Lysosome-associated membrane glycoprotein 2 (CD107a) concentration in serum/plasma
This test measures a protein found in lysosomes, which are small organelles involved in breaking down waste materials in cells. It may be used to assess immune cell activity or inflammation.
["This test helps evaluate immune responses and potential inflammation but isn’t routinely ordered for most health checks."]
Key facts at a glance
- LOINC
- 27186-6
- Short code
- Lysozyme Stl Ql
- Synonyms
- Lysozyme Stl Ql
- Category
- chemistry
- Sample
- stool
- Container
- Clean container
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 5 g
- Stability
- Refrigerated: 24h, Frozen: 7d
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your doctor may recommend this test if you have symptoms or conditions linked to immune system dysfunction, such as certain cancers (e.g., lymphoma), autoimmune diseases, or infections. It can also be part of research studies or specialized diagnostic workups.
What to Expect Before the Test
No special preparation is needed. A blood sample will be drawn from a vein, typically in your arm. You may feel a slight pinch, but it usually takes only a few minutes. Avoid strenuous activity or fasting unless instructed by your doctor.
What the Results Mean
Results are interpreted by your healthcare provider based on your medical history, symptoms, and other test results. Elevated levels might suggest increased immune cell activity, while very low levels could indicate immune suppression or lysosomal dysfunction.
Common Conditions Monitored
This test isn’t widely used in routine care but may be part of investigations for conditions like chronic inflammation, certain cancers, or immune-related disorders. It’s often reserved for specialized clinical scenarios.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical significance: This protein is associated with activated immune cells (e.g., mast cells, natural killer cells) and can reflect inflammatory or immune-mediated processes. Abnormal levels may indicate underlying pathology requiring further evaluation, such as malignancies or autoimmune diseases.
Short name
Lysosomal marker protein
Frequently asked questions
Is this test covered by insurance?
How long will I need to wait for results?
Can I fast before this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy