1C1S

RECRUITING ZINC TO MEDIATE POTENT, SPECIFIC INHIBITION OF SERINE PROTEASES

Structural Biology Knowledgebase: 1C1S SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.63 Å
  • R-Value Free: 0.206
  • R-Value Work: 0.185

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 1C1S

Classification: HYDROLASE / HYDROLASE INHIBITOR

Total Structure Weight: 24007.78

Macromolecule Entities
Molecule Chains Length Organism Details
TRYPSIN A 223 Bos taurus EC#: 3.4.21.4 IUBMB
Details: COMPLEXED WITH BIS(5-AMIDINO-2-BENZIMIDAZOLYL)METHANE
Gene Name(s):

Small Molecules
Ligands 4 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
BAB
Query on BAB

A BIS(5-AMIDINO-BENZIMIDAZOLYL)METHANE
C17 H19 N8
QZKOOEFIMWKZPK-UHFFFAOYSA-Q
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
PO4
Query on PO4

A PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CA
Query on CA

A CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
NA
Query on NA

A SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
BAB Ki: 17 nM (100) BindingDB

N/A in BindingMoad
N/A in PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.63 Å
  • R-Value Free: 0.206
  • R-Value Work: 0.185
  • Space Group: P 31 2 1
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 55.35 α = 90.00
b = 55.35 β = 90.00
c = 109.80 γ = 120.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1999-07-21
  • Released Date: 2000-07-26
  • Deposition author(s): Katz, B.A., Luong, C.

Revision History

  • 2011-07-13
    Type: Atom occupancy | Details: Restore author's atom occupancy
  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4