An overview of the BioBricks we have designed, characterized, and submitted to the Registry of Standard Biological Parts.

Basic Parts

Part NumberNameTypeDescription
BBa_K5371006GAL4CodingA gene from Saccharomyces cerevisiae S288C encoding a galactose-responsive transcription factor
BBa_K2637056GAL80CodingA gene from Saccharomyces cerevisiae S288C encoding a transcription regulator which inhibits transcriptional activation by Gal4p
BBa_K3173005STE2CodingA gene from Saccharomyces cerevisiae S288C encoding the Mating factor alpha receptor
BBa_25Y5QTBFSTE12CodingA gene from Saccharomyces cerevisiae S288C encoding a component of signal pathway operating downstream of STE2
BBa_25KNR1N3MjDODCodingMjDOD was selected as the reporter gene to generate the visual output.This enzyme oxidizes L-DOPA to betalamic acid, Betalamic acid spontaneously reacts with endogenous amino acids or externally supplied amine donors, producing various colored betaxanthins
BBa_25W6SH7RPir1pCodingPir1p was selected to anchor the N-terminus of the substrate tag to the cell wall
BBa_253NFXE9SNAP25CodingSynaptosome-associated protein of 25 kDa (SNAP-25) serves as the substrate for botulinum neurotoxin type A (BoNT/A). BoNT/A cleaves SNAP25 at residues 197–198, thereby releasing the Mating factor alpha at the C-terminus of the substrate tag
BBa_25CSFL8EMating factor alphaCodingUpon proteolytic release by BoNT/A or TEV protease, the α-factor binds to the Ste2 receptor on the plasma membrane of Signal-transferring Strain, thereby initiating downstream signal transduction that culminates in activation of the reporter gene
BBa_25JA50EQURA3 marker geneCodingEnables orotidine-5'-phosphate decarboxylase activity. Involved in 'de novo' pyrimidine nucleobase biosynthetic process and UMP biosynthetic process. It is routinely employed for screening of the target yeast strain
BBa_J435273ScHIS3-markerCloning PlasmidThe plasmid carries the selection marker HIS3
BBa_K4873002pUC19Cloning PlasmidCloning vector with an ampicillin resistance marker
BBa_K5471003pUC57Cloning PlasmidCloning vector with an ampicillin resistance marker
BBa_25YQ5CKGpYES2Shuttle PlasmidHigh-copy episomal vector for galactose-inducible expression of proteins in Saccharomyces cerevisiae
BBa_25XSHZU8pUC19-STE2-URA3Cloning PlasmidA plasmid constructed to store donor sequence designed to knock out STE2
BBa_2544NN57pUC19-GAL80-HIS3Cloning PlasmidA plasmid constructed to store donor sequence designed to knock out GAL80
BBa_258H678MpUC19-GAL4-URA3Cloning PlasmidA plasmid constructed to store donor sequence designed to knock out GAL4
BBa_25FYVHU9GAL1 promoterPromoterAn inducible promoter which is widely used in yeast protein expression system. It is tightly repressed in the presence of glucose and strongly induced in the presence of galactose
BBa_K3126010CYC1 terminatorTerminatorThis part encodes the transcriptional terminator of the CYC1 gene from Saccharomyces cerevisiae. Ensures proper transcription termination and polyadenylation of mRNA transcripts
BBa_25SZUVYITEV protease cleavage site–α-factor encoding regionCodingA gene from Saccharomyces cerevisiae S288C alpha type encoding a Alpha-factor mating pheromone.Since botulinum toxin is legally prohibited from use in our experiments, we employed TEV protease as a surrogate.Therefore we added the cleavage site of TEV protease
BBa_25C0C6QIpUC19-FAR1-URA3Cloning PlasmidA plasmid constructed to store donor sequence designed to knock out FAR1
BBa_K1470002GAL4 DBDCodingGAL4 DNA-binding domain used to create a fusion protein called sTF, which triggers the transcription of reporter gene
BBa_25555HKKSTE12 PRDCodingSTE12 pheromone-responsive domain used to create a fusion protein called sTF, triggering transcription of reporter gene
BBa_K5477001pSTE12PromoterPromoter of STE12, activated by MAPK signaling cascade, responsible for inducing mating and pseudohyphal/invasive growth genes
BBa_256CPPNOste12 terminatorTerminatorTerminator of STE12, encoding a component of signal pathway operating downstream of STE2
BBa_25VY4NHQpYES2-PGAL1-MjDOD-CYC1PlasmidThis plasmid can preliminarily validate the feasibility of the pigment synthesis scheme. The enzyme can convert L-DOPA in the culture medium into betaxanthin. After transforming this plasmid into yeast, addition of galactose can also induce the reaction

Composite Parts

Part NumberNameTypeDescription
BBa_253UM26DpYES2-PGAL1-Pir1p-SNAP25-(TEV)-Mating factor alpha-CYC1CodingThis substrate tag was constructed to detect a trace of TEV protase which we chose to simulate the BoNT/A.This fusion proteins displayed on the cell wall surface of the Substrate Strain throught yeast surface display system
BBa_25RUA0B9pUC19-sTFCodingThis fusion protein composes of DNA-binding domain of Gal4 and pheromone-responsive domain of Ste12,replacing Ste12 as a component of the signal pathway operating downstream of Ste2. It responds to the signal and triggers the transcription of reporter gene,MjDOD