Genome-wide analysis of cyclophilin proteins in 21 oomycetes

Yan Zhang, Kyle Fletcher, Rongkui Han, Richard Michelmore, Ruiwu Yang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Cyclophilins (CYPs), a highly-conserved family of proteins, belong to a subgroup of immunophilins. Ubiquitous in eukaryotes and prokaryotes, CYPs have peptidyl-prolyl cis–trans isomerase (PPIase) activity and have been implicated as virulence factors in plant pathogenesis by oomycetes. We identified 16 CYP orthogroups from 21 diverse oomycetes. Each species was found to encode 15 to 35 CYP genes. Three of these orthogroups contained proteins with signal peptides at the N-terminal end, suggesting a role in secretion. Multidomain analysis revealed five conserved motifs of the CYP domain of oomycetes shared with other eukaryotic PPIases. Expression analysis of CYP proteins in different asexual life stages of the hemibiotrophic Phytophthora infestans and the biotrophic Plasmopara halstedii demonstrated distinct expression profiles between life stages. In addition to providing detailed comparative information on the CYPs in multiple oomycetes, this study identified candidate CYP effectors that could be the foundation for future studies of virulence.

Original languageEnglish (US)
Article number24
Issue number1
StatePublished - Jan 2020


  • Cyclophilin
  • Effector
  • Oomycete
  • Phytophthora
  • Plasmopara

ASJC Scopus subject areas

  • Immunology and Allergy
  • Molecular Biology
  • Immunology and Microbiology(all)
  • Microbiology (medical)
  • Infectious Diseases


Dive into the research topics of 'Genome-wide analysis of cyclophilin proteins in 21 oomycetes'. Together they form a unique fingerprint.

Cite this