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Function：
Reformat a FASTA sequence with customized desires.
Input：
Upload FASTA format sequences or paste the FASTA format sequences in the window.
Parameters：
①Number of characters in each line: Designate the number of bases or amino acids in each lines
②Showed as lower-case: Designate the exported sequence in lower-case. If not click, this sequence will be in upper-case.
③Remove descriptions: if chosen, the exported sequence will not contain descriptions in the description line.
④Reverse complement: Export a complementary sequence.
Output：
Downloadable FASTA files of sequences with designated format.
For the input sequence：
>CYP2D6 cytochrome P450, family 2, subfamily D, polypeptide 6
MGLEALVPLAVIVAIFLLLVDLMHRRQRWAARYPPGPLPLPGLGNLLHVDFQNTPYCFDQ
LRRRFGDVFSLQLAWTPVVVLNGLAAVREALVTHGEDTADRPPVPITQILGFGPRSQGVF
LARYGPAWREQRRFSVSTLRNLGLGKKSLEQWVTEEAACLCAAFANHSGRPFRPNGLLDK
AVSNVIASLTCGRRFEYDDPRFLRLLDLAQEGLKEESGFLREVLNAVPVLLHIPALAGKV
LRFQKAFLTQLDELLTEHRMTWDPAQPPRDLTEAFLAEMEKAKGNPESSFNDENLRIVVA
DLFSAGMVTTSTTLAWGLLLMILHPDVQRRVQQEIDDVIGQVRRPEMGDQAHMPYTTAVI
HEVQRFGDIVPLGVTHMTSRDIEVQGFRIPKGTTLITNLSSVLKDEAVWEKPFRFHPEHF
LDAQGHFVKPEAFLPFSAGRRACLGEPLARMELFLFFTSLLQHFSFSVPTGQPRPSHHGV
FAFLVSPSPYELCAVPR
Results of output：
>CYP2D6 mglealvplavivaiflllvdlmhrrqrwaaryppgplplpglgnllhvdfqntpycfdqlrrrfgdvfslqlawtpvvv lnglaavrealvthgedtadrppvpitqilgfgprsqgvflarygpawreqrrfsvstlrnlglgkksleqwvteeaacl caafanhsgrpfrpnglldkavsnviasltcgrrfeyddprflrlldlaqeglkeesgflrevlnavpvllhipalagkv lrfqkafltqldelltehrmtwdpaqpprdlteaflaemekakgnpessfndenlrivvadlfsagmvttsttlawglll milhpdvqrrvqqeiddvigqvrrpemgdqahmpyttavihevqrfgdivplgvthmtsrdievqgfripkgttlitnls svlkdeavwekpfrfhpehfldaqghfvkpeaflpfsagrraclgeplarmelflfftsllqhfsfsvptgqprpshhgv faflvspspyelcavpr