Table 1.
Inventory of BTB protein genes in the silkworm genome.
| Subfamily | Proposed name | SilkDB ID | KAIKObase ID | Amino acid residues (aa) |
Molecular weight (Da) |
PI | Subcellular localization | Domain | Chromosome |
|---|---|---|---|---|---|---|---|---|---|
| BTB only | BTBD1 | BGIBMGA000517 | Gene000396 | 1812 | 200095 | 6.01 | nucl | BTB | 1 |
| BTBD2 | BGIBMGA012231 | Gene000660 | 351 | 38870 | 10.06 | mito | BTB | 1 | |
| BTBD3 | BGIBMGA002026 | Gene000081 | 413 | 46323 | 8.62 | mito | BTB | 1 | |
| BTBD4 | BGIBMGA007329 | Gene001228 | 229 | 25941 | 5.91 | nucl | BTB | 3 | |
| BTBD5 | BGIBMGA002966 | Gene002082 | 450 | 52799 | 5.87 | cyto | BTB | 4 | |
| BTBD6 | BGIBMGA003094 | Gene002316 | 366 | 40210 | 8.33 | cyto | BTB | 4 | |
| BTBD7 | BGIBMGA006426 | Gene003326 | 412 | 45681 | 5.00 | nucl | BTB | 6 | |
| BTBD8 | BGIBMGA006356 | Gene003489 | 417 | 48190 | 6.13 | cyto | BTB | 6 | |
| BTBD9 | BGIBMGA008687 | Gene004103 | 288 | 31902 | 8.08 | nucl | BTB | 7 | |
| BTBD10 | No | Gene005182 | 787 | 88357 | 4.89 | nucl | BTB | 9 | |
| BTBD11 | BGIBMGA001715 | Gene006003 | 517 | 56039 | 9.12 | nucl | BTB | 11 | |
| BTBD12 | BGIBMGA009340 | Gene008379 | 340 | 39122 | 6.04 | cyto | BTB | 14 | |
| BTBD13 | BGIBMGA007642 | Gene008555 | 361 | 41882 | 5.21 | cyto | BTB | 15 | |
| BTBD14 | BGIBMGA007941 | Gene008559 | 252 | 29069 | 5.18 | cyto | BTB | 15 | |
| BTBD15 | No | Gene016199 | 128 | 14575 | 7.73 | cyto | BTB | 15 | |
| BTBD16 | BGIBMGA001575 | Gene012166 | 1367 | 155410 | 4.96 | nucl | BTB | 21 | |
| BTBD17 | BGIBMGA011238 | Gene013474 | 538 | 61092 | 6.06 | mito | BTB | 23 | |
| BTBD18 | No | Gene013871 | 379 | 42044 | 8.04 | nucl | BTB | 24 | |
| BTBD19 | BGIBMGA000033 | Gene015082 | 287 | 33573 | 5.96 | cyto | BTB | 26 | |
| BTBD20 | BGIBMGA014444 | Gene016272 | 118 | 13280 | 8.96 | cyto | BTB | Unknown | |
| BTBD21 | BGIBMGA011597 | Gene016080 | 182 | 19966 | 5.69 | nucl | BTB | Unknown | |
|
| |||||||||
| BTB-ANK | ABTB1 | BGIBMGA001072 | Gene008052 | 1133 | 120246 | 8.21 | nucl | ANK-BTB | 13 |
| ABTB2 | BGIBMGA004120 | Gene011234 | 1236 | 139090 | 8.25 | nucl | ANK-BTB | 19 | |
|
| |||||||||
| BTB-BACK | BBTB1 | BGIBMGA006106 | Gene001734 | 593 | 66528 | 5.74 | cyto | BTB-BACK | 4 |
| BBTB2 | BGIBMGA013583 | Gene003242 | 514 | 59279 | 5.85 | nucl | BTB-BACK | 6 | |
| BBTB3 | BGIBMGA005281 | Gene004340 | 359 | 40022 | 7.03 | nucl | BTB-BACK | 8 | |
| BBTB4 | BGIBMGA002863 | No | 669 | 75503 | 5.42 | cyto | BTB-BACK | 10 | |
| BBTB5 | BGIBMGA011825 | Gene006515 | 405 | 44924 | 5.43 | nucl | BTB-BACK | 11 | |
|
| |||||||||
| BTB-BACK-PHR | BBP1 | BGIBMGA007155 | Gene012272 | 505 | 56012 | 5.47 | cyto | BTB-BACK-PHR | 21 |
| BBP2 | BGIBMGA005139 | Gene014633 | 535 | 59037 | 5.44 | cyto/m | BTB-BACK-PHR | 25 | |
|
| |||||||||
| BTB-BACK-Kelch | BBK1 | BGIBMGA007372 | Gene001129 | 612 | 65335 | 5.09 | cyto | BTB-BACK-Kelch | 3 |
| BBK2 | BGIBMGA006093 | Gene001685 | 646 | 71864 | 8.00 | nucl | BTB-BACK-Kelch | 4 | |
| BBK3 | BGIBMGA011859 | Gene006441 | 628 | 71412 | 7.44 | nucl | BTB-BACK-Kelch | 11 | |
| BBK4 | BGIBMGA010339 | Gene007321 | 686 | 77416 | 5.23 | cyto/m | BTB-BACK-Kelch | 12 | |
| BBK5 | BGIBMGA004699 | Gene012782 | 524 | 58082 | 8.53 | nucl | BTB/BACK/Kelch | 22 | |
| BBK6 | BGIBMGA011506 | Gene013128 | 611 | 66894 | 5.90 | cyto | BTB/BACK/Kelch | 23 | |
|
| |||||||||
| BTB-Kelch | KBTB | BGIBMGA012932 | Gene009636 | 798 | 90009 | 6.23 | cyto | BTB-Kelch | 16 |
|
| |||||||||
| BTB-ZF (C2H2) | ZBTB1 | BGIBMGA002080 | Gene000027 | 370 | 42226 | 6.44 | nucl | BTB-C2H2 zinc finger | 1 |
| ZBTB2 | BGIBMGA002948 | Gene002051 | 269 | 30496 | 5.41 | nucl | BTB-C2H2 zinc finger | 4 | |
| ZBTB3 | BGIBMGA003766 | Gene002371 | 914 | 99826 | 8.50 | nucl | BTB-C2H2 zinc finger | 4 | |
| ZBTB4 | BGIBMGA002702 | Gene002544 | 563 | 62824 | 6.79 | nucl | BTB-C2H2 zinc finger | 5 | |
| ZBTB5 | BGIBMGA006492 | Gene003412 | 269 | 30293 | 6.78 | nucl | BTB-C2H2 zinc finger | 6 | |
| ZBTB6 | BGIBMGA009907 | Gene004719 | 456 | 50728 | 7.74 | nucl | BTB-C2H2 zinc finger | 8 | |
| ZBTB7 | BGIBMGA012517 | Gene005005 | 581 | 65916 | 5.97 | nucl | BTB-C2H2 zinc finger | 9 | |
| ZBTB8 | BGIBMGA006736 | Gene005448 | 435 | 48049 | 6.02 | nucl | BTB-C2H2 zinc finger | 10 | |
| ZBTB9 | BGIBMGA007530 | Gene009012 | 535 | 59636 | 6.01 | nucl | BTB-C2H2 zinc finger | 15 | |
| ZBTB10 | BGIBMGA010850 | Gene012859 | 705 | 77364 | 6.55 | nucl | BTB-C2H2 zinc finger | 22 | |
| ZBTB11 | BGIBMGA000316 | Gene012612 | 464 | 51255 | 6.25 | nucl | BTB-C2H2 zinc finger | 22 | |
| ZBTB12 | BGIBMGA000376 | No | 511 | 58344 | 9.08 | nucl | BTB-C2H2 zinc finger | 22 | |
| ZBTB13 | No | Gene015971 | 292 | 33373 | 9.27 | nucl | BTB-C2H2 zinc finger | Unknown | |
|
| |||||||||
| BTB-ZF (FLYWCH) | ZBTB14 | BGIBMGA005898 | Gene007418 | 299 | 33425 | 8.78 | cyto | BTB-FLYWCH zinc finger | 12 |
| ZBTB15 | BGIBMGA005879 | Gene007419 | 338 | 38692 | 4.90 | cyto | BTB-FLYWCH zinc finger | 12 | |
| ZBTB16 | No | Gene007155 | 389 | 44521 | 6.32 | cyto | BTB-FLYWCH zinc finger | 12 | |
|
| |||||||||
| BTB-HTH | HBTB1 | BGIBMGA008942 | Gene001524 | 503 | 56414 | 8.67 | nucl | BTB-HTH DNA binding motif | 3 |
| HBTB2 | BGIBMGA001210 | Gene007758 | 516 | 57152 | 8.61 | nucl | BTB-HTH DNA binding motif | 13 | |
|
| |||||||||
| MATH-BTB | MBTB | BGIBMGA012495 | Gene005056 | 434 | 48266 | 7.07 | nucl | MATH-BTB | 9 |
Note: cyto: cytosol; nucl: nuclear; mito: mitochondrion; m: mitochondrion.