- Featured Product
- KD/KO Validated
CoraLite® Plus 488-conjugated STAT1 Monoclonal antibody
STAT1 Monoclonal Antibody for IF
Host / Isotype
Mouse / IgG2a
CoraLite® Plus 488 Fluorescent Dye
Cat no : CL488-66545
|Positive IF detected in
|IF : 1:50-1:500
|It is recommended that this reagent should be titrated in each testing system to obtain optimal results.
|Sample-dependent, check data in validation data gallery
CL488-66545 targets STAT1 in IF applications and shows reactivity with Human samples.
|Host / Isotype
|Mouse / IgG2a
|STAT1 fusion protein Ag0199
|signal transducer and activator of transcription 1, 91kDa
|Calculated molecular weight
|Observed molecular weight
|GenBank accession number
|Gene ID (NCBI)
|CoraLite® Plus 488 Fluorescent Dye
|Excitation/Emission maxima wavelengths
|493 nm / 522 nm
|Protein A purification
|PBS with 50% Glycerol, 0.05% Proclin300, 0.5% BSA, pH 7.3.
|Store at -20°C. Avoid exposure to light. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA.
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.