MP6
Atom site foot note1: THIS OXYGEN IS A WATER MOLECULE COORDINATED TO FE IN THE HEM GROUP.

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Components

#1: Protein MYOGLOBIN /


Mass: 17328.121 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Physeter catodon (sperm whale) / Gene: SYNTHETIC GENE / References: UniProt: P02185
#2: Chemical ChemComp-SO4 / SULFATE ION / Sulfate


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4
#3: Chemical ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME / Heme B


Mass: 616.487 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#4: 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

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Sample preparation

CrystalDensity Matthews: 3.18 Å3/Da / Density % sol: 61.29 %
Crystal grow
*PLUS
pH: 9 / Method: batch method / Details: micro seeding
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
160 mg/mlprotein11
22.4 Mammonium sulfate11
315 mMTris-HCl11
40.75 mMEDTA11

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Data collection

Reflection
*PLUS
Highest resolution: 1.8 Å / % possible obs: 89.9 % / Rmerge(I) obs: 0.07

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
X-PLORphasing
RefinementResolution: 2→5 Å /
RfactorNum. reflection
Rwork0.148 -
obs0.148 12491
Refinement stepCycle: LAST / Resolution: 2→5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1222 0 49 136 1407
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.015
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg2.209
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d21.42
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d4.422
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Rfactor obs: 0.148 / Rfactor Rwork: 0.148
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: x_angle_d / Dev ideal: 2.209

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