IntAct European Bioinformatics Institute IntAct intact http://www.ebi.ac.uk/ http://www.ebi.ac.uk/intact/query/${ac} EBI-[0-9]+|IA:[0-9]+ INTerAction database (IntAct) provides an open source database and toolkit for the storage, presentation and analysis of molecular interactions. http://www.ebi.ac.uk/intact European Bioinformatics Institute; Wellcome Trust Genome Campus; Hinxton, Cambridge; CB10 1SD; United Kingdom http://www.ebi.ac.uk/intact/ http://www.ebi.ac.uk/ zhu-2000a-1 Phytochrome B binds with greater apparent affinity than phytochrome A to the basic helix-loop-helix factor PIF3 in a reaction requiring the PAS domain of PIF3. in vitro In vitro pull down pull down weight autoradiogra molecular weight estimation by autoradiography weight autoradiogra Zhu Y., Tepperman JM., Fairchild CD., Quail PH. Light treatments were carried out by inclusion of phycocyanobilin and light treatments as follows. For red light treatments the mixture received 10 minute red light treatment on ice (343 mmol meter squared per second at a wavelength of 664 nm). For far red light treatments the mixture received 1 minute far red light treatment (353 mmol meter squared per second at a wavelength of 748 nm) immediately after the red light treatment. All binding reactions were then incubated in darkness for 2 h at 4degree celsius , proir to assay. quail@nature.berkeley.edu Proc. Natl. Acad. Sci. U.S.A. (0027-8424) 2000 phyb_arath Phytochrome B PHYB HY3 OOP1 Protein LONG HYPOCOTYL 3 Protein OUT OF PHASE 1 MSF3.17 At2g18790 protein protein arath Arabidopsis thaliana (Mouse-ear cress) Mouse-ear cress MVSGVGGSGGGRGGGRGGEEEPSSSHTPNNRRGGEQAQSSGTKSLRPRSNTESMSKAIQQYTVDARLHAVFEQSGESGKSFDYSQSLKTTTYGSSVPEQQITAYLSRIQRGGYIQPFGCMIAVDESSFRIIGYSENAREMLGIMPQSVPTLEKPEILAMGTDVRSLFTSSSSILLERAFVAREITLLNPVWIHSKNTGKPFYAILHRIDVGVVIDLEPARTEDPALSIAGAVQSQKLAVRAISQLQALPGGDIKLLCDTVVESVRDLTGYDRVMVYKFHEDEHGEVVAESKRDDLEPYIGLHYPATDIPQASRFLFKQNRVRMIVDCNATPVLVVQDDRLTQSMCLVGSTLRAPHGCHSQYMANMGSIASLAMAVIINGNEDDGSNVASGRSSMRLWGLVVCHHTSSRCIPFPLRYACEFLMQAFGLQLNMELQLALQMSEKRVLRTQTLLCDMLLRDSPAGIVTQSPSIMDLVKCDGAAFLYHGKYYPLGVAPSEVQIKDVVEWLLANHADSTGLSTDSLGDAGYPGAAALGDAVCGMAVAYITKRDFLFWFRSHTAKEIKWGGAKHHPEDKDDGQRMHPRSSFQAFLEVVKSRSQPWETAEMDAIHSLQLILRDSFKESEAAMNSKVVDGVVQPCRDMAGEQGIDELGAVAREMVRLIETATVPIFAVDAGGCINGWNAKIAELTGLSVEEAMGKSLVSDLIYKENEATVNKLLSRALRGDEEKNVEVKLKTFSPELQGKAVFVVVNACSSKDYLNNIVGVCFVGQDVTSQKIVMDKFINIQGDYKAIVHSPNPLIPPIFAADENTCCLEWNMAMEKLTGWSRSEVIGKMIVGEVFGSCCMLKGPDALTKFMIVLHNAIGGQDTDKFPFPFFDRNGKFVQALLTANKRVSLEGKVIGAFCFLQIPSPELQQALAVQRRQDTECFTKAKELAYICQVIKNPLSGMRFANSLLEATDLNEDQKQLLETSVSCEKQISRIVGDMDLESIEDGSFVLKREEFFLGSVINAIVSQAMFLLRDRGLQLIRDIPEEIKSIEVFGDQIRIQQLLAEFLLSIIRYAPSQEWVEIHLSQLSKQMADGFAAIRTEFRMACPGEGLPPELVRDMFHSSRWTSPEGLGLSVCRKILKLMNGEVQYIRESERSYFLIILELPVPRKRPLSTASGSGDMMLMMPY pif3_arath Transcription factor PIF3 Phytochrome-associated protein 3 Basic helix-loop-helix protein 8 PIF3 PAP3 BHLH8 At1g09530 F14J9.19 Transcription factor EN 100 bHLH transcription factor bHLH008 Phytochrome-interacting factor 3 EN100 protein protein arath Arabidopsis thaliana (Mouse-ear cress) Mouse-ear cress MPLFELFRLTKAKLESAQDRNPSPPVDEVVELVWENGQISTQSQSSRSRNIPPPQANSSRAREIGNGSKTTMVDEIPMSVPSLMTGLSQDDDFVPWLNHHPSLDGYCSDFLRDVSSPVTVNEQESDMAVNQTAFPLFQRRKDGNESAPAASSSQYNGFQSHSLYGSDRARDLPSQQTNPDRFTQTQEPLITSNKPSLVNFSHFLRPATFAKTTNNNLHDTKEKSPQSPPNVFQTRVLGAKDSEDKVLNESVASATPKDNQKACLISEDSCRKDQESEKAVVCSSVGSGNSLDGPSESPSLSLKRKHSNIQDIDCHSEDVEEESGDGRKEAGPSRTGLGSKRSRSAEVHNLSERRRRDRINEKMRALQELIPNCNKVDKASMLDEAIEYLKSLQLQVQIMSMASGYYLPPAVMFPPGMGHYPAAAAAMAMGMGMPYAMGLPDLSRGGSSVNHGPQFQVSGMQQQPVAMGIPRVSGGGIFAGSSTIGNGSTRDLSGSKDQTTTNNNSNLKPIKRKQGSSDQFCGSS phya_arath Phytochrome A PHYA HY8 At1g09570 F14J9.23 FHY2 FRE1 Protein FAR RED ELONGATED HYPOCOTYL 2 Protein FAR RED ELONGATED 1 Protein ELONGATED HYPOCOTYL 8 protein protein arath Arabidopsis thaliana (Mouse-ear cress) Mouse-ear cress MSGSRPTQSSEGSRRSRHSARIIAQTTVDAKLHADFEESGSSFDYSTSVRVTGPVVENQPPRSDKVTTTYLHHIQKGKLIQPFGCLLALDEKTFKVIAYSENASELLTMASHAVPSVGEHPVLGIGTDIRSLFTAPSASALQKALGFGDVSLLNPILVHCRTSAKPFYAIIHRVTGSIIIDFEPVKPYEVPMTAAGALQSYKLAAKAITRLQSLPSGSMERLCDTMVQEVFELTGYDRVMAYKFHEDDHGEVVSEVTKPGLEPYLGLHYPATDIPQAARFLFMKNKVRMIVDCNAKHARVLQDEKLSFDLTLCGSTLRAPHSCHLQYMANMDSIASLVMAVVVNEEDGEGDAPDATTQPQKRKRLWGLVVCHNTTPRFVPFPLRYACEFLAQVFAIHVNKEVELDNQMVEKNILRTQTLLCDMLMRDAPLGIVSQSPNIMDLVKCDGAALLYKDKIWKLGTTPSEFHLQEIASWLCEYHMDSTGLSTDSLHDAGFPRALSLGDSVCGMAAVRISSKDMIFWFRSHTAGEVRWGGAKHDPDDRDDARRMHPRSSFKAFLEVVKTRSLPWKDYEMDAIHSLQLILRNAFKDSETTDVNTKVIYSKLNDLKIDGIQELEAVTSEMVRLIETATVPILAVDSDGLVNGWNTKIAELTGLSVDEAIGKHFLTLVEDSSVEIVKRMLENALEGTEEQNVQFEIKTHLSRADAGPISLVVNACASRDLHENVVGVCFVAHDLTGQKTVMDKFTRIEGDYKAIIQNPNPLIPPIFGTDEFGWCTEWNPAMSKLTGLKREEVIDKMLLGEVFGTQKSCCRLKNQEAFVNLGIVLNNAVTSQDPEKVSFAFFTRGGKYVECLLCVSKKLDREGVVTGVFCFLQLASHELQQALHVQRLAERTAVKRLKALAYIKRQIRNPLSGIMFTRKMIEGTELGPEQRRILQTSALCQKQLSKILDDSDLESIIEGCLDLEMKEFTLNEVLTASTSQVMMKSNGKSVRITNETGEEVMSDTLYGDSIRLQQVLADFMLMAVNFTPSGGQLTVSASLRKDQLGRSVHLANLEIRLTHTGAGIPEFLLNQMFGTEEDVSEEGLSLMVSRKLVKLMNGDVQYLRQAGKSSFIITAELAAANK bhlh8-phyb-8 Interaction between PIF3 protein and the PHYB photoreceptor protein 727114 N/A 727115 unspecified role unspecified role prey prey region 35s radiolabel 35s radiolabel 35S s35 radiolabelled S35 s35 radiolabelled 35S S35 undetermined undetermined sequence position undetermined undetermined undetermined sequence position undetermined false n-terminal required to bind necessary binding region required to bind mutation analysis mutation analysis certain certain sequence position certain certain certain sequence position certain false c-terminal required to bind necessary binding region required to bind undetermined undetermined sequence position undetermined undetermined undetermined sequence position undetermined false in vitro In vitro N/A 727116 unspecified role unspecified role bait bait region 35s radiolabel 35s radiolabel 35S s35 radiolabelled S35 s35 radiolabelled 35S S35 undetermined undetermined sequence position undetermined undetermined undetermined sequence position undetermined false gal4 region GAL4 activation domain tag tag undetermined undetermined sequence position undetermined undetermined undetermined sequence position undetermined false in vitro In vitro direct interaction direct interaction false false false PIF3 preferentially interacts with the Pfr (biologically active) form of PhyB Figures 1, 2, 3 The authors concluded that " data indicate that phyB binds with up to 10-fold higher apparent affinity toPIF3 than does phyA". bhlh8-phya-1 Interaction between PIF3 protein and the PHYA photoreceptor protein 727114 N/A 727116 unspecified role unspecified role bait bait region 35s radiolabel 35s radiolabel 35S s35 radiolabelled S35 s35 radiolabelled 35S S35 undetermined undetermined sequence position undetermined undetermined undetermined sequence position undetermined false gal4 region GAL4 activation domain tag tag undetermined undetermined sequence position undetermined undetermined undetermined sequence position undetermined false in vitro In vitro N/A 727117 unspecified role unspecified role prey prey region 35s radiolabel 35s radiolabel 35S s35 radiolabelled S35 s35 radiolabelled 35S S35 undetermined undetermined sequence position undetermined undetermined undetermined sequence position undetermined false in vitro In vitro direct interaction direct interaction false false false PIF3 preferentially interacts with the Pfr (biologically active) form of PhyA Figures 1, 2 The authors concluded that " data indicate that phyB binds with up to 10-fold higher apparent affinity toPIF3 than does phyA". phyb-bhlh8 Interaction between PHYB photoreceptor protein and PIF3 protein 727114 N/A 727115 unspecified role unspecified role bait bait region 35s radiolabel 35s radiolabel 35S s35 radiolabelled S35 s35 radiolabelled 35S S35 undetermined undetermined sequence position undetermined undetermined undetermined sequence position undetermined false gal4 tag GAL4 activation domain tag tag undetermined undetermined sequence position undetermined undetermined undetermined sequence position undetermined false in vitro In vitro N/A 727116 unspecified role unspecified role prey prey region 35s radiolabel 35s radiolabel 35S s35 radiolabelled S35 s35 radiolabelled 35S S35 undetermined undetermined sequence position undetermined undetermined undetermined sequence position undetermined false region required to bind necessary binding region required to bind certain certain sequence position certain certain certain sequence position certain false region required to bind necessary binding region required to bind certain certain sequence position certain certain certain sequence position certain false O80536:p.Gly165Val mutation decreasing mutation decreasing interaction hotspot hotspot mutation decreasing certain certain sequence position certain certain certain sequence position certain false in vitro In vitro direct interaction direct interaction false false false Figures 4