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- PDB-1qsh: MAGNESIUM(II)-AND ZINC(II)-PROTOPORPHYRIN IX'S STABILIZE THE LOWE... -

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Basic information

Entry
Database: PDB / ID: 1qsh
TitleMAGNESIUM(II)-AND ZINC(II)-PROTOPORPHYRIN IX'S STABILIZE THE LOWEST OXYGEN AFFINITY STATE OF HUMAN HEMOGLOBIN EVEN MORE STRONGLY THAN DEOXYHEME
Components
  • PROTEIN (HEMOGLOBIN ALPHA CHAIN)
  • PROTEIN (HEMOGLOBIN BETA CHAIN)
KeywordsOXYGEN STORAGE/TRANSPORT / HEMOGLOBIN / OXYGEN AFFINITY / ALLOSTERIC EFFECT / METAL SUBSTITUTION / TRIGGER MECHANISM / OXYGEN STORAGE-TRANSPORT COMPLEX
Function / homology
Function and homology information


nitric oxide transport / hemoglobin alpha binding / haptoglobin-hemoglobin complex / organic acid binding / cellular oxidant detoxification / hemoglobin binding / renal absorption / hemoglobin complex / oxygen transport / Scavenging of heme from plasma ...nitric oxide transport / hemoglobin alpha binding / haptoglobin-hemoglobin complex / organic acid binding / cellular oxidant detoxification / hemoglobin binding / renal absorption / hemoglobin complex / oxygen transport / Scavenging of heme from plasma / endocytic vesicle lumen / blood vessel diameter maintenance / hydrogen peroxide catabolic process / oxygen carrier activity / Late endosomal microautophagy / Heme signaling / carbon dioxide transport / response to hydrogen peroxide / Erythrocytes take up oxygen and release carbon dioxide / Erythrocytes take up carbon dioxide and release oxygen / Cytoprotection by HMOX1 / platelet aggregation / oxygen binding / regulation of blood pressure / Chaperone Mediated Autophagy / positive regulation of nitric oxide biosynthetic process / tertiary granule lumen / Factors involved in megakaryocyte development and platelet production / blood microparticle / ficolin-1-rich granule lumen / iron ion binding / heme binding / Neutrophil degranulation / extracellular space / extracellular exosome / extracellular region / membrane / metal ion binding / cytosol
Similarity search - Function
Hemoglobin, pi / Hemoglobin, alpha-type / Hemoglobin, beta-type / Globin/Protoglobin / Globins / Globin family profile. / Globin-like / Globin / Globin / Globin-like superfamily ...Hemoglobin, pi / Hemoglobin, alpha-type / Hemoglobin, beta-type / Globin/Protoglobin / Globins / Globin family profile. / Globin-like / Globin / Globin / Globin-like superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING MG / PROTOPORPHYRIN IX CONTAINING FE / Hemoglobin subunit beta / Hemoglobin subunit alpha
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 1.7 Å
AuthorsMiyazaki, G. / Morimoto, H. / Yun, K.-M. / Park, S.-Y. / Nakagawa, A. / Minagawa, H. / Shibayama, N.
Citation
Journal: J.Mol.Biol. / Year: 1999
Title: Magnesium(II) and zinc(II)-protoporphyrin IX's stabilize the lowest oxygen affinity state of human hemoglobin even more strongly than deoxyheme.
Authors: Miyazaki, G. / Morimoto, H. / Yun, K.M. / Park, S.Y. / Nakagawa, A. / Minagawa, H. / Shibayama, N.
#1: Journal: J.Mol.Biol. / Year: 1996
Title: High-Resolution Crystal Structure of Magnesium(MgII)-Iron(FeII) Hybrid Hemoglobin with Liganded Beta Subunits
Authors: Park, S.-Y. / Nakagawa, A. / Morimoto, H.
History
DepositionJun 22, 1999Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 2, 1999Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Feb 14, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_struct_conn_angle / pdbx_validate_chiral / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _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_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_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_comp_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _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_asym_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_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: PROTEIN (HEMOGLOBIN ALPHA CHAIN)
B: PROTEIN (HEMOGLOBIN BETA CHAIN)
C: PROTEIN (HEMOGLOBIN ALPHA CHAIN)
D: PROTEIN (HEMOGLOBIN BETA CHAIN)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)64,4848
Polymers62,0814
Non-polymers2,4034
Water7,206400
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area11310 Å2
ΔGint-102 kcal/mol
Surface area23480 Å2
MethodPISA
Unit cell
Length a, b, c (Å)63.150, 83.590, 53.800
Angle α, β, γ (deg.)90.00, 99.34, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein PROTEIN (HEMOGLOBIN ALPHA CHAIN)


Mass: 15150.353 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P69905
#2: Protein PROTEIN (HEMOGLOBIN BETA CHAIN)


Mass: 15890.198 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P68871
#3: Chemical ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME / Heme B


Mass: 616.487 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#4: Chemical ChemComp-HEG / PROTOPORPHYRIN IX CONTAINING MG


Mass: 584.947 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C34H32MgN4O4
#5: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 400 / 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: 2

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Sample preparation

CrystalDensity Matthews: 2.26 Å3/Da / Density % sol: 45.48 %
Crystal growTemperature: 298 K / Method: batch method / pH: 6.5
Details: Ammonium sulfate , pH 6.5, Batch Method, temperature 298K
Crystal grow
*PLUS
Details: Perutz, M.F., (1968) J.Crystal Growth, 2, 54.
Components of the solutions
*PLUS
IDConc.Crystal-IDSol-IDChemical formula
14 M11(NH4)2SO4
22 M11(NH4)H2PO4
32 M11(NH4)HPO4

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Data collection

DiffractionMean temperature: 293 K
Diffraction sourceSource: SYNCHROTRON / Site: Photon Factory / Beamline: BL-6A / Wavelength: 1.04
DetectorType: FUJI / Detector: IMAGE PLATE / Date: Nov 20, 1997
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.04 Å / Relative weight: 1
ReflectionResolution: 1.2→100 Å / Num. all: 283630 / Num. obs: 108393 / % possible obs: 62.6 % / Observed criterion σ(I): 0 / Redundancy: 2.6 % / Rmerge(I) obs: 0.071
Reflection shellResolution: 1.7→1.81 Å / Num. unique all: 7251 / % possible all: 72.3
Reflection
*PLUS
Highest resolution: 1.7 Å / % possible obs: 90.1 %
Reflection shell
*PLUS
Lowest resolution: 1.78 Å / % possible obs: 70.7 %

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Processing

Software
NameClassification
X-PLORmodel building
PROLSQrefinement
WEISdata reduction
WEISdata scaling
X-PLORphasing
RefinementResolution: 1.7→10 Å / σ(F): 3
Stereochemistry target values: PROLSQ (Hendrickson & Konnert)
RfactorNum. reflection% reflection
Rwork0.175 --
all0.175 54354 -
obs0.175 47348 90.1 %
Refinement stepCycle: LAST / Resolution: 1.7→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4384 0 172 400 4956
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_bond_d0.016
X-RAY DIFFRACTIONp_angle_d2.2
Software
*PLUS
Name: PROLSQ / Classification: refinement
Refinement
*PLUS
Solvent computation
*PLUS
Displacement parameters
*PLUS

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