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Oxy-deoxy intermediate of V2 hemoglobin at 78% oxygen saturation

Analyse Oxy-deoxy intermediate of V2 hemoglobin at 78% oxygen saturation in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7VLC
Type
protein
Length
1,172 residues
Chains
8
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Extracellular A1 globin; Extracellular A2 globin; Extracellular B2 globin; Extracellular…
UniProt
S0BBU7, S0BBR6, S0BCU7, S0BAP9
Ligands
HEM, NAG, FUC, CA, OXY
Pockets
16 · best druggability 0.85

Structure

x-ray diffraction · 4 distinct chains · 75% helix, 0% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, EExtracellular A1 globinprotein14679% helix, 0% strandS0BBU7
B, FExtracellular A2 globinprotein14474% helix, 0% strandS0BBR6
C, GExtracellular B2 globinprotein14974% helix, 0% strandS0BCU7
D, HExtracellular B1 globinprotein14773% helix, 0% strandS0BAP9

Ligands and binding sites

  • HEM · Protoporphyrin IX containing Fe · ligand · 8 copies · chains A, D, B, C, E, H, F, G
  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 2 copies · chains D, H
  • FUC · alpha-L-fucopyranose · sugar · 2 copies · chains A, D, E, H
  • CA · Calcium ion · metal · 2 copies · chains B, F
  • OXY · Oxygen molecule · ion · 8 copies · chains A, B, C, D, E, F, G, H

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

16 pockets found on a 1 Å grid, 11 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
18570.850.8680HEM, OXY
28710.840.8677HEM, OXY
38420.830.8576HEM, OXY
48750.830.8479HEM, OXY
55600.690.7960empty

Interfaces

13 interfaces between chains.

  • B–C · 1166 Ų buried · 11 hydrogen bonds · protein-protein
  • F–G · 1159 Ų buried · 10 hydrogen bonds · protein-protein
  • A–D · 1117 Ų buried · 9 hydrogen bonds · protein-protein
  • E–H · 1071 Ų buried · 11 hydrogen bonds · protein-protein
  • A–E · 694 Ų buried · 6 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 10 disulfide, 2 glycan (disulfide, N-glycosylation).

Compared structures

  • 7VLC · Oxy-deoxy intermediate of V2 hemoglobin at 78% oxygen saturation · the same entry in another collection · chain A against A, TM-score 1.00

Analyse

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