SMTL ID : 8frb.4 (3 other biounits)

Mouse acidic mammalian chitinase, catalytic domain in complex with N,N'-diacetylchitobiose at pH 5.25

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.70 Å

Oligo State

monomer

Ligands

1 x NAG- NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose(Non-covalent)

NAG-NAG.1: 20 residues within 4Å: Chain A: Y.27, W.31, F.58, G.98, W.99, N.100, F.101, D.138, E.140, A.183, M.210, Y.212, D.213, Y.267, Q.297, F.300, M.358, W.360, L.364 Ligands: HSQ-NAG.2 11 PLIP interactions: 11 interactions with chain A Hydrophobic interactions: A:Y.267, A:F.300 Hydrogen bonds: A:W.99, A:N.100, A:N.100, A:Q.297, A:W.360 Water bridges: A:R.35, A:G.98, A:F.101, A:Q.297

1 x HSQ- NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetylamino-2-deoxy-alpha-L-idopyranose(Non-covalent)

HSQ-NAG.2: 17 residues within 4Å: Chain A: W.99, E.140, Y.141, A.185, G.186, G.187, I.188, N.190, M.210, Y.212, D.213, L.214, W.218, L.241, H.269 Ligands: NAG-NAG.1, NAG-NAG.1 7 PLIP interactions: 7 interactions with chain A Hydrophobic interactions: A:W.218, A:L.241 Hydrogen bonds: A:E.140, A:Y.141, A:D.213, A:Y.141, A:N.190, A:D.213, A:W.218 Water bridges: A:Y.141, A:G.186, A:D.213, A:D.213, A:G.186, A:G.187

2 x MG: MAGNESIUM ION(Non-functional Binders)

MG.3: 1 residues within 4Å: Chain A: N.85 No protein-ligand interaction detected (PLIP) MG.4: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Diaz, R.E. et al., Structural characterization of ligand binding and pH-specific enzymatic activity of mouse Acidic Mammalian Chitinase. Biorxiv (2024)

Release Date

2023-03-08

Peptides

Acidic mammalian chitinase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

Acidic mammalian chitinase

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