Description
CD52 may play a role in carrying and orienting carbohydrate, as well as having a more specific role. Expressed on lymphohematopoietic tissues, including thymus, spleen, and bone marrow, but not in liver, kidney, and brain.
Molecular mass: 7,798 Da with 74 amino acids. In mature form, propeptide is removed, and GPI anchored and glycosylated.
Key words: CD52, CAMPATH-1 antigen, Lymphocyte differentiation antigen B7, Cell membrane, GPI-anchor, Glycoprotein.
Specifications:
Reactivity: Mouse. Likely to react with rat due to the sequence identity.
Immunogen: Synthetic peptide corresponding to 29-48 amino acids of mouse CD52, C-AASGTNKNSTSTKKTPLKSG, conjugated with KLH
Form: Whole rabbit antiserum added with 0.1% sodium azide.
Validation: Specificity validated with KO mouse (Fig.2)
Storage: Shipped at 4℃ or at -20℃. Upon arrival, spin-down and store at -20℃.
Applications:
Western blotting (1/1,000 dilution)
Immunohistchemistry-P (1/100 dilution)
Immunofluorescence staining (1/100 dilution)
Database Links:
uniprot/Q64389 Mouse CD52
Gene ID 23833 Mouse CD52
Reference: This antibody was described in Ref.1 and used in the following publications.
Yamaguchi R et al. (2008) Cd52, known as a major maturation-associated sperm membrane antigen secreted from the epididymis, is not required for fertilization in the mouse. Genes Cells.13:851-61.WB.
Fig.1 Western blotting analysis of CD52 expression in various tissues with anti-CD52 antibody. Testes, male reproductive ducts and sperm protein were extracted with lysis buffer containing Triton X-100 and subjected to western blot analysis. Western blots containing equal amounts of tissue proteins (30 µg) and sperm protein (10 µg) were reacted with anti-CD52 antibody at 1/1,000 dilution.
Fig.2. Western blot analysis of CD52 in cauda epididymal lysates and sperm lysates of wild type and CD52 deficient mice. Cd52+/+ (+/+), Cd52+/– (+/–), and Cd52−/–(–/–).
Cauda epididymis and sperm from vas deferens were lysed in lysis buffer containing 1% TritonX-100. Proteins (30 μg for cauda epididimis and 10 μg for sperm) were analyzed by western blotting with anti-CD52 antibody at 1/1,000 dilution.
Fig.3. Western blot analysis of CD52 in lysates of mouse testis and sperm with anti-CD52 antibody. Proteins in the lysates (10 μg) are separated on SDS-PAGE (10-20% gradient) and electro-blotted to PVDF membrane. The membrane was reacted with anti-CD52 antibody at 1/1,000 dilution. As the second antibody, anti-rabbit IgG antibody conjugated with HRP (ab97051) was used at 1/10,000 dilution. The numbers on the right are positions of protein size markers shown in kDa.
Fig.4. Immunohistochemistry of mouse testis using anti-CD52 antibody. Formalin-fixed and paraffin-embedded mouse testis Deparaffinization by LemosolRA (#122-03991, Wako, Osaka)
Rehydration 100% Et-OH, 95%, 90%, 70%, DW
Antigen retrieval Histo/Zyme (Cat.# k046; Diagnostic BioSystems)
Washing PBST (0.25% triton X-100/PBS-)
Blocking 10 % FBS / PBST 30 min
1st antibody 1/100 dilution in PBS- 4℃ O/N
Washing PBS-
2nd antibody 1,000 dilution, 60 min (AF-488 goat anti-rabbit IgG (H&L)
Washing PBS- 5 min, 3 times
DAPI 1.0μg/mL DAPI in TBS 10 min
Mount ImmunoSelect Antifading Mounting Medium (SCR-38447; Dianova)
Fig. 5 Immunofluorescence staining of CD52 in NIH3T3 cells with anti-CD52 antibody. The cells were fixed in 4% paraaformaldehyde overnight.
Permeabilization in 0.25% Triton X-100/PBS for 10 min
Blocking in 1.5% BSA/PBS for 30 min
1st antibodies diluted 1/100 by blocking buffer and incubated over night
2nd antibody,goat, anti-mouse IgG conjugated withAlex 488 (1/1000 dilution).
Nuclei were stained with DAPI.
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