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About This Item
NACRES:
NA.41
UNSPSC Code:
12352203
Conjugate:
unconjugated
Clone:
polyclonal
Application:
IHC (p)
Citations:
9
biological source
rabbit
conjugate
unconjugated
antibody form
Ig fraction of antiserum
antibody product type
primary antibodies
clone
polyclonal
description
For In Vitro Diagnostic Use in Select Regions (See Chart)
form
buffered aqueous solution
species reactivity
human
packaging
vial of 0.1 mL concentrate (338A-74), vial of 0.5 mL concentrate (338A-75), bottle of 1.0 mL predilute (338A-77), vial of 1.0 mL concentrate (338A-76), bottle of 7.0 mL predilute (338A-78)
manufacturer/tradename
Cell Marque®
technique(s)
immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:100-1:500
control
thymus
shipped in
wet ice
storage temp.
2-8°C
visualization
nuclear
Gene Information
human ... DNTT(1791)
General description
TdT (terminal deoxynucleotidyl transferase) is a template-independent DNA polymerasethat adds nucleotides randomly to single-stranded DNA. This randomization plays a role inacquired immunity by increasing antigen receptor diversity and aiding in the generation ofimmunoglobulins and T-cell antigen receptors. TdT immunoreactivity is observed mainly in the thymus. Anti-TdT is often used to visualize lymphoblastic lymphomas and has also beenobserved in some cases of acute myeloid leukemia.
Physical form
Solution in Tris Buffer, pH 7.3-7.7, with 1% BSA and <0.1% Sodium Azide
Preparation Note
Download the IFU specific to your product lot and formatNote: This requires a keycode which can be found on your packaging or product label.
Analysis Note
![]() IVD | ![]() IVD | ![]() IVD | ![]() RUO |
Other Notes
For Technical Service please contact: 800-665-7284 or email: service@cellmarque.com
TdT Positive Control Slides, Product No. 338S, are available for immunohistochemistry (formalin-fixed, paraffin-embedded sections).
Legal Information
Cell Marque is a registered trademark of Merck KGaA, Darmstadt, Germany
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Storage Class
12 - Non Combustible Liquids
wgk
WGK 2
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A Practical Approach to Diagnosis, 312-316 (1990)
A Orazi et al.
Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 7(5), 582-586 (1994-06-01)
Terminal deoxynucleotidyl transferase (TdT) represents a useful marker for the diagnosis of acute lymphoblastic leukemia and lymphoblastic lymphoma. It is usually assayed in fresh tissue or cell suspensions by enzyme analysis, immunofluorescence, or immunoperoxidase. We have obtained satisfactory staining for
M Ozdemirli et al.
Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 14(11), 1175-1182 (2001-11-14)
We encountered a child with an intraosseous small round cell tumor that was negative for LCA, CD20 (L26), and CD3 and positive for vimentin, CD99 (MIC-2), and periodic acid-Schiff. The tumor exhibited rosette-like formations. This case was initially interpreted as



