TABLE 2.
TAG “compartmentation” genes in yeast and their apparent homologs in Arabidopsis.
| Yeast gene | Protein function | Candidate Arabidopsis homolog(s)a |
| ADE8 | Phosphoribosyl-glycinamide transformylase (de novo purine biosynthesis) | At1g31220 |
| ADE12 | Adenylosuccinate synthase (purine biosynthesis) | At3g57610 |
| ANP1 | Alpha-1,6 mannosyltransferase transmembrane subunit | No compelling homologb |
| CHC1 | Clathrin heavy chain subunit | At3g08530; At3g11130 |
| CNM67 | Spindle pole body component required for proper nuclear migration | No compelling homologb |
| ERD1 | Membrane protein; retention of lumenal ER proteins | At5g35730; At2g32295 |
| EST3 | Telomerase component | No compelling homologb |
| KEM1 | Component of cytoplasmic processing (P) bodies involved in mRNA decay | At1g75660; At5g42540; At5g42540; At1g54490 |
| MDM20 | Non-catalytic subunit of the NatB N-terminal acetyltransferase | No compelling homologb |
| NEM1 | Catalytic subunit of Nem1p-Spo7p phosphatase; regulates P-lipid synthesis | At5g46410; AT5G11860; AT4G18140 (SCP1-like P-ases) |
| OST4 | Subunit of the oligosaccharyltransferase complex of the ER lumen | No compelling homologb |
| PAF1 | Component of the Paf1p complex; modulates the activity of RNA polymerases | At1g79730 |
| ROX3 | Subunit of the RNA polymerase II mediator complex | No compelling homologb |
| SPO7 | Regulatory subunit of Nem1p-Spo7p phosphatase | No compelling homologb |
| SSD1 | Translational repressor with a role in cell wall polar growth and integrity | At1g77680; At2g17510 |
| TPD3 | Subunit A of protein phosphatase 2A (PP2A); required for cell morphogenesis | At3g25800; At1g13320; At1g25490 |
| VMA6 | Integral membrane subunit of vacuolar H -ATPase (V-ATPase) | At3g28715; At3g28710 |
| VPS16 | Vacuole protein sorting subunit; essential for membrane docking and fusion | At2g38020 |
| VPS66 | Cytoplasmic protein of unknown function involved in vacuolar protein sorting | No compelling homologb |
| YLR404W | Seipin, lipid droplet size, homology to human BSCL2 involved in lipodystrophy | At5g16460; At1g29760; At2g34380 |