
These antibodies are validated on HuProt™ Human Protein Microarrays containing over 21,000 full-length human proteins, including the specific target of interest. LEARN MORE
Trial Size Available
Carrier-Free Available


Formalin-fixed, paraffin-embedded human placenta stained with CD31 Mouse Monoclonal Antibody (PECAM1/3539). HIER: Tris/EDTA, pH9.0, 45min. 2°C: HRP-polymer, 30min. DAB, 5min.

Analysis of Protein Array containing more than 19,000 full-length human proteins using CD31 Mouse Monoclonal Antibody (PECAM1/3539) Z- and S- Score: The Z-score represents the strength of a signal that a monoclonal antibody (MAb) (in combination with a fluorescently-tagged anti-IgG secondary antibody) produces when binding to a particular protein on the HuProtTM array. Z-scores are described in units of standard deviations (SD's) above the mean value of all signals generated on that array. If targets on HuProtTM are arranged in descending order of the Z-score, the S-score is the difference (also in units of SD's) between the Z-score. S-score therefore represents the relative target specificity of a MAb to its intended target. A MAb is considered to specific to its intended target, if the MAb has an S-score of at least 2.5. For example, if a MAb binds to protein X with a Z-score of 43 and to protein Y with a Z-score of 14, then the S-score for the binding of that MAb to protein X is equal to 29.
| Document Name | |
|---|---|
| Datasheet | Download Here |
| Material Safety Data Sheet | Download Here |
| Applications | Tested Dilutions | Protocol | Note |
|---|---|---|---|
| Immunohistochemistry (IHC) | 1-2ug/ml | IHC Protocol | 30 min at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95°C followed by cooling at RT for 20 minutes |
| Western Blot (WB) | 2-4ug/ml | Western Blot Protocol |
CD31 (PECAM-1) is a transmembrane glycoprotein member of the immunoglobulin supergene family of adhesion molecules. CD31 is expressed by stem cells of the hematopoietic system and is primarily used to identify and concentrate these cells for experimental studies as well as for bone marrow transplantation. Anti-CD31 has shown to be highly specific and sensitive for vascular endothelial cells. Staining of nonvascular tumors (excluding hematopoietic neoplasms) is rare. CD31 MAb reacts with normal, benign, and malignant endothelial cells which make up blood vessel lining. The level of CD31 expression can help to determine the degree of tumor angiogenesis, and a high level of CD31 expression may imply a rapidly growing tumor and potentially a predictor of tumor recurrence.
Should a NeoBiotechnologies antibody not meet the experimental expectations outlined on our website or datasheet, please contact our Technical Support. We unconditionally guarantee our product.
Our team of scientists are ready to help you with expert recommendations or technical assistance related to applications or product use.
Information
© 2026 NeoBiotechnologies. All Rights Reserved.
Monday-Friday: 8:00am – 8:00pm Pacific Time