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Zeta
ALK-1 Recombinant Rabbit Monoclonal Antibody (ZR305), RAbMono™
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Product Details
Z2534RS
Product Specifications
Species Reactivity
Human
Host/Isotype
Rabbit
/ IgG
Expression System
CHO cells
Class
Recombinant Monoclonal
Type
Antibody
Clone
ZR305
Immunogen
Human ALK protein fragment around aa 1058-1620
Conjugate
Form
Liquid
Concentration
100 µg/mL
Purification
Protein A
Storage buffer
tris with BSA, NP-40
Contains
<0.1% sodium azide
Storage conditions
4°C
Shipping conditions
Ambient (domestic); Wet ice (international)
Product Specific Information
A recommended positive control tissue for this product is Lung Cancer with ALK+, however positive controls are not limited to this tissue type.
The primary antibody is intended for laboratory professional use in the detection of the corresponding protein in formalin-fixed, paraffin-embedded tissue stained in manual qualitative immunohistochemistry (IHC) testing. This antibody is intended to be used after the primary diagnosis of tumor has been made by conventional histopathology using non-immunological histochemical stains.
Anaplastic lymphoma kinase (ALK) is a receptor tyrosine kinase of the insulin receptor superfamily. ALK is typically expressed at low levels in regions of the developing central and peripheral nervous system. ALK may be activated in cancer through multiple mechanisms. The most common mechanism is through formation of a fusion protein from chromosomal translocations, as in the case of anaplastic large cell lymphoma (ALCL) and inflammatory myo-fibroblastic tumors. ALK may also be amplified through mutation, as in neuroblastomas. Various solid tumors, such as non-small cell lung carcinoma (NSCLC) and brain cancers were also found to aberrantly express ALK. ALK staining is present within both the nucleus and cytoplasm and are positive in about 60% of ALCL. ALK protein expression by tumor cells is an independent prognostic factor that predicts a favorable outcome.
Antibody is used with formalin-fixed and paraffin-embedded sections. Pretreatment of deparaffinized tissue with heat-induced epitope retrieval or enzymatic retrieval is recommended. In general, immunohistochemical (IHC) staining techniques allow for the visualization of antigens via the sequential application of a specific antibody to the antigen (primary antibody), a secondary antibody to the primary antibody (link antibody), an enzyme complex and a chromogenic substrate with interposed washing steps. The enzymatic activation of the chromogen results in a visible reaction product at the antigen site. Results are interpreted using a light microscope and aid in the differential diagnosis of pathophysiological processes, which may or may not be associated with a particular antigen.
A positive tissue control must be run with every staining procedure performed. This tissue may contain both positive and negative staining cells or tissue components and serve as both the positive and negative control tissue. External Positive control materials should be fresh autopsy/biopsy/surgical specimens fixed, processed and embedded as soon as possible in the same manner as the patient sample (s). Positive tissue controls are indicative of correctly prepared tissues and proper staining methods. The tissues used for the external positive control materials should be selected from the patient specimens with well-characterized low levels of the positive target activity that gives weak positive staining. The low level of positivity for external positive controls is designed to ensure detection of subtle changes in the primary antibody sensitivity from instability or problems with the staining methodology. A tissue with weak positive staining is more suitable for optimal quality control and for detecting minor levels of reagent degradation.
Internal or external negative control tissue may be used depending on the guidelines and policies that govern the organization to which the end user belongs to. The variety of cell types present in many tissue sections offers internal negative control sites, but this should be verified by the user. The components that do not stain should demonstrate the absence of specific staining, and provide an indication of non-specific background staining. If specific staining occurs in the negative tissue control sites, results with the patient specimens must be considered invalid.
Target Information
Anaplastic Lymphoma Receptor Tyrosine Kinase (ALK) belongs to the insulin receptor superfamily. It is vital for brain development. Mutations, rearrangements, and amplifications in the ALK gene have been found in tumors, including anaplastic large cell lymphoma, neurblastoma, and non-small cell lung cancer. Chromosomal rearrangement is the most common genetic alteration. The translocation creates a fusion gene consisting of the ALK gene and the nucleophosmin gene: the 3' half of ALK, derived from chromosome 2, is fused to the 5' portion of NPM from chromosome 5. A recent study shows that the product of the NPM-ALK fusion gene is oncogenic. The deduced amino acid sequences reveal that ALK is a novel receptor protein-tyrosine kinase having a putative transmembrane domain and an extracellular domain. These sequences are absent in the product of the transforming NPM-ALK gene. ALK shows the greatest sequence similarity to LTK. ALK plays an important role in the development of the brain and exerts its effects on specific neurons in the nervous system.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: ALK tyrosine kinase receptor; ALK/NPM1 fusion gene; Anaplastic lymphoma kinase; Anaplastic lymphoma kinase Ki1; Anaplastic Lymphoma Kinase p80; CD246; CD246 antigen; EC 2.7.10.1; kinase ALK; mutant anaplastic lymphoma kinase; npm-alk; p80; TFG/ALK
Gene Aliases: ALK; CD246; NBLST3
UniProt ID: (Human) Q9UM73
Entrez Gene ID: (Human) 238
activation of MAPK activity
signal transduction
transmembrane receptor protein tyrosine kinase signaling pathway
cell proliferation
phosphorylation
peptidyl-tyrosine phosphorylation
NIK/NF-kappaB signaling
regulation of apoptotic process
protein autophosphorylation
neuron development
positive regulation of NF-kappaB transcription factor activity
Performance Guarantee
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