PDBe 4mqa

X-ray diffraction
2.25Å resolution

Human beta-tryptase co-crystal structure with {(1,1,3,3-tetramethyldisiloxane-1,3-diyl)bis[5-(methylsulfanyl)benzene-3,1-diyl]}bis({4-[3-(aminomethyl)phenyl]piperidin-1-yl}methanone)

Source organism: Homo sapiens
Entry authors: White A, Lakshminarasimhan D, Suto R

Function and Biology Details

Reaction catalysed:
Preferential cleavage: Arg-|-, Lys-|-, but with more restricted specificity than trypsin.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assemblies composition:
homo tetramer
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Tryptase alpha/beta-1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 245 amino acids
Theoretical weight: 27.49 KDa
Source organism: Homo sapiens
Expression system: Komagataella pastoris
  • Canonical: Q15661 (Residues: 31-275; Coverage: 95%)
Gene names: TPS1, TPS2, TPSAB1, TPSB1
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P3121
Unit cell:
a: 78.168Å b: 78.168Å c: 165.458Å
α: 90° β: 90° γ: 120°
R R work R free
0.181 0.177 0.251
Expression system: Komagataella pastoris