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Missouri Western State University & Davidson College

Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

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Page 1: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Missouri Western State University & Davidson College 

Page 2: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Human Prac*ces 

Page 3: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Two Synthe*c Biology Surveys 1.  Faculty (high school & college/university) 

– Familiarity and knowledge 

– Currently teaching? – What support do you need? 

2.  General public – Create vs. Construct introduc*ons – Opinion of synthe*c biology – Should it be taught in schools?  

Page 4: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Faculty Survey Results High School  College/University 

•  289 total responses 

•  Avg. teaching 15.5 years 

•  88% teach at public schools 

•  6% self‐assessed knowledgeable 

•  0.7% deep knowledge 

•  3.5% teaching it 

•  1.4% on tests 

•  192 total responses 

•  Avg. teaching 14.5 year 

•  65% teach at public schools 

•  12% self‐assessed knowledgeable 

•  7% deep knowledge 

•  6% teaching it 

•  3% on tests 

Page 5: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Faculty Survey Results High School 

•  289 total responses 

•  Avg. teaching 15.5 years 

•  88% teach at public schools 

•  6% self‐assessed knowledgeable 

•  0.7% deep knowledge 

•  3.5% teaching it 

•  1.4% on tests 

•  192 total responses 

•  Avg. teaching 14.5 year 

•  65% teach at public schools 

•  12% self‐assessed knowledgeable 

•  7% deep knowledge 

•  6% teaching it 

•  3% on tests 

College/University 

Page 6: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

General Public Survey Results 

Synthe*c biology uses molecular methods to create modified living organisms…. 

Synthe*c biology uses molecular methods to construct DNA‐based devices…. 

Measured “religiosity” for each person 

Page 7: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

General Public Survey Results 

Create  

        Percep*on Scores for Each Manipula*on Percep

*on of synthe*

c biology 

Construct 

p < 0.008 

+/‐ 95% conf. 

Page 8: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

General Public Survey Results 

high religiosity 

      Create  Manipula*on 

   Construct Manipula*on 

Interac*on of Manipula*on and Religiosity Favorability towards synthe*

c biology 

low religiosity 

Page 9: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Defining  the  

Sa*sfiability Problem  

Page 10: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

The SAT Problem 

Page 11: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

The SAT Problem 

Page 12: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

The SAT Problem 

Page 13: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

The SAT Problem 

Page 14: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

The SAT Problem 

Page 15: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Some “Key” Terms 

Variable  Clause 

Input 

Literal 

Page 16: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Mathema*cal Transla*on 

(G or B) and (G or b) and (G or  ) and (g or  ) 

What is the maximum number of clauses sa*sfied by any input? 

Is there an input that sa*sfies all clauses? 

SAT 

Max SAT 

Page 17: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

History and Significance 

Page 18: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

NP Complete Problems 

SAT (1971)

Hamiltonian Path Problem

Pancake Problem

Traveling Salesperson

Knapsack Problem

Optimal Linear

Arrangement

Minesweeper

Chromatic Number

0-1 Integer Programming

Page 19: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Applica*ons 

•  Electronics (e.g., equivalence checking) •  Ar*ficial Intelligence (robot planning) •  Bioinforma*cs (Haplotype inference) 

Page 20: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Science Vol 288 19 May 2000 

DNA Compu*ng Approach 

Page 21: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Classifying SAT Problems 

Page 22: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Coarse Distribu*ons 

Page 23: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Fine Distribu*ons 

doubledouble

0 1 1 double single

2 0 2 single single

2 3 1

Exactly 2 of 3 clauses sa*sfied, but differently  

Page 24: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Biological Implementa*on 

Page 25: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Central Dogma 

DNA  

mRNA  

Protein  

aug ccc uac uca cua ccu aua ccg cau  

M   P   Y    S    H    P    I    P    H  

transla*on 

atgccctactcactacctatagcgcat  

transcrip*on 

Page 26: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Frameshii Muta*on 

DNA  

mRNA  

Protein  

aug ccc uac uca cua ccu aua ccg cau  

M   P   Y    S    H    P    I    P    H  

transcrip*on 

transla*on 

atgccctactcactacctatagcgcat  DNA  

mRNA  

Protein  

aug ccc UCu acu cac uac cua uac cgc au  

atgcccTCtactcactacctatagcgcat  

M   P   S     T    H    Y   H    Y   R  

Page 27: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Frameshii Suppression 

DNA  

mRNA  

Protein  

aug ccc uac uca cua ccu aua ccg cau  

M   P   Y    S    H    P    I    P    H  

atgccctactcactacctatagcgcat  DNA  

Protein  

aug cccUC uac uca cua ccu aua ccg cau  

atgcccTCtactcactacctatagcgcat  

M     S       Y    S    H    P    I    P   H  

        5 base  suppressor tRNA 

Page 28: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Physical Model of Suppressor tRNA 

Milwaukee School of Engineering Center for Biomolecular Modeling 

Custom Designed Educa*onal Tool 

Page 29: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Coding 2‐SAT Logical Clause 

   11 base pairs 

ATG + 5 bp + 1 bp + 5 bp 

ATG NNNNN g NNNNN 

1 logical clause 

Page 30: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

ATG NNNNN gNN NNN 

ATG NNN NNg NNNNN 

ATG NNN NNg NNN 

Coding 2‐SAT Logical Clause 

sa*sfied 

Page 31: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

ATG NNNNN gNN NNN 

ATG NNN NNg NNNNN 

ATG NNN NNg NNN 

Coding 2‐SAT Logical Clause 

sa*sfied 

sa*sfied 

OR 

Page 32: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

ATG NNNNN gNN NNN 

ATG NNN NNg NNNNN 

ATG NNN NNg NNN 

Coding 2‐SAT Logical Clause 

sa*sfied 

sa*sfied 

OR 

no sa*sfac*on 

Page 33: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

In frame if, and only if,  exactly 2 clauses sa*sfied. 

Coding Mul*ple 2‐SAT Logical Clauses 

11 bp 

ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4 

3 + (6 x 11) + 2 + 2 = 73 bp  

Page 34: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Coding Mul*ple 2‐SAT Logical Clauses 

✓  ✓ ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4  sa*sfied 

Page 35: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Coding Mul*ple 2‐SAT Logical Clauses 

✓  ✓ 

✓  ✓ ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4  sa*sfied 

ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4  sa*sfied 

Page 36: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Coding Mul*ple 2‐SAT Logical Clauses 

✓  ✓ 

✓  ✓ 

✓ 

ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4  sa*sfied 

ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4  sa*sfied 

ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4  not sa*sfied 

Page 37: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Coding Mul*ple 2‐SAT Logical Clauses 

✓  ✓ 

✓  ✓ 

✓ 

ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4  sa*sfied 

ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4  sa*sfied 

ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4  not sa*sfied 

ATG LC1 LC2 gg LC2 LC3 gg LC3 LC4  not sa*sfied 

Page 38: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Constructed Eleven 5 base tRNAs 

Anderson et al., 2002. Chemistry & Biology. 9: 237‐244 

New Registry Parts 

Page 39: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Constructed Eleven Frameshii Reporters 

CCCTC 

New Registry Parts 

Page 40: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

55 115 

816 

497 

823 

393 

271 

64 

514 588 

133 81 

100 

200 

300 

400 

500 

600 

700 

800 

900 

Occurrences of 5mers in Genome 

Page 41: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Choice of Promoters 

20 

40 

60 

80 

100 

120 

140 

Normalized

 RFP Fluorescence 

Page 42: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Choice of Promoters 

20 

40 

60 

80 

100 

120 

140 

Normalized

 RFP Fluorescence 

Page 43: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Characterized Exis*ng Part 

prone to spontaneous inser*ons 

Page 44: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Suppressor tRNA Test Module v1.0 CCCTC 

Page 45: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Suppressor tRNA Test Module v1.0 CCCTC 

Page 46: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Biological Engineering Best Prac*ce 

Construct 

Design 

Test 

Redesign 

Page 47: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Suppressor tRNA Test Module v2.0 CCCTC 

pTet 

Page 48: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Suppressor tRNA Test Module v2.0 CCCTC 

pTet 

Page 49: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Constructs % suppression Us Anderson

pBad-CCACU-pLac-RBS-CCACU-RFP 0.41 7.4

pTet-CCACU-pLac-RBS-CCACU-RFP 1.39 7.4

pLac-RBS-CCACU-RFP-pTet-CCACU 1.94 7.4

pBad-CGGUC-pLac-RBS-CGGUC-RFP 0.21 4.5

pTet-CGGUC-pLac-RBS-CGGUC-RFP 0.39 4.5

pLac-RBS-CGGUC-RFP-pTet-CGGUC 0.79 4.5

pBad-CCCUC-pLac-RBS-CCCUC-RFP 0.30 3.8

pTet-CCCUC-pLac-RBS-CCCUC-RFP 0.37 3.8

pLac-RBS-CCCUC-RFP-pTet-CCCUC 0.36 3.8

pBad-CCAUC-pLac-RBS-CCAUC-RFP 0.27 5.6

pBad-CUAGU-pLac-RBS-CUAGU-RFP 0.33 12.0

Amount of tRNA is Cri*cal 

Page 50: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Suppressor tRNA Test Module v3.0 

Constructs % suppression Us Anderson

pLac-RBS-CCACC-RFP-CCACC_tRNA 1.3 1.6

pLac-RBS-CCACC-RFP-CCAAU_tRNA 1.0 4.4

pLac-RBS-CCACC-RFP-CUACC_tRNA 0.9 7.4

CCACC 

Page 51: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Automa*on Scale for Compu*ng  

Human ParPcipaPon 

Bacterial ParPcipaPon 

Total Com

pu*n

Automa*on Level 

Page 52: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

One Literal per Clone 

Lite

ral 1

Li

tera

l 2

a OR b  a OR b’  b OR c’  a’ OR c 

a a 

b’ 

b’ 

b’ 

c’ 

c’ 

c’ 

a’ 

a’ 

a’ 

a’ 

c’ 

Page 53: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

One Clause per Clone 

a’ 

c’ 

a OR b  a OR b’  b OR c’  a’ OR c 

Solu*on to Max Sat = # of columns with posi*ve report 

Page 54: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Mul*ple Clauses per Clone 

a’ 

c’ 

Exactly 1  Exactly 2  Exactly 3  Exactly 4 

(a OR b) AND (a OR b’) AND (b OR c’) AND (a’ OR c) 

Solu*on to Max Sat 

Page 55: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Max SAT in Popula*on 

a’ 

c’ 

(a OR b) AND (a OR b’) AND (b OR c’) AND (a’ OR c) 

Solu*on to Max Sat = Number of different reporters expressed 

Page 56: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Max SAT in Each Clone 

a’ 

c’ 

(a OR b) AND (a OR b’) AND (b OR c’) AND (a’ OR c) 

Solu*on to Max Sat = Number of different reporters expressed 

Page 57: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Bacterial Automa*on Scale 

a’  b  c’ 

(a OR b) AND (a OR b’) AND (b OR c’) AND (a’ OR c) 

Automa*on Level 

Page 58: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Acknowledgements  •  Chris Anderson UC Berkeley •  Tim Herman and MSOE CBM •  Kyri Bye‐Nagel Davidson College •  Funding from 

– NSF DMS 0733952 and 0733955 – HHMI grant #52006292 – Davidson DRI and Mar*n Genomics Program – Missouri Western Founda*on and Office of Academic and Student Affairs 

Page 59: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Missouri Western State University & Davidson College 

Page 60: Missouri Western State University & Davidson College2009.igem.org/files/presentation/MoWestern_Davidson.pdf · Faculty Survey Results High School College/University • 289 total

Exactly 2 out of 4 clauses sa*sfied 

aug VVVVV gVV VVV XXX XXg XXX XXg gXX XXX gXX XXX YYYYY gYY YYY ggY YYY YgY YYY YZZ ZZZ gZZ ZZZ 

aug VVVVV gVV VVV XXXXX gXX XXX ggX XXX XgX XXX XYY YYY gYY YYY ggY YYY YgY YYY YZZ ZZZ gZZ ZZZ

aug VVVVV gVV VVV XXX XXg XXX XXg gXX XXX gXX XXX YYY YYg YYY YYg gYY YYY gYY YYY ZZZZZ gZZ ZZZ 

1 and 2 

1 and 3 

1 and 4