|Application ||WB, IHC-P, IF, E|
|Other Accession||NP_006337, 5576958|
|Reactivity||Human, Mouse, Rat|
|Calculated MW||83 kDa|
|Application Notes||PIBF1 antibody can be used for detection of PIBF1 by Western blot at 1 - 2 µg/mL.|
|Target/Specificity||PIBF1; Multiple isoforms of PIBF1 exists as a result of alternative splicing event.|
|Reconstitution & Storage||PIBF1 antibody can be stored at 4℃ for three months and -20℃, stable for up to one year.|
|Precautions||PIBF1 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Plays a role in ciliogenesis.|
|Cellular Location||Cytoplasm, cytoskeleton, microtubule organizing center, centrosome Cytoplasm. Secreted. Note=In progesterone-treated astrocytoma cells a 57 kDa protein and isoform 1 (90 kDa) have been described, both being located in the intracellular medium and secreted. Respective predominant forms are isoform 1 in the intracellular and the 57 kDa protein in the extracellular medium (PubMed:25218441). Isoform 4: Secreted Note=Secreted by progesterone-treated lymphocytes (PubMed:14634107).|
|Tissue Location||Expressed at highest levels in testis. Moderate expression is detected in spleen, thymus, prostate, ovary, small intestine, and colon (PubMed:11935316). Expressed in the first trimester pregnancy decidua (PubMed:12516630). Localized to extravillous cytotrophoblast (at protein level). Also found in syncytiotrophoblast and part of the villous cytotrophoblast Isoform 1 is expressed in first trimester and term villous trophoblast; trophoblast cells can additionally express other isoforms (PubMed:18817979). Overexpresed in solid tumors from stomach and uterus and in cells from ovary, cervical, breast, lymphoma and leukemia cancer (PubMed:25218441)|
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Provided below are standard protocols that you may find useful for product applications.
PIBF1 Antibody: PIBF1 is synthesized during pregnancy in response to progesterone by T lymphocytes. PIBF1 inhibits arachidonic acid release, controls NK activity, and modifies the cytokine balance exerting an anti-abortive effect. It contains a leucine zipper motif, a basic zipper sequence, a PEST sequence, a nuclear localization signal, an ER membrane retention signal and N-glycosylation and phosphorylation sites. PIBF1 is significantly higher in healthy pregnant women than in women at risk for premature pregnancy termination. Full-length PIBF1 is associated with the nucleus and functions as a transcription factor, whereas secretion of shorter forms which may act as cytokines is induced by activation of the cell.
Laskarin G, Tokmadzic VS, Strbo N, et al. Progesterone induced blocking factor (PIBF) mediates progesterone induced suppression of decidual lymphocyte cytotoxicity. Am. J. Reprod. Immunol. 2002; 48:201-9.
Lachmann M, Gelbmann D, Kalman E, et al. PIBF (progesterone induced blocking factor) is overexpressed in highly proliferating cells and associated with the centrosome. Int. J. Cancer. 2004; 112:51-60
Polgar B, Kispal G, Lachmann M, et al. Molecular cloning and immunologic characterization of a novel cDNA coding for progesterone-induced blocking factor. J. Immunol. 2003; 171:5956-63.
Raghupathy R, Al-Mutawa E, Al-Azemi M, et al. Progesterone-induced blocking factor (PIBF) modulates cytokine production by lymphocytes from women with recurrent miscarriage or preterm delivery. J. Reprod. Immunol. 2009; 80:91-9.
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