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- KD/KO Validated
STAT1 Polyclonal Antibody for FC, IF, IHC, IP, WB, ELISA
Cat no : 10144-2-AP
ISGF 3, STAT1, STAT91
|Positive WB detected in||PC-3 cells, multi-cells|
|Positive IP detected in||PC-3 cells|
|Positive IHC detected in||human breast cancer tissue, human testis tissue|
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
|Positive IF detected in||PC-3 cells|
|Positive FC detected in||MCF-7 cells|
|Western Blot (WB)||WB : 1:500-1:1000|
|Immunoprecipitation (IP)||IP : 0.5-4.0 ug for IP and 1:500-1:1000 for WB|
|Immunohistochemistry (IHC)||IHC : 1:20-1:200|
|Immunofluorescence (IF)||IF : 1:50-1:500|
|Sample-dependent, check data in validation data gallery|
10144-2-AP targets STAT1 in WB, IP, IHC, IF, FC, ELISA applications and shows reactivity with human, rat samples.
|Cited Species||human, mouse, rat|
|Host / Isotype||Rabbit / IgG|
|Immunogen||STAT1 fusion protein Ag0199|
|Full Name||signal transducer and activator of transcription 1, 91kDa|
|Calculated molecular weight||83 kDa|
|Observed molecular weight||84 kDa|
|GenBank accession number||BC002704|
|Gene ID (NCBI)||6772|
|Purification Method||Antigen affinity purification|
|Storage Buffer||PBS with 0.1% sodium azide and 50% glycerol pH 7.3.|
|Storage Conditions||Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.|
What is the molecular weight of STAT1? Are there any isoforms of STAT1? Is STAT1 post-translationally modified?
The molecular weight of STAT1 is 91 kDa for full-length STAT1α and 84 kDa for STAT1β, which is devoid of the C-terminal activation domain (PMID: 1502203). Phosphorylation of STAT1 regulates STAT1 activity. Phosphorylation of Tyr701 by Janus kinases (JAKs) triggers STAT1 homo- and hetero-dimerization with other STAT family members and also causes nuclear translocation, while phosphorylation of Ser727 is needed for full activation (PMID: 10851062). STAT1β lacks Ser727 and has therefore been considered to be inactive or acting in a dominant negative manner to STAT1α, although it has been further shown to be capable of transcription activation in vivo (PMID: 24710278).
What is the subcellular localization of STAT1?
STAT1 is present in the cytoplasm and in the nucleus. Translocation of STAT1 from the cytoplasm to the nucleus is required for its regulation of gene expression and is dependent on phosphorylation (see above). However, low levels of unphosphorylated STAT1, often referred to as U-STAT1, can also be found in the nucleus, where U-STAT1 regulates the stability of heterochromatin by binding to chromatin in monomeric or dimeric states (PMID: 18840523).
What is the tissue expression pattern of STAT1?
STAT1 is ubiquitously expressed.
|Product Specific Protocols|
|WB protocol for STAT1 antibody 10144-2-AP||Download protocol|
|IHC protocol for STAT1 antibody 10144-2-AP||Download protocol|
|IF protocol for STAT1 antibody 10144-2-AP||Download protocol|
|IP protocol for STAT1 antibody 10144-2-AP||Download protocol|
|FC protocol for STAT1 antibody 10144-2-AP||Download protocol|
|Click here to view our Standard Protocols|
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