Target intelligence / Profile preview

KIT Proto-Oncogene Receptor Tyrosine Kinase D816 Isoforms (KIT D816V/D816Y)

Target
KIT D816V/D816Y
Molecular classification
Receptor Tyrosine Kinase
01

Overview

KIT D816 isoforms are receptor tyrosine kinase mutants, most commonly D816V and D816Y, characterized by constitutive ligand-independent kinase activity. These mutations occur within the activation loop, leading to uncontrolled downstream signaling that promotes cell proliferation and survival, and are implicated in several hematologic malignancies, notably systemic mastocytosis and AML. The presence of these mutations guides diagnosis and informs therapeutic decisions due to implications for drug resistance.

Other names
c-KIT D816V/D816YCD117 D816V/D816YKIT D816 mutants
02

Mechanism of action

Tyrosine kinase inhibition (some TKIs)

03

Biological functions

Cell proliferationCell survivalCell differentiationSignal transduction
04

Disease associations

Systemic MastocytosisAcute Myeloid Leukemia (AML)Germ Cell TumorsGastrointestinal Stromal Tumors (GISTs)Mucosal Melanoma
05

Safety considerations

Resistance to some tyrosine kinase inhibitors (e.g., imatinib)Need for alternative therapies targeting mutant forms
06

Interacting drugs

Imatinib Mesylate
07

Biomarkers

KIT D816VKIT D816Y

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