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- PDB-2spn: A NOVEL SITE-DIRECTED MUTANT OF MYOGLOBIN WITH AN UNUSUALLY HIGH ... -

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Basic information

Entry
Database: PDB / ID: 2spn
TitleA NOVEL SITE-DIRECTED MUTANT OF MYOGLOBIN WITH AN UNUSUALLY HIGH O2 AFFINITY AND LOW AUTOOXIDATION RATE
ComponentsMYOGLOBIN
KeywordsOXYGEN STORAGE
Function / homology
Function and homology information


Oxidoreductases; Acting on other nitrogenous compounds as donors / nitrite reductase activity / sarcoplasm / Oxidoreductases; Acting on a peroxide as acceptor; Peroxidases / removal of superoxide radicals / oxygen carrier activity / peroxidase activity / oxygen binding / heme binding / extracellular exosome / metal ion binding
Similarity search - Function
Myoglobin / Globins / Globin-like / Globin / Globin / Globin domain profile. / Globin-like superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING FE / OXYGEN MOLECULE / Myoglobin
Similarity search - Component
Biological speciesPhyseter catodon (sperm whale)
MethodX-RAY DIFFRACTION / Resolution: 1.7 Å
AuthorsQuillin, M.L. / Arduini, R.M. / Phillips Jr., G.N.
Citation
Journal: J.Biol.Chem. / Year: 1992
Title: A novel site-directed mutant of myoglobin with an unusually high O2 affinity and low autooxidation rate.
Authors: Carver, T.E. / Brantley Jr., R.E. / Singleton, E.W. / Arduini, R.M. / Quillin, M.L. / Phillips Jr., G.N. / Olson, J.S.
#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
DepositionAug 25, 1993Processing site: BNL
Revision 1.0Jan 31, 1994Provider: repository / Type: Initial release
Revision 1.1Mar 25, 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 / pdbx_struct_conn_angle / struct_conn / 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 / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _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

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Assembly

Deposited unit
A: MYOGLOBIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)18,1444
Polymers17,3991
Non-polymers7453
Water2,234124
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 COORDINATED TO FE IN THE HEM GROUP.

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Components

#1: Protein MYOGLOBIN


Mass: 17399.180 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Physeter catodon (sperm whale) / References: UniProt: P02185
#2: Chemical ChemComp-SO4 / SULFATE ION


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


Mass: 616.487 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#4: Chemical ChemComp-OXY / OXYGEN MOLECULE


Mass: 31.999 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: O2
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 124 / 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: 3.16 Å3/Da / Density % sol: 61.13 %
Crystal grow
*PLUS
Temperature: 20 ℃ / pH: 9 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
120 mg/mlprotein1drop
22.6-2.8 Mammonium sulfate1drop
320 mMTris-HCl1reservoir
41 mMEDTA1reservoir

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Data collection

Reflection
*PLUS
Highest resolution: 1.7 Å / Num. obs: 18399 / % possible obs: 76 % / Num. measured all: 38051 / Rmerge(I) obs: 0.167

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Processing

SoftwareName: PROFFT / Classification: refinement
RefinementResolution: 1.7→5 Å /
RfactorNum. reflection
obs0.166 9172
Refinement stepCycle: LAST / Resolution: 1.7→5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1228 0 50 124 1402
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONp_bond_d0.0190.02
X-RAY DIFFRACTIONp_angle_d0.0320.03
X-RAY DIFFRACTIONp_angle_deg
X-RAY DIFFRACTIONp_planar_d0.0570.06
X-RAY DIFFRACTIONp_hb_or_metal_coord
X-RAY DIFFRACTIONp_mcbond_it1.4431.5
X-RAY DIFFRACTIONp_mcangle_it1.9352
X-RAY DIFFRACTIONp_scbond_it2.973
X-RAY DIFFRACTIONp_scangle_it4.5514
X-RAY DIFFRACTIONp_plane_restr0.0260.03
X-RAY DIFFRACTIONp_chiral_restr0.1830.15
X-RAY DIFFRACTIONp_singtor_nbd0.2010.5
X-RAY DIFFRACTIONp_multtor_nbd0.3930.5
X-RAY DIFFRACTIONp_xhyhbond_nbd0.4610.5
X-RAY DIFFRACTIONp_xyhbond_nbd
X-RAY DIFFRACTIONp_planar_tor3.13
X-RAY DIFFRACTIONp_staggered_tor17.115
X-RAY DIFFRACTIONp_orthonormal_tor35.220
X-RAY DIFFRACTIONp_transverse_tor
X-RAY DIFFRACTIONp_special_tor

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