| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P43596 | ISWI one complex protein 3; | IOC3; YFR013W; | NP_116668.1; | 787 | yeast |
| Q04213 | ISWI one complex protein 4; | IOC4; YMR044W; | NP_013758.1; | 475 | yeast |
| P01094 | Protease A inhibitor 3; Proteinase inhibitor I(A)3; Proteinase yscA-inhibitor; Saccharopepsin inhibitor; | PAI3; YMR174C; | NP_013899.1; | 68 | yeast |
| P0CT04 | Protease B inhibitor 2; Proteinase inhibitor I(B)2; | PBI2; YNL015W; | NP_014383.1; | 75 | yeast |
| P38803 | Pre-rRNA-processing protein IPI1; Involved in processing IST2 protein 1; | IPI1; YHR085W; | NP_011953.1; | 334 | yeast |
| P53877 | Pre-rRNA-processing protein IPI3; Involved in processing IST2 protein 3; | IPI3; YNL182C; | NP_014217.1; | 555 | yeast |
| Q06667 | Inositol-pentakisphosphate 2-kinase; EC 2.7.1.158; Inositol-1,3,4,5,6-pentakisphosphate 2-kinase; Ins(1,3,4,5,6)P5 2-kinase; InsP5 2-kinase; | IPK1; GSL1; YDR315C; | NP_010601.3; | 281 | yeast |
| P38991 | Spindle assembly checkpoint kinase; EC 2.7.11.1; Aurora kinase; Increase-in-ploidy protein 1; | IPL1; YPL209C; | NP_015115.1; | 367 | yeast |
| P07250 | Inositol polyphosphate multikinase; IPMK; EC 2.7.1.151; Arginine metabolism regulation protein III; | ARG82; ARGR3 IPK2; YDR173C; | NP_010458.3; | 355 | yeast |
| P38954 | Inositolphosphotransferase 1; EC 2.-.-.-; Mannosyl diphosphorylinositol ceramide synthase; | IPT1; SYR4; YDR072C; | NP_010357.3; | 527 | yeast |
| P28239 | Inorganic pyrophosphatase, mitochondrial; EC 3.6.1.1; Pyrophosphate phospho-hydrolase; PPase; | PPA2; IPP2; YMR267W; | NP_013994.1; | 310 | yeast |
| P00817 | Inorganic pyrophosphatase; EC 3.6.1.1; Pyrophosphate phospho-hydrolase; PPase; | IPP1; PPA PPA1; YBR011C; | NP_009565.1; | 287 | yeast |
| Q12280 | Ras GTPase-activating-like protein IQG1; Cytokinesis protein 1; IQGAP-related protein 1; | IQG1; CYK1; YPL242C; | NP_015082.1; | 1495 | yeast |
| P18963 | Inhibitory regulator protein IRA1; | IRA1; GLC1 PPD1; YBR140C; | NP_009698.3; | 3092 | yeast |
| P19158 | Inhibitory regulator protein IRA2; | IRA2; CCS1 GLC4; YOL081W; | NP_014560.1; | 3079 | yeast |
| Q08118 | Uncharacterized protein IRC10; Increased recombination centers protein 10; | IRC10; YOL015W; | NP_014627.1; | 586 | yeast |
| Q12479 | Putative increased recombination centers protein 11; | IRC11; YOR013W; | NULL | 156 | yeast |
| Q08630 | Putative increased recombination centers protein 13; | IRC13; YOR235W; | NULL | 104 | yeast |
| Q08522 | Putative increased recombination centers protein 14; | IRC14; YOR135C; | NULL | 113 | yeast |
| Q02733 | Increased recombination centers protein 15; | IRC15; YPL017C; | NP_015308.1; | 499 | yeast |
