← Genes & pathways

Gene & pathway reference · FROM DR. PURSER’S TEACHING

KIT

KIT encodes a receptor tyrosine kinase that responds to stem cell factor. It participates in blood-cell development and mast-cell biology, making the exact variant and testing context especially important.

Based on teaching by Dan Purser, MD. How we prepare these guides

Updated Sep 23, 2026 · Educational reference

THE TEACHING CONNECTION

A growth receptor with a mast-cell connection

A growth receptor with a mast-cell connection

KIT encodes a receptor tyrosine kinase that responds to stem cell factor. It participates in blood-cell development and mast-cell biology, making the exact variant and testing context especially important.

Putting the pieces together

Dr. Purser includes KIT in his cell-development and mast-cell teaching. A common inherited marker, a pathogenic inherited variant and a mutation found in affected tissue can have very different meanings. Mast-cell symptoms alone do not establish a KIT-related disorder, and a concerning report deserves specialist interpretation.

A question to bring to your visit

Was this tested in inherited DNA or affected tissue, and what does the laboratory classify the variant as?

Variant lookup

These names can help you find an entry on your original genetic report. Seeing a name here does not tell you whether it affects your health or whether you need treatment.

Names you may see

Kit Proto-Oncogene