General Information of This Linker
Linker ID
LIN0EPWON
Linker Name
Ala-Ala linker
Linker Type
Cathepsin-cleavable linker
Antibody-Linker Relation
Cleavable
Structure
Formula
C8H13BrN2O4
Isosmiles
OC([C@H](C)NC([C@H](C)NC(CBr)=O)=O)=O
InChI
InChI=1S/C8H13BrN2O4/c1-4(10-6(12)3-9)7(13)11-5(2)8(14)15/h4-5H,3H2,1-2H3,(H,10,12)(H,11,13)(H,14,15)/t4-,5-/m0/s1
InChIKey
LSVCWUKTQRTKEW-WHFBIAKZSA-N
Pharmaceutical Properties
Molecule Weight
281.106
Polar area
95.5
Complexity
244.7639251
xlogp Value
-0.5247
Heavy Count
15
Rot Bonds
5
Hbond acc
3
Hbond Donor
3
Each Antibody-drug Conjugate Related to This Linker
Full Information of The Activity Data of The ADC(s) Related to This Linker
38283215 ADC 1 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Effective Concentration (EC50)
0.92 ug/mL
High TNF expression (TNF +++)
Method Description
ADC1-ADC27 with a DAR value of ~4 were screened in a GRE luciferase reporter assay in K562 cells over expressing mTNF and wild-type K562 cells to assess potency resulting from targeted delivery vs. nonspecific uptake. All the ADCs were inactive in the wild-type cells, suggesting the activity seen in mTNF over expressed cells was through targeted ADC uptake followed by intracellular release of compound C1.

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In Vitro Model Blast phase chronic myelogenous leukemia, BCR-ABL1 positive, Chronic myeloid leukemia K562 cells (TNF) CVCL_0004
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Effective Concentration (EC50) > 50 ug/mL Negative TNF expression (TNF-)
Method Description
ADC1-ADC27 with a DAR value of ~4 were screened in a GRE luciferase reporter assay in K562 cells over expressing mTNF and wild-type K562 cells to assess potency resulting from targeted delivery vs. nonspecific uptake. All the ADCs were inactive in the wild-type cells, suggesting the activity seen in mTNF over expressed cells was through targeted ADC uptake followed by intracellular release of compound C1.

   Click to Show/Hide
In Vitro Model Blast phase chronic myelogenous leukemia, BCR-ABL1 positive, Chronic myeloid leukemia K562 cells (wt) CVCL_0004
References
Ref 1 Impact of dipeptide on ADC physicochemical properties and efficacy identifies Ala-Ala as the optimal dipeptide