SMTL ID : 9ga8.1

The crystal structure of human Annexin A4 from crystals grown at 4 mM Calcium

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.50 Å

Oligo State

monomer

Ligands

3 x CA: CALCIUM ION(Non-covalent)

CA.1: 4 residues within 4Å: Chain A: M.27, G.29, G.31, E.71 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:M.27, A:G.29, A:G.31, A:E.71, H2O.6 CA.2: 6 residues within 4Å: Chain A: M.99, G.101, A.102, G.103, T.104, D.143 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:M.99, A:G.101, A:G.103, A:D.143, A:D.143 CA.3: 4 residues within 4Å: Chain A: M.258, G.260, G.262, D.302 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:M.258, A:G.260, A:G.262, A:D.302, H2O.6

4 x SO4: SULFATE ION(Non-functional Binders)

SO4.4: 2 residues within 4Å: Chain A: R.24, K.28 4 PLIP interactions: 4 interactions with chain A Water bridges: A:R.24, A:R.24 Salt bridges: A:R.24, A:K.28 SO4.5: 4 residues within 4Å: Chain A: R.24, K.28, G.29, R.62 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:G.29 Water bridges: A:R.24, A:M.27, A:G.29 Salt bridges: A:R.24, A:R.62 SO4.6: 3 residues within 4Å: Chain A: R.284, G.317, D.318 3 PLIP interactions: 3 interactions with chain A Water bridges: A:G.317, A:G.317 Salt bridges: A:R.284 SO4.7: 2 residues within 4Å: Chain A: R.122, Q.126 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Q.126 Salt bridges: A:R.122

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Di Micco, S. et al., Computational, crystallographic, and biophysical characterizations provide insights into calcium and phosphate binding by human annexin A4. Int.J.Biol.Macromol. (2025)

Release Date

2025-06-04

Peptides

Annexin A4: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Annexin A4

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