3NZI image
Deposition Date 2010-07-16
Release Date 2011-02-23
Last Version Date 2024-11-20
Entry Detail
PDB ID:
3NZI
Keywords:
hydrolase/hydrolase substrate
Title:
Substrate induced remodeling of the active site regulates HtrA1 activity
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
(Taxon ID: )
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.75 Å
R-Value Free:
0.24
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
H 3
3NZI validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Serine protease HTRA1
Gene (Uniprot):HTRA1
Chain IDs:A
Chain Length:334
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q92743 Pfam ID:PF13365, PF17820 EC:3.4.21.107
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Citrate synthase
Chain IDs:B
Chain Length:7
Number of Molecules:1
Biological Source:
UniProt ID:Q9CZU6
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
B2V B VAL VALINE BORONIC ACID
Ligand Molecules
NA
Primary Citation
Substrate-induced remodeling of the active site regulates human HTRA1 activity.
Nat.Struct.Mol.Biol. 18 386 388 (2011)
PMID: 21297635 DOI: 10.1038/nsmb.2013

Abstact

Crystal structures of active and inactive conformations of the human serine protease HTRA1 reveal that substrate binding to the active site is sufficient to stimulate proteolytic activity. HTRA1 attaches to liposomes, digests misfolded proteins into defined fragments and undergoes substrate-mediated oligomer conversion. In contrast to those of other serine proteases, the PDZ domain of HTRA1 is dispensable for activation or lipid attachment, indicative of different underlying mechanistic features.

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Primary Citation of related structures
3NUM
3NWU