PUBLICATION
Evolution of the IL17 receptor family in chordates: a new subfamily IL17REL
- Authors
- Wu, B., Jin, M., Zhang, Y., Wei, T., and Bai, Z.
- ID
- ZDB-PUB-110713-35
- Date
- 2011
- Source
- Immunogenetics 63(12): 835-45 (Journal)
- Registered Authors
- Keywords
- interleukin 17 receptor, IL17REL, chordate, evolution
- MeSH Terms
-
- Amino Acid Sequence
- Animals
- Base Sequence
- Chordata/genetics*
- Chordata/immunology*
- Conserved Sequence
- Evolution, Molecular*
- Humans
- Interleukin-17
- Receptors, Interleukin-17/chemistry
- Receptors, Interleukin-17/genetics*
- Sequence Alignment
- Sequence Analysis, DNA
- PubMed
- 21732179 Full text @ Immunogenetics
Citation
Wu, B., Jin, M., Zhang, Y., Wei, T., and Bai, Z. (2011) Evolution of the IL17 receptor family in chordates: a new subfamily IL17REL. Immunogenetics. 63(12):835-45.
Abstract
The human interleukin 17 receptor (IL17R) family plays a critical role in inflammatory responses and contributes to the pathology of many autoimmune diseases. So far, five members, IL17RA to IL17RE, have been identified. Recently, some IL17R genes have been identified in non-mammalian species, such as zebrafish IL17RD; however, there are no reports on the evolutionary history of this complex gene family through comparative phylogenetic approaches. Here, we concentrated on the IL17R evolution in chordates. There are two IL17Rs in the genome of the basal chordate amphioxus: IL17RA and IL17RD. After two rounds of whole genome duplications, these two IL17R genes expanded into five early vertebrate IL17R genes, IL17RA to IL17RE. IL17RA and IL17RD are found in most vertebrates, whereas the other three, IL17RB, ILR17RC, and IL17RE, underwent some loss in vertebrates during evolution. Our sequence and structure analyses reveal functional similarities and distinctions between the different IL17Rs. Based on similarity searches for IL17R-like proteins within chordate sequences, a group of IL17RE-like (IL17REL) proteins were identified from mammalians to lower vertebrates. In silico and expression analyses on the novel IL17RELs showed that this group of receptors is highly conserved across species, indicating that IL17REL may represent a unique subfamily of IL17Rs.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping