IGEM:MIT/2009/pycA Synthesis Plan

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Synthesis Plan

Plan for synthesis of the pycA gene and expression in yeast. Please email back if anyone notices any major issue before we send out the order for the synthesis.

Construct

The plan is to synthesis the entire pcyA gene, flanked by the biobrick prefix and suffix so that we can insert the gene into our expression vector as well as directly deposit the part into the registry

[Biobrick Prefix] + [Kozak/RE] + [MTS] + [pcyA] + [RE] + [Biobrick Suffix]

Complete Construct Sequence
(Genbank .GB File)

Biobrick Prefix - gaattcgcggccgcttctag

Biobrick Suffix - tactagtagcggccgctgcag

MTS - atgcaacgctccatttttgcgaggttc - (Met - Gln - Arg - Ser - Ile - Phe - Ala - Arg - Phe)

pcyA - See below

Complete Sequence - Image on the right

This will be ligated into the plasmid YCp22FL1 via XhoI + PacI double digestion (Buffer 4 + BSA). This will not only create our desired sticky ends, but also remove the biobrick bookends. See the annotated sequence on the right for a clearer picture.

Vector

YCp22FL1 (Genbank .GB file)

YCp22FL1 is cut at the Kozak sequence and in the middle of the Firefly luciferase via XhoI and PacI. pcyA is then ligated into this region. We transform this into yeast and then pray.

Non-MTS Construct

Because we also want a version of pcyA without the MTS region, the plan is to design primers that allow for this.

Forward (5'-3')

buf kozak       met pcya
gcg ctcgagaacat atg gctgttactgatttgtctttgactaattct

Stats

  • Melting: 55.7 C
  • Worst Hairpin: -1.47 kcal/mol
  • Worst Self-Dimer: -9.96 kcal/mol


Reverse (5'-3', forward direction, needs to be reverse complimented)

pcya                                 PacI     buf
atgtctcaagttttgtttgatgttattcaataataa ttaattaa gcg

Stats

  • Melting: 55.2 C
  • Worst Hairpin: -0.46 kcal/mol
  • Worst Self-Dimer: -13.61 kcal/mol

Notes

Of course, the issue is that these primers are far from ideal. The pacI site (ttaattaa) allows for very strong homodimers. pacI was chosen however because the normal cloning sites, EcoRI and XbaI, are both found in the actual gene itself, and pacI was one of the few available unique restriction sites that was easy to use / readily available.

pcyA Sequence

The optimized and unoptimized pcyA sequence. Original sequence is from the registry, part BBa_I15009

Unoptimized

The unoptimized sequence contains 4 instances of a codon that has the absolute lowest expression level in yeast

Codon Usage Analysis 

>BBa_I15009 Part-only sequence (750 bp)
atggccgtcactgatttaagtttgaccaattcttccctgatgcctacgttgaacccgatgattcaacagttggccctggcgatcgccgctagttggcaaa
gtttacccctcaagccctatcaattgccggaggatttgggctacgtagaaggccgcctggaaggggaaaagttagtgattgaaaatcggtgctaccaaac
gccccagtttcgcaaaatgcatttggagttggccaaggtgggcaaagggttggatattctccactgtgtaatgtttcctgagcctttatacggtctacct
ttgtttggctgtgacattgtggccggccccggtggagtaagtgcggctattgcggatctatcccccacccaaagcgatcgccaattgcccgcagcgtacc
aaaaatcattggcagagctaggccagccagaatttgagcaacaacgggaattgcccccctggggagaaatattttctgaatattgtttattcatccgtcc
cagcaatgtcactgaagaagaaagatttgtacaaagggtagtggactttttgcaaattcattgtcaccaatccatcgttgccgaacccttgtctgaagct
caaactttggagcaccgtcaggggcaaattcattactgccaacaacaacagaaaaatgataaaacccgtcgggtactggaaaaagcttttggggaagctt
gggcggaacggtatatgagccaagtcttatttgatgttatccaataataa

Raw Optimized

Codon Usage Analysis

Agreed to not use 

>Optimized BBa_I15009 (750 bp)
ATGGCTGTTACTGATTTGTCTTTGACTAATTCTTCTTTGATGCCAACTTTGAATCCAATG
ATTCAACAATTGGCTTTGGCTATTGCTGCTTCTTGGCAATCTTTGCCATTGAAACCATAT
CAATTGCCAGAAGATTTGGGTTATGTTGAAGGTAGATTGGAAGGTGAAAAATTGGTTATT
GAAAATAGATGTTATCAAACTCCACAATTTAGAAAAATGCATTTGGAATTGGCTAAAGTT
GGTAAAGGTTTGGATATTTTGCATTGTGTTATGTTTCCAGAACCATTGTATGGTTTGCCA
TTGTTTGGTTGTGATATTGTTGCTGGTCCAGGTGGTGTTTCTGCTGCTATTGCTGATTTG
TCTCCAACTCAATCTGATAGACAATTGCCAGCTGCTTATCAAAAATCTTTGGCTGAATTG
GGTCAACCAGAATTTGAACAACAAAGAGAATTGCCACCATGGGGTGAAATTTTTTCTGAA
TATTGTTTGTTTATTAGACCATCTAATGTTACTGAAGAAGAAAGATTTGTTCAAAGAGTT
GTTGATTTTTTGCAAATTCATTGTCATCAATCTATTGTTGCTGAACCATTGTCTGAAGCT
CAAACTTTGGAACATAGACAAGGTCAAATTCATTATTGTCAACAACAACAAAAAAATGAT
AAAACTAGAAGAGTTTTGGAAAAAGCTTTTGGTGAAGCTTGGGCTGAAAGATATATGTCT
CAAGTTTTGTTTGATGTTATTCAATAATAA

Mr. Gene Optimized

Pushed through GeneArt's optimization server

Parameters

Server was asked to avoid:

  • EcoRI GAATTC
  • Eukaria: (consensus) Splice-Donor (01)
  • Eukaria: (consensus) Splice-Donor (02)
  • Eukaria: poly(A)-site (01)
  • Eukaria: poly(A)-site (02)
  • NotI GCGGCCGC
  • PacI TTAATTAA
  • Prokaria: (consensus) TATA-Box
  • Prokaria: -35 Box (01)
  • Prokaria: -35 Box (02)
  • Prokaria: RBS-Entry (01)
  • Prokaria: RBS-Entry (02)
  • PstI CTGCAG
  • SpeI ACTAGT
  • XbaI TCTAGA
  • XhoI CTCGAG
  • Yeast: poly(A) UE (01)
  • Yeast: poly(A) UE (02)
  • Yeast: Splice Donor (01)
  • Yeast: Splice Donor (02)

Output

>Mr. Gene Optimized BBa_I15009 (750 bp)
ATGGCCGTTACCGATTTGAGTTTGACCAATTCCTCCTTGATGCCAACCTTAAACCCTATGATTCAACAATTGGCTTTGGCTATTGCTGCTTCCTGGCAATCTTTGCCTTTG
AAACCATATCAATTGCCTGAAGATTTGGGTTATGTCGAAGGTAGATTAGAAGGTGAAAAATTGGTTATCGAAAACAGATGCTATCAAACCCCACAATTCAGAAAAATGCAC
TTGGAATTGGCTAAAGTCGGTAAAGGTTTAGACATCTTACACTGTGTCATGTTCCCTGAACCATTGTATGGTTTACCATTATTCGGTTGTGACATCGTTGCTGGTCCTGGT
GGTGTCTCTGCTGCCATTGCCGATTTGTCTCCAACACAATCCGATAGACAATTGCCTGCTGCCTATCAAAAATCCTTGGCCGAATTGGGTCAACCAGAATTTGAACAACAA
AGAGAATTGCCTCCTTGGGGTGAAATTTTCTCCGAATATTGTTTGTTCATTAGACCATCCAACGTCACCGAAGAAGAAAGATTCGTCCAAAGAGTTGTCGACTTCTTACAA
ATCCACTGCCACCAATCCATCGTAGCCGAACCATTATCCGAAGCTCAAACATTGGAACACAGACAAGGTCAAATCCATTATTGCCAACAACAACAAAAAAACGACAAGACT
AGAAGAGTTTTGGAAAAGGCTTTCGGTGAAGCTTGGGCCGAAAGATATATGTCCCAAGTTTTATTCGACGTCATTCAATGATGA

DNA 2.0 Quote Optimized

Received back this quote from DNA 2.0

Sequence

>pycA Optimized (DNA2.0)
ATGGCTGTGACTGATTTGTCATTGACAAACAGTTCTTTGATGCCAACTCTGAACCCAATGATACAACAGCTTGCACTGGCTATTGCTGCTAGTTGGCAATCTCT
ACCTCTTAAACCATACCAATTACCAGAAGATCTGGGTTACGTGGAGGGTAGACTTGAGGGTGAGAAGCTGGTGATTGAGAATAGATGCTATCAAACTCCACAGT
TCAGAAAGATGCACTTGGAGTTAGCTAAAGTTGGTAAAGGGTTAGACATCTTACATTGCGTTATGTTCCCTGAACCTTTGTACGGATTGCCATTGTTTGGTTGT
GATATTGTAGCAGGACCTGGTGGTGTATCCGCTGCCATTGCAGATCTTTCACCAACTCAGTCTGATCGTCAACTACCAGCTGCCTACCAAAAGTCTTTGGCAGA
ATTAGGACAACCAGAGTTCGAACAACAAAGAGAACTGCCACCTTGGGGCGAAATCTTTTCTGAATACTGTTTGTTCATCAGACCATCCAATGTTACCGAGGAAG
AAAGGTTCGTCCAAAGAGTCGTTGATTTCTTGCAAATACATTGTCATCAATCTATTGTTGCCGAACCTTTATCTGAAGCACAAACACTAGAACATAGACAGGGC
CAAATACACTATTGTCAACAACAGCAGAAAAACGATAAGACAAGAAGAGTACTAGAAAAGGCATTTGGGGAGGCTTGGGCAGAAAGATACATGTCACAAGTCCT
ATTTGACGTTATCCAGTAATAA

Raw Output

>Li_NoName_061609_opt
GCGGAATTCGCGGCCGCTTCTAGAGCTCGAGAACATATGGCTGTGACTGATTTGTCATTGACAAACAGTTCTTTGATGCCAACTCTGAACCCAATGATACAACA
GCTTGCACTGGCTATTGCTGCTAGTTGGCAATCTCTACCTCTTAAACCATACCAATTACCAGAAGATCTGGGTTACGTGGAGGGTAGACTTGAGGGTGAGAAGC
TGGTGATTGAGAATAGATGCTATCAAACTCCACAGTTCAGAAAGATGCACTTGGAGTTAGCTAAAGTTGGTAAAGGGTTAGACATCTTACATTGCGTTATGTTC
CCTGAACCTTTGTACGGATTGCCATTGTTTGGTTGTGATATTGTAGCAGGACCTGGTGGTGTATCCGCTGCCATTGCAGATCTTTCACCAACTCAGTCTGATCG
TCAACTACCAGCTGCCTACCAAAAGTCTTTGGCAGAATTAGGACAACCAGAGTTCGAACAACAAAGAGAACTGCCACCTTGGGGCGAAATCTTTTCTGAATACT
GTTTGTTCATCAGACCATCCAATGTTACCGAGGAAGAAAGGTTCGTCCAAAGAGTCGTTGATTTCTTGCAAATACATTGTCATCAATCTATTGTTGCCGAACCT
TTATCTGAAGCACAAACACTAGAACATAGACAGGGCCAAATACACTATTGTCAACAACAGCAGAAAAACGATAAGACAAGAAGAGTACTAGAAAAGGCATTTGG
GGAGGCTTGGGCAGAAAGATACATGTCACAAGTCCTATTTGACGTTATCCAGTAATAATTAATTAATACTAGTAGCGGCCGCTGCAGGCG

>5RE
GCGGAATTCGCGGCCGCTTCTAGAGCTCGAGAACAT

>Li_NoName_061609
ATGGCTGTGACTGATTTGTCATTGACAAACAGTTCTTTGATGCCAACTCTGAACCCAATGATACAACAGCTTGCACTGGCTATTGCTGCTAGTTGGCAATCTCT
ACCTCTTAAACCATACCAATTACCAGAAGATCTGGGTTACGTGGAGGGTAGACTTGAGGGTGAGAAGCTGGTGATTGAGAATAGATGCTATCAAACTCCACAGT
TCAGAAAGATGCACTTGGAGTTAGCTAAAGTTGGTAAAGGGTTAGACATCTTACATTGCGTTATGTTCCCTGAACCTTTGTACGGATTGCCATTGTTTGGTTGT
GATATTGTAGCAGGACCTGGTGGTGTATCCGCTGCCATTGCAGATCTTTCACCAACTCAGTCTGATCGTCAACTACCAGCTGCCTACCAAAAGTCTTTGGCAGA
ATTAGGACAACCAGAGTTCGAACAACAAAGAGAACTGCCACCTTGGGGCGAAATCTTTTCTGAATACTGTTTGTTCATCAGACCATCCAATGTTACCGAGGAAG
AAAGGTTCGTCCAAAGAGTCGTTGATTTCTTGCAAATACATTGTCATCAATCTATTGTTGCCGAACCTTTATCTGAAGCACAAACACTAGAACATAGACAGGGC
CAAATACACTATTGTCAACAACAGCAGAAAAACGATAAGACAAGAAGAGTACTAGAAAAGGCATTTGGGGAGGCTTGGGCAGAAAGATACATGTCACAAGTCCT
ATTTGACGTTATCCAGTAATAA

>3RE
TTAATTAATACTAGTAGCGGCCGCTGCAGGCG

Translation Map
Li_NoName_061609
     1 ATGGCTGTGACTGATTTGTCATTGACAAACAGTTCTTTGATGCCAACTCTGAACCCAATG
     1  M  A  V  T  D  L  S  L  T  N  S  S  L  M  P  T  L  N  P  M 
    61 ATACAACAGCTTGCACTGGCTATTGCTGCTAGTTGGCAATCTCTACCTCTTAAACCATAC
    21  I  Q  Q  L  A  L  A  I  A  A  S  W  Q  S  L  P  L  K  P  Y 
   121 CAATTACCAGAAGATCTGGGTTACGTGGAGGGTAGACTTGAGGGTGAGAAGCTGGTGATT
    41  Q  L  P  E  D  L  G  Y  V  E  G  R  L  E  G  E  K  L  V  I 
   181 GAGAATAGATGCTATCAAACTCCACAGTTCAGAAAGATGCACTTGGAGTTAGCTAAAGTT
    61  E  N  R  C  Y  Q  T  P  Q  F  R  K  M  H  L  E  L  A  K  V 
   241 GGTAAAGGGTTAGACATCTTACATTGCGTTATGTTCCCTGAACCTTTGTACGGATTGCCA
    81  G  K  G  L  D  I  L  H  C  V  M  F  P  E  P  L  Y  G  L  P 
   301 TTGTTTGGTTGTGATATTGTAGCAGGACCTGGTGGTGTATCCGCTGCCATTGCAGATCTT
   101  L  F  G  C  D  I  V  A  G  P  G  G  V  S  A  A  I  A  D  L 
   361 TCACCAACTCAGTCTGATCGTCAACTACCAGCTGCCTACCAAAAGTCTTTGGCAGAATTA
   121  S  P  T  Q  S  D  R  Q  L  P  A  A  Y  Q  K  S  L  A  E  L 
   421 GGACAACCAGAGTTCGAACAACAAAGAGAACTGCCACCTTGGGGCGAAATCTTTTCTGAA
   141  G  Q  P  E  F  E  Q  Q  R  E  L  P  P  W  G  E  I  F  S  E 
   481 TACTGTTTGTTCATCAGACCATCCAATGTTACCGAGGAAGAAAGGTTCGTCCAAAGAGTC
   161  Y  C  L  F  I  R  P  S  N  V  T  E  E  E  R  F  V  Q  R  V 
   541 GTTGATTTCTTGCAAATACATTGTCATCAATCTATTGTTGCCGAACCTTTATCTGAAGCA
   181  V  D  F  L  Q  I  H  C  H  Q  S  I  V  A  E  P  L  S  E  A 
   601 CAAACACTAGAACATAGACAGGGCCAAATACACTATTGTCAACAACAGCAGAAAAACGAT
   201  Q  T  L  E  H  R  Q  G  Q  I  H  Y  C  Q  Q  Q  Q  K  N  D 
   661 AAGACAAGAAGAGTACTAGAAAAGGCATTTGGGGAGGCTTGGGCAGAAAGATACATGTCA
   221  K  T  R  R  V  L  E  K  A  F  G  E  A  W  A  E  R  Y  M  S 
   721 CAAGTCCTATTTGACGTTATCCAGTAATAA
   241  Q  V  L  F  D  V  I  Q  *  * 

Restriction Sites
Name	Seq.	Locations
AatI	AGGCCT	none
AccI	GTMKAC	187
AflII	CTTAAG	none
AgeI	ACCGGT	none
AlwI	GGATC	none
AlwNI	CAGNNNCTG	358
ApaI	GGGCCC	none
ApaLI	GTGCAC	none
AscI	GGCGCGCC	none
AseI	ATTAAT	785, 789
AvaI	CYCGRG	25
AvaII	GGWCC	360
AvrII	CCTAGG	none
BamHI	GGATCC	none
BbsI	GAAGAC	none
BbvI	GCAGC	120(c), 378(c), 426(c), 808(c)
BclI	TGATCA	none
BglI	GCCNNNNNGGC	none
BglII	AGATCT	167, 389
BlpI	GCTNAGC	none
BsaI	GGTCTC	none
BsmAI	GTCTC	none
BsmBI	CGTCTC	none
BstEII	GGTNACC	none
BstXI	CCANNNNNNTGG	none
ClaI	ATCGAT	none
DraIII	CACNNNGTG	none
EagI	CGGCCG	10, 803
EarI	CTCTTC	703(c)
EcoRI	GAATTC	3
EcoRV	GATATC	none
FokI	GGATG	535(c)
FseI	GGCCGGCC	none
HindIII	AAGCTT	none
KasI	GGCGCC	none
KpnI	GGTACC	none
MluI	ACGCGT	none
NarI	GGCGCC	none
NcoI	CCATGG	none
NdeI	CATATG	33
NheI	GCTAGC	none
NotI	GCGGCCGC	9, 802
NsiI	ATGCAT	none
PacI	TTAATTAA	786
PciI	ACATGT	748
PmeI	GTTTAAAC	none
PstI	CTGCAG	809
PvuI	CGATCG	none
PvuII	CAGCTG	424
SacI	GAGCTC	22
SacII	CCGCGG	none
SalI	GTCGAC	none
SapI	GCTCTTC	none
SfiI	GGCCNNNNNGGCC	none
SgrAI	CRCCGGYG	none
SmaI	CCCGGG	none
SpeI	ACTAGT	795
SphI	GCATGC	none
SspI	AATATT	none
StuI	AGGCCT	none
SwaI	ATTTAAAT	none
TliI	CTCGAG	25
XbaI	TCTAGA	18
XhoI	CTCGAG	25
XmaI	CCCGGG	none
XmnI	GAANNNNTTC	none
GCRun8	SSSSSSSS	8, 9, 802
T7ClassII	YATCTGTW	none
W6	WWWWWW	780, 781, 782, 783, 784, 785, 786, 787, 788, 789, 790
SpliceDonor	AGGTRAG	none
SpliceDonor2	GGTRAGT	none
SpliceAcc	YYYNYAGGW	none
SpliceAcc2	YNCAGGW	none
RNADestab	ATTTA	none
A6	AAAAAA	none
C6	CCCCCC	none
G6	GGGGGG	none
T6	TTTTTT	none
ATRich	AAWWAA	784, 788, 786(c)
ATRich2	ATATATATA	none
PolyA2	AATGAA	none
PolyA3	AAATGGAAA	none
PolyA4	AATGGAAATG	none
SpliceDnr3	GGTAAG	none
SpliceAcc3	YYYNCAGRW	none

Codon Usage Table
AmAcid	Codon	Number	/1000	Fraction

END	TAA	2	8.0	1.0
END	TGA	0	0.0	0.0
END	TAG	0	0.0	0.0

ALA	GCT	8	32.0	0.44
ALA	GCA	7	28.0	0.38
ALA	GCC	3	12.0	0.16
ALA	GCG	0	0.0	0.0

CYS	TGT	4	16.0	0.66
CYS	TGC	2	8.0	0.33

ASP	GAT	7	28.0	0.77
ASP	GAC	2	8.0	0.22

GLU	GAA	14	56.0	0.63
GLU	GAG	8	32.0	0.36

PHE	TTC	6	24.0	0.6
PHE	TTT	4	16.0	0.4

GLY	GGT	7	28.0	0.5
GLY	GGA	3	12.0	0.21
GLY	GGC	2	8.0	0.14
GLY	GGG	2	8.0	0.14

HIS	CAT	4	16.0	0.66
HIS	CAC	2	8.0	0.33

ILE	ATC	4	16.0	0.33
ILE	ATT	5	20.0	0.41
ILE	ATA	3	12.0	0.25

LYS	AAG	5	20.0	0.55
LYS	AAA	4	16.0	0.44

LEU	TTG	10	40.0	0.33
LEU	TTA	6	24.0	0.2
LEU	CTA	5	20.0	0.16
LEU	CTT	4	16.0	0.13
LEU	CTG	5	20.0	0.16
LEU	CTC	0	0.0	0.0

MET	ATG	6	24.0	1.0

ASN	AAC	3	12.0	0.6
ASN	AAT	2	8.0	0.4

PRO	CCA	11	44.0	0.64
PRO	CCT	6	24.0	0.35
PRO	CCC	0	0.0	0.0
PRO	CCG	0	0.0	0.0

GLN	CAA	17	68.0	0.70
GLN	CAG	7	28.0	0.29

ARG	AGA	10	40.0	0.83
ARG	AGG	1	4.0	0.08
ARG	CGT	1	4.0	0.08
ARG	CGA	0	0.0	0.0
ARG	CGC	0	0.0	0.0
ARG	CGG	0	0.0	0.0

SER	TCT	7	28.0	0.5
SER	TCA	3	12.0	0.21
SER	TCC	2	8.0	0.14
SER	AGT	2	8.0	0.14
SER	AGC	0	0.0	0.0
SER	TCG	0	0.0	0.0

THR	ACA	3	12.0	0.37
THR	ACT	4	16.0	0.5
THR	ACC	1	4.0	0.12
THR	ACG	0	0.0	0.0

VAL	GTT	6	24.0	0.4
VAL	GTC	3	12.0	0.2
VAL	GTA	3	12.0	0.2
VAL	GTG	3	12.0	0.2

TRP	TGG	3	12.0	1.0

TYR	TAC	6	24.0	0.75
TYR	TAT	2	8.0	0.25

GC Percentage: 43.39853300733496%

Repeats greater than or equal to 10, in Li_NoName_061609_opt

AGCGGCCGCT (10 bases)
802, 811
802, 811

ATTAATTAAT (10 bases)
786, 795
786, 795

TAATTAATTA (10 bases)
784, 793
784, 793

Cost / Logistics

We have a 2,500 bp limit for the special rates of $0.2/bp.

The construct itself is 843bp. At 0.2$/bp, it is roughly 170 dollars. Plus $35 for shipping, total ends up at $204

Turnaround is ~ 15 days.

This also leaves us with roughly 1657bp left for additional synthesis at the special iGEM price.

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