7qbd

X-ray diffraction
4.18Å resolution

TC:CD320 in complex with nanobody TC-Nb26

Released:

Function and Biology Details

Structure analysis Details

Assemblies composition:
hetero dimer
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-210776 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Transcobalamin-2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 409 amino acids
Theoretical weight: 45.65 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P20062 (Residues: 19-427; Coverage: 100%)
Gene names: TC2, TCN2
Sequence domains:
CD320 antigen Chains: C, D
Molecule details ›
Chains: C, D
Length: 147 amino acids
Theoretical weight: 15.61 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q9NPF0 (Residues: 52-198; Coverage: 60%)
Gene names: 8D6A, CD320, UNQ198/PRO224
Sequence domains: Low-density lipoprotein receptor domain class A
Antitranscobalamin-nanobody TC-Nb26 Chain: E
Molecule details ›
Chain: E
Length: 132 amino acids
Theoretical weight: 14.77 KDa
Source organism: Vicugna pacos
Expression system: Escherichia coli

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X06SA
Spacegroup: P43212
Unit cell:
a: 102.129Å b: 102.129Å c: 360.998Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.262 0.262 0.272
Expression systems:
  • Spodoptera frugiperda
  • Escherichia coli