3SIC

MOLECULAR RECOGNITION AT THE ACTIVE SITE OF SUBTILISIN BPN': CRYSTALLOGRAPHIC STUDIES USING GENETICALLY ENGINEERED PROTEINACEOUS INHIBITOR SSI (STREPTOMYCES SUBTILISIN INHIBITOR)

Structural Biology Knowledgebase: 3SIC SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Observed: 0.178

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 3SIC

Classification: COMPLEX(PROTEINASE / INHIBITOR)

Total Structure Weight: 38571.26

Macromolecule Entities
Molecule Chains Length Organism Details
SUBTILISIN BPN' E 275 Bacillus amyloliquefaciens EC#: 3.4.21.62 IUBMB
Gene Name(s): apr
STREPTOMYCES SUBTILISIN INHIBITOR (SSI) I 107 Streptomyces albogriseolus Mutation: M73K
Gene Name(s): ssi

Small Molecules
Ligands 1 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
CA
Query on CA

E CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Observed: 0.178
  • Space Group: I 2 2 2

Unit Cell:

Length (Å) Angle (°)
a = 77.20 α = 90.00
b = 185.90 β = 90.00
c = 69.50 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1991-08-30
  • Released Date: 1994-01-31
  • Deposition author(s): Mitsui, Y., Takeuchi, Y., Nakamura, K.T.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4