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STAT1 cell lysate

Human STAT1 Baculovirus-Insect cells Overexpression Lysate

Gene Names
STAT1; CANDF7; ISGF-3; STAT91
Applications
Western Blot
Synonyms
STAT1; Human STAT1 Baculovirus-Insect cells Overexpression Lysate; Human STAT1/p91 Insect Cell Lysate (WB positive control); signal transducer and activator of transcription 1; 91kDa; Human CANDF7 Overexpression Lysate; Human IMD31A Overexpression Lysate; Human IMD31B Overexpression Lysate; Human IMD31C Overexpression Lysate; Human ISGF-3 Overexpression Lysate; Human STAT91 Overexpression Lysate; STAT1 cell lysate
Ordering
For Research Use Only!
Host
Baculovirus-Insect cells
Form/Format
1x Sample Buffer (1x modified RIPA buffer+1x SDS loading buffer).
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Sequence Positions
950aa
Sequence
Met1-Val712
Applicable Applications for STAT1 cell lysate
Western Blot (WB)
Application Notes
WB: Use at an assay dependent dilution.
Species
Human
Recommend Usage
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.2. Re-dissolve the pellet using 200uL pure water and boil for 2-5 min.
Sequence Construction
A DNA sequence encoding the human STAT1 isoform beta (P42224-2) (Met 1-Val 712) was fused with the N-terminal polyhistidine-tagged GST tag at the N-terminus.
Preparation Method
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors. Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Preparation and Storage
Store at 4 degree C for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80 degree C for up to twelve months. Avoid repeated freeze-thaw cycles.
Samples are stable for up to twelve months from date of receipt.
Related Product Information for STAT1 cell lysate
STAT1 is a member of the STAT protein family. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor-associated kinases, and then form homo-or heterodimers that translocate to the cell nucleus where they act as transcription activators. STAT1 can be activated by various ligands, including interferon-alpha, interferon-gamma, EGF, PDGF and IL6. It is a signal transducer and transcription activator that mediates cellular responses to interferons (IFNs), cytokine KITLG/SCF and other cytokines and growth factors. The phosphorylated STATs dimerize, associate with ISGF3G/IRF-9 to form a complex termed ISGF3 transcription factor, that enters the nucleus. ISGF3 binds to the IFN stimulated response element (ISRE) to activate the transcription of interferon-stimulated genes, which drive the cell in an antiviral state. In response to type II IFN (IFN-gamma), STAT1 is tyrosine-and serine-phosphorylated. It then forms a homodimer termed IFN-gamma-activated factor (GAF), migrates into the nucleus and binds to the IFN gamma activated sequence (GAS) to drive the expression of the target genes, inducing a cellular antiviral state. STAT1 becomes activated in response to KITLG/SCF and KIT signaling and may mediate cellular responses to activated FGFR1, FGFR2, FGFR3 and FGFR4. Defects in STAT1 can cause STAT1 deficiency complete and familial candidiasis type 7.

This Human STAT1 overexpression lysate was created in Baculovirus-Insect cells and intented for use as a Western blot (WB) positive control. Purification of STAT1 protein from the overexpression lysate was verified.
Product Categories/Family for STAT1 cell lysate
References
Shah S, et al. (2011) A novel disrupter of telomere silencing 1-like (DOT1L) interaction is required for signal transducer and activator of transcription 1 (STAT1)-activated gene expression. J Biol Chem. 286(48):41195-204.Barthson J, et al. (2011) Cytokines tumor necrosis factor-and interferon-gamma induce pancreatic beta-cell apoptosis through STAT1-mediated Bim protein activation. J Biol Chem. 286(45):39632-43.Xin Z, et al. (2011) PCBP2 enhances the antiviral activity of IFN-against HCV by stabilizing the mRNA of STAT1 and STAT2. PLoS One. 6(10):e25419.Perwitasari O, et al. (2011) Inhibitor of B kinase epsilon (IKK(epsilon)), STAT1, and IFIT2 proteins define novel innate immune effector pathway against West Nile virus infection. J Biol Chem. 286(52):44412-23.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
Molecular Weight
87,335 Da
NCBI Official Full Name
signal transducer and activator of transcription 1-alpha/beta isoform alpha
NCBI Official Synonym Full Names
signal transducer and activator of transcription 1, 91kDa
NCBI Official Symbol
STAT1
NCBI Official Synonym Symbols
CANDF7; ISGF-3; STAT91
NCBI Protein Information
signal transducer and activator of transcription 1-alpha/beta; transcription factor ISGF-3 components p91/p84; signal transducer and activator of transcription-1
UniProt Protein Name
Signal transducer and activator of transcription 1-alpha/beta
UniProt Gene Name
STAT1
UniProt Entry Name
STAT1_HUMAN

NCBI Description

The protein encoded by this gene is a member of the STAT protein family. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor associated kinases, and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. This protein can be activated by various ligands including interferon-alpha, interferon-gamma, EGF, PDGF and IL6. This protein mediates the expression of a variety of genes, which is thought to be important for cell viability in response to different cell stimuli and pathogens. Two alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2008]

Uniprot Description

STAT1: transcription factor of the STAT family. Phosphorylated and activated by receptor-associated kinases downstream of certain receptor tyrosine kinases, GPCRs, and receptors for various interleukins and interferons. Forms homo- or heterodimers that translocate into the nucleus where they regulate transcription. Two alternatively spliced isoforms have been described.

Protein type: DNA-binding; Transcription factor

Chromosomal Location of Human Ortholog: 2q32.2

Cellular Component: nucleoplasm; axon; nuclear chromatin; cytoplasm; dendrite; nucleolus; cytosol; nucleus

Molecular Function: identical protein binding; signal transducer activity; protein binding; protein homodimerization activity; enzyme binding; double-stranded DNA binding; transcription factor activity; tumor necrosis factor receptor binding; CCR5 chemokine receptor binding

Biological Process: transcription from RNA polymerase II promoter; response to peptide hormone stimulus; response to cAMP; viral reproduction; blood circulation; apoptosis; positive regulation of transcription, DNA-dependent; positive regulation of smooth muscle cell proliferation; negative regulation of transcription from RNA polymerase II promoter; regulation of apoptosis; response to exogenous dsRNA; tumor necrosis factor-mediated signaling pathway; positive regulation of mesenchymal cell proliferation; negative regulation of viral protein levels in host cell; lipopolysaccharide-mediated signaling pathway; defense response to virus; response to nutrient; response to drug; cytokine and chemokine mediated signaling pathway; negative regulation of I-kappaB kinase/NF-kappaB cascade; JAK-STAT cascade; regulation of transcription from RNA polymerase II promoter; negative regulation of angiogenesis; response to hydrogen peroxide; cellular response to insulin stimulus; response to mechanical stimulus; response to cytokine stimulus; negative regulation of endothelial cell proliferation; endothelial cell migration; positive regulation of transcription from RNA polymerase II promoter

Disease: Immunodeficiency 31a; Immunodeficiency 31b; Immunodeficiency 31c

Research Articles on STAT1

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Product Notes

The STAT1 stat1 (Catalog #AAA8114988) is a Cell Lysate produced from Baculovirus-Insect cells and is intended for research purposes only. The product is available for immediate purchase. The immunogen sequence is 950aa. AAA Biotech's STAT1 can be used in a range of immunoassay formats including, but not limited to, Western Blot (WB). WB: Use at an assay dependent dilution. Researchers should empirically determine the suitability of the STAT1 stat1 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. The amino acid sequence is listed below: Met1-Val71 2. It is sometimes possible for the material contained within the vial of "STAT1, Cell Lysate" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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