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十大网赌网站注册app网>网赌最佳平台网址app>>生物试剂进口>BD 556547 AnnexinV-FITC/PI细胞凋亡双染试剂盒 100T 有现货

BD 556547 AnnexinV-FITC/PI细胞凋亡双染试剂盒 100T 有现货

BD 556547 AnnexinV-FITC/PI细胞凋亡双染试剂盒 100T 有现货
BD 556547 AnnexinV-FITC/PI细胞凋亡双染试剂盒 100T 有现货

BD 556547 AnnexinV-FITC/PI细胞凋亡双染试剂盒 100T 有现货
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BD 556547 AnnexinV-FITC/PI细胞凋亡双染试剂盒 100T

有现货

 

 

Brand BD Pharmingen™ Application Flow cytometry (Routinely Tested)  Regulatory Status RUO

BD 556547 AnnexinV-FITC/PI细胞凋亡双染试剂盒 100T 有现货

 

 

 

 

DESCRIPTION

 

 

Apoptosis is a normal physiologic process which occurs during embryonic development as well as in maintenence of tissue homeostasis. The apoptotic program is characterized by certain morphologic features, including loss of plasma membrane asymmetry and attachment, condensation of the cytoplasm and nucleus, and internucleosomal cleavage of DNA. Loss of plasma membrane is one of the earliest features. In apoptotic cells, the membrane phospholipid phosphatidylserine (PS) is translocated from the inner to the outer leaflet of the plasma membrane, thereby exposing PS to the external cellular environment. Annexin V is a 35-36 kDa Ca2+ dependent phospholipid-binding protein that has a high affinity for PS, and binds to cells with exposed PS. Annexin V may be conjugated to fluorochromes including FITC. This format retains its high affinity for PS and thus serves as a sensitive probe for flow cytometric analysis of cells that are undergoing apoptosis. Since externalization of PS occurs in the earlier stages of apoptosis, FITC Annexin V staining can identify apoptosis at an earlier stage than assays based on nuclear changes such as DNA fragmentation.

 

FITC Annexin V staining precedes the loss of membrane integrity which accompanies the latest stages of cell death resulting from either apoptotic or necrotic processes. Therefore, staining with FITC Annexin V is typically used in conjunction with a vital dye such as propidium iodide (PI) or 7-Amino-Actinomycin (7-AAD) to allow the investigator to identify early apoptotic cells (PI negative, FITC Annexin V positive). Viable cells with intact membranes exclude PI, wheras the membranes of dead and damaged cells are permeable to PI. For example, cells that are considered viable are FITC Annexin V and PI negative; cells that are in early apoptosis are FITC Annexin V positive and PI negative; and cells that are in late apoptosis or already dead are are both FITC Annexin V and PI positive. This assay does not distinguish between cells that have undergone apoptotic death versus those that have died as a result of a necrotic pathway because in either case, the dead cells will stain with both FITC Annexin V and PI. However, when apoptosis is measured over time, cells can be often tracked from FITC Annexin V and PI negative (viable, or no measurable apoptosis), to FITC Annexin V positive and PI negative (early apoptosis, membrane integrity is present) and finally to FITC Annexin V and PI positive (end stage apoptosis and death). The movement of cells through these three stages suggests apoptosis. In contrast, a single observation indicating that cells are both FITC Annexin V and PI positive, in of itself, reveals less information about the process by which the cells underwent their demise.

 

 

COMPONENTS

Part No.DescriptionSize
51-66121E10X Annexin V Binding Buffer50 mL (1 ea)
51-66211EPropidium Iodide Staining Solution2 mL (1 ea)
51-65874XFITC Annexin V0.5 mL (1 ea)

RESOURCES & TOOLS

  • Download MSDS
  • Download TDS

PREPARATION AND STORAGE

Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

PRODUCT NOTICES

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. Source of all serum proteins is from USDA inspected abattoirs located in the United States.
  3. 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.
  4. Please refer to www.bdbiosciences。。com/pharmingen/protocols for technical protocols.

BD 556547 AnnexinV-FITC/PI细胞凋亡双染试剂盒 100T 有现货 

产品相关关键字: BD556547 BD细胞凋亡染色试剂盒 BD细胞凋亡试剂盒 BD FITC试剂盒

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