Essential Basic Part Types
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Transcript of Essential Basic Part Types
Essential Basic Part Types
Coding Sequences (C) - Complete open reading frames (type I), or sequences encoding polypeptides but lacking either a stop codon (type II), a start codon (type III), or both (type IV)
Ribosome Binding Sites (RBS) - Sequence encoding a ribosome binding site, fused 5' to an ORF part
Terminators (TT) - Sequence causing transcription termination
(and more can come later, with their own part definitions and standards rules)
Potter Standard Polylinker
AGATCTPARTSEQUENCE1GGATCC AGATCTPARTSEQUENCE2GGATCC
GlySerAGATCTPARTSEQUENCE1GGATCTPARTSEQUENCE2GGATCC
GAATTCaaaAGATCTPARTSEQUENCE1GGATCCaaaCTCGAG
Type I Coding Sequences
AGATCTATG_MIDDLE_OF_PART_TAAGGATCC
AGATCTGTG_MIDDLE_OF_PART_TGAGGATCC
The start and stop codons are placed directly adjacent to the BglII and BamHI sites, respectively
Start codons are free to be ATG, CTG, TTG, or GTG
Coding Sequences
Type II AGATCTATGAAATTTCCCGGGAAATTTGGATCC
Type III AGATCTCATCATCATCATCATCATTAAGGATCC
Type IV AGATCTAAATTTCCCGGGAAATTTCCCGGATCC
Coding sequences allow the construction of ORF fusions for chimeric and tagged proteins. GlySer scars separate junctions between fused peptides.
Ribosome Binding Sites
AGATCTGAAAGAGGAGAAAGGATCC
The spacing of a ribosome binding site relative to the start codon is fixed. Shown is a (likely) strong RBS
AGATCTATG_ORF_Part_TAAGGATCC
.RBS.
AGATCTGAAAGAGGAGAAAGGATCTATG_ORF_Part_TAAGGATCC
Promoters
+1 |AGATCTTCC_Middle_of_Ptet_TAGAGATACTGAGCACGGATCC
The transcriptional start site (+1) is located at the position directly 5' to the BamHI site (whenever possible)
Terminators
...CUUUCUGCGUUUAUA3' |AGATCTCCA_Middle_of_Ptet_CTTTCTGCGTTTATAGGATCC
The transcriptional termination site is located at the position directly 5' to the BamHI site (whenever possible)