Product Pathways - Transcription Factors
PAX8 Antibody #9857
|W IP||H Mk (M) (R)||Endogenous||48||Rabbit|
Reactivity Key: H=Human M=Mouse R=Rat Mk=Monkey
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.
Specificity / Sensitivity
PAX8 Antibody recognizes endogenous levels of total PAX8 protein.
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human Pax8 protein. Antibodies are purified by protein A and peptide affinity chromatography.
Paired box (PAX) proteins are a family of transcription factors that play important and diverse roles in animal development (1). Nine PAX proteins (PAX1-9) have been described in humans and other mammals. They are defined by the presence of an amino-terminal "paired" domain, consisting of two helix-turn-helix motifs, with DNA binding activity (2). PAX proteins are classified into four structurally distinct subgroups (I-IV) based on the absence or presence of a carboxy-terminal homeodomain and a central octapeptide region. Subgroup I (PAX1 and 9) contains the octapeptide but lacks the homeodomain; subgroup II (PAX2, 5, and 8) contains the octapeptide and a truncated homeodomain; subgroup III (PAX3 and 7) contains the octapeptide and a complete homeodomain; and subgroup IV (PAX4 and 6) contains a complete homeodomain but lacks the octapeptide region (2). PAX proteins play critically important roles in development by regulating transcriptional networks responsible for embryonic patterning and organogenesis (3); a subset of PAX proteins also maintain functional importance during postnatal development (4). Research studies have implicated genetic mutations that result in aberrant expression of PAX genes in a number of cancer subtypes (1-3), with members of subgroups II and III identified as potential mediators of tumor progression (2).
PAX8 is involved in the development of thyroid follicular cells and the expression of thyroid-specific genes (5). Investigators have associated mutations in the PAX8 gene with thyroid dysgenesis, thyroid follicular carcinomas, and atypical follicular thyroid adenomas (6,7).
- Lang, D. et al. (2007) Biochem Pharmacol 73, 1-14.
- Robson, E.J. et al. (2006) Nat Rev Cancer 6, 52-62.
- Wang, Q. et al. (2008) J Cell Mol Med 12, 2281-94.
- Blake, J.A. et al. (2008) Dev Dyn 237, 2791-803.
- Kimura, S. (2011) J Thyroid Res 2011, 710213.
- Fagman, H. and Nilsson, M. (2011) J Mol Endocrinol 46, R33-42.
- Albarel, F. et al. (2012) Ann Endocrinol (Paris) , .
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For Research Use Only. Not For Use In Diagnostic Procedures.