AAA92048 (Xenopus laevis)
bHLH

TF Information

Pfam ID Interpro ID Gene ID CIS-BP ID Sequence source
PF00010 (HLH) IPR001092 AAA92048 T051313_2.00 Misc (2018-Jan-19)

Directly determined binding motifs

Name/Motif ID Species Forward Reverse Type/Study/Study ID SR
Score		 DBD
Identity
No direct experiments

Motifs from related TFs

Name/Motif ID Species Forward Reverse Type/Study/Study ID SR
Score		 DBD
Identity
Tcf12
M01740_2.00 		Mus musculus
NVCAYCTGB
VCAGRTGBN		 PBM
Weirauch et al.(2014)
pTH5071 		0.894 0.923
TCF12
M04137_2.00 		Homo sapiens
VCACSTGB
VCASGTGB		 SELEX
Yin et al.(2017)
TCF12_eDBD_HT-SELEX 		0.894 0.923
Tcf12
M08062_2.00 		Mus musculus
RRCAGCTGNNN
NNNCAGCTGYY		 ChIP-seq
Mathelier et al.(2014)
MA0521.1 		0.894 0.923
TCF12
M07805_2.00 		Homo sapiens
NVDSCAGSTGB
VCASCTGSHBN		 ChIP-seq
Gerstein et al.(2012)
GM12878_TCF12_HudsonAlpha 		0.894 0.923
TCF12
M07806_2.00 		Homo sapiens
VCASCTGB
VCAGSTGB		 ChIP-seq
Gerstein et al.(2012)
H1-hESC_TCF12_HudsonAlpha 		0.894 0.923
TCF12
M08731_2.00 		Homo sapiens
CMCASCTGSH
DSCAGSTGKG		 Misc
Kulakovskiy et al.(2013)
HTF4_HUMAN.H11MO.0.A 		0.894 0.923
Tcf12
M08762_2.00 		Mus musculus
VMCASCTGSH
DSCAGSTGKB		 Misc
Kulakovskiy et al.(2013)
HTF4_MOUSE.H11MO.0.A 		0.894 0.923
TCF12
M09458_2.00 		Homo sapiens
NNVCAGCTGB
VCAGCTGBNN		 Misc
Heinz et al.(2010)
GM12878-Tcf12_GSE32465 		0.894 0.923
TCF12
M09858_2.00 		Homo sapiens Transfac license required
 Transfac license required
 Transfac
Matys et al.(2006)
V$HEB_Q6 		0.894 0.923
TCF12
M09859_2.00 		Homo sapiens Transfac license required
 Transfac license required
 Transfac
Matys et al.(2006)
V$HTF4_Q2 		0.894 0.923
TCF12
M09860_2.00 		Homo sapiens Transfac license required
 Transfac license required
 Transfac
Matys et al.(2006)
V$TCF12_01 		0.894 0.923
TCF12
M09861_2.00 		Homo sapiens Transfac license required
 Transfac license required
 Transfac
Matys et al.(2006)
V$TCF12_03 		0.894 0.923
TCF12
M09862_2.00 		Homo sapiens Transfac license required
 Transfac license required
 Transfac
Matys et al.(2006)
V$TCF12_05 		0.894 0.923
TCF12
M04138_2.00 		Homo sapiens
NCAYCTGN
NCAGRTGN		 SELEX
Yin et al.(2017)
TCF12_eDBD_Methyl-HT-SELEX 		0.894 0.923
Tcf3
M00753_2.00 		Mus musculus
VCACCTGBN
NVCAGGTGB		 PBM
Weirauch et al.(2013)
pTH3866 		0.894 0.846
Tcf3
M01723_2.00 		Mus musculus
NNVCACSTGB
VCASGTGBNN		 PBM
Weirauch et al.(2014)
pTH4580 		0.894 0.846
Tcf3
M00118_2.00 		Mus musculus
VCAYCTGB
VCAGRTGB		 PBM
Badis et al.(2009)
Tcfe2a_3865 		0.894 0.846
Tcf4
M01750_2.00 		Mus musculus
VCAGVTGBN
NVCABCTGB		 PBM
Weirauch et al.(2014)
pTH5101 		0.892 0.885
TCF4
M02807_2.00 		Homo sapiens
HRCACCTGBN
NVCAGGTGYD		 SELEX
Jolma et al.(2013)
TCF4_1 		0.892 0.885
TCF4
M02808_2.00 		Homo sapiens
NVCACCTBBN
NVVAGGTGBN		 SELEX
Jolma et al.(2013)
TCF4_2 		0.892 0.885
TCF4
M02728_2.00 		Homo sapiens
RCACCTG
CAGGTGY		 SELEX
Jolma et al.(2010)
TCF4_dimer 		0.892 0.885
TCF4
M04214_2.00 		Homo sapiens
VCACCTGB
VCAGGTGB		 SELEX
Yin et al.(2017)
TCF4_eDBD_HT-SELEX 		0.892 0.885
Tcf4
M08775_2.00 		Mus musculus
HRCACCTGB
VCAGGTGYD		 Misc
Kulakovskiy et al.(2013)
ITF2_MOUSE.H11MO.0.B 		0.892 0.885
TCF4
M09461_2.00 		Homo sapiens
ASWTCAAAGRVN
NBYCTTTGAWST		 Misc
Heinz et al.(2010)
Hct116-Tcf4_SRA012054 		0.892 0.885
TCF4
M04215_2.00 		Homo sapiens
VCACCTGN
NCAGGTGB		 SELEX
Yin et al.(2017)
TCF4_eDBD_Methyl-HT-SELEX 		0.892 0.885
TCF3
M02775_2.00 		Homo sapiens
NVCACCTGBN
NVCAGGTGBN		 SELEX
Jolma et al.(2013)
TCF3_1 		0.866 0.923
TCF3
M08710_2.00 		Homo sapiens
VVCASCTGCHN
NDGCAGSTGBB		 Misc
Kulakovskiy et al.(2013)
TFE2_HUMAN.H11MO.0.A 		0.866 0.923
TCF3
M09791_2.00 		Homo sapiens Transfac license required
 Transfac license required
 Transfac
Matys et al.(2006)
V$E12_Q6 		0.866 0.923
TCF3
M09792_2.00 		Homo sapiens Transfac license required
 Transfac license required
 Transfac
Matys et al.(2006)
V$E2A_Q6_01 		0.866 0.923
TCF3
M09793_2.00 		Homo sapiens Transfac license required
 Transfac license required
 Transfac
Matys et al.(2006)
V$E2A_Q6_02 		0.866 0.923
TCF3
M09794_2.00 		Homo sapiens
VVVVMCACCTGCNBB
VVNGCAGGTGKBBBB		 Transfac
Matys et al.(2006)
V$E47_01 		0.866 0.923
TCF3
M09795_2.00 		Homo sapiens
NNKWRCACCTGYDNNN
NNNHRCAGGTGYWMNN		 Transfac
Matys et al.(2006)
V$E47_02 		0.866 0.923
Tcf3
M09465_2.00 		Mus musculus
ABWTCAAAGS
SCTTTGAWVT		 Misc
Heinz et al.(2010)
mES-Tcf3_GSE11724 		0.866 0.885
Tcf3
M09466_2.00 		Mus musculus
VCAGCTGBNN
NNVCAGCTGB		 Misc
Heinz et al.(2010)
proBcell-E2A_GSE21978 		0.866 0.885
Tcf3
M09886_2.00 		Mus musculus Transfac license required
 Transfac license required
 Transfac
Matys et al.(2006)
V$E47_05 		0.866 0.885
For this family, TFs with SR scores > 0.838 will likely have a similar motif

DNA Binding Domains

Protein ID Domain From To Sequence
AAA92048 bHLH 57 110

Links

Other bHLH family TFs
Other Xenopus laevis TFs

203 Related TFs

Name Species Gene ID Motif Evidence SR
Score		 Action
tcf12 Xenopus laevis XB-GENE-5799694 I 0.914
Tcf12 Rattus norvegicus ENSRNOG00000057754 I 0.894
TCF3 Loxodonta africana ENSLAFG00000026277 I 0.894
TCF12 Sorex araneus ENSSARG00000013798 I 0.894
TCF12 Loxodonta africana ENSLAFG00000010546 I 0.894
Tcf3 Rattus norvegicus ENSRNOG00000051499 I 0.894
ENSLACG00000014145 Latimeria chalumnae ENSLACG00000014145 I 0.894
ENSMGAG00000005667 Meleagris gallopavo ENSMGAG00000005667 I 0.894
TCF12 Pteropus vampyrus ENSPVAG00000006184 I 0.894
ENSLOCG00000013539 Lepisosteus oculatus ENSLOCG00000013539 I 0.894
TCF12 Microcebus murinus ENSMICG00000009110 I 0.894
ENSSTOG00000001523 Ictidomys tridecemlineatus ENSSTOG00000001523 I 0.894
TCF12 Takifugu rubripes ENSTRUG00000008110 I 0.894
tcf12 Gasterosteus aculeatus ENSGACG00000015831 I 0.894
ENSTSYG00000009264 Tarsius syrichta ENSTSYG00000009264 I 0.894
TCF12 Gasterosteus aculeatus ENSGACG00000006101 I 0.894
ENSTNIG00000013705 Tetraodon nigroviridis ENSTNIG00000013705 I 0.894
TCF12 Gorilla gorilla ENSGGOG00000008166 I 0.894
TCF12 Myotis lucifugus ENSMLUG00000006205 I 0.894
TCF12 Tupaia belangeri ENSTBEG00000002192 I 0.894
TCF12 Taeniopygia guttata ENSTGUG00000006270 I 0.894
ENSSHAG00000015935 Sarcophilus harrisii ENSSHAG00000015935 I 0.894
TCF12 Pan troglodytes ENSPTRG00000007109 I 0.894
TCF12 Oryzias latipes ENSORLG00000005330 I 0.894
TCF12 Ornithorhynchus anatinus ENSOANG00000009462 I 0.894
tcf12 Oryzias latipes ENSORLG00000008508 I 0.894
ENSNLEG00000006707 Nomascus leucogenys ENSNLEG00000006707 I 0.894
ENSONIG00000008337 Oreochromis niloticus ENSONIG00000008337 I 0.894
ENSOARG00000020872 Ovis aries ENSOARG00000020872 I 0.894
TCF12 Otolemur garnettii ENSOGAG00000006485 I 0.894
TCF12 Oryctolagus cuniculus ENSOCUG00000017812 I 0.894
ENSONIG00000005794 Oreochromis niloticus ENSONIG00000005794 I 0.894
ENSPANG00000017265 Papio anubis ENSPANG00000017265 I 0.894
ENSPFOG00000004140 Poecilia formosa ENSPFOG00000004140 I 0.894
ENSPPYG00000006505 Pongo abelii ENSPPYG00000006505 I 0.894
ENSPSIG00000011880 Pelodiscus sinensis ENSPSIG00000011880 I 0.894
TCF12 Macaca mulatta ENSMMUG00000004091 I 0.894
TCF12 Monodelphis domestica ENSMODG00000008311 I 0.894
ENSMPUG00000004438 Mustela putorius furo ENSMPUG00000004438 I 0.894
Tcf12 Mus musculus ENSMUSG00000032228 D 0.894
Tcf3 Mus musculus ENSMUSG00000020167 D 0.894
ENSPFOG00000024249 Poecilia formosa ENSPFOG00000024249 I 0.894
TCF12 Tursiops truncatus ENSTTRG00000010817 I 0.894
TCF12 Gallus gallus ENSGALG00000004304 I 0.894
TCF12 Cavia porcellus ENSCPOG00000009153 I 0.894
Myotis_brandtii_Tcf12_10010436 Myotis brandtii Myotis_brandtii_Tcf12_10010436 I 0.894
TCF12 Choloepus hoffmanni ENSCHOG00000003168 I 0.894
Gfo_R004309 Geospiza fortis Gfo_R004309 I 0.894
ENSCSAG00000011901 Chlorocebus sabaeus ENSCSAG00000011901 I 0.894
ENSDNOG00000042880 Dasypus novemcinctus ENSDNOG00000042880 I 0.894
ENSBTAP00000048638-D1 Bos grunniens ENSBTAP00000048638-D1 I 0.894
ENSP00000331057 Macaca fascicularis ENSP00000331057 I 0.894
TCF12 Canis familiaris ENSCAFG00000016200 I 0.894
Ogr11405 Ophisaurus gracilis Ogr11405 I 0.894
ENSAMEG00000010612 Ailuropoda melanoleuca ENSAMEG00000010612 I 0.894
tcf12.L Xenopus laevis XB-GENE-5799717 I 0.894
TCF12 Anolis carolinensis ENSACAG00000014277 I 0.894
tcf12 Xenopus tropicalis XB-GENE-5799694 I 0.894
ENSAMXG00000014804 Astyanax mexicanus ENSAMXG00000014804 I 0.894
Pvit_17395 Pogona vitticeps Pvit_17395 I 0.894
TCF3 Bos taurus ENSBTAG00000008695 I 0.894
TCF12 Bos taurus ENSBTAG00000002586 I 0.894
TCF3 Equus caballus ENSECAG00000000623 I 0.894
tcf12 Danio rerio ENSDARG00000004714 I 0.894
ENSFALG00000012146 Ficedula albicollis ENSFALG00000012146 I 0.894
ENSXMAG00000014303 Xiphophorus maculatus ENSXMAG00000014303 I 0.894
Afo_R014990 Aptenodytes forsteri Afo_R014990 I 0.894
TCF12 Erinaceus europaeus ENSEEUG00000002182 I 0.894
Aan_R011985 Calypte anna Aan_R011985 I 0.894
TCF12 Felis catus ENSFCAG00000031674 I 0.894
TCF12 Homo sapiens ENSG00000140262 D 0.894
TCF12 Vicugna pacos ENSVPAG00000006545 I 0.894
Alligator_sinensis_CCG017304.1 Alligator sinensis Alligator_sinensis_CCG017304.1 I 0.894
TCF12 Equus caballus ENSECAG00000011678 I 0.894
TCF4 Tupaia belangeri ENSTBEG00000015498 I 0.892
ENSORLG00000015062 Oryzias latipes ENSORLG00000015062 I 0.892
TCF4 Anolis carolinensis ENSACAG00000008863 I 0.892
ENSXMAG00000011822 Xiphophorus maculatus ENSXMAG00000011822 I 0.892
tcf4.S Xenopus laevis XB-GENE-1011632 I 0.892
ENSTSYG00000009542 Tarsius syrichta ENSTSYG00000009542 I 0.892
ENSONIG00000012720 Oreochromis niloticus ENSONIG00000012720 I 0.892
ENSPFOG00000009937 Poecilia formosa ENSPFOG00000009937 I 0.892
tcf4 Xenopus tropicalis XB-GENE-1011628 I 0.892
Pvit_19114 Pogona vitticeps Pvit_19114 I 0.892
ENSPMAG00000000958 Petromyzon marinus ENSPMAG00000000958 I 0.892
ENSP00000381382-D1 Bos grunniens ENSP00000381382-D1 I 0.892
TCF4 Tursiops truncatus ENSTTRG00000011542 I 0.892
TCF4 Pan troglodytes ENSPTRG00000010040 I 0.892
TCF4 Pteropus vampyrus ENSPVAG00000002074 I 0.892
Tcf4 Rattus norvegicus ENSRNOG00000012405 I 0.892
Cmyd_10020160 Chelonia mydas Cmyd_10020160 I 0.892
ENSSHAG00000014955 Sarcophilus harrisii ENSSHAG00000014955 I 0.892
ENSP00000381382 Macaca fascicularis ENSP00000381382 I 0.892
ENSPSIG00000014469 Pelodiscus sinensis ENSPSIG00000014469 I 0.892
Alligator_sinensis_CCG017823.1 Alligator sinensis Alligator_sinensis_CCG017823.1 I 0.892
Afo_R000660 Aptenodytes forsteri Afo_R000660 I 0.892
Myotis_brandtii_Tcf4_10017301 Myotis brandtii Myotis_brandtii_Tcf4_10017301 I 0.892
ENSSTOG00000005134 Ictidomys tridecemlineatus ENSSTOG00000005134 I 0.892
TCF4 Sus scrofa ENSSSCG00000004535 I 0.892
ENSPPYG00000009175 Pongo abelii ENSPPYG00000009175 I 0.892
Ogr02020 Ophisaurus gracilis Ogr02020 I 0.892
ENSOGAG00000005735 Otolemur garnettii ENSOGAG00000005735 I 0.892
ENSMLUG00000012927 Myotis lucifugus ENSMLUG00000012927 I 0.892
TCF4 Choloepus hoffmanni ENSCHOG00000000331 I 0.892
TCF4 Microcebus murinus ENSMICG00000012305 I 0.892
TCF4 Canis familiaris ENSCAFG00000000140 I 0.892
Tcf4 Dipodomys ordii ENSDORG00000012697 I 0.892
TCF4 Macaca mulatta ENSMMUG00000012001 I 0.892
TCF4 Bos taurus ENSBTAG00000016462 I 0.892
ENSGMOG00000018104 Gadus morhua ENSGMOG00000018104 I 0.892
TCF4 Callithrix jacchus ENSCJAG00000004038 I 0.892
ENSLOCG00000003538 Lepisosteus oculatus ENSLOCG00000003538 I 0.892
TCF4 Loxodonta africana ENSLAFG00000013449 I 0.892
TCF4 Erinaceus europaeus ENSEEUG00000000134 I 0.892
ENSCSAG00000018141 Chlorocebus sabaeus ENSCSAG00000018141 I 0.892
ENSMEUG00000003794 Macropus eugenii ENSMEUG00000003794 I 0.892
ENSLACG00000003485 Latimeria chalumnae ENSLACG00000003485 I 0.892
TCF4 Homo sapiens ENSG00000196628 D 0.892
ENSAPLG00000011135 Anas platyrhynchos ENSAPLG00000011135 I 0.892
TCF4 Monodelphis domestica ENSMODG00000020455 I 0.892
ENSAMXG00000009833 Astyanax mexicanus ENSAMXG00000009833 I 0.892
TCF4 Gorilla gorilla ENSGGOG00000016297 I 0.892
ENSOARG00000005018 Ovis aries ENSOARG00000005018 I 0.892
ENSAMEG00000017162 Ailuropoda melanoleuca ENSAMEG00000017162 I 0.892
ENSGACG00000000628 Gasterosteus aculeatus ENSGACG00000000628 I 0.892
TCF4 Oryctolagus cuniculus ENSOCUG00000002669 I 0.892
TCF4 Ornithorhynchus anatinus ENSOANG00000003082 I 0.892
ENSNLEG00000007981 Nomascus leucogenys ENSNLEG00000007981 I 0.892
ENSGMOG00000015710 Gadus morhua ENSGMOG00000015710 I 0.892
Tcf4 Mus musculus ENSMUSG00000053477 D 0.892
TCF4 Equus caballus ENSECAG00000017265 I 0.892
TCF4 Felis catus ENSFCAG00000014682 I 0.892
ENSDNOG00000013859 Dasypus novemcinctus ENSDNOG00000013859 I 0.892
ENSMPUG00000016460 Mustela putorius furo ENSMPUG00000016460 I 0.892
Sakowv30044282m.g Saccoglossus kowalevskii Sakowv30044282m.g I 0.867
Brh_R007211 Buceros rhinoceros Brh_R007211 I 0.866
ENSFALG00000011409 Ficedula albicollis ENSFALG00000011409 I 0.866
ENSXMAG00000006665 Xiphophorus maculatus ENSXMAG00000006665 I 0.866
TCF3 Homo sapiens ENSG00000071564 D 0.866
ENSXMAG00000012718 Xiphophorus maculatus ENSXMAG00000012718 I 0.866
Aan_R011701 Calypte anna Aan_R011701 I 0.866
TCF3 Echinops telfairi ENSETEG00000015388 I 0.866
Cmyd_10006706 Chelonia mydas Cmyd_10006706 I 0.866
Afo_R010055 Aptenodytes forsteri Afo_R010055 I 0.866
TCF3 Cavia porcellus ENSCPOG00000023586 I 0.866
AAA92050 Xenopus laevis AAA92050 I 0.866
Ocbimv22006241m.g Octopus bimaculoides Ocbimv22006241m.g I 0.866
AAH44064 Xenopus laevis AAH44064 I 0.866
ENSAPLG00000001939 Anas platyrhynchos ENSAPLG00000001939 I 0.866
ENSAMEG00000003503 Ailuropoda melanoleuca ENSAMEG00000003503 I 0.866
ENSAMXG00000006548 Astyanax mexicanus ENSAMXG00000006548 I 0.866
Pvit_09822 Pogona vitticeps Pvit_09822 I 0.866
Ogr01318 Ophisaurus gracilis Ogr01318 I 0.866
tcf3b Danio rerio ENSDARG00000099999 I 0.866
ENSBTAP00000028599-D1 Bos grunniens ENSBTAP00000028599-D1 I 0.866
ENSP00000378813 Macaca fascicularis ENSP00000378813 I 0.866
tcf3a Danio rerio ENSDARG00000005915 I 0.866
Gfo_R007595 Geospiza fortis Gfo_R007595 I 0.866
Tcf3 Dipodomys ordii ENSDORG00000004745 I 0.866
TCF3 Gallus gallus ENSGALG00000001093 I 0.866
TCF3 Pan troglodytes ENSPTRG00000010211 I 0.866
TCF3 Myotis lucifugus ENSMLUG00000011221 I 0.866
ENSPSIG00000004202 Pelodiscus sinensis ENSPSIG00000004202 I 0.866
TCF3 Meleagris gallopavo ENSMGAG00000002388 I 0.866
ENSMEUG00000014058 Macropus eugenii ENSMEUG00000014058 I 0.866
ENSSHAG00000013735 Sarcophilus harrisii ENSSHAG00000013735 I 0.866
tcf3b Gasterosteus aculeatus ENSGACG00000012737 I 0.866
TCF3 Pteropus vampyrus ENSPVAG00000014587 I 0.866
ENSPPYG00000009327 Pongo abelii ENSPPYG00000009327 I 0.866
TCF3 Monodelphis domestica ENSMODG00000004143 I 0.866
tcf3b Oryzias latipes ENSORLG00000004923 I 0.866
ENSOARG00000012495 Ovis aries ENSOARG00000012495 I 0.866
ENSONIG00000004816 Oreochromis niloticus ENSONIG00000004816 I 0.866
TCF3 Ornithorhynchus anatinus ENSOANG00000014335 I 0.866
ENSPANG00000016063 Papio anubis ENSPANG00000016063 I 0.866
ENSMPUG00000008024 Mustela putorius furo ENSMPUG00000008024 I 0.866
ENSPFOG00000001904 Poecilia formosa ENSPFOG00000001904 I 0.866
ENSNLEG00000001742 Nomascus leucogenys ENSNLEG00000001742 I 0.866
ENSLACG00000016589 Latimeria chalumnae ENSLACG00000016589 I 0.866
ENSLOCG00000006013 Lepisosteus oculatus ENSLOCG00000006013 I 0.866
ENSGMOG00000004189 Gadus morhua ENSGMOG00000004189 I 0.866
TCF3 Taeniopygia guttata ENSTGUG00000000208 I 0.866
TCF3 Otolemur garnettii ENSOGAG00000003587 I 0.866
TCF3 Sus scrofa ENSSSCG00000013437 I 0.866
ENSGMOG00000008934 Gadus morhua ENSGMOG00000008934 I 0.866
ENSGMOG00000012207 Gadus morhua ENSGMOG00000012207 I 0.866
ENSSTOG00000010293 Ictidomys tridecemlineatus ENSSTOG00000010293 I 0.866
ENSTRUG00000002569 Takifugu rubripes ENSTRUG00000002569 I 0.864
tcf12 Takifugu rubripes ENSTRUG00000017855 I 0.864
TCF3 Gorilla gorilla ENSGGOG00000003667 I 0.864
ENSTNIG00000010330 Tetraodon nigroviridis ENSTNIG00000010330 I 0.864
TCF3 Felis catus ENSFCAG00000023514 I 0.864
tcf12 Tetraodon nigroviridis ENSTNIG00000009326 I 0.864
TCF3 Macaca mulatta ENSMMUG00000009017 I 0.864
TCF3 Callithrix jacchus ENSCJAG00000004642 I 0.864
XP_002153906.1 Hydra magnipapillata XP_002153906.1 I 0.855
SPU_016343 Strongylocentrotus purpuratus SPU_016343 I 0.846
tcf3.L Xenopus laevis XB-GENE-865159 I 0.842
tcf3a Gasterosteus aculeatus ENSGACG00000015282 I 0.840
tcf3a Tetraodon nigroviridis ENSTNIG00000015322 I 0.840
tcf3a Takifugu rubripes ENSTRUG00000008147 I 0.840
tcf3b Takifugu rubripes ENSTRUG00000017901 I 0.840
ENSONIG00000010206 Oreochromis niloticus ENSONIG00000010206 I 0.840