About CD5
This gene encodes a member of the scavenger receptor cysteine-rich (SRCR) superfamily. Members of this family are secreted or membrane-anchored proteins mainly found in cells associated with the immune system. This protein is a type-I transmembrane glycoprotein found on the surface of thymocytes, T lymphocytes and a subset of B lymphocytes. The encoded protein contains three SRCR domains and may act as a receptor to regulate T-cell proliferation. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Oct 2016]

About APC-R700
APC-R700 from BD Biosciences has an excitation peak at 651 nm and an emission peak at 705 nm. It's useful in flow cytometry and is spectrally similar to APC-Cy5.5, APC-Alexa 700, APC-Alexa 680 and Seta-APC-705.