| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P0ACG8 | Heat shock protein 15; HSP15; | hslR; yrfH; b3400 JW3363; | NP_417859.1;YP_492032.1; | 133 | escherichia-coli |
| P0A6H5 | ATP-dependent protease ATPase subunit HslU; Heat shock protein HslU; Unfoldase HslU; | hslU; htpI; b3931 JW3902; | NP_418366.1;YP_491520.1; | 443 | escherichia-coli |
| P0A7B8 | ATP-dependent protease subunit HslV; EC 3.4.25.2; Heat shock protein HslV; | hslV; htpO yiiC; b3932 JW3903; | NP_418367.1;YP_491519.1; | 176 | escherichia-coli |
| P0AB20 | Heat shock protein HspQ; | hspQ; yccV; b0966 JW5970; | NP_415486.4;YP_489238.1; | 105 | escherichia-coli |
| P31474 | Probable transport protein HsrA; High-copy suppressor of rspA; | hsrA; yieO; b3754 JW3733; | NP_418210.1;YP_491675.1; | 475 | escherichia-coli |
| P28697 | Putative uncharacterized protein HtgA; Heat shock protein HtpY; | htgA; htpY; b0012 JW5001; | NULL | 196 | escherichia-coli |
| P0A6Z3 | Chaperone protein HtpG; Heat shock protein C62.5; Heat shock protein HtpG; High temperature protein G; | htpG; b0473 JW0462; | NP_415006.1;YP_488764.1; | 624 | escherichia-coli |
| P23894 | Protease HtpX; EC 3.4.24.-; Heat shock protein HtpX; | htpX; b1829 JW1818; | NP_416343.1;YP_490091.1; | 293 | escherichia-coli |
| P27375 | Heat shock protein C; | htrC; yjaZ; b3989 JW3952; | NP_418416.1;YP_491472.1; | 179 | escherichia-coli |
| P33129 | Outer membrane usher protein HtrE; Heat shock protein E; | htrE; b0139 JW0135; | NP_414681.1;YP_488442.1; | 865 | escherichia-coli |
| P25666 | Protein HtrL; | htrL; yibB; b3618 JW5644; | NP_418075.2;YP_491815.1; | 285 | escherichia-coli |
| P19930 | Hydrogenase 1 maturation protease; EC 3.4.23.-; | hyaD; b0975 JW0957; | NP_415494.1;YP_489246.1; | 195 | escherichia-coli |
| P19931 | Hydrogenase-1 operon protein HyaE; | hyaE; b0976 JW0958; | NP_415495.1;YP_489247.1; | 132 | escherichia-coli |
| P19932 | Hydrogenase-1 operon protein HyaF; | hyaF; b0977 JW0959; | NP_415496.1;YP_489248.1; | 285 | escherichia-coli |
| P0AAJ8 | Hydrogenase-2 operon protein HybA; | hybA; b2996 JW2964; | NP_417470.1;YP_491193.1; | 328 | escherichia-coli |
| P37182 | Hydrogenase 2 maturation protease; EC 3.4.23.-; | hybD; b2993 JW2961; | NP_417467.1;YP_491190.1; | 164 | escherichia-coli |
| P37180 | Probable Ni/Fe-hydrogenase 2 b-type cytochrome subunit; | hybB; b2995 JW5494; | NP_417469.1;YP_491192.1; | 392 | escherichia-coli |
| P0AAN1 | Hydrogenase-2 operon protein HybE; | hybE; b2992 JW2960; | NP_417466.1;YP_491189.1; | 162 | escherichia-coli |
| P0AEV4 | Formate hydrogenlyase regulatory protein HycA; | hycA; hevA; b2725 JW2695; | NP_417205.1;YP_490934.1; | 153 | escherichia-coli |
| P0A703 | Probable hydrogenase nickel incorporation protein HybF; Hydrogenase-2 operon protein HybF; | hybF; b2991 JW5493; | NP_417465.1;YP_491188.1; | 113 | escherichia-coli |
