Test ID: TPPTF
Tripeptidyl Peptidase 1 (TPP1) and Palmitoyl-Protein Thioesterase 1 (PPT1), Fibroblasts
Secondary ID 
A test code used for billing and in test definitions created prior to November 2011
89540
NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.
Conditional
Useful For Suggests clinical disorders or settings where the test may be helpful
Evaluation of patients with clinical presentations suggestive of neuronal ceroid lipofuscinoses (NCL)
An aid in the differential diagnosis of infantile and late infantile NCL
Additional Tests Lists test(s) that are always performed, at an additional charge, with the initial test(s)
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| FIBR | Fibroblast Culture | Yes | Yes |
| CRYOB | Cryopreserve for Biochem Studies | No | Yes |
Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.
When this test is ordered, a fibroblast culture and cryopreservation for biochemical studies will always be performed at an additional charge. However, for multiple lysosomal enzyme assays on a patient utilizing fibroblast culture, only 1 culture is required regardless of the number of enzyme assays ordered. If viable cells are not obtained within 10 days, client will be notified.
Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test
Method Name A short description of the method used to perform the test
TPPTF/89540: Fluorometric Enzyme Assay
FIBR/8482: Cultivated from Biopsy as Monolayer
CRYOB/88832: Fibroblast Subculture Followed by Cryopreservation and Storage
Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name
TPP1 and PPT1, Fibroblasts
Aliases Lists additional common names for a test, as an aid in searching
CLN1
CLN2
INCL
LINCL
NCL1
NCL2
Palmitoyl-Protein Thioesterase 1 (PPT1)
TPP1 (Tripeptidyl Peptidase 1)
NCL (Neuronal Ceroid Lipofuscinosis)
CLN2
INCL
LINCL
NCL1
NCL2
Palmitoyl-Protein Thioesterase 1 (PPT1)
TPP1 (Tripeptidyl Peptidase 1)
NCL (Neuronal Ceroid Lipofuscinosis)
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