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This biomarker is also known as:
  • Atypical protein kinase C-lambda/iota,
  • nPKC-iota,
  • protein kinase C, iota,
  • aPKC-lambda/iota,
  • protein kinase C iota type,
  • atypical protein kinase C-lambda/iota,
  • EC,
  • PKCI,
  • DXS1179E,
  • PRKC-lambda/iota,

View in BioMuta


PRKCI is a member of the protein kinase C (PKC) family of serine/threonine protein kinases. It is a calcium- and diacylglycerol-independent serine/threonine-protein kinase that plays a general protective role against apoptotic stimuli, is involved in NF-kappa-B activation, cell survival, differentiation and polarity, and contributes to the regulation of microtubule dynamics in the early secretory pathway. Is necessary for BCR-ABL oncogene-mediated resistance to apoptotic drug in leukemia cells, protecting leukemia cells against drug-induced apoptosis.


QA State: Curated
Type: Protein
Short Name:


There are no datasets associated with this biomarker.


The following organs have data associated with this biomarker…



Phase: Two
QA State: Curated


PRKCI has not been identified previously in serum as a lung cancer biomarker and represents a novel finding in the aptamer proteomic technology study (Ostroff et al, 2010). PRKCI was observed up-regulated in lung cancer in this study.

Performance Comment

PRKCI is a member of a 12 protein panel that can discriminate NSCLC from controls with 91% sensitivity and 84% specificity in cross-validated training and 89% sensitivity and 83% specificity in a separate verification set, with similar performance for early and late stage NSCLC.


This biomarker is currently being annotated or is under review. You must be logged in or do not have permission to view any additional information. Contact Heather Kincaid at if you should have access to this biomarker.

2016 EDRN PI Orientation

The New and Continuing EDRN Principal Investigator Orientation will take place March 14–15, 2016 in Bethesda, Maryland.

Announcement 11/05/2015

Thank you to everyone who made the 29th EDRN Steering Committee Meeting a success. The orientation for new and continuing EDRN PIs will be held Monday-Tuesday, March 14-15, 2016, on the NCI campus. More information will be available later this autumn.

Announcement 06/30/2015

A funding opportunity for a new pancreatic cancer initiative, called The Pancreatic Cancer Detection Consortium (U01), has been released. For more information, please go to /grants/guide/ pa-files/ PAR-15-289.html.