Author: Sheren Younes, M.D. (see Authors page)

Revised: 9 May 2016, last major update May 2016

Copyright: (c) 2002-2016,, Inc.

PubMed Search: CAMTA1

Cite this page: CAMTA1. website. Accessed March 22nd, 2018.
Definition / general
  • Calmodulin binding transcription activator 1 (CAMTA1)
  • Putative tumor suppressor transcription activator
  • Interacts with calmodulin
  • Functions as calcium sensitive regulator of gene expression
Clinical features
Uses by pathologists
Microscopic (histologic) images

Images hosted on other servers:

Nuclear expression of CAMTA1



Positive stains
  • Staining localization:
    • Nuclear

  • Normal:
  • Disease:
    • Epithelioid hemangioendothelioma
    • 1 of 37 invasive ductal carcinomas showed CAMTA1 positivity
Negative stains
  • Negative in epithelial tumors of bile duct, breast (lobular), endometrium, kidney, liver, lung, ovary, prostate, stomach, thyroid
  • Negative in anaplastic large cell lymphoma, angiosarcoma, epithelioid hemangioma, GIST, melanoma, MPNST, myoepithelioma, PEComa, schwannoma, squamous cell carcinoma, synovial sarcoma, urothelial carcinoma