| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P32705 | Cation/acetate symporter ActP; Acetate permease; Acetate transporter ActP; | actP; yjcG; b4067 JW4028; | NP_418491.1;YP_492210.1; | 549 | escherichia-coli |
| P26646 | Probable acrylyl-CoA reductase AcuI; EC 1.3.1.84; Acryloyl-coenzyme A reductase AcuI; | acuI; yhdH; b3253 JW3222; | NP_417719.1;YP_491436.1; | 324 | escherichia-coli |
| P0AB65 | Acylphosphatase; EC 3.6.1.7; Acylphosphate phosphohydrolase; | yccX; b0968 JW5131; | NP_415488.1;YP_489240.1; | 92 | escherichia-coli |
| P06134 | Bifunctional transcriptional activator/DNA repair enzyme Ada; Regulatory protein of adaptive response; O6-methylguanine-DNA alkyltransferase; Methylphosphotriester-DNA methyltransferase; EC 2.1.1.63; EC 2.1.1.n11; | ada; b2213 JW2201; | NP_416717.1;YP_490451.1; | 354 | escherichia-coli |
| P22333 | Adenosine deaminase; EC 3.5.4.4; Adenosine aminohydrolase; | add; b1623 JW1615; | NP_416140.1;YP_489886.1; | 333 | escherichia-coli |
| P31441 | Adenine deaminase; Adenase; Adenine aminase; EC 3.5.4.2; | ade; yicP; b3665 JW3640; | NP_418121.1;YP_491769.1; | 588 | escherichia-coli |
| P31466 | Adenine permease AdeP; | adeP; purP yieG; b3714 JW3692; | NP_418170.1;YP_491715.1; | 445 | escherichia-coli |
| P31440 | Adenine permease AdeQ; | adeQ; yicO; b3664 JW5636; | NP_418120.2;YP_491770.1; | 444 | escherichia-coli |
| P37686 | Probable alcohol dehydrogenase; EC 1.1.1.1; | yiaY; b3589 JW5648; | YP_026233.1;YP_491845.1; | 383 | escherichia-coli |
| P0A9Q7 | Aldehyde-alcohol dehydrogenase; PFL deactivase; EC 1.2.1.10; EC 1.1.1.1; ACDH; ADH; | adhE; ana; b1241 JW1228; | NP_415757.1;YP_489507.1; | 891 | escherichia-coli |
| P39451 | Alcohol dehydrogenase, propanol-preferring; EC 1.1.1.1; | adhP; yddN; b1478 JW1474; | NP_415995.4;YP_489743.1; | 336 | escherichia-coli |
| P28629 | Biodegradative arginine decarboxylase; ADC; EC 4.1.1.19; | adiA; adi; b4117 JW5731; | NP_418541.2;YP_492260.1; | 755 | escherichia-coli |
| P60061 | Arginine/agmatine antiporter; | adiC; aniC yjdD yjdE; b4115 JW4076; | NP_418539.1;YP_492258.1; | 445 | escherichia-coli |
| P33234 | HTH-type transcriptional regulator AdiY; | adiY; b4116 JW4077; | NP_418540.1;YP_492259.1; | 253 | escherichia-coli |
| Q93K97 | ADP-ribose pyrophosphatase; EC 3.6.1.13; ADP-ribose diphosphatase; ADP-ribose phosphohydrolase; ASPPase; Adenosine diphosphoribose pyrophosphatase; ADPR-PPase; | nudF; aspP yqiE yzzG; b3034 JW3002; | NP_417506.1;YP_491226.1; | 209 | escherichia-coli |
| P0AAP1 | Probable diguanylate cyclase AdrA; DGC; EC 2.7.7.65; | adrA; yaiC; b0385 JW0376; | NP_414919.1;YP_488678.1; | 371 | escherichia-coli |
| P76261 | Putative cyclic-di-GMP phosphodiesterase AdrB; EC 3.1.4.52; | adrB; yoaD; b1815 JW1804; | NP_416329.4;YP_490076.1; | 532 | escherichia-coli |
| P51981 | L-Ala-D/L-Glu epimerase; AE epimerase; AEE; EC 5.1.1.-; | ycjG; ycjH; b1325 JW1318; | NP_415841.4;YP_489594.1; | 321 | escherichia-coli |
| P37127 | Protein AegA; | aegA; yffG; b2468 JW2452; | NP_416963.1;YP_490695.1; | 659 | escherichia-coli |
| P50466 | Aerotaxis receptor; | aer; air yqjJ; b3072 JW3043; | NP_417543.1;YP_491263.1; | 506 | escherichia-coli |
