Recombinant Human Progesterone-induced-blocking factor 1 (PIBF1), Homo sapiens (Human), E.coli, N-terminal 10xHis-tagged and C-terminal Myc-tagged, 97.2kDa, purity >90% as determined by SDS-PAGE.

Recombinant Human Progesterone-induced-blocking factor 1 (PIBF1)

Recombinant Human Progesterone-induced-blocking factor 1 (PIBF1) — The secreted form is a mediator of progesterone that by acting on the phospholipase A2 enzyme interferes with arachidonic acid metabolism, induces a Th2 biased immune response, and by controlling d… Purity >90%.

SKU: BCRECP-001383 Category:
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Product Specifications

Product SkuBCRECP-001383
Product DescriptionRecombinant Human Progesterone-induced-blocking factor 1 (PIBF1) Protein is expressed from E.coli with N-terminal 10xHis-tagged and C-terminal Myc-tagged. It contains 1-757aa. [Accession | Q8WXW3].
Uniprot No.Q8WXW3
Gene NamesPIBF1
PurityGreater than 90% as determined by SDS-PAGE.
Expression SystemE.coli
Expression Region1-757aa
SpeciesHomo sapiens (Human)
Tag InfoN-terminal 10xHis-tagged and C-terminal Myc-tagged
Molecular weight97.2kDa
ActivityPlease contact us to obtain bioactivity data.
BufferIf the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose.
StorageStore at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Research AreasCell Biology

Function

The secreted form is a mediator of progesterone that by acting on the phospholipase A2 enzyme interferes with arachidonic acid metabolism, induces a Th2 biased immune response, and by controlling decidual natural killer cells (NK) activity exerts an anti-abortive effect. Increases the production of Th2-type cytokines by signaling via the JAK/STAT pathway. Activates STAT6 and inhibits STAT4 phosphorylation.

Biological Context

Subcellular Location: Secreted
Tissue Specificity: Expressed at highest levels in testis. Moderate expression is detected in spleen, thymus, prostate, ovary, small intestine, and colon. Expressed in the first trimester pregnancy decidua. 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. Overexpressed in solid tumors from stomach and uterus and in cells from ovary, cervical, breast, lymphoma and leukemia cancer
Disease Association: [May be associated with microcephaly] | Joubert syndrome 33 (JBTS33) : A form of Joubert syndrome, a disorder presenting with cerebellar ataxia, oculomotor apraxia, hypotonia, neonatal breathing abnormalities and psychomotor delay. Neuroradiologically, it is characterized by cerebellar vermian hypoplasia/aplasia, thickened and reoriented superior cerebellar peduncles, and an abnormally large interpeduncular fossa, giving the appearance of a molar tooth on transaxial slices (molar tooth sign). Additional variable features include retinal dystrophy, renal disease, liver fibrosis, and polydactyly. JBTS33 inheritance is autosomal recessive. [The disease is caused by variants affecting the gene represented in this entry]

Product Specifications

Recombinant Human Progesterone-induced-blocking factor 1 (PIBF1) is a recombinant protein from Homo sapiens (Human), expressed in E.coli, covering amino acids 1-757aa, with N-terminal 10xHis-tagged and C-terminal Myc-tagged tag, molecular weight 97.2kDa, purity Greater than 90% as determined by SDS-PAGE.. Suitable for ELISA and Western Blot applications.

SDS-PAGE: Single band at expected molecular weight confirming purity.

ELISA: Suitable as coating antigen or detection standard.

Western Blot: Compatible with standard Western Blot protocols.

Protein Interaction: Validated for SPR (Surface Plasmon Resonance) and BLI (Bio-Layer Interferometry) studies.

Shipping: Shipped at ambient temperature. Lyophilized protein is stable during transit.

Storage: Store lyophilized protein at -20°C to -80°C. Reconstituted protein should be aliquoted and stored at -80°C. Avoid repeated freeze-thaw cycles.

Shelf Life: 12 months from date of receipt when stored as recommended.

Shipping Time: Orders placed before 2 PM EST ship same day. International orders typically deliver within 5-10 business days.

Related products

Protein Biology

Function

The secreted form is a mediator of progesterone that by acting on the phospholipase A2 enzyme interferes with arachidonic acid metabolism, induces a Th2 biased immune response, and by controlling decidual natural killer cells (NK) activity exerts an anti-abortive effect (PubMed:12516630, PubMed:14634107, PubMed:3863495). Increases the production of Th2-type cytokines by signaling via the JAK/STAT pathway. Activates STAT6 and inhibits STAT4 phosphorylation. Signaling via a not identified receptor seems to implicate IL4R and a GPI-anchored protein (PubMed:16393965, PubMed:25218441)

Subcellular Location

Secreted

Disease Association

[May be associated with microcephaly] | Joubert syndrome 33 (JBTS33) : A form of Joubert syndrome, a disorder presenting with cerebellar ataxia, oculomotor apraxia, hypotonia, neonatal breathing abnormalities and psychomotor delay. Neuroradiologically, it is characterized by cerebellar vermian hypoplasia/aplasia, thickened and reoriented superior cerebellar peduncles, and an abnormally large interpeduncular fossa, giving the appearance of a molar tooth on transaxial slices (molar tooth sign). Additional variable features include retinal dystrophy, renal disease, liver fibrosis, and polydactyly. JBTS33 inheritance is autosomal recessive. [The disease is caused by variants affecting the gene represented in this entry]

Tissue Specificity

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). Overexpressed in solid tumors from stomach and uterus and in cells from ovary, cervical, breast, lymphoma and leukemia cancer (PubMed:25218441)

Subunit

Isoform 1 interacts with PCM1, BBS4 and CEP63 (PubMed:21224392, PubMed:23110211, PubMed:26297806). Interacts with IL4R (PubMed:25218441). Interacts with CFAP53 (PubMed:26538025)

Gene: PIBF1  |  Organism: Homo sapiens  |  Synonyms: Centrosomal protein of 90 kDa
Key Publications

Frequently Asked Questions

How do I order or inquire about this product?

Fill out the Online Inquiry form with your required quantity and specifications. You can also email sales@biocrestsci.com. Our team typically responds within 4 business hours with a quote and availability confirmation.

What is the shipping and delivery time?

Orders placed before 2 PM EST ship the same day. Domestic (US) delivery typically takes 2-3 business days. International orders deliver within 5-10 business days. All products are shipped at ambient temperature with appropriate packaging to ensure stability.

How should I store this recombinant protein?

Lyophilized proteins should be stored at -20°C to -80°C upon receipt. After reconstitution, aliquot and store at -80°C. Avoid repeated freeze-thaw cycles. Shelf life is 12 months from date of receipt when stored as recommended.

What quality controls are performed on your products?

Each product undergoes SDS-PAGE purity analysis (typically >85-95%), endotoxin testing, and bioactivity validation. Products are validated for ELISA, Western Blot, and SPR/BLI applications as specified on this product page. A Certificate of Analysis (CoA) is available upon request.

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