SCORPIO version 2.0
Structure-Calorimetry Of Reported Protein Interactions Online
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Comments
Comment definitions
ΔC
p
ITC datum
Protein and Ligand
Protein name
Trypsin
Ligand name
N-alpha-(2-naphthylsulfonyl)-n-(3-amidino-l-phenylalaninyl)-d-pipecolinic acid
N-alpha-(2-naphthylsulfonyl)-n-(3-amidino-l-phenylalaninyl)-d-pipecolinic acid
Interaction type
Synthetic ligands
ITC data
ITC data
Structure data
Structure data
ITC Information
n
0.9
± 0.06
ΔG
-36.4
± 0.2
kJ/mol
ΔH
-20.6
± 1.9
kJ/mol
-TΔS
15.8
± -1.9
kJ/mol
K
D
0.41
± 5.26
uM
ΔC
P
-2.59
±
0.1
kJ/mol/K
Notes on error determination
Not available
General comments
Altered change in enthalpy and entropy from further studies on protonation events during binding, see http://scorpio2-dev.biophysics.ismb.lon.ac.uk/citation/view/94.
Warnings
Instrument
Microcal MCS Titration Calorimeter
Temp. (K)
298.15
pH
7.8
Buffer
Buffer Substance (Tris, Tris(hydroxymethyl)amino-methane; Tricine; N-tris(hydroxymethyl)methylglycine; Hepes; N-2-hydroxylethylpiperazine-N-2-ethanesulphonic acid; pyrophosphate) 50.00 mM PEG 8000 0.10 % Sodium Chloride Rubidium Chloride 100.00 mM
Cell content
Protein
Reference
J Mol Biol. [2001] 313, 593-614