| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| Q3E792 | 40S ribosomal protein S25-A; RP45; S31; YS23; | RPS25A; RPS31A; YGR027C; | NP_011541.1; | 108 | yeast |
| P0C0T4 | 40S ribosomal protein S25-B; RP45; S31; YS23; | RPS25B; RPS31 RPS31B; YLR333C; | NP_013437.1; | 108 | yeast |
| P39938 | 40S ribosomal protein S26-A; | RPS26A; RPS26; YGL189C; | NP_011326.1; | 119 | yeast |
| P39939 | 40S ribosomal protein S26-B; | RPS26B; YER131W; | NP_011057.1; | 119 | yeast |
| P05759 | Ubiquitin-40S ribosomal protein S31; [Cleaved into: Ubiquitin; 40S ribosomal protein S31 (CEP76) (S37) (YS24)]; | RPS31; RPS37 UBI3; YLR167W; | NP_013268.1; | 152 | yeast |
| P38711 | 40S ribosomal protein S27-B; RP61; YS20; | RPS27B; YHR021C; | NP_011885.1; | 82 | yeast |
| P35997 | 40S ribosomal protein S27-A; RP61; YS20; | RPS27A; YKL156W; | NP_012766.1; | 82 | yeast |
| Q3E7X9 | 40S ribosomal protein S28-A; S33; YS27; | RPS28A; RPS33 RPS33A; YOR167C; | NP_014810.1; | 67 | yeast |
| P0C0X0 | 40S ribosomal protein S28-B; S33; YS27; | RPS28B; RPS33B; YLR264W; | NP_013366.1; | 67 | yeast |
| P41057 | 40S ribosomal protein S29-A; S36; YS29; | RPS29A; RPS36A YS29A; YLR388W; | NP_013492.3; | 56 | yeast |
| P41058 | 40S ribosomal protein S29-B; S36; YS29; | RPS29B; RPS36B YS29B; YDL061C; | NP_010222.1; | 56 | yeast |
| P25443 | 40S ribosomal protein S2; Omnipotent suppressor protein SUP44; RP12; S4; YS5; | RPS2; RPS4 SUP38 SUP44; YGL123W; | NP_011392.1; | 254 | yeast |
| P0CX33 | 40S ribosomal protein S30-A; | RPS30A; YLR287C-A; | NP_013390.1;NP_014825.3; | 63 | yeast |
| P0CX34 | 40S ribosomal protein S30-B; | RPS30B; YOR182C; | NP_013390.1;NP_014825.3; | 63 | yeast |
| P33442 | 40S ribosomal protein S1-A; RP10A; | RPS1A; PLC1 RPS10A; YLR441C; | NP_013546.1; | 255 | yeast |
| P23248 | 40S ribosomal protein S1-B; RP10B; | RPS1B; PLC2 RPS10B; YML063W; | NP_013648.1; | 255 | yeast |
| P05750 | 40S ribosomal protein S3; RP13; YS3; | RPS3; SUF14; YNL178W; | NP_014221.3; | 240 | yeast |
| P0CX35 | 40S ribosomal protein S4-A; RP5; S7; YS6; | RPS4A; RPS7B; YJR145C; | NP_012073.1;NP_012679.3; | 261 | yeast |
| P0CX36 | 40S ribosomal protein S4-B; RP5; S7; YS6; | RPS4B; RPS7A; YHR203C; | NP_012073.1;NP_012679.3; | 261 | yeast |
| P26783 | 40S ribosomal protein S5; RP14; S2; YS8; | RPS5; RPS2; YJR123W; | NP_012657.1; | 225 | yeast |
