|Reactivity||Human, Mouse, Rat|
|Calculated MW||18243 Da|
|Other Names||Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1, Peptidyl-prolyl cis-trans isomerase Pin1, PPIase Pin1, Rotamase Pin1, PIN1|
|Target/Specificity||A synthetic peptide corresponding to residues near the N-terminus of human Pin1 was used as an immunogen.|
|Format||50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||Pin1 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Peptidyl-prolyl cis/trans isomerase (PPIase) that binds to and isomerizes specific phosphorylated Ser/Thr-Pro (pSer/Thr- Pro) motifs in a subset of proteins, resulting in conformational changes in the proteins (PubMed:21497122, PubMed:22033920). Displays a preference for an acidic residue N-terminal to the isomerized proline bond. Regulates mitosis presumably by interacting with NIMA and attenuating its mitosis-promoting activity. Down-regulates kinase activity of BTK (PubMed:16644721). Can transactivate multiple oncogenes and induce centrosome amplification, chromosome instability and cell transformation. Required for the efficient dephosphorylation and recycling of RAF1 after mitogen activation (PubMed:15664191). Binds and targets PML and BCL6 for degradation in a phosphorylation-dependent manner (PubMed:17828269). Acts as a regulator of JNK cascade by binding to phosphorylated FBXW7, disrupting FBXW7 dimerization and promoting FBXW7 autoubiquitination and degradation: degradation of FBXW7 leads to subsequent stabilization of JUN (PubMed:22608923).|
|Cellular Location||Nucleus. Nucleus speckle. Cytoplasm. Note=Colocalizes with NEK6 in the nucleus (PubMed:16476580). Mainly localized in the nucleus but phosphorylation at Ser-71 by DAPK1 results in inhibition of its nuclear localization (PubMed:21497122)|
|Tissue Location||The phosphorylated form at Ser-71 is expressed in normal breast tissue cells but not in breast cancer cells|
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Provided below are standard protocols that you may find useful for product applications.
Human human rotamase or peptidyl-prolyl cis-trans isomerase Pin1(PPIase) is important in protein folding, assembly and/or transport. Pin1 is nuclear PPIase containing a WW protein interaction domain, and is structurally and functionally related to Ess1/Ptf1, an essential protein in budding yeast. PPIase activity is necessary for Pin1 function in yeast. Depletion of Pin1 from yeast or HeLa cells induces mitotic arrest, whereas HeLa cells overexpressing Pin1 arrest in the G2 phase of the cell cycle. Pin1 is thus an essential PPIase that regulates mitosis presumably by interacting with NIMA and attenuating its mitosis-promoting activity (1). Pin1 is a conserved mitotic regulator essential for the G2/M transition of the eukaryotic cell cycle. Pin1 displays a preference for an acidic residue N-terminal to the isomerized proline bond due to interaction of this acidic side chain with a basic cluster. This raises the possibility of phosphorylation-mediated control of Pin1-substrate interactions in cell cycle regulation (2).
1. Lu KP, et al. Nature 380(6574):544-7, 1996
2. Ranganathan R, et al. Cell 89(6):875-86, 1997
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