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MolNFT v1 · #19864 · protein

X-ray structure of calcium-loaded calbindomodulin (a calbindin D9K re- engineered to undergo a conformational opening) at 1.44 a resolution

1QX2 · Vitamin D-dependent calcium-binding protein, intestinal: “X-ray structure of calcium-loaded calbindomodulin (a calbindin D9K re- engineered to undergo a conformational…”. X-ray diffraction, 2 ligands (CA, ZN). MolNFT v1 #19864 on…

PDB
1QX2
Type
protein
Length
151 residues
Chains
2
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Vitamin D-dependent calcium-binding protein, intestinal
UniProt
P02633
Ligands
CA, ZN

Structure

x-ray diffraction · 2 distinct chains · 58% helix, 5% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AVitamin D-dependent calcium-binding protein, intestinalprotein7659% helix, 5% strandP02633
BVitamin D-dependent calcium-binding protein, intestinalprotein7557% helix, 5% strandP02633

Ligands and binding sites

  • CA · Calcium ion · metal · 4 copies · chains A, B
  • ZN · Zinc ion · metal · 2 copies · chains A, B

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

Interfaces

1 interface between chains.

  • A–B · 320 Ų buried · 6 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 2 modified (formylation).

Compared structures

  • 1QX2 · X-ray Structure of Calcium-loaded Calbindomodulin (A Calbindin D9k Re-engineered to… · the same entry in another collection · chain A against A, TM-score 1.00
  • P02633 · AlphaFold monomer V2.0 prediction for protein S100-G (P02633) · a predicted model of the same protein · chain A against A, TM-score 0.83

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