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This biomarker is also known as:
  • guanine nucleotide-binding protein subunit beta-4,
  • guanine nucleotide binding protein (G protein), beta polypeptide 4,
  • guanine nucleotide binding protein beta subunit 4,
  • G protein beta-4 subunit,
  • transducin beta chain 4,
  • Transducin beta chain 4,

View in BioMuta


GNB4 is the beta subunit of a heterotrimeric guanine nucleotide-binding protein (G protein). These proteins also have alpha and gamma subunits. GNB4 and other beta subunits are important regulators of alpha subunits, as well as of certain signal transduction receptors and effectors. Each type of subunit is encoded by families of related genes.


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: Under Review


No additional breast data available.

Performance Comment

GNB4 was one of numerous potential early detection biomarkers specific to triple-negative breast cancer in multiple pathways identified.


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.

2015 EDRN PI Orientation

The New and Continuing EDRN Principal Investigator Orientation will take place January 20–21, 2016 in Bethesda, Maryland.

Announcement 08/26/2015

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 Wednesday-Thursday, January 20-21, 2016, on the NCI campus. More information will be available later this summer.

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.