SMTL ID : 9bot.1

Human mesotrypsin (PRSS3) unliganded and in autoinhibited (E*) conformation

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.60 Å

Oligo State

monomer

Ligands

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

SO4.1: 6 residues within 4Å: Chain A: H.40, Q.174, R.175, A.177, G.194, H.195 9 PLIP interactions: 9 interactions with chain A Hydrogen bonds: A:R.175 Water bridges: A:H.40, A:R.175, A:R.175, A:D.176, A:A.177, A:G.194 Salt bridges: A:H.40, A:H.195 SO4.2: 4 residues within 4Å: Chain A: P.132, D.133, E.134, K.136 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:D.133, A:E.134 Salt bridges: A:K.136

1 x CA: CALCIUM ION(Non-covalent)

CA.3: 8 residues within 4Å: Chain A: E.52, H.53, N.54, I.55, V.57, L.58, E.59, E.62 6 PLIP interactions: 5 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:E.52, A:N.54, A:V.57, A:E.59, A:E.62, H2O.2

1 x ACT: ACETATE ION(Non-functional Binders)

ACT.4: 3 residues within 4Å: Chain A: K.149, P.153, G.154 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:G.154 Water bridges: A:K.149

1 x GOL: GLYCEROL(Non-functional Binders)

GOL.5: 8 residues within 4Å: Chain A: P.110, A.111, A.112, V.142, L.143, T.144, Q.145, F.161 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:A.112, A:Q.145

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Coban, M. et al., Discovery of an autoinhibited conformation in mesotrypsin reveals a new strategy for selective serine protease inhibition. Sci Adv (2025)

Release Date

2025-06-11

Peptides

Trypsin-3: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Trypsin-3

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