Human Leukocyte Antigens (HLA) A, B, C (Class I) Low/ Intermediate Genotyping


Human leukocyte antigens (HLAs) are cell surface molecules found on all nucleated cells. Two main classes of HLA antigens are recognised HLA class I and HLA class II. HLA class I antigens (A, B, and C in humans) render each cell recognisable as “self,” and are responsible for presenting peptides derived from intracellular pathogens such as viruses, whereas HLA class II antigens (DR, DP, and DQ in humans) stimulate the immune system by presenting peptides derived from exogenous sources. Both have been implicated in the rejection of transplanted organs. HLA typing can be performed serologically or genetically using PCR.


Sample Type, Quantity & Conditions

2 ml EDTA Room Temperature

Special Precautions

Collect in EDTA vacutainer tube. Avoid contamination with DNA of phlebotomist. Avoid haemolysed samples. Do not freeze samples. Send tube unopened.

Normal Range

By Report

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