Genomic Analysis of T Cell Receptor Loci in Opossums
Author Information
Author(s): Zuly E. Parra, Michelle L. Baker, Jennifer Hathaway, April M. Lopez, Jonathan Trujillo, Alana Sharp, Robert D. Miller
Primary Institution: Center for Evolutionary and Theoretical Immunology and Department of Biology, University of New Mexico
Hypothesis
What is the evolutionary origin of the T cell receptor mu (TRM) in marsupials?
Conclusion
The study supports that TRM is a hybrid between a T cell receptor and immunoglobulin locus, with no evidence of recombination in conventional TCR loci.
Supporting Evidence
- The genomic organization of TCR loci in opossums is similar to that of placental mammals.
- TRM appears to be derived from receptor genes that are no longer present in placental mammals.
- Complete genomic analyses provide structural details of marsupial TCR genes.
Takeaway
Opossums have a special type of T cell receptor called TRM, which is different from what other mammals have. This study helps us understand where TRM came from.
Methodology
The study involved genomic sequencing and comparative analysis of T cell receptor loci in the opossum.
Limitations
The origins of TRM remain unclear despite the findings.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website