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This biomarker is also known as:
  • CD1a molecule,
  • R4,
  • CD1,
  • hTa1 thymocyte antigen,
  • HTA1,
  • epidermal dendritic cell marker CD1a,
  • cortical thymocyte antigen CD1A,
  • differentiation antigen CD1-alpha-3,
  • T-cell surface glycoprotein CD1a,
  • CD1a antigen,
  • T-cell surface antigen T6/Leu-6,
  • FCB6,
  • T6,
  • CD1A antigen, a polypeptide,
  • cluster of differentiation 1 A,

View in BioMuta


CD1A is a transmembrane glycoprotein that is structurally related to the major histocompatibility complex (MHC) proteins and forms heterodimers with beta-2-microglobulin. CD1A functions as an antigen-presenting protein that binds self and non-self lipid and glycolipid antigens and presents them to T-cell receptors on natural killer T-cells.


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

CD1A 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.

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.