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- PDB-3ng6: The crystal structure of hemoglobin I from Trematomus newnesi in ... -

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Basic information

Entry
Database: PDB / ID: 3ng6
TitleThe crystal structure of hemoglobin I from Trematomus newnesi in deoxygenated state obtained through an oxidation/reduction cycle in which potassium hexacyanoferrate and sodium dithionite were alternatively added
Components
  • Hemoglobin subunit alpha-1
  • Hemoglobin subunit beta-1/2
KeywordsOXYGEN TRANSPORT / Root effect / fish hemoglobin / antarctic fish
Function / homology
Function and homology information


haptoglobin binding / organic acid binding / haptoglobin-hemoglobin complex / hemoglobin complex / hydrogen peroxide catabolic process / oxygen carrier activity / peroxidase activity / oxygen binding / blood microparticle / iron ion binding ...haptoglobin binding / organic acid binding / haptoglobin-hemoglobin complex / hemoglobin complex / hydrogen peroxide catabolic process / oxygen carrier activity / peroxidase activity / oxygen binding / blood microparticle / iron ion binding / heme binding / metal ion binding
Similarity search - Function
Hemoglobin, pi / Hemoglobin, alpha-type / Hemoglobin, beta-type / : / Globin/Protoglobin / Globins / Globin-like / Globin / Globin / Globin domain profile. ...Hemoglobin, pi / Hemoglobin, alpha-type / Hemoglobin, beta-type / : / Globin/Protoglobin / Globins / Globin-like / Globin / Globin / Globin domain profile. / Globin-like superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING FE / Hemoglobin subunit alpha-1 / Hemoglobin subunit beta-1/2
Similarity search - Component
Biological speciesTrematomus newnesi (dusky notothen)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsVergara, A. / Vitagliano, L. / Merlino, A. / Sica, F. / Marino, K. / Mazzarella, L.
CitationJournal: J.Biol.Chem. / Year: 2010
Title: An order-disorder transition plays a role in switching off the root effect in fish hemoglobins.
Authors: Vergara, A. / Vitagliano, L. / Merlino, A. / Sica, F. / Marino, K. / Verde, C. / di Prisco, G. / Mazzarella, L.
History
DepositionJun 11, 2010Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 28, 2010Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Sep 6, 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 / 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_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_atom_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_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_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_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_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.3Nov 27, 2024Group: Structure summary / Category: pdbx_entry_details

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Hemoglobin subunit alpha-1
B: Hemoglobin subunit beta-1/2
C: Hemoglobin subunit alpha-1
D: Hemoglobin subunit beta-1/2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)66,3658
Polymers63,8994
Non-polymers2,4664
Water1,892105
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area11670 Å2
ΔGint-103 kcal/mol
Surface area23360 Å2
MethodPISA
Unit cell
Length a, b, c (Å)61.882, 61.882, 187.014
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number76
Space group name H-MP41

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Components

#1: Protein Hemoglobin subunit alpha-1 / Hemoglobin alpha-1 chain / Alpha-1-globin


Mass: 15703.281 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Trematomus newnesi (dusky notothen) / References: UniProt: P45718
#2: Protein Hemoglobin subunit beta-1/2 / Hemoglobin beta-1/2 chain / Beta-1/2-globin


Mass: 16246.427 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Trematomus newnesi (dusky notothen) / References: UniProt: P45720
#3: Chemical
ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME


Mass: 616.487 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 105 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationN

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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: 2.8 Å3/Da / Density % sol: 56.06 %
Crystal growTemperature: 293 K / Method: liquid diffusion / pH: 6
Details: protein at 10 mg/ml, in a 100 mM sodium acetate buffer pH 6.0, 2mM dithionite, poured into a capillary containing 20% (w/v) MPEG 5000 (2 mM dithionite), LIQUID DIFFUSION, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU MICROMAX-007 HF / Wavelength: 1.5418 Å
DetectorType: ENRAF-NONIUS / Detector: CCD / Date: Jan 1, 2010 / Details: mirrors
RadiationMonochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.2→26.6 Å / Num. obs: 32263

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Processing

Software
NameClassification
CrystalCleardata collection
AMoREphasing
SHELXL-97refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entry 2H8F

2h8f


Resolution: 2.2→26.6 Å / Isotropic thermal model: Isotropic / Cross valid method: THROUGHOUT / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.247 1607 -RANDOM
Rwork0.195 ---
obs-32075 90.9 %-
Refinement stepCycle: LAST / Resolution: 2.2→26.6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4494 0 172 105 4771
Refine LS restraints
Refine-IDType
X-RAY DIFFRACTIONs_bond_d
X-RAY DIFFRACTIONs_angle_d
X-RAY DIFFRACTIONs_similar_dist
X-RAY DIFFRACTIONs_from_restr_planes
X-RAY DIFFRACTIONs_zero_chiral_vol
X-RAY DIFFRACTIONs_non_zero_chiral_vol
X-RAY DIFFRACTIONs_anti_bump_dis_restr
X-RAY DIFFRACTIONs_rigid_bond_adp_cmpnt
X-RAY DIFFRACTIONs_similar_adp_cmpnt
X-RAY DIFFRACTIONs_approx_iso_adps

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