8SDP

HTRA-1 PDSA bound to CKP 3A7

• PDB DOI: https://doi.org/10.2210/pdb8SDP/pdb

• Classification: PEPTIDE BINDING PROTEIN
• Organism(s): Homo sapiens, Ecballium elaterium
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2023-04-07 Released: 2024-07-03 
• Deposition Author(s): Ultsch, M.H., Kirchhofer, D., Wei, Y.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.87 Å
• R-Value Free: 0.295 
• R-Value Work: 0.276 
• R-Value Observed: 0.277 

Starting Model: experimental

Literature

HTRA-1 PDSA bound to CKP 3A7

Ultsch, M.H.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A3B3 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 90.79 kDa 
• Atom Count: 4,826 
• Modelled Residue Count: 687 
• Deposited Residue Count: 831 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine protease HTRA1	A, B, C	240	Homo sapiens	Mutation(s): 1  Gene Names: HTRA1, HTRA, PRSS11 EC: 3.4.21
UniProt & NIH Common Fund Data Resources
Find proteins for Q92743 (Homo sapiens) Explore Q92743  Go to UniProtKB:  Q92743
GTEx:  ENSG00000166033

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cysteine knot peptide 3A7	D [auth I], E [auth X], F [auth Y]	37	Ecballium elaterium	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	G [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.87 Å
• R-Value Free: 0.295 
• R-Value Work: 0.276 
• R-Value Observed: 0.277 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.27	α = 90
b = 86.79	β = 90
c = 199.71	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
STARANISO	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-07-03 
Deposition Author(s): Ultsch, M.H., Kirchhofer, D., Wei, Y.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2024-07-03
  Type: Initial release