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H3K27me3
- Immunohistochemistry (IHC)
H3K27me3 (trimethylation at lysine 27 of histone H3) is involved in the modification of DNA by protein Histone H3. Complete loss of H3K27me3 expression by immunohistochemistry can be useful in the diagnosis of malignant peripheral nerve sheath tumors (MPNST).
Clone: C36B11
Staining pattern: Nuclear
Turnaround time
1 Day
Level of Service
- Technical Only
New York Approved: Yes
Specimen Requirements
A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen type or one (1) unbaked, unstained slide for H&E staining (required) and two to three (2-3) positively charged unstained slides (all cut at 4-5 microns) for each test/antibody ordered. Note: Block and slide identifiers should be clearly written and match exactly with the specimen ID and specimen labeling as noted on the requisition.
Storage and Transportation
Storage & Transportation: Use cold pack for transport, making sure cold pack is not in direct contact with specimen. NYS clients please provide date and time of Collection.
CPT Code(s)*
88342x1 or 88341x1
*The CPT codes provided with our test descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.
Last Updated: January 22, 2025