Etheostoma cragini (Arkansas darter): 117953729
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Entry
117953729 CDS
T07493
Symbol
chd7
Name
(RefSeq) chromodomain-helicase-DNA-binding protein 7
KO
K14437
chromodomain-helicase-DNA-binding protein 7 [EC:5.6.2.-]
Organism
ecra
Etheostoma cragini (Arkansas darter)
Brite
KEGG Orthology (KO) [BR:
ecra00001
]
09180 Brite Hierarchies
09182 Protein families: genetic information processing
03036 Chromosome and associated proteins [BR:
ecra03036
]
117953729 (chd7)
Chromosome and associated proteins [BR:
ecra03036
]
Eukaryotic type
Chromatin remodeling factors
Other chromatin remodeling factors
117953729 (chd7)
BRITE hierarchy
SSDB
Ortholog
Paralog
Gene cluster
GFIT
Motif
Pfam:
SNF2-rel_dom
HTH_CHD6-9
Helicase_C
BRK
Chromo
ResIII
DEAD
HTH_CHD1_Hrp3
HDA2-3
MUN
Motif
Other DBs
NCBI-GeneID:
117953729
NCBI-ProteinID:
XP_034742885
LinkDB
All DBs
Position
12:complement(3916941..3985848)
Genome browser
AA seq
3315 aa
AA seq
DB search
MADPGMLSLFGDDAGLFSDGLDGLGDCFPQTPAAAQSNPLAQQTNPSLNHEHQGNRGYHQ
GMIHSAGPGTGQPKLGQIYDHGPYTGYDQPGAPGGRMLSQNGPSQGPPNVNTAINGLASH
YHNNPVNSSNPLLGYPGDAGGGAGAGAVWGQQQQSRSAYQQAPAQPVGAPSQMGGYQMSQ
GNYGGMQGTPTPNAARMNQHYPSQSMAPPPAQDPSHYLGNVGMGGAQMRHTQPQSQPQGY
PNMGHTPRYPHSPSRQPPHPHQHQQGMGGFGGGQYPGYQAQYGAMGPGMVPNSNANVNAN
TSQAMGPGQLGQRFNQGSGPAAGPQGQRYPPGPPQPHQTLSAPMQQQAGQQGQPMHPQNL
PQAQNQAQSLLAPPAQGSYPSPSSMSPMRVLGTPTPPPQQVRPPSAGLAGPSEVAGYPAL
HPPHNALAHPQRTPQISLSAPQHQQPHNMPPNAGQMYPGMGPQRAPQMGPNRPQQGPHEA
PVSQGGDQCLLQASRSGQPTPMGFQVQTLGQHGVPVLNQGLAPPAQNAPTQHTHMPPQPH
HLQNTPPAPNQASHPWAPPPSASHPLSSPPLTPQKVPHVQHSPTDPSSDASMMVADRPTV
GAGAPGQPISKEQPSDQETKPKKKRKKKAKVVDGEKEEGGKNAAREDIKSEFPETGSDAG
EQATSTGIVEGSAPLVEEKKKRKKKPKEKAEGKEPKEPKTPKTPKTPKTPKEPKEPKEKK
PKSSTPKTKTPKKTSSKKVESEGGASAAKKDSKRKRETSVNEDVEVKSPPPSPPEDDDDD
GVQKRRSSRQVKRKRYTEDLEFRISDEDNSGDDSPTPKSPSSSSHQQDVAEAEGPVVEKI
MGKRITKKTLESGEEVEVEEFYVKFKGFSYLHCRWADLEELEKDKRIHQKIKRYRAKQQL
NTFITEMDDEPFNPDYVEVDRVLDISESTDENGETVTLYLVKWCSLPYEDSTWELKADID
QSKIEEYEHIAARTPNTKRVDRPPAADWKKLESSREYRNNNALREYQLEGLNWLTFNWFN
SRNCILADEMGLGKTIQSITFLYETYLKGVEGPFLVIAPLSTIPNWEREFRTWTELNAVV
YHGSQASRKTIQAYEMYYRDAQGKIIKGAYRFHAVITTFEMILTDCPELRSVPWRCVVID
EAHRLKNRNCKLLEGLKMMDMEHKVLLTGTPLQNTVEELFSLLNFLEPERFLSEQTFMTE
FGDLKTEEQVQKLQGILKPMMLRRLKEDVEKNLAPKEETIIEVELTNIQKKYYRAILEKN
FSFLSKGGAGGGGGGGSGSGGGGGGVPNLLNTMMELRKCCNHPYLINGAEEKIAEDFRDS
HGGRADMPDMALQAMVQAAGKLVLIDKLLPKLKAGGHRVLVFSQMVRCLDILEDYLIQKR
YPYERIDGRVRGNLRQAAIDRFSRPDSDRFVFLLCTRAGGLGINLTAADTCIIFDSDWNP
QNDLQAQARCHRIGQSKAVKIYRLITRNSYEREMFDKASLKLGLDKAVLQSMSGRENANS
GVQQLSKKEIEDLLRKGAYGALMDEEDEGSKFCEEDIDQILQRRTHTITIESEGKGSTFA
KASFVAAGNRTDISLEDPDFWQKWAKKAELDLDAMNGRNTLVIDTPRVRKQTRHFSSVKE
DEMLEFSELESEDDEPSKPSSKPRRPQDKTQGYPRSECFRVEKNLLVYGWGRWSDILAHG
RFKRPLKEADVEKICRALLAYCLLHYRGDENIKSFIWDLITPSEDGTTKTLTNHSGLSTP
VPRGRKGKKGKPTAPPPQTPRADWLASCNPDHLLQEDSYKRHLKHHCNKVLLRVRMLYYL
RQEVIGDQAERTLEGSDASELDIWIPQPFHAEVPADWWDSEADKSLLIGVFKHGYEKYNS
MRADPALCFLERVGMPDAKAIAAEQRGSDMMADGVEGEDEDPEYKPLRMPFKDEMDDFTN
SPLDDTVEGEAEAKSGENGQSVLGGASGSNERLYWPAASALTARLRRLITAYQRSNRREQ
LRQEALNRPDGRRRRRREFLPAIGMVTDTQGATYIQDGAGVFLTEGSQYLAKGSSYFAKG
GQFMPEASPVMTASSLMTDGTMYYKERRQRWTRREEADFYRVVSTFGVVFDTHRQKFDWA
QFRAFARLDKKTDESLEKYYYSFIAMCKRVCRMQVKTDTELPDPTLIIDPITEERASRTL
YRIELLRRIREQVLPHPLLSERLKLCQPSPDLPEWWECGRHDRDLILGASKHGVSRTDYH
ILNDPTLAFLDAHQRFTSQRGPGVSMGVQGEVTKAGMGATENIPAPLFTSAELASAAASA
QIAVDSAKEEGEGKEVKTEVKMEKGDANDIPCTKTETPDDEKEHEGEVREGKDEIAASPR
REVKKEEEEKEEGAQPKLEKEEHEKQKEEHEKQKEEQIGEGDKTSTSADDQDKDLTEEKS
LTLVDSLRDQREMTTELTEHPDSSPKAQLGHKTSEQGDREERENPESPKSPKSADTEKSP
EEEEEERMDEDDKSEKSSQAEASAASEQKNFDEESIASLSTSAQNETRDGFCPDDLPETS
ALQALQDRAFAFSFWPKDRVMINRMDNICEAVLKGKWPVNRRHIFDFPSNLLPGHGSTVT
PAAVATVTESPLQRRSLAELTMAGIHTPYSGSEDKTLSPQVHEDALSLTVPRQRRRRRRK
IEIEAERAAKRRNLMEMVAQLRESHSAAESQSQAIDLTKGMHHHHKASPSLAGFPSALVT
SPSLKAQMELLQQAPPSGHRANGALEADLPIMRRRRGRRKNVEGLELLFMGNKRTGADDG
DGTKVSGVEVVQDAARAHRPLSVPEQSPSARSLASGSLEEEEAAVSNKELGEWLRQHPTY
TMDMTGFTPKSEDLLLSQFSKPKQKRHRCRNPNKIDINTLTGDERVPVVNRRNGRKMGGA
MAPPMKELPRWLLENPEYSIAPDWTDIVKQSGFLPEAMFDRLLTGPVVREEGVRRRGRRP
KSEIAKAAAAAQAAAAAQAAQASLASAVSSAGGINPLLLNSLFGGMDLSSLQSLQSLQLA
AGLMAFPHTADPKHAAANAATASMMPLMLPGIGGLPNMAGLPNMFSLGGLFGGNLAAAAA
AASNSITDPSQNTNGTMERDGGESDEAVTTKRKRDRQEKEEGEDYEEMGDDEEEADGNEE
VKKKARKKEKGGKGGAEKSVNDVTGAQIPAADSTSINGDAAALLAAAGMSANSLAFNPFL
LSTMAPGLLYPSMFLPPGLGGLSLPGFPTASTLAELQNAMAGALGGNIVTTNPPKDEEEE
EDGDDDEEEEEEEKGGLKATGEEELEGGESDLAEEKENGAEEETRGNDSALEDGRMGEEE
EEEEAAASSQKDKSD
NT seq
9948 nt
NT seq
+upstream
nt +downstream
nt
atggcggatccagggatgttgagtctatttggggacgatgcagggctgttctcagatgga
ttagatggtttaggagactgctttcctcagacacctgccgctgcccagtccaacccctta
gcccagcagactaatccctctctgaaccatgagcaccaaggaaacaggggataccaccag
gggatgatccacagtgctgggcctggcacagggcagcctaaattggggcaaatatacgac
catggcccctacacaggctatgatcaacctggtgcccccggcggacgaatgctttcacag
aatggtcccagccaggggccaccgaacgtgaacacggccataaatggtttggcttcccac
taccataataacccagttaactctagcaaccccctccttggatacccaggtgatgctggg
gggggagcaggtgcgggtgcagtttggggccagcagcagcagagcagatcagcttatcaa
caggctccagcacaaccagtgggtgcccccagccagatgggaggctaccagatgtctcaa
ggcaactatggtgggatgcaaggcacaccaacacctaatgcggctcgcatgaaccaacac
tacccttcacagagcatggcaccccctcctgctcaggacccatctcactacctgggaaat
gttggaatggggggggcccagatgagacacacccagcctcagtcacaaccccagggctat
cccaacatgggccacacaccccgatacccacactccccctctcgacagcctccacacccc
caccagcaccaacagggtatgggggggtttgggggtggccaataccctggctatcaggcc
cagtacggagccatgggacctgggatggtccctaatagtaatgctaatgtcaatgctaac
accagccaggccatgggaccagggcagcttggccagaggttcaaccagggatcaggccca
gcagctgggccacaggggcagcgatacccccctggaccaccccagccacatcagaccctc
tctgccccgatgcagcagcaggcagggcagcagggccagcctatgcacccccagaatctg
ccccaggcccaaaaccaggcccagtccctccttgcccctccagctcagggatcttacccc
tccccctcttcgatgtcccccatgcgggttttgggaacaccaacacctcctccccaacaa
gtcagaccccctagcgcaggactagctggaccctcagaggttgcagggtacccagccctg
caccctccacataatgctctggcccatccacagagaactccccaaatttctttgtctgcc
ccccaacaccagcagccccacaacatgccccccaatgcaggacagatgtatcccggcatg
gggccgcagcgtgctccacaaatggggccaaataggccacagcaagggcctcatgaagca
ccagtcagccaggggggagatcagtgtctgctgcaggcctctcgaagtgggcagcccact
cctatgggtttccaggttcagactcttggtcaacatggagttcctgtcctaaaccagggc
ttggcaccaccagctcagaacgctccaacgcagcacacacacatgcccccccaaccccac
cacctgcagaacacaccccctgctcccaaccaggcctcccacccatgggcacctccgcct
tccgcttcccacccgctatcctcacccccgctcaccccacagaaagtgcctcacgtacag
cattcccccaccgacccgtcaagcgatgcctcaatgatggttgctgacaggccgacagtt
ggtgccggtgcccctggccagcctatcagcaaagagcagcccagcgaccaggagaccaag
ccaaaaaagaaaaggaagaagaaagcaaaagtagtggacggtgagaaagaagagggaggg
aagaacgcagcaagagaagacataaagtctgaatttcccgaaacaggaagtgatgcaggt
gaacaggctactagcacaggaattgtagagggaagtgcaccactggtggaggagaagaaa
aagcggaaaaagaaaccaaaggagaaggcagagggcaaggagcccaaagagcccaagacc
ccgaagacgcctaaaacacccaagactcccaaagagcccaaggagcccaaggagaagaaa
cccaagagctccacgcccaagaccaagacccccaagaaaaccagcagtaagaaggttgag
tctgagggtggggcaagcgctgctaagaaggattccaagaggaagagagagacgtcagtc
aacgaagatgtggaagtgaagtctccgcccccctcaccccctgaagacgatgacgacgac
ggtgtacagaagcgtcgttctagtcgtcaagtgaagaggaagaggtacactgaggatcta
gagtttcggatctcggatgaggataacagcggagacgactcaccgacacctaagtctcca
tcgtcctcatcacaccaacaggatgtggccgaggctgaggggcccgttgtggagaagatc
atgggcaaacgcatcacaaagaaaacgctggagtcgggggaggaagtggaggtggaggag
ttctatgtcaagttcaagggcttttcgtacctccactgtcgctgggcagacttggaggag
ctggagaaggacaagagaatacaccaaaagatcaagaggtatagggccaagcagcaactc
aacaccttcataaccgagatggacgatgagccttttaacccagactatgtggaggtggac
cgtgtcctggacatttcagagagcacagatgaaaacggagagacggtcaccttatatttg
gtgaaatggtgcagtctgccttacgaagattccacctgggagctgaaggctgacatcgac
cagtccaagatagaggaatatgagcacatcgcagcacgcacacccaacactaagagagtg
gatcggcctcctgcagccgactggaaaaagctggagagctccagggaatacaggaacaac
aacgcactcagggaataccagctagaaggcctcaactggctaaccttcaactggttcaac
tcacgtaactgtatcttggctgatgagatgggtctaggaaagaccatccaatccattaca
ttcctctatgagacttacctgaagggtgttgaggggccattcctggtcatcgccccactc
tccaccattcccaactgggagagagagttcaggacctggaccgagctcaacgccgtggtc
taccatggaagccaggccagtcgcaagaccatccaggcctatgaaatgtactacagagac
gcacagggtaagataataaagggagcgtaccgtttccacgcggtgataacaacctttgag
atgattctgacggactgtccggagctccgcagcgtgccatggcgttgtgtggtgatagac
gaagcccaccgactcaaaaaccgaaactgcaaactactggaaggactcaaaatgatggac
atggagcacaaagttctgttgacaggaacgcctctccagaacacagtggaggagctcttc
agcttactcaacttcctggagcctgagcgattcctgtctgaacagacatttatgacggaa
tttggagaccttaagactgaagaacaggttcagaaactgcagggcattctaaagcccatg
atgttgagaagactgaaggaggatgtggagaagaacctggcccctaaggaggagaccatc
attgaggtggagctgaccaacatacagaagaaatactatcgggccattctggagaagaat
ttctctttcctgtccaaaggaggtgcaggaggaggaggtggaggaggaagtgggagtggc
ggcggcggcggaggtgtccccaaccttctcaacaccatgatggagctgaggaaatgctgc
aaccacccctacctcataaatggagcggaagagaagatcgcagaggactttagggactcg
catggtggcagggcagacatgccggacatggcgctccaggccatggtccaggctgctggc
aagctggtgctcattgacaagctgctgcccaagctgaaggccggcggacacagagtcctg
gtgtttagtcagatggtccgctgtctggacatcctggaggactacctcatccagaaacga
tatccctatgaacgtatagacggcagagttcgtggaaacctgcggcaggcagccatcgac
cggttttccagacctgactcggaccgttttgtcttcctactgtgtacgagagctggggga
ctcggcatcaacttgactgcagcagatacttgcatcatctttgactctgactggaatcct
cagaatgacctgcaggcccaggccaggtgtcatcgtatcggccagtccaaggcagtcaag
atctaccgtctgatcacaaggaacagctatgagcgggagatgtttgacaaggccagtcta
aagctggggctcgacaaggccgtcctccagagcatgagtggacgagagaacgccaacagc
ggggtccagcagttgtccaagaaggagatcgaggacctgctgagaaagggagcgtacgga
gctctaatggatgaggaagatgaaggctcaaaattctgtgaggaagacattgaccagatc
ctccagagacgaacacacaccatcacaatagagtctgagggaaagggctctacctttgct
aaggctagctttgttgcagctggtaaccggacagacatttctctggaggatccagacttc
tggcagaaatgggccaaaaaggctgagcttgacctggatgccatgaatggacggaacaca
ctggtgattgacacaccgagggtgaggaagcaaacccgtcacttcagcagcgtcaaagag
gatgagatgctagagttctctgagctggagagcgaggacgacgaaccgagcaaaccctca
tccaaaccacgacggccccaagacaaaactcagggctacccccgatctgagtgcttcaga
gtggagaagaacctgctggtctacggttggggtaggtggagtgacatccttgctcatggt
cgctttaagcgccccctgaaggaggcagatgtggaaaagatctgcagagcccttttggcc
tactgcctgctgcactatcgtggagatgagaatatcaagagcttcatctgggatctgatc
accccaagtgaggacgggactaccaagacgctgaccaaccactctggtctctctactcca
gtccctcggggcaggaagggcaaaaaggggaagcccacagccccgcctccgcagactccc
cgagctgattggcttgccagctgcaatcctgaccacttattgcaagaggatagctacaag
agacacctgaaacatcactgtaacaaggtgttgctgagggtgaggatgctgtattatctg
cgacaggaggtcataggcgaccaggcggaacgtactctggaaggatctgacgccagtgag
ctggacatctggattccccagccgttccatgctgaagtcccagctgactggtgggacagc
gaggcagacaaatccctgctcatcggtgtcttcaaacacggctatgagaagtacaactca
atgcgagctgaccccgccctgtgtttcttggagagggtcggcatgccggacgccaaggct
atcgctgctgagcagaggggctccgacatgatggcagatggcgttgagggtgaggatgag
gatccagagtacaagccactgcggatgccttttaaagatgaaatggacgacttcaccaac
tcaccactggatgacactgtggaaggtgaagccgaagctaaatcaggtgaaaacggtcaa
agtgttttgggcggagcttcaggctccaacgagcgactctattggccagcagcctcagct
ctgactgcccgtctgcgtcgcctcatcacggcctaccagcgctccaaccgcagggagcag
ctccgccaggaggccctcaaccggcctgatggtcgcagacgacgacgcagggagttcctg
cctgccatcgggatggttaccgatacacaaggagcaacttacatccaagatggagcgggg
gtcttcttgacagaaggcagccagtatctggctaaaggaagttcttactttgccaaaggt
gggcagttcatgccagaggcgtcaccagtgatgaccgccagctccctgatgactgatgga
accatgtactacaaggaaaggagacaaagatggactcgtcgtgaggaggctgatttctac
cgtgtagtatccaccttcggagtcgtctttgatacccaccgtcagaaatttgattgggca
cagttcagggcatttgctcgactggacaagaaaacagacgagagcttggagaaatattac
tattcatttattgccatgtgtaaacgggtctgcagaatgcaggtcaagactgatacagaa
ctcccagatccaacgctgatcattgaccccatcacagaggagcgtgcctctcgcaccctg
taccgcatcgagctgctacgtcgcatccgtgagcaagttctcccccacccgctgctctct
gagcgcctcaagctttgccagccctccccagacctcccagagtggtgggagtgtggccgc
catgaccgggacctcatcctgggggcttctaagcatggtgtaagcaggacagattatcac
atcttaaacgaccctaccttggcctttttggacgcccaccagcgatttacaagccagcga
gggcctggtgtcagcatgggagtacagggagaggtcaccaaagcggggatgggggcaaca
gaaaacatccctgcacccctcttcacctctgcagagctggcaagcgcggcggcttccgcc
caaattgccgtcgattcagctaaagaggagggagaagggaaggaggtgaagacggaggtg
aaaatggaaaaaggagatgccaatgacattccatgtaccaagactgaaactcctgatgac
gagaaggaacatgagggagaggtcagagaagggaaagatgaaatcgctgcttcaccgaga
agggaggtgaagaaagaagaagaagaaaaagaagagggggcccagccaaaattagagaaa
gaggagcacgaaaagcagaaagaggagcacgaaaagcagaaagaagagcagattggagaa
ggagacaagacttccacgtcagcagatgaccaagacaaagacttaacagaagagaagagt
ctgactcttgttgactctctcagggaccagagggagatgaccactgagctcacagaacat
cccgactcctctcctaaagcacaactgggccacaagacttcagagcagggagacagagag
gagagggagaacccggagtctcctaaatctccaaagtcagctgacacagagaagagccca
gaggaggaagaggaagagaggatggatgaagatgacaaatcggagaaatcatctcaggct
gaagcgagtgctgcgtcagagcagaagaactttgatgaggaaagtatcgcatctctgagc
acatctgctcaaaacgaaaccagagatgggttctgccccgatgacctgccagaaacctct
gcactgcaggccttacaggaccgcgcttttgccttctcattctggcctaaggatcgagtg
atgatcaacaggatggataacatctgcgaggctgtcctgaagggcaagtggcctgtcaac
agacgccacatctttgacttccccagtaacctgttaccaggccatggctccacagtaacc
ccagcagccgtagccacggtgaccgagagcccgctgcagaggcggagcctagccgagctg
acaatggccggcattcatacaccttacagtgggagtgaggataaaacactatcgccacag
gttcatgaggatgctctgagcctgacagtgcctcggcagaggaggaggagaaggaggaag
attgagattgaggcagagagggccgccaagagacgtaacctaatggagatggtggctcag
ctgagagagagccactctgctgccgagtcccagagccaagctatagacctcaccaagggt
atgcaccatcaccacaaggcctctccgtcattggctggcttccccagtgccctggtgaca
agcccatccctcaaagcccaaatggagctgcttcagcaagccccaccctctggacacaga
gccaatggtgcactggaggctgacctgcccatcatgaggaggaggcgaggccgcaggaaa
aatgtggaaggcctggagctgttgttcatgggcaacaagagaacaggagcggatgatggt
gatgggacaaaggtttcaggtgtggaggtggttcaggatgctgcccgtgcccacagaccc
ctctccgtgccagagcagagcccaagtgccagatctcttgcctctggcagtctggaggag
gaagaagcagcagtttccaacaaagagctaggagagtggctgaggcagcacccaacatac
accatggacatgactggattcacaccaaagagcgaggatttattgctgtctcagttttct
aagcccaagcagaagcgccatcgctgtcgaaaccccaacaagatagacatcaacaccctg
actggtgacgagagagtgcctgtggttaacagacgcaacggacgcaagatgggcggggcc
atggctccaccaatgaaggaacttcccagatggttactggagaacccagagtattctatt
gcccctgattggacggacattgtgaagcagtcgggtttccttccagaagccatgtttgac
cgccttctgaccggccctgtagttagagaggagggcgtccgtcgacgggggcgacgacct
aaatcggagattgccaaggcggctgcagctgcccaggcagcagcagcagctcaggctgcc
caggcatcgctggcctctgctgtttcatctgcaggaggaatcaaccctctgctgttgaac
agtctgtttggaggaatggacctgtcatccctccagagccttcagtctcttcagttggct
gctggtctgatggccttccctcacaccgccgaccccaagcacgctgctgccaacgccgcc
accgcctccatgatgccccttatgttgcccggtattggaggcctgcccaacatggctggc
ctcccgaacatgtttagtctaggcgggctgtttggaggtaacctggcagcagctgcagct
gcagcctcaaactccatcactgacccttcacagaacaccaacggaacaatggagagagac
ggaggagagagtgacgaggcagtgacgacgaagaggaagagagatagacaggaaaaagaa
gagggagaagactatgaagagatgggagatgatgaagaggaggctgatggtaatgaagaa
gtgaagaagaaggcgaggaagaaggagaaagggggcaagggaggggctgagaaatcagtt
aatgatgtaactggagctcagatcccagctgctgattcgacatccatcaacggtgatgcc
gcagccctgttagctgcagccggaatgtcagcaaattccctggcgttcaaccccttcctc
ctctccaccatggcccccggcctcctctacccctcaatgttccttcctccaggccttgga
gggctcagtctgcccggcttccccaccgcctccaccctggccgagctgcagaacgccatg
gctggagcgctggggggcaacattgtgaccacaaaccccccaaaagacgaggaggaggag
gaggacggtgacgatgatgaggaggaggaggaggaggagaagggggggctgaaagccaca
ggagaggaggagttggagggaggagaaagtgacttggctgaggaaaaggagaatggagcg
gaggaggagacaagaggcaacgattcagccttggaggatggaaggatgggtgaggaggag
gaggaagaggaggcagcggcgtcttcacagaaggacaagagtgactga
DBGET
integrated database retrieval system
