9cqn

Human OxyHb (C2 symmetry) obtained using the SPT Labtech chameleon In the presence of 25 uM sodium dithionite under Al's oil

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Hemoglobin subunit alpha

OrganismNot specified

UniProt P69905

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Hemoglobin subunit beta × 2 (P68871) PROTOPORPHYRIN IX CONTAINING FE × 4 OXYGEN MOLECULE × 4 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name HBA_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–139; UniProt 3–141 Author chain C; PDBConstruct 1–139; UniProt 3–141

Hemoglobin subunit beta

OrganismNot specified

UniProt P68871

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Hemoglobin subunit alpha × 2 (P69905) PROTOPORPHYRIN IX CONTAINING FE × 4 OXYGEN MOLECULE × 4 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name HBB_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–145; UniProt 3–147 Author chain D; PDBConstruct 1–145; UniProt 3–147

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id9cqn
Deposition date deposition_date2024-07-19
Structure title titleHuman OxyHb (C2 symmetry) obtained using the SPT Labtech chameleon In the presence of 25 uM sodium dithionite under Al's oil
Keywords keywordsHemoglobin, anaerobic, oxygen, heme, OXYGEN BINDING; OXYGEN BINDING
Experimental Method methodELECTRON MICROSCOPY
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

9cqn__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

9cqn__assembly_1__model_1 | I(q)

10-2 10-1 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

9cqn__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)24.69 Å
Rg (electron density)23.46 Å
Total Rg24.37 Å
Atom count4500
Residues568
Excluded volume80479 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 9cqn__assembly_1__model_1 tetrameric (4) Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (5)

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7. Citations (1)