L optical density of buy BIBS39 561024 at 600 nm (OD600 = 561024), and the suspension was immediately poured into the dish. The plates were incubated at 30uC for 1 to 2 days.Supporting InformationEffect of promoter on detection of dimerization of yeast Ste2p Fruquintinib receptor in NMY62 strain. NMY62 yeast strain was transformed with the plasmids expressing indicated protein pairs and grown on SD eu, Trp, Ade and His dropout plate at 30uC. (A) CYC1 promoter. (B) PHO5 promoter and TPI1 promoter. (C) TDH3 promoter. (TIF)Figure S1 Figure S2 Effect of removal of C-terminal tail on detection of dimerization of yeast Ste2p receptor in NMY62 strain. NMY62 yeast strain was transformed with plasmids expressing indicated protein pairs. Quantitative bgalactosidase assays for full-length Ste2p receptor under the control of TPI1 promoter (A) and Ste2p receptor that lacks the Cterminal tail (Ste2DC) under the control of TPI1 promoter (B). (TIF) Figure S3 Detection of homodimerization of human SSTR5 receptor in NMY62 or NMY63 strains. NMY63 yeast strain was transformed with plasmids expressing indicated protein pairs. Quantitative b-galactosidase assays for the NMY62 strain (A) and NMY63 strain (B). (TIF) Figure S4 Optimization of promoter to detect homodimerization of human GPCRs in NMY63 strain. NMY63 yeast strain was transformed with plasmids expressing 16985061 the indicated protein pairs. (A) Quantitative b-galactosidase assays. (B ) Growth assays on SD eu, Trp, Ade and His dropout plate at 30uC. (A) GABAB2 receptor (GABBR2) (B) AT1 angiotensin receptor (AGTR1) (C) MT1 melatonin receptor (MTNR1A) (D) somatostatin receptor 2 (SSTR2) (E) b2-adrenergic receptor (ADRB2) (F) 5-hydroxytryptamine (serotonin) receptor 1A (HTR1A). The control prey plasmid was pPR3-C mock vector. (TIF)Evaluation of Receptor DimerizationCub and NubG fusion constructs (Table S2) were cotransformed into yeast strains. Cells were grown in SD media lacking leucine and tryptophan overnight at 30uC on a rotatory shaker set at 150 rpm and then harvested to evaluate receptor dimerization by growth assay and b-galactosidase assay.Growth AssayHarvested cells were washed with distilled water, and cell suspensions were prepared to give an 23148522 OD600 of 10. Seven microliters of serial dilutions of cell suspensions (1:10) were spotted on SD agar plates lacking leucine, tryptophan, adenine and histidine. The plates were incubated at 30uC.b-D-galactosidase Activity Assayb-D-galactosidase activity was determined by using chlorophenol red b-D-galactopyranoside (CPRG) (Roche Applied Science, Indianapolis, IN, USA) as the chromogenic substrate. The procedure basically followed the method described in the Yeast Protocols Handbook (Clontech Laboratories, Inc./Takara Bio Company). Harvested cells were washed once with buffer 1 [100 mM 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES), 150 mM NaCl, 4 mM L-aspartic acid hemimagnesiumScreening of Human GPCR HeterodimerFigure S5 Detection of homo- and hetero-dimerizationTable S3 List of prey GPCR library.of human GABAB1a receptor with GABAB2 receptor in NMY63 strain. Quantitative b-galactosidase assay. NMY63 yeast strain was transformed with plasmids expressing indicated protein pairs. Error bars represent the standard deviations (n = 3). The control prey plasmid was pPR3-C mock vector. (TIF)Table S1 List of oligonucleotides.(PDF)Document S1 Supplementary Materials and Methods (Plasmid constructions for supporting information). (PDF)Author ContributionsConceived and designed.L optical density of 561024 at 600 nm (OD600 = 561024), and the suspension was immediately poured into the dish. The plates were incubated at 30uC for 1 to 2 days.Supporting InformationEffect of promoter on detection of dimerization of yeast Ste2p receptor in NMY62 strain. NMY62 yeast strain was transformed with the plasmids expressing indicated protein pairs and grown on SD eu, Trp, Ade and His dropout plate at 30uC. (A) CYC1 promoter. (B) PHO5 promoter and TPI1 promoter. (C) TDH3 promoter. (TIF)Figure S1 Figure S2 Effect of removal of C-terminal tail on detection of dimerization of yeast Ste2p receptor in NMY62 strain. NMY62 yeast strain was transformed with plasmids expressing indicated protein pairs. Quantitative bgalactosidase assays for full-length Ste2p receptor under the control of TPI1 promoter (A) and Ste2p receptor that lacks the Cterminal tail (Ste2DC) under the control of TPI1 promoter (B). (TIF) Figure S3 Detection of homodimerization of human SSTR5 receptor in NMY62 or NMY63 strains. NMY63 yeast strain was transformed with plasmids expressing indicated protein pairs. Quantitative b-galactosidase assays for the NMY62 strain (A) and NMY63 strain (B). (TIF) Figure S4 Optimization of promoter to detect homodimerization of human GPCRs in NMY63 strain. NMY63 yeast strain was transformed with plasmids expressing 16985061 the indicated protein pairs. (A) Quantitative b-galactosidase assays. (B ) Growth assays on SD eu, Trp, Ade and His dropout plate at 30uC. (A) GABAB2 receptor (GABBR2) (B) AT1 angiotensin receptor (AGTR1) (C) MT1 melatonin receptor (MTNR1A) (D) somatostatin receptor 2 (SSTR2) (E) b2-adrenergic receptor (ADRB2) (F) 5-hydroxytryptamine (serotonin) receptor 1A (HTR1A). The control prey plasmid was pPR3-C mock vector. (TIF)Evaluation of Receptor DimerizationCub and NubG fusion constructs (Table S2) were cotransformed into yeast strains. Cells were grown in SD media lacking leucine and tryptophan overnight at 30uC on a rotatory shaker set at 150 rpm and then harvested to evaluate receptor dimerization by growth assay and b-galactosidase assay.Growth AssayHarvested cells were washed with distilled water, and cell suspensions were prepared to give an 23148522 OD600 of 10. Seven microliters of serial dilutions of cell suspensions (1:10) were spotted on SD agar plates lacking leucine, tryptophan, adenine and histidine. The plates were incubated at 30uC.b-D-galactosidase Activity Assayb-D-galactosidase activity was determined by using chlorophenol red b-D-galactopyranoside (CPRG) (Roche Applied Science, Indianapolis, IN, USA) as the chromogenic substrate. The procedure basically followed the method described in the Yeast Protocols Handbook (Clontech Laboratories, Inc./Takara Bio Company). Harvested cells were washed once with buffer 1 [100 mM 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES), 150 mM NaCl, 4 mM L-aspartic acid hemimagnesiumScreening of Human GPCR HeterodimerFigure S5 Detection of homo- and hetero-dimerizationTable S3 List of prey GPCR library.of human GABAB1a receptor with GABAB2 receptor in NMY63 strain. Quantitative b-galactosidase assay. NMY63 yeast strain was transformed with plasmids expressing indicated protein pairs. Error bars represent the standard deviations (n = 3). The control prey plasmid was pPR3-C mock vector. (TIF)Table S1 List of oligonucleotides.(PDF)Document S1 Supplementary Materials and Methods (Plasmid constructions for supporting information). (PDF)Author ContributionsConceived and designed.

L optical density of 561024 at 600 nm (OD600 = 561024), and the suspension was

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