Gadus morhua (Atlantic cod): 115532593
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Entry
115532593 CDS
T10832
Symbol
celsr1
Name
(RefSeq) LOW QUALITY PROTEIN: cadherin EGF LAG seven-pass G-type receptor 1
KO
K04600
cadherin EGF LAG seven-pass G-type receptor 1
Organism
gmh Gadus morhua (Atlantic cod)
Brite
KEGG Orthology (KO) [BR:
gmh00001
]
09180 Brite Hierarchies
09181 Protein families: metabolism
01002 Peptidases and inhibitors [BR:
gmh01002
]
115532593 (celsr1)
09183 Protein families: signaling and cellular processes
04030 G protein-coupled receptors [BR:
gmh04030
]
115532593 (celsr1)
04515 Cell adhesion molecules [BR:
gmh04515
]
115532593 (celsr1)
Peptidases and inhibitors [BR:
gmh01002
]
Mixed peptidases
Family P2
115532593 (celsr1)
G protein-coupled receptors [BR:
gmh04030
]
Adhesion receptor family
Cadherin EGF LAG (CELSR)
115532593 (celsr1)
Cell adhesion molecules [BR:
gmh04515
]
Cadherins
Major cadherins
115532593 (celsr1)
BRITE hierarchy
SSDB
Ortholog
Paralog
Gene cluster
GFIT
Motif
Pfam:
Cadherin
7tm_2
GAIN
Cadherin_CELSR2_9th
Laminin_G_2
Laminin_G_1
GPS
EGF
EGF_laminin
Fibulin_C
EGF_TEN
Dicty_CAR
hEGF
EGF_3
Acyl_transf_3
Motif
Other DBs
NCBI-GeneID:
115532593
NCBI-ProteinID:
XP_030198318
Ensembl:
ENSGMOG00000001265
LinkDB
All DBs
Position
19:14500091..14594616
Genome browser
AA seq
3151 aa
AA seq
DB search
MEVLPVCLWLRVCVLLTAPLLLRGLELDLSENLRPGALLADLSLGPGPGWTYTVNRTLSP
AVTHSWFRVDSRTGVIRLSRRVDCARALRPPQSVYFSTTSSTSGDVILTRFNVHVHGQDC
FIKYRRKSAASREKPDFRIAQVMTLGGETPCWAAGKVLVNVTQLLPAFARDVPLEDAVCT
VDGLHAVFLRGNLLLAEDFCRAPREQSAQVGLRCLLQTHLNARGVSRGVDVPAHGVSVPA
RGVSVRLVLRVVSAPVPVGEHGYLSLESDREMYNDPQQQQHRDHPRGRRSVNNAPTFKMP
NYQLSLAENQEAGTSVITPRATDPDEGEAGRLEYVMESMFDSRSNDQFTIDPRSGTISTL
RPLDREVKDTHVFKVTALDHGTPRRSATTYVTVTVSDTNDHSPVFEQTEYRDSIRENVEV
GFEVMTIRATDGDASANANMVYKILNADDNPAFEIDARNGLVRVRERPDREARDRYTLIV
EANDQGRDPGPRSATATVHIAVDDENDNYPQFAEKRYVVRVREDVAVNTKVIRVEATDRD
QGNNAKVHYSIISGNVKGQFYIHAPTGVIDIINPLDFESIREYNLRIKAQDGGRPPLING
TGMVVVQVVDVNDNAPMFVSTPFQASVLENVAVGYSLLHVQAIDADSGENARLEYRLADT
PPGFPLAINNSTGWVTACGELDRESTEFYKFRVEARDHGVPAMSSAASVSVTVLDVNDNT
PAFTERRYELKINEDAVVGTSVLTLTAVDRDVNSVVTYQISSGNTRNRFAITSQSGGGLV
TLALPLDYQQERQYVLTVTASDGTRADTASVSINVTDANTHRPVFQSASYQVFLSEDLAV
GYVVMVIAASDEDTGENARITYLMEEKVPQFAVHPDTGAITTQMAVDYEDLSSYTLAIVA
RDNGIPQKMDTAYVEIIVVDANDNAPLFPRDVYQGSVFEDAPVYTSVLQISAMDKDSGSN
GRLSYTFAGGDDGDGDFFIEPYSGIIRSARKLDRENVPSYSLRAFAVDKGVPPLRAAVAV
HVAVLDINDNAPVFDRDVLVVRVEENRPVGSVVARIGATDPDEGTNAQIMYQIVEGNSPE
FFTLDIFNGDLTALVELDYESRREYVIVVQATSAPLVSRATVHVQLVDVNDNVPVLQDFE
IIFNNYITNKSNSFPSGVIGAVPARDPDVDDELRFRFESGNELNLLDLNNRTGELRLSKD
LDNDRPLEAAMTISVSDGLHKVVAVCTLRVAIITDDMLTNSITVRLENMSQERFLSRLLT
LFLEGVAAVLSTNRDAVFVFNIQNDTDVHGSILNVTFSALQPGGAPGGGRYFPSEDLQEH
IYLNRTLLRHISSQQVLPFDDNICLREPCENYMKCVSVLKFDSSPPFISSDTVLFRPIHP
INGLRCRCPAGFTGDYCETEIDLCYSSPCRNNARCHSREGGYTCECPEDFTGDHCEVNVN
SGRCVPGVCKNGGECANRLMGGVMCHCPSGEYEKPYCEMTTRSFPGQSFITFRGLRQRFH
FTVSFRFATRERNALLLYNGRFNEKHDFIAVEIVNEQIQLTFSGGETKTTVSPFLHGGVS
DGQWHSVQLHYYNKDGGSLLDSTGALRLPLYSAWLELYQKEPNIGRLGIPHGPSGEKVAV
VAVDDCDIAMAIRFGNQIGNYSCAAQGTQTGQKKSLDLTGPLLLGGVPNLPEDFPVLNRD
FVGCMGNLTVDSKPTDMASFIANNGTNAGCPAKKNFCSREVCQNGGECVNLWNTHGCTCP
TGYGGKNCEQVMPAPQFYDGEALVSWSEPDVTIAVPWYLGLMFRTRQPGGTLMQANAGRS
STINLMVSGQQVRLEVWFQDELVASLAFAQVRVSDGEWHHLLVELSSFKDGQDIKYMASV
SLDYGMYQRSVEIGNELPGLKVKTLFVGGLLGEGNHVTQGFTGCIQGVRMGETSTNVLNV
NMAQGLKIRVEEGCDLADPCDSNICPENSHCSDDWSTHTCVCDLGYFGKECLDPCQLNPC
EHVSTCVRKPSSSHGYTCECGTSYYGQYCQNKVEKPCARGWWGSPMCGPCDCDTTRGFNP
NCNKTTGECRCKDNYYRPVDEDSCYPCDCFPIGSESRTCDPRTGQCPCKGGVIGRQCNRC
DNPFAEVTAAGCQVVYEGCPKAFDAGIWWPKTQFGRPAAINCPKGSIGTAVRHCNDEKGW
LPPELFNCTTTSFSSLKKMNEELRRNESVMDGARSKAIVRLLHGATNNTQRYYGNDIKTG
NELLVRVLQYESRQAGFDLTATRDADFNENLVRAGSALLDPGTKEHWEHWEQIQRGEGGV
ALLLHSFQDYAGTLAQNVRKTYLKPFTIVTDNMILTVDYLDTSDPDRTTFPRFQDIQEAY
SPELGSSINFPEFNPHSPEPPEEPFPPSDAQTDAPEGEEPTAANRKRRHAEPAAHLPVAV
VIVYKSIGQLLPERYDPDRRSLRIPNRPVINSAIVSATLHSEGLPLPLPLEPPVTVRLRL
LETEERTKPVCVFWNHSLLDGTGAWSSKGCEMLDRNXTHISCQCNHMTSFALLMDISKRE
HGEVLPLRIVTYTTVSVSLLLLLLTFLLLCLLHRLRSNLTAIHRNLVAALFFSLLVFLLG
INQTDNPFVCTVIAILLHYFYMCTFAWMFVEGLHIYRMLTEVRNINHGHMRFYYAIGWGF
PAIITGLAVGLDPQGYGNPDFCWLSVHDTLIWSFAGPISLVVLVNIVIFVFAAKASCGRR
QKAMEKSGAIPALRMAFLLLLLISATWLLGLLAVNSDVMTFHYMFAVFSCLQGVFIFFFY
VIFNREVRKNLKSVFTGKKMSADETSTTKASLLTRSLNCSNTYGEDXGVFRSGLGESSVS
LDSTLRSAKSRASYLAHARSREEVKAGVSSGLVKGHTDLDGPLFHRNPNKGDDSDSDSEL
SLDEHSSSYASSHSSDSEDDGHQAKPQWNNERQPVHSTPKGAVDAVANHVRPYWPVDGTT
ASDSEEPCGAGELRVETRVNVELHPENKLNHRGEGGRERESEAPSEREREEAPAGVPGKD
TAPPGQTNSNQQPEQRKGILKNKISYPPPLSDKNMKNRLREKLSDYHSPTIPTATPAPPN
NNNNKPTPSPVSPVTPVAPTATAPPAVHGVGNRGNHTTPPVKPPVAPRPLLVAGTTAIHR
ETNGGVAMHVKVNGGGVDESDSEKTQTSLPL
NT seq
9456 nt
NT seq
+upstream
nt +downstream
nt
atggaggtcctacctgtgtgtttgtggctccgggtgtgtgtcctcctcaccgcgccgctg
ctgctgaggggtctggagctggacctctccgagaacctccggcccggagccctcctggcc
gacctctccctcggtcccggtcccggttggacttacacagtgaaccggactttatccccc
gcggtcacccacagctggttccgagtggactcgcgcaccggggtcatccggctgtcccgg
agggtggattgcgcgcgcgcgttacgacccccgcagagcgtgtacttcagtaccacctcg
agcacgtccggagacgtgatcctgacccggttcaacgtgcacgtgcacggccaggactgc
ttcatcaagtaccggaggaagagcgcggcgtcccgtgagaagcccgactttcgcatcgcg
caggtcatgaccctcggaggggagaccccctgctgggccgcaggtaaagtgctcgtgaat
gtcacccaacttttgcccgcctttgcgcgagacgtcccgttagaggacgccgtgtgtacc
gttgacgggctgcacgcggttttcttgcgagggaacttattgctggccgaagacttttgc
cgcgcaccgcgcgagcagagcgcgcaggtgggtctgcggtgcttgctgcagacccacttg
aatgcgcgcggcgtgtccaggggtgtggacgtgccagcgcacggggtttccgttccagcg
cgcggcgtgtccgtgcgcttggtcttgcgtgttgtgtcagcgcccgtgccagtgggagag
catggatatttatctttagagtctgatcgcgagatgtacaatgacccacaacaacaacaa
caccgagaccacccgcggggcaggaggagcgtcaacaacgctcctacgttcaagatgccc
aactaccagctgtccctggcggagaaccaggaggcgggcacgtcggtcatcacgccgcgg
gccacggaccccgatgagggcgaggcgggccggctggagtacgtgatggagtcgatgttc
gacagccgctccaacgaccagttcaccatcgacccccgcagcggcaccatcagcacgctg
cgcccgctggaccgcgaggtcaaggacacgcacgtgttcaaggtcacagcgctggaccac
ggcaccccgcggcgctcggccaccacctacgtcacggtgaccgtgtccgacaccaacgac
cacagcccggtgttcgagcagacggagtaccgcgacagcatccgggagaacgtggaggtg
ggcttcgaggtgatgaccatccgcgccacggacggcgacgcctcggccaacgccaacatg
gtgtacaagatcctcaacgccgacgacaacccggccttcgagatcgacgcccgcaacggc
ctggtgcgggtccgcgagcggcccgaccgcgaggcgcgcgaccgctacacgctcatcgtg
gaggccaacgaccagggccgcgacccgggcccgcgcagcgccacggccaccgtgcacatc
gccgtggacgacgagaacgacaactacccgcagttcgccgagaagcgctacgtggtgcgc
gtgcgcgaggacgtggcggtgaacaccaaggtgatccgcgtggaggccacggaccgcgac
cagggcaacaacgccaaggtgcactacagcatcatcagcggcaacgtcaaggggcagttc
tacatccacgcgcccaccggcgtcatcgacatcatcaaccccctggacttcgagagcatc
cgggagtacaacctgcgcatcaaggcgcaggacgggggccggccgccgctcatcaacggc
acggggatggtggtggtgcaagtggtggacgtcaacgacaacgcgcccatgttcgtcagc
acgcccttccaggcctcggtgctggagaacgtggcggtggggtactcgctgctacacgtg
caggccatcgacgccgactcgggcgagaacgcccgcctggagtaccggctggcggacacg
ccgccgggcttcccgctcgccatcaacaacagcacgggctgggtgacggcgtgcggcgag
ctggaccgcgagtcgaccgagttctacaagttccgcgtggaggcgcgggaccacggcgtg
cccgccatgtcgtcggcggcgagcgtgagcgtgacggtgctggacgtcaacgacaacacg
ccggccttcacggagcggcggtacgagctgaagatcaacgaggacgcggtggtgggcacc
agcgtgctcacgctgacggcagtggaccgcgacgtcaacagcgtggtcacctaccagatc
tccagcgggaacacgcgcaaccgcttcgccatcaccagccagagcggcggcgggctggtg
accctggcgctgccgctggactaccagcaggagcggcagtacgtgctgacggtgacggcg
tcggacggcacgcgcgccgacacggccagcgtgtccatcaacgtgacggacgccaacacg
caccggcccgtgttccagagcgccagctaccaggtgttcctcagcgaggacctagcggtg
ggctacgtcgtcatggtgatcgccgcctccgacgaggacacgggcgagaacgcccgcatc
acctacctgatggaggagaaggtgccccagttcgcggtgcacccggacacgggcgccatc
accacgcagatggcggtggactacgaggacctgtcgtcctacacgctggccatcgtcgcc
cgcgacaacggcatcccgcagaagatggacacggcgtacgtggagatcatcgtggtggac
gccaacgacaacgcgccgctgttcccccgcgacgtctaccagggctcggtgttcgaggac
gcgcccgtctacaccagcgtcctgcagatctccgccatggacaaggactcgggctccaac
gggcggctgagctacacctttgcgggcggcgacgacggcgacggcgacttcttcatcgag
ccgtactccggcatcatccgctcggcgcgcaagctggaccgcgagaacgtgccttcctac
agcctgagggccttcgccgtggacaagggcgtccccccgctgcgggcggccgtggccgtg
cacgtggccgtgctggacatcaacgacaacgcccccgtgttcgaccgcgacgtgctggtg
gtccgggtggaggagaaccggcccgtggggtcggtggtggcgaggatcggcgccaccgac
cccgacgagggcaccaacgcgcagatcatgtaccagatcgtggagggcaacagccccgag
ttcttcacgctggacatcttcaacggggacctgacggcgctggtggagctggactatgag
agccggcgggagtacgtgatcgtggtgcaggccacctcggcgccgctggtcagccgggcc
acggtgcacgtgcagctggtggacgtcaacgacaacgtgccggtgctgcaggacttcgag
atcatcttcaacaactacatcaccaacaagtccaacagcttcccgtcgggggtgatcggg
gcggtccccgcgcgggaccccgacgtggacgacgagctgaggttcaggttcgagtcgggg
aacgagctgaacctcctggatctgaacaaccggaccggggagctgcggctcagcaaggac
ctggacaacgaccggccgctggaggccgccatgaccatctccgtctcagacgggctccac
aaggtggtggccgtgtgcacgctgcgcgtcgccatcatcaccgacgacatgttgaccaac
agcatcaccgtgcgcctggagaacatgtcccaggagcgcttcctgtcccgcctcctcacc
ctcttcctggagggcgtggccgccgtgctctccaccaatcgggacgcggtgttcgtgttc
aacatccagaacgacacggacgtgcacggctccatcctcaacgtgaccttctccgccctt
cagcccggcggggcccccggcggggggcggtacttcccctctgaggacctacaggagcac
atctacctgaaccgcacgctgctgaggcacatctcctcccagcaggtgctgccgttcgac
gacaacatctgcctgcgggagccgtgcgagaactacatgaagtgcgtgtcggtgctgaag
ttcgacagctcgccgcccttcatctcgtcggacacggtgctcttccggcccatccacccc
atcaacggcctgcgctgccgctgccccgccggcttcaccggggactactgcgagacggag
atcgacctgtgctactcctcgccctgccgcaacaacgcccgctgccacagccgcgagggg
ggctacacctgcgagtgcccggaagacttcaccggtgaccactgcgaggtgaacgtgaac
tcgggccgctgcgtgccgggcgtgtgtaagaacggcggggagtgcgccaaccgactgatg
ggcggggtcatgtgccactgcccgtcgggggagtacgagaagccctactgcgagatgacc
acgcgcagcttcccaggccagtccttcatcaccttcaggggcctccgccaaaggttccac
ttcaccgtctccttcaggtttgcgaccagagagaggaatgctctgctgctctacaacgga
aggttcaacgagaagcacgacttcatcgccgtggagatcgtcaacgagcagatccagctc
accttctctggaggagagacgaagaccacggtgtctcccttccttcacggtggagtcagc
gatggccaatggcattctgtccagctccattactacaacaaggatggggggagtctgctg
gactccacaggggccctgcgtctcccgctctatagcgcctggctggagctctatcagaag
gagcccaacatcggccggctgggcatcccccacggcccctcgggcgagaaggtggccgtg
gtcgccgtggacgactgcgacatcgccatggcgatccgcttcggcaaccagatcgggaac
tactcgtgcgccgcgcagggaacccagacgggacagaagaaatctctggacctgaccggg
ccactgttgctaggcggagtcccaaaccttcctgaagacttcccggtcctgaaccgagac
tttgtgggctgcatggggaacctcaccgtcgacagcaagcccactgacatggctagcttc
atcgctaacaacggcaccaacgcaggctgtccggccaagaagaacttctgctcgcgggaa
gtgtgtcagaacggaggggagtgcgtgaacctctggaacacccatgggtgcacctgcccc
accggatacggcgggaagaactgcgaacaggtgatgccggccccccagttctacgacggc
gaggcgctggtgtcctggagcgagccggacgtcaccatcgccgtgccctggtacctgggc
ctgatgttccgcacccggcagccagggggcactctgatgcaggccaacgccgggcgctcc
tccaccatcaacctcatggtgagtggccagcaggtgcgtctggaggtgtggtttcaggac
gaactggtggcgtcgttagccttcgcgcaggtgcgtgtcagcgacggcgagtggcaccac
ctgctggtggagctgagcagcttcaaggacggccaggacatcaagtacatggcgtcggtg
tcgctggactacggcatgtaccagaggtcggtggagatcggtaacgagctgccggggctg
aaggtgaagactctgttcgtgggcggactcctgggagagggaaaccatgtgacccagggc
ttcaccggctgcatacagggtgtgcgtatgggcgagacctccaccaacgtgctgaacgtg
aacatggcccagggcctgaagatccgcgtggaggagggctgcgacctcgccgacccctgc
gactccaacatctgccccgagaacagccactgcagcgacgactggagcactcacacctgc
gtctgcgacctcgggtactttggtaaggagtgtctggacccctgccagctgaacccctgt
gagcacgtctccacctgcgtccgcaagcccagctcctctcacggctacacctgcgagtgt
ggaaccagctactacggccagtactgccagaacaaggtggagaagccgtgcgcccggggc
tggtgggggtcccccatgtgcggaccgtgtgactgcgacaccaccagggggttcaacccc
aactgcaacaagaccaccggagagtgccgctgcaaggacaactactaccgccccgtggac
gaggactcctgctacccgtgtgactgcttccccatcggctcagagtctcgaacctgcgac
ccccggaccgggcagtgcccctgtaagggcggggtcataggtcgccagtgcaaccgctgc
gacaaccccttcgccgaggtcacggccgcgggctgccaagtggtgtacgagggctgtccc
aaggccttcgacgctggcatctggtggcccaagacccagttcggacgtccagccgccatc
aactgtcccaaaggctccatcggcacggcggtccgtcactgtaacgatgagaagggctgg
ctccccccagagctcttcaactgcaccaccacctccttctccagcctcaagaaaatgaac
gaggagctgcggcgcaacgagtcggtgatggacggcgcccgctccaaggccatcgtccgc
ctgctgcacggcgccaccaacaacacgcagcgttactacggcaacgacatcaagacgggc
aacgagctgctggtgcgcgtgctgcagtacgagagccggcaggccgggttcgacctcacg
gccacgcgggacgccgacttcaacgagaacctggtgcgagcgggcagtgctctgctggac
cccgggaccaaggagcactgggagcactgggagcagatccagaggggcgaggggggcgtc
gccctgctgctgcacagcttccaggactacgccggcaccctggcccagaacgtccgcaag
acctacctgaagcccttcaccatcgtcacggacaacatgatcctgacggtggactacctc
gatacatccgacccggaccggaccaccttcccccgcttccaggacatccaggaggcgtac
tcccccgagctgggctcctccatcaacttccccgagttcaacccccacagcccggagccg
cccgaagagccattccctccctcggacgcccagaccgatgccccagagggggaggagcct
accgcggccaataggaagcgacgccacgccgaacccgctgcccacttgccggttgccgtg
gtgatcgtgtacaagtccattggacagctgctaccagagcgctacgaccctgatcgacga
agcctcaggataccgaaccggccggtcatcaactcggccatcgtgagcgccactctgcac
agcgagggcctgcccctgcccctccccctggagccgcccgtcactgtgaggctccgcctc
ctggagacagaggagaggaccaagcccgtgtgtgtcttctggaaccactccctcctggat
gggaccggggcctggtcgtctaaaggctgtgagatgctggacaggaacnnaacacacatc
agctgccagtgtaaccacatgaccagcttcgccttgctcatggacatctcaaagagagag
cacggggaggtgctgcccctgaggatcgtgacctacaccacggtgtcggtgtccctgctc
ctcctcctcctcaccttcctcctcctctgcctgctccaccggctgcgctccaacctcacc
gccatccaccgcaacctggtggcggcgctcttcttctccctgctcgtcttcctcctgggc
atcaaccagacggacaacccctttgtgtgcacggtgatagccatcctgctgcactacttc
tacatgtgcacgttcgcctggatgttcgtggaggggctgcacatctaccgcatgctgacc
gaggtccgcaacatcaaccacggacacatgcgcttctactacgccatcggctggggcttc
cccgccatcatcaccgggctagccgtcggtctggatcctcagggctacgggaacccagac
ttctgctggctgtcggtccacgacaccctcatatggagctttgcaggacccatctccctg
gtcgtcctggtgaatatagtgatctttgtatttgctgccaaggcgtcttgcggtcgcaga
cagaaggccatggagaagtctggagccatccctgctcttcggatggccttcctgctgctg
ctgctcatcagcgccacctggctgctggggctgctggccgtcaacagcgacgtcatgacc
ttccactacatgttcgccgtcttcagctgtctgcagggagtgttcatcttcttcttctac
gtgatcttcaaccgcgaggtgaggaagaacctgaagagcgtcttcaccgggaagaagatg
tctgctgacgagacctccaccaccaaggcctccctgctgacacgctccctgaactgcagc
aacacctatggggaggacnggggagtgttccgctcggggctgggggagtcaagcgtgtct
ctggacagcactctcaggtcagccaagagccgcgccagctacctggctcacgcacgcagc
agggaggaggtcaaggcaggagtctcctcaggtctggtgaagggacacactgacctggat
ggacccctcttccacaggaaccccaacaagggcgacgactctgactcggacagcgagctg
tcgctggacgagcacagctcctcctatgcctcgtcccactcctcggacagcgaggacgac
gggcaccaggccaagccccagtggaacaacgagaggcagcccgtccacagcacccccaag
ggggcagtggacgcggtggccaatcacgtgcgtccttactggcctgtggacggcaccacg
gccagcgacagcgaggagccctgcggcgcgggggagctgcgggtggagacccgggtgaac
gtggagctgcaccccgagaacaagctgaaccacaggggggagggggggagggagagggag
agcgaggcgccgtcggagcgggagagagaggaggcgccggcgggcgtcccggggaaggac
acggccccccccggacagaccaacagcaaccagcagccggagcagaggaaggggatcctg
aagaacaagatcagctaccctccccctctgagcgacaagaacatgaagaaccggctccgc
gagaagctcagtgactaccacagccccaccatccccacggcaacgcccgcaccccccaac
aacaacaacaacaagcccacgccctcccccgtctcccccgtcacccccgtcgcccccacc
gccaccgcccccccggccgtccacggcgtcggtaaccgcggcaaccacaccacgccgccg
gtgaagccgccggtggccccgcggccgctgctggtcgccgggacgaccgccatccaccgc
gagaccaacgggggcgtggccatgcacgtgaaggtcaacggggggggcgtcgacgagtcg
gactccgagaagacgcagaccagcctgcccctctga
DBGET
integrated database retrieval system
