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Immunology Laboratory

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DPPX Antibodies

Dipeptidyl-Peptidase–Like Protein-6 (DPPX) is a subunit of the KV2 potassium channel.

Antibodies to this protein have been shown in patients with an encephalitis picture plus severe diarrhoea and weight loss that can precede the encephalitis.

This antibody can be found in both adult and childhood onset encephalitis.

Boronat et al ANN NEUROL 2013;73:120–128 DOI: 10.1002/ana.23756.

Sample requirements

1ml serum (serum preferred but CSF acceptable)



Laboratory turnaround time

14 days

Laboratory method

  • Fixed Cell based assay
  • Immunofluorescence Microscopy

Reference range/units

Not applicable

Associated tests

Not applicable

Sample stability

4 months at 2-8ºC

Shipping and storage

UK and Ireland

Ambient temperature and first class post. Hays DX users please enquire via email below.


Ambient temperature if courier will deliver within 72 hours otherwise consider refrigerated transport. Freezing is not a requirement.

Ensure delivery Monday to Friday 7.00am - 5.30pm.

Further information and contact details

For further information, email

Last reviewed:12 September 2022