About TCR gamma/delta
T cell receptors recognize foreign antigens which have been processed as small peptides and bound to major histocompatibility complex (MHC) molecules at the surface of antigen presenting cells (APC). Each T cell receptor is a dimer consisting of one alpha and one beta chain or one delta and one gamma chain. In a single cell, the T cell receptor loci are rearranged and expressed in the order delta, gamma, beta, and alpha. If both delta and gamma rearrangements produce functional chains, the cell expresses delta and gamma. If not, the cell proceeds to rearrange the beta and alpha loci. This region represents the germline organization of the T cell receptor gamma locus. The gamma locus includes V (variable), J (joining), and C (constant) segments. During T cell development, the gamma chain is synthesized by a recombination event at the DNA level joining a V segment with a J segment; the C segment is later joined by splicing at the RNA level. Recombination of many different V segments with several J segments provides a wide range of antigen recognition. Additional diversity is attained by junctional diversity, resulting from the random addition of nucleotides by terminal deoxynucleotidyltransferase. Several V segments of the gamma locus are known to be incapable of encoding a protein and are considered pseudogenes. Somatic rearrangement of the gamma locus has been observed in T cells derived from patients with T cell leukemia and ataxia telangiectasia. [provided by RefSeq, Jul 2008]

About PerCP-eFluor 710
PerCP-eFluor™ 710 (PerCP-eF710) is a red-emitting tandem fluorophore that combines PerCP and eF710. The donor molecule, PerCP can be excited by the 488-nm blue laser and and transfers energy to the acceptor molecule, eF710, which emitts light that can be captured with a 695/40 nm bandpass filter. PerCP-eF710 has an excitation peak at 482 nm and an emission peak at 710 nm, and is considered a slightly-red shifted but brighter alternative to PerCP-Cy5.5. This dye and associated products are mostly used for flow cytometry. This dye is part of the larger eFluor™ dye family, developed by eBioscience which is now part of ThermoFisher Scientific.