| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species | 
| P0AE76 | Bifunctional adenosylcobalamin biosynthesis protein CobU; Adenosylcobinamide kinase; EC 2.7.1.156; Adenosylcobinamide-phosphate guanylyltransferase; EC 2.7.7.62; | cobU; b1993 JW1971; | NP_416497.1;YP_490236.1; | 181 | escherichia-coli | 
| P0AA82 | Cytosine permease; | codB; b0336 JW0327; | NP_414870.1;YP_488630.1; | 419 | escherichia-coli | 
| P25524 | Cytosine deaminase; CD; CDA; CDase; EC 3.5.4.1; Cytosine aminohydrolase; Isoguanine deaminase; EC 3.5.4.-; | codA; b0337 JW0328; | NP_414871.1;YP_488631.1; | 427 | escherichia-coli | 
| P46891 | HMP-PP phosphatase; EC 3.6.1.-; | cof; b0446 JW0436; | NP_414980.2;YP_488738.1; | 272 | escherichia-coli | 
| P75974 | Putative lambdoid prophage e14 repressor protein C2; | cohE; ymfK; b1145 JW1131; | NP_415663.1;YP_489413.1; | 224 | escherichia-coli | 
| P75952 | HTH-type transcriptional repressor ComR; Copper outer membrane regulator; | comR; ycfQ; b1111 JW5159; | NP_415629.4;YP_489379.1; | 210 | escherichia-coli | 
| Q59385 | Copper-exporting P-type ATPase A; EC 3.6.3.54; Cu(+)-exporting ATPase; | copA; ybaR; b0484 JW0473; | NP_415017.1;YP_488775.1; | 834 | escherichia-coli | 
| P13959 | Replication regulatory protein RepA2; Protein CopB; | repA2; copB; ECOK12F006; | NP_061385.1;WP_000083834.1;YP_009074891.1; | 85 | escherichia-coli | 
| P0ABI4 | Magnesium transport protein CorA; | corA; b3816 JW3789; | NP_418260.1;YP_491626.1; | 316 | escherichia-coli | 
| P0AE78 | Magnesium and cobalt efflux protein CorC; | corC; ybeX; b0658 JW0655; | NP_415191.1;YP_488949.1; | 292 | escherichia-coli | 
| P0AEW4 | 3',5'-cyclic adenosine monophosphate phosphodiesterase CpdA; 3',5'-cyclic AMP phosphodiesterase; cAMP phosphodiesterase; EC 3.1.4.17; | cpdA; icc; b3032 JW3000; | NP_417504.1;YP_491224.1; | 275 | escherichia-coli | 
| P08331 | 2',3'-cyclic-nucleotide 2'-phosphodiesterase/3'-nucleotidase; EC 3.1.3.6; EC 3.1.4.16; | cpdB; b4213 JW4171; | NP_418634.1;YP_492355.1; | 647 | escherichia-coli | 
| Q46824 | Toxin CptA; | cptA; ygfX; b2896 JW2864; | NP_417372.1;YP_491097.1; | 135 | escherichia-coli | 
| P64559 | Antitoxin CptB; | cptB; ygfY; b2897 JW2865; | NP_417373.1;YP_491098.1; | 88 | escherichia-coli | 
| P0AE82 | Sensor protein CpxA; EC 2.7.13.3; | cpxA; ecfB eup ssd; b3911 JW3882; | NP_418347.1;YP_491539.1; | 457 | escherichia-coli | 
| P0AE85 | Periplasmic protein CpxP; | cpxP; yiiO; b4484 JW5558; | YP_026277.1;YP_491537.1; | 166 | escherichia-coli | 
| P0AE88 | Transcriptional regulatory protein CpxR; | cpxR; yiiA; b3912 JW3883; | NP_418348.1;YP_491538.1; | 232 | escherichia-coli | 
| P0ACP1 | Catabolite repressor/activator; Fructose repressor; | cra; fruC fruR shl; b0080 JW0078; | NP_414622.1;YP_488385.1; | 334 | escherichia-coli | 
| P37002 | Putative fluoride ion transporter CrcB; | crcB; ybeI; b0624 JW0619; | NP_415157.1;YP_488915.1; | 127 | escherichia-coli | 
| P0AE91 | Protein CreA; Catabolite regulation protein A; | creA; yjjD; b4397 JW4360; | NP_418814.1;YP_492527.1; | 157 | escherichia-coli | 
