1cbm

THE 1.8 ANGSTROM STRUCTURE OF CARBONMONOXY-BETA4 HEMOGLOBIN: ANALYSIS OF A HOMOTETRAMER WITH THE R QUATERNARY STRUCTURE OF LIGANDED ALPHA2BETA2 HEMOGLOBIN

Method: X-RAY DIFFRACTION Dmax: 80.6 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

HEMOGLOBIN BETA 4 (CARBONMONOXY)

Homo sapiens

UniProt P68871

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–146 Chain B; UniProt 1–146 Chain C; UniProt 1–146 Chain D; UniProt 1–146 Not recorded SO4 SULFATE ION × 4 HEM PROTOPORPHYRIN IX CONTAINING FE × 4 CMO CARBON MONOXIDE × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 1.74 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

343 other PDB entries and 399 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HBB_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–146; UniProt 1–146 Author chain B; PDBConstruct 1–146; UniProt 1–146 Author chain C; PDBConstruct 1–146; UniProt 1–146 Author chain D; PDBConstruct 1–146; UniProt 1–146

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.

SAXS scattering curve SAXS Profile

SAXS profile for 1cbm

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1cbm
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1cbm
Deposition date deposition_date1993-02-18
Structure title titleTHE 1.8 ANGSTROM STRUCTURE OF CARBONMONOXY-BETA4 HEMOGLOBIN: ANALYSIS OF A HOMOTETRAMER WITH THE R QUATERNARY STRUCTURE OF LIGANDED ALPHA2BETA2 HEMOGLOBIN
Keywords keywordsOXYGEN TRANSPORT; OXYGEN TRANSPORT
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier24.31
Radius of gyration Rg (electron density) rg_electron23.16
Forward intensity I(0) i067592800.00
Molecular weight molecular_weight66427.0 kDa
Excluded volume excluded_volume83804 ų
Envelope volume envelope_volume97207 ų
Hydration-shell volume shell_volume33373 ų
Envelope diameter envelope_diameter70.5
Shell Rg shell_rg31.33
Envelope Rg envelope_rg23.02
Shape Rg shape_rg23.14
Total Rg total_rg24.10
Total atoms total_atoms4692
Residues n_residues584
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax80.6
Rg (real space) rg_real24.07
Rg uncertainty (real space) rg_real_error0.40
I(0) (real space) i0_real6.7590e+07
I(0) uncertainty (real space) i0_real_error1.0340e+06
Rg (reciprocal space) rg_reciprocal24.13
I(0) (reciprocal space) i0_reciprocal67600000.0000
Solution quality estimate total_estimate0.7915
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary32.0
Skewness Skewness skewness0.029
Kurtosis Kurtosis kurtosis-0.538
Angular range angular_range— – 0.3250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha25340000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.763; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1cbma_
Class classa — All alpha proteins
Fold Fold folda.1 — Globin-like
Superfamily Superfamily superfamilya.1.1 — Globin-like
Family Family familya.1.1.2 — Globins
Domain ID domain_idd1cbmb_
Class classa — All alpha proteins
Fold Fold folda.1 — Globin-like
Superfamily Superfamily superfamilya.1.1 — Globin-like
Family Family familya.1.1.2 — Globins
Domain ID domain_idd1cbmc_
Class classa — All alpha proteins
Fold Fold folda.1 — Globin-like
Superfamily Superfamily superfamilya.1.1 — Globin-like
Family Family familya.1.1.2 — Globins
Domain ID domain_idd1cbmd_
Class classa — All alpha proteins
Fold Fold folda.1 — Globin-like
Superfamily Superfamily superfamilya.1.1 — Globin-like
Family Family familya.1.1.2 — Globins

CATH v4.4 (4 domains)

Domain ID domain_id1cbmA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology490 — Globin-like
Homologous superfamily homologous superfamily10 — Globins
Domain ID domain_id1cbmB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology490 — Globin-like
Homologous superfamily homologous superfamily10 — Globins
Domain ID domain_id1cbmC00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology490 — Globin-like
Homologous superfamily homologous superfamily10 — Globins
Domain ID domain_id1cbmD00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology490 — Globin-like
Homologous superfamily homologous superfamily10 — Globins

8. Citations (1)

9. Files and Curves (10)