Table:
text: Fungal prion
List of characterized prions
List of characterized prions
Protein Natural_Host Normal_Function Prion_State Prion_Phenotype Year_Identified_
Ure2p Saccharomyces cerevisiae Nitrogen catabolite repressor [URE3] Growth on poor nitrogen sources 1994
Sup35p Saccharomyces cerevisiae Translation termination factor [PSI+] Increased levels of nonsense suppression 1994
HET-S Podospora anserina Regulates heterokaryon incompatibility [Het-s] Heterokaryon formation between incompatible strains 1997
vacuolar protease B Saccharomyces cerevisiae death in stationary phase, failure in meiosis [β] failure to degrade cellular proteins under N starvation 2003
MAP kinases Podospora anserina increased pigment, slow growth [C]  2006
Rnq1p Saccharomyces cerevisiae Protein template factor [RNQ+],[PIN+] Promotes aggregation of other prions 2008
Mca1* Saccharomyces cerevisiae Putative Yeast Caspase [MCA+] Unknown 2008

text: Fungal prion
List of characterized prions
List of characterized prions
Protein Natural_Host Normal_Function Prion_State Prion_Phenotype Year_Identified_
Swi1 Saccharomyces cerevisiae Chromatin remodeling [SWI+] Poor growth on some carbon sources 2008
Cyc8 Saccharomyces cerevisiae Transcriptional repressor [OCT+] Transcriptional derepression of multiple genes 2009
Mot3 Saccharomyces cerevisiae Nuclear transcription factor [MOT3+] Transcriptional derepression of anaerobic genes 2009
Pma1+Std1 Saccharomyces cerevisiae Pma1 = major plasma membrane proton pump, Std1=minor pump [GAR+] Resistant to glucose-associated repression 2009
Sfp1 Saccharomyces cerevisiae Global transcriptional regulator [ISP+] Antisuppressor of certain sup35 mutations 2010
Mod5 Saccharomyces cerevisiae  [MOD+]  2012

Question: Among the fungal prions, Podospora anserina or Saccharomyces cerevisiae is the natural host for het s ?

Question: From the list of fungal prions, what year was the first prion characterized?

Question: How many prions have been characterized among fungal prions?