Human STAT5a Antibody

Catalog # Availability Size / Price Qty
MAB21741
MAB21741-SP

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Detection of STAT5a in Jurkat Human Cell Line by Flow Cytometry.
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Human STAT5a Antibody Summary

Species Reactivity
Human
Specificity
Detects human STAT5a. This antibody does not cross-react with STAT5b.
Source
Monoclonal Mouse IgG1 Clone # 251610
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Human STAT5a synthetic peptide
SLDSRLSPPAGLFTSARGSLS
Accession # NP_003143
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
CyTOF-ready
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
 
Immunocytochemistry
8-25 µg/mL
See below
Intracellular Staining by Flow Cytometry
0.25 µg/106 cells
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Examples

Intracellular Staining by Flow Cytometry Detection of STAT5a antibody in Jurkat Human Cell Line antibody by Flow Cytometry. View Larger

Detection of STAT5a in Jurkat Human Cell Line by Flow Cytometry. Jurkat human acute T cell leukemia cell line was stained with Mouse Anti-Human STAT5a Monoclonal Antibody (Catalog # MAB21741, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by Allophycocyanin-conjugated Anti-Mouse IgG F(ab')2Secondary Antibody (Catalog # F0101B). To facilitate intracellular staining, cells were fixed with paraformaldehyde and permeabilized with methanol.

Immunocytochemistry STAT5a antibody in K562 Human Cell Line by Immunocytochemistry (ICC). View Larger

STAT5a in K562 Human Cell Line. STAT5a was detected in immersion fixed K562 human chronic myelogenous leukemia cell line using Mouse Anti-Human STAT5a Monoclonal Antibody (Catalog # MAB21741) at 25 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: STAT5a

STAT5a (Signal Transducer and Activator of Transcription-5a) is one of two closely related genes that belong to the STAT family of transcription factors. It is a 91 kDa cytosolic protein that contains an N-terminal domain (with an NES/Nuclear Export Signal) a coiled-coiled region (with an NLS/Nuclear Localization Signal) a DNA-binding site that recognizes a GAS (Gamma-interferon Activated Site) motif, an SH2 domain that allows for dimerization, and a C-terminal transactivation domain. STAT5a likely exists in a quiescent state as a cytoplasmic anti-parallel homodimer. Following activation of both tyrosine and non-tyrosine kinase membrane-bound receptors, STAT5a is phosphorylated, increasing its MW by some 5-6 kDa. Phosphorylated STAT5a will enter the nucleus as either a homodimer (or heterodimer with STAT5b), or as a complex with the intracellular domain of a tyrosine kinase receptor such as ErbB4. Once in the nucleus, STAT5a will form a homotetramer and bind either GAS or GAS-related sequences in gene regulatory regions. Notably, it is suggested that STAT5a may "cycle" through the nucleus without phosphorylation, a process that would seem to involve Importins alpha 3 and beta 1. STAT5a is related to STAT5b through gene duplication. They show 92% amino acid (aa) sequence identity, with the major differences existing over aa 45-56 and 773-794. The genes are not entirely redundant; STAT5a activates NDGR1 and SH2, while STAT5b regulates the Treg T cell genes, FoxP3 and CD25/IL-2R alpha.

Long Name
Signal Transducer and Activator of Transcription 5
Entrez Gene IDs
6776 (Human); 20850 (Mouse)
Alternate Names
MGF; signal transducer and activator of transcription 5A; STAT5; STAT5a

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Isotype Controls

Reconstitution Buffers

Secondary Antibodies

Reviews for Human STAT5a Antibody

Average Rating: 3.5 (Based on 2 Reviews)

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Human STAT5a Antibody
By Anonymous on 01/03/2020
Application: Microarrays Sample Tested: EDTA Plasma Species: Human

Human STAT5a Antibody
By Anonymous on 02/21/2019
Application: MiAr Sample Tested: EDTA Plasma Species: Human