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Zeta
PAX-8 Recombinant Rabbit Monoclonal Antibody (ZR1), RAbMono™
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Product Details
Z2202RS
Product Specifications
Species Reactivity
Human
Host/Isotype
Rabbit
/ IgG
Expression System
CHO cells
Class
Recombinant Monoclonal
Type
Antibody
Clone
ZR1
Immunogen
Synthetic peptide corresponding to the C-terminus of Human PAX8 protein
Conjugate
Form
Liquid
Concentration
500 µg/mL
Purification
Protein A
Storage buffer
tris with NP-40, BSA
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 Thyroid, 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.
PAX-8 is expressed in the thyroid, non-ciliated mucosal cells of the fallopian tubes and simple ovarian inclusion cysts, but not normal ovarian surface epithelial cells. PAX-8 is expressed in ovarian serous, endometrioid, and clear cell carcinomas, but only rarely in primary ovarian mucinous adenocarcinomas. Over 98% of clear cell RCCs, 90% of papillary RCCs, and 95% of oncocytomas were positive for PAX-8. Similarly, the absence of expression of PAX-8 in breast and other non-GYN carcinomas other than those primary to the thyroid indicates that PAX-8 is an important new marker of ovarian cancer and a useful marker for the differential diagnoses in lung and neck tumors, or tumors at distant sites where primary lung carcinoma or thyroid carcinoma are possibilities. PAX-8, combined with organ system-specific markers such as uroplakin, mammaglobin, and TTF-1 can be a very useful panel to determine the primary site of invasive micropapillary carcinomas of ovary from bladder, lung, and breast. Unlike the polyclonal anti-PAX-8 antibody, the ZR1 rabbit monoclonal antibody does not react with pancreatic neuroendocrine tumors, thymic tumors, and lymphocytes.
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
This gene encodes a member of the paired box family of transcription factors. Members of this gene family typically encode proteins that contain a paired box domain, an octapeptide, and a paired-type homeodomain. This nuclear protein is involved in thyroid follicular cell development and expression of thyroid-specific genes. Mutations in this gene have been associated with thyroid dysgenesis, thyroid follicular carcinomas and atypical follicular thyroid adenomas. Alternatively spliced transcript variants encoding different isoforms have been described.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: HGNC:8622; Paired box protein Pax-8; paired domain gene 8
Gene Aliases: PAX8
UniProt ID: (Human) Q06710
Entrez Gene ID: (Human) 7849
RNA polymerase II core promoter proximal region sequence-specific DNA binding
RNA polymerase II core promoter sequence-specific DNA binding
transcriptional activator activity, RNA polymerase II core promoter proximal region sequence-specific binding
DNA binding
transcription factor activity, sequence-specific DNA binding
thyroid-stimulating hormone receptor activity
protein binding
transcription regulatory region DNA binding
urogenital system development
branching involved in ureteric bud morphogenesis
kidney development
mesonephros development
mesenchymal to epithelial transition involved in metanephros morphogenesis
transcription, DNA-templated
transcription from RNA polymerase II promoter
sulfur compound metabolic process
central nervous system development
anatomical structure morphogenesis
thyroid gland development
thyroid-stimulating hormone signaling pathway
pronephric field specification
inner ear morphogenesis
regulation of apoptotic process
positive regulation of transcription, DNA-templated
positive regulation of transcription from RNA polymerase II promoter
pronephros development
cellular response to gonadotropin stimulus
otic vesicle development
positive regulation of mesenchymal to epithelial transition involved in metanephros morphogenesis
metanephric epithelium development
metanephric distal convoluted tubule development
metanephric comma-shaped body morphogenesis
metanephric S-shaped body morphogenesis
metanephric nephron tubule formation
negative regulation of mesenchymal cell apoptotic process involved in metanephric nephron morphogenesis
regulation of metanephric nephron tubule epithelial cell differentiation
positive regulation of branching involved in ureteric bud morphogenesis
negative regulation of mesenchymal cell apoptotic process involved in metanephros development
negative regulation of apoptotic process involved in metanephric collecting duct development
negative regulation of apoptotic process involved in metanephric nephron tubule development
positive regulation of metanephric DCT cell differentiation
positive regulation of thyroid hormone generation
regulation of thyroid-stimulating hormone secretion
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If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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