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CD9 Polyclonal antibody

CD9 Polyclonal Antibody for WB, IF, FC, IHC, ELISA

Host / Isotype

Rabbit / IgG


human, mouse, rat and More (4)





Cat no : 20597-1-AP


5H9, 5H9 antigen, BA2, BTCC 1, CD9, CD9 antigen, CD9 molecule, Cell and organelle markers, DRAP 27, Exosome marker, GIG2, Leukocyte antigen MIC3, MIC3, Motility related protein, MRP 1, P24, Tetraspanin 29, Tspan 29, TSPAN29

Tested Applications

Positive WB detected inHepG2 cells, mouse placenta tissue, RAW 264.7 cells, HeLa cells, L02 cells, human placenta tissue, mouse liver tissue, rat liver tissue, THP-1 cells
Positive IHC detected inhuman lung cancer tissue, human breast cancer tissue, human endometrial cancer tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
Positive IF detected inMCF-7 cells
Positive FC detected inHeLa cells

Recommended dilution

Western Blot (WB)WB : 1:1000-1:6000
Immunohistochemistry (IHC)IHC : 1:1000-1:4000
Immunofluorescence (IF)IF : 1:50-1:500
Flow Cytometry (FC)FC : 0.40 ug per 10^6 cells in a 100 µl suspension
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.

Product Information

20597-1-AP targets CD9 in WB, IF, FC, IHC, ELISA applications and shows reactivity with human, mouse, rat samples.

Tested Reactivity human, mouse, rat
Cited Reactivityhuman, mouse, rat, chicken, monkey, pig, Bat
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen CD9 fusion protein Ag14546
Full Name CD9 molecule
Calculated Molecular Weight 228 aa, 25 kDa
Observed Molecular Weight 23-30 kDa
GenBank Accession NumberBC011988
Gene Symbol CD9
Gene ID (NCBI) 928
Conjugate Unconjugated
Form Liquid
Purification MethodAntigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA.

Background Information

The cell-surface molecule CD9, a member of the transmembrane-4 superfamily, interacts with the integrin family and other membrane proteins, and is postulated to participate in cell migration and adhesion. Expression of CD9 enhances membrane fusion between muscle cells and promotes viral infection in some cells (PMID:10459022). It is often used as a mesenchymal stem cell marker (PMID:18005405). The CD9 antigen appears to be a 227-amino acid molecule with four hydrophobic domains and one N-glycosylation site (PMID: 1840589). This antibody detects bands of 23-30 kDa, it may be due to the difference of glycosylations (PMID: 8701996).


Product Specific Protocols
WB protocol for CD9 antibody 20597-1-APDownload protocol
IHC protocol for CD9 antibody 20597-1-APDownload protocol
IF protocol for CD9 antibody 20597-1-APDownload protocol
FC protocol for CD9 antibody 20597-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols




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