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| Approved Symbol | Approved Name | Previous Symbols | Aliases | Chromosome | Accession Numbers | RefSeq IDs |
| CLDN1 | claudin 1 | | SEMP1, ILVASC | 3q28-q29 | AF101051 | NM_021101 |
| CLDN2 | claudin 2 | | | Xq22.3-q23 | AK075405 | |
| CLDN3 | claudin 3 | C7orf1, CPETR2 | RVP1, CPE-R2, HRVP1 | 7q11 | AF007189 | NM_001306 |
| CLDN4 | claudin 4 | CPETR, CPETR1 | CPE-R, WBSCR8, hCPE-R | 7q11.23 | AB000712 | NM_001305 |
| CLDN5 | claudin 5 | AWAL, TMVCF | CPETRL1, BEC1 | 22q11.21 | AF000959 | NM_003277 |
| CLDN6 | claudin 6 | | | 16p13.3 | AJ249735 | NM_021195 |
| CLDN7 | claudin 7 | CEPTRL2, CPETRL2 | Hs.84359 | 17 | AJ011497 | NM_001307 |
| CLDN8 | claudin 8 | | | 21q22.1 | AJ250711 | NM_199328 |
| CLDN9 | claudin 9 | | | 16p13.3 | AJ130941 | NM_020982 |
| CLDN10 | claudin 10 | | OSP-L, CPETRL3 | 13q31-q34 | U89916 | NM_006984 |
| CLDN11 | claudin 11 | OTM | OSP | 3q26.2-q26.3 | AF068863 | NM_005602 |
| CLDN12 | claudin 12 | | | 7q21 | AJ250713 | NM_012129 |
| CLDN14 | claudin 14 | DFNB29 | | 21q22.3 | AJ132445 | NM_144492 |
| CLDN15 | claudin 15 | | | 7q22 | AJ245738 | NM_014343 |
| CLDN16 | claudin 16 | | PCLN1, HOMG3 | 3q | AF152101 | NM_006580 |
| CLDN17 | claudin 17 | | MGC126552, MGC126554 | 21q22.1 | AJ250712 | NM_012131 |
| CLDN18 | claudin 18 | SFTPJ | | 3q | AF221069, AY102073 | NM_001002026 |
| CLDN19 | claudin 19 | | | 1p34.2 | AK096063 | NM_148960 |
| CLDN20 | claudin 20 | | | 6q25 | BC020838 | NM_001001346 |
| CLDN21 | claudin 21 | | | 4q35.1 | | XM_210581 |
| CLDN22 | claudin 22 | | | 4pter-qter | AK098064 | |
| CLDN23 | claudin 23 | | CLDNL | 8p23.1 | AK123547 | NM_194284 |