| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species | 
| Q12440 | Anaphase-promoting complex subunit 2; | APC2; RSI1; YLR127C; | NP_013228.1; | 853 | yeast | 
| Q04601 | Anaphase-promoting complex subunit 4; | APC4; YDR118W; | NP_010403.3; | 652 | yeast | 
| Q08683 | Anaphase-promoting complex subunit 5; | APC5; RMC1; YOR249C; | NP_014892.3; | 685 | yeast | 
| Q12107 | Anaphase-promoting complex subunit 9; | APC9; YLR102C; | NP_013203.1; | 265 | yeast | 
| P38281 | Actin patches distal protein 1; | APD1; YBR151W; | NP_009709.1; | 316 | yeast | 
| P32454 | Aminopeptidase 2, mitochondrial; AP-II; Aminopeptidase II; EC 3.4.11.-; YscII; | APE2; LAP1; YKL157W; | NP_012765.3; | 952 | yeast | 
| P37302 | Aminopeptidase Y; EC 3.4.11.15; | APE3; YBR286W; | NP_009845.2; | 537 | yeast | 
| Q04413 | Putative uncharacterized protein API2; | API2; YDR525W; | NULL | 109 | yeast | 
| P53940 | J domain-containing protein APJ1; | APJ1; YNL077W; | NP_014322.1; | 528 | yeast | 
| P38700 | Adaptin medium chain homolog APM2; Adaptin-mu1-II; | APM2; YHL019C; | NP_011844.1; | 605 | yeast | 
| P22936 | DNA-(apurinic or apyrimidinic site) lyase 1; EC 4.2.99.18; Apurinic-apyrimidinic endonuclease 1; AP endonuclease 1; | APN1; YKL114C; | NP_012808.1; | 367 | yeast | 
| P38207 | DNA-(apurinic or apyrimidinic site) lyase 2; EC 4.2.99.18; AP endonuclease 2; Apurinic-apyrimidinic endonuclease 2; | APN2; ETH1; YBL019W; | NP_009534.1; | 520 | yeast | 
| P53933 | Phosphatidate phosphatase APP1; PAP; EC 3.1.3.4; Actin patch protein 1; | APP1; YNL094W; | NP_014305.1; | 587 | yeast | 
| P40532 | Nuclear membrane organization protein APQ12; | APQ12; YIL040W; | NP_012224.1; | 138 | yeast | 
| P47036 | Putative uncharacterized protein APQ13; | APQ13; YJL075C; | NULL | 138 | yeast | 
| P49435 | Adenine phosphoribosyltransferase 1; APRT 1; EC 2.4.2.7; | APT1; YML022W; | NP_013690.1; | 187 | yeast | 
| P36973 | Adenine phosphoribosyltransferase 2; APRT 2; EC 2.4.2.7; | APT2; YDR441C; | NP_010729.3; | 181 | yeast | 
| Q12354 | Acyl-protein thioesterase 1; EC 3.1.2.-; | YLR118C; | NP_013219.1; | 227 | yeast | 
| Q08702 | Aprataxin-like protein; EC 3.-.-.-; Hit family protein 3; | HNT3; YOR258W; | NP_014901.1; | 217 | yeast | 
| P53943 | Probable transporter AQR1; | AQR1; YNL065W; | NP_014334.3; | 586 | yeast | 


