Flow Cytometry (FACS), Western Blotting (WB), Functional Studies (Func)
Specificity
SM067A (Clone PK136) recognises the Mouse NK1.1 cell surface antigen also known as CD161. Although previously thought to recognise only CD161c, recent data has shown that the PK136 antibody may also react with CD161b. CD161c expression itself is strain specific in mice, but recognition of CD161b by PK136 appears to be even more complex, as only some CD161b positive strains are labelled by the antibody. Engagement of CD161c has been reported to have activating function in NK cells, whilst engagement of CD161b is inhibitory. PK136 is useful for the identification of NK cells in selected strains of mice (positive on C57BL, FVB/N and NZB, but negative on AKR and BALB/c) and is also expressed by rare subsets of T cells and monocytes. The antibody has also been used for in vivo depletion of NK cells and In Vitro activation of NK cells.
Flow Cytometry: use 10 μL of 5-10 μg/mL diluted antibody to label 1x10^6 cells in 100 μL. Complement dependent lysis 1-10 μg/mL (see Ref.4). In vivo depletion of NK cells (see Ref.4). Immunoprecipitation. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Concentration
1.0 mg/mL
Buffer
PBS, pH 7.4, without preservatives
Preservative
Without preservative
Handling Advice
Dilute only prior to immediate use. Avoid cycles of freezing and thawing.
Storage
4 °C/-20 °C
Storage Comment
Store the antibody (undiluted) at 2-8 °C for one month or (in aliquots) at -20 °C for longer.
NK1.1 is a cell surface glycoprotein encoded by members of the NKR-P1 gene family. In the mouse the NKR-P1 family has three members, NKR-P1A, -B and -C, whilst in the human only one member has been identified. The human protein has received the designation CD161, and the mouse proteins have been referred to as CD161a, -b, -c etc.Synonyms: C-type lectin domain family 5 member B, CLEC5B, HNKR-P1a, Killer cell lectin-like receptor subfamily B member 1, NKRP1A, Natural killer cell surface protein P1A