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Flow cytometric analysis of Islet-1 in Mouse pancreatic tumor (Insulinoma) cells. Cells from the Mouse Beta-TC-6 (Insulinoma, ATCC© CRL-3605™) cell line were fixed with BD Cytofix™ Fixation Buffer (Cat. No. 554655) and permeabilized with BD Phosflow™ Perm Buffer III (Cat. No. 558050). The cells were then stained with either Alexa Flour™ 647 Mouse IgG1, κ isotype control (Cat. No. 570232; dashed line histogram) or Alexa Flour™ 647 Mouse Anti-Islet-1 antibody (Cat. No. 570357/570427; solid line histogram) at 0.5 µg/test. The fluorescence histogram showing Islet-1 expression (or Ig Isotype control staining) was derived was from gated events with the forward and side light-scatter characteristics of intact cells. Flow cytometry and data analysis were performed using a BD FACSCanto™ II Flow Cytometry System and FlowJo™ Software. Data shown on this Technical Data Sheet are not lot specific.


BD Pharmingen™ Alexa Fluor™ 647 Mouse Anti-Islet-1

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Recommended Assay Procedures
BD® CompBeads can be used as surrogates to assess fluorescence spillover (compensation). When fluorochrome conjugated antibodies are bound to BD® CompBeads, they have spectral properties very similar to cells. However, for some fluorochromes there can be small differences in spectral emissions compared to cells, resulting in spillover values that differ when compared to biological controls. It is strongly recommended that when using a reagent for the first time, users compare the spillover on cell and BD® CompBeads to ensure that BD® CompBeads are appropriate for your specific cellular application.
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- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- Alexa Fluor® 647 fluorochrome emission is collected at the same instrument settings as for allophycocyanin (APC).
- Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
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Islet-1 is a LIM-homeodomain transcription factor important for motor neuron differentiation and the formation of islet cells in the pancreas. Various heart cell types, such as cardiac muscle, the conduction system and endothelial cells in multiple heart tissue compartments during cardiogenesis, have been found to originate from Islet-1-positive cardiac precursor cells. Moreover, Islet-1-positive cells from differentiated human embryonic stem cell lines were found to be capable of self-renewal and expansion and could differentiate into the three major cell types of the heart.
Western blot analyses of lysates from transfected cells demonstrate that the Q11-465 monoclonal antibody reacts with human Islet-1 (ISL-1, ISL1) and Islet-2 (ISL-2, ISL2), similar to the 4D5 clone (Tsuchida et al, 1994). Cross-reactivity with mouse Islet is also observed.
Development References (7)
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Bu L, Jiang X, Martin-Puig S, et al. Human ISL1 heart progenitors generate diverse multipotent cardiovascular cell lineages. Nature. 2009; 460(7251):113-117. (Biology). View Reference
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Ebert AD, Yu J, Rose FF Jr, et al. Induced pluripotent stem cells from a spinal muscular atrophy patient. Nature. 2009; 457(7227):277-280. (Biology). View Reference
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Emre N, Vidal JG, Elia J, et al. The ROCK inhibitor Y-27632 improves recovery of human embryonic stem cells after fluorescence-activated cell sorting with multiple cell surface markers. PLoS ONE. 2010; 5(8):e12148. (Methodology: Cell differentiation). View Reference
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Laugwitz KL, Moretti A, Caron L, Nakano A, Chien KR. Islet1 cardiovascular progenitors: a single source for heart lineages. Development. 2008; 135(2):193-205. (Biology). View Reference
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Osumi N, Hirota A, Ohuchi H, et al. Pax-6 is involved in the specification of hindbrain motor neuron subtype. Development. 1997; 124(15):2961-2972. (Biology). View Reference
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Tsuchida T, Ensini M, Morton SB, et al. Topographic organization of embryonic motor neurons defined by expression of LIM homeobox genes. Cell. 1994; 79(6):957-970. (Biology). View Reference
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Xu C, Police S, Hassanipour M, et al. Efficient generation and cryopreservation of cardiomyocytes derived from human embryonic stem cells. 2011; 6(1):53-66. (Biology). View Reference
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Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims. Comparisons are not made against non-BD technologies, unless otherwise noted.
For Research Use Only. Not for use in diagnostic or therapeutic procedures.