Team:UC-Santa Cruz/Project/Pumps

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Cloning of a Newly discovered Na pumping Halorhodopsin from marine flavobacterium Krokinobacter eikastus

 

We used a Gibson reation with IDT G Blocks and IGEM pSB1C3 to clone KR2 halorhodopsin into pSB1C3 BioBrick backbone.

 

Key Reference- A light-driven sodium ion pump in marine bacteria. Inoue et al. Nature Communications DOI: 10.1038/ncomms2689 April 9, 2013.

 

DNA Sequence KR2 Na pumping halorhodopsin-

ATGACACAAGAACTAGGGAATGCCAATTTCGAAAATTTCATTGGAGCTACAG
AAGGATTTTCTGAAATTGCTTATCAATTTACATCACATATCCTTACGTTAGGGTACGCAGTGATGCTTGCAGGATT
ACTATACTTTATCCTTACCATCAAAAATGTAGATAAAAAATTCCAAATGTCGAACATATTATCAGCTGTGGTAATG
GTATCGGCATTTTTGCTATTATATGCGCAGGCACAAAACTGGACATCCAGTTTTACCTTTAATGAAGAAGTAGGAA
GATATTTTTTAGATCCGAGTGGTGATCTATTTAATAACGGATATCGCTATCTTAACTGGCTCATCGATGTACCTAT
GCTTCTCTTTCAAATTCTATTTGTAGTAAGTTTAACTACTTCAAAATTTAGCTCTGTACGTAACCAATTCTGGTTT
TCTGGGGCAATGATGATTATTACTGGGTACATTGGACAGTTTTATGAGGTAAGTAACTTGACTGCCTTTTTAGTAT
GGGGAGCTATTTCATCTGCTTTTTTCTTCCATATTTTATGGGTTATGAAGAAGGTAATTAATGAAGGAAAAGAGGG
GATTTCCCCAGCAGGACAAAAAATACTTTCTAATATCTGGATCTTATTTTTAATATCATGGACTTTATATCCAGGA
GCTTACTTAATGCCATACCTTACTGGAGTAGACGGATTTTTATATAGTGAAGATGGCGTGATGGCTAGACAACTAG
TATACACTATTGCAGATGTAAGTTCTAAAGTTATCTATGGTGTATTATTAGGTAACCTAGCAATTACATTAAGTAA
AAACAAAGAGTTGGTTGAAGCAAATAGCTAA

 

Protein Sequence KR2 Na pumping halorhodopsin-

MTQELGNANFENFIGATEGFSEIAYQFTSHILTLGYAVMLAGLLYFILTIKN
VDKKFQMSNILSAVVMVSAFLLLYAQAQNWTSSFTFNEEVGRYFLDPSGDLFNNGYRYLNWLIDVPMLLFQILFVV
SLTTSKFSSVRNQFWFSGAMMIITGYIGQFYEVSNLTAFLVWGAISSAFFFHILWVMKKVINEGKEGISPAGQKIL
SNIWILFLISWTLYPGAYLMPYLTGVDGFLYSEDGVMARQLVYTIADVSSKVIYGVLLGNLAITLSKNKELVEANS*

 

Length: 280

Molecular weight: 31.524 kDa

Isoelectric point: 4.96

 

The codon Usage table for Caulobacter crescentus-

 

Amino Acid

Codon

Number/ Genome 

#/1000

Fraction

Ala

GCG

57020

46.06

0.334895631

Ala

GCA

3967

3.2

0.023299386

Ala

GCT

10175

8.22

0.059760839

Ala

GCC

99100

80.04

0.582044144

Arg

AGG

2701

2.18

0.029839039

Arg

AGA

1059

0.86

0.011699201

Arg

CGG

19055

15.39

0.210508291

Arg

CGA

4608

3.72

0.05090644

Arg

CGT

10018

8.09

0.110672897

Arg

CGC

53078

42.87

0.586374131

Asn

AAT

5773

4.66

0.196547733

Asn

AAC

23599

19.06

0.803452267

Asp

GAT

16529

13.35

0.231087561

Asp

GAC

54998

44.42

0.768912439

Cys

TGT

1309

1.06

0.142732526

Cys

TGC

7862

6.35

0.857267474

End

TGA

1799

1.45

0.472550565

End

TAG

1247

1.01

0.327554505

End

TAA

761

0.61

0.19989493

Gln

CAG

34155

27.59

0.859829318

Gln

CAA

5568

4.5

0.140170682

Glu

GAG

47647

38.48

0.713289121

Glu

GAA

19152

15.47

0.286710879

Gly

GGG

13983

11.29

0.126510929

Gly

GGA

5358

4.33

0.048476404

Gly

GGT

11281

9.11

0.102064635

Gly

GGC

79906

64.54

0.722948031

His

CAT

6487

5.24

0.293343583

His

CAC

15627

12.62

0.706656417

Ile

ATA

790

0.64

0.014615555

Ile

ATT

3549

2.87

0.065658995

Ile

ATC

49713

40.15

0.91972545

Leu

TTG

8478

6.85

0.068407378

Leu

TTA

427

0.34

0.003445382

Leu

CTG

84529

68.27

0.68204851

Leu

CTA

1742

1.41

0.014055868

Leu

CTT

7698

6.22

0.062113706

Leu

CTC

21060

17.01

0.169929156

Lys

AAG

40138

32.42

0.924284991

Lys

AAA

3288

2.66

0.075715009

Met

ATG

26760

21.61

1

Phe

TTT

5212

4.21

0.119489213

Phe

TTC

38407

31.02

0.880510787

Pro

CCG

37265

30.1

0.552000474

Pro

CCA

2760

2.23

0.040883438

Pro

CCT

4338

3.5

0.064258099

Pro

CCC

23146

18.7

0.342857989

Ser

AGT

1687

1.36

0.026704447

Ser

AGC

20348

16.44

0.322099631

Ser

TCG

26206

21.17

0.41482912

Ser

TCA

2127

1.72

0.033669447

Ser

TCT

2144

1.73

0.03393855

Ser

TCC

10661

8.61

0.168758805

Thr

ACG

20611

16.65

0.318075896

Thr

ACA

1775

1.43

0.027392398

Thr

ACT

1768

1.43

0.027284372

Thr

ACC

40645

32.83

0.627247334

Trp

TGG

17312

13.98

1

Tyr

TAT

11882

9.6

0.459918715

Tyr

TAC

13953

11.27

0.540081285

Val

GTG

37323

30.15

0.397755611

Val

GTA

1517

1.23

0.016166848

Val

GTT

6714

5.42

0.07155189

Val

GTC

48280

39

0.514525652

 

 

Codon optimized sequence for KR2 Na pumping halorhodopsin

 

ATGACGCAAGAACTGGGGAATGCCAATTTCGAAAATTTCATCGGTGCGACCG
AAGGCTTTAGCGAAATCGCCTATCAATTTACGTCGCATATCCTCACGCTGGGGTACGCGGTGATGCTCGCCGGGCT
GCTCTACTTTATCCTGACCATCAAGAATGTCGATAAGAAGTTCCAAATGTCGAACATCCTCAGCGCGGTGGTCATG
GTGTCGGCCTTTCTGCTCCTGTATGCGCAGGCGCAAAACTGGACCTCCTCGTTTACCTTTAATGAAGAAGTCGGTC
GTTATTTTCTCGATCCGAGCGGTGATCTGTTTAATAACGGCTATCGCTATCTCAACTGGCTCATCGATGTGCCCAT
GCTGCTCTTTCAAATCCTGTTTGTCGTGTCGCTCACGACCAGCAAGTTTAGCTCGGTCCGTAACCAATTCTGGTTT
AGCGGGGCCATGATGATCATCACGGGGTACATCGGGCAGTTTTATGAGGTGTCGAACCTGACCGCCTTTCTCGTCT
GGGGTGCGATCAGCTCGGCCTTTTTCTTCCATATCCTGTGGGTGATGAAGAAGGTCATCAATGAAGGCAAGGAGGG
GATCTCCCCGGCGGGGCAAAAGATCCTCAGCAATATCTGGATCCTGTTTCTCATCTCGTGGACGCTGTATCCCGGT
GCCTACCTCATGCCGTACCTGACCGGCGTGGACGGGTTTCTCTATAGCGAAGATGGCGTGATGGCGCGCCAACTGG
TCTACACGATCGCCGATGTGTCGAGCAAGGTCATCTATGGTGTGCTCCTGGGTAACCTCGCGATCACCCTGTCGAA
GAACAAGGAGCTCGTCGAAGCCAATAGCTAA

 

Protein Sequence for codon optimized KR2 Na pumping halorhodopsin-

MTQELGNANFENFIGATEGFSEIAYQFTSHILTLGYAVMLAGLLYFILTIKN
VDKKFQMSNILSAVVMVSAFLLLYAQAQNWTSSFTFNEEVGRYFLDPSGDLFNNGYRYLNWLIDVPMLLFQILFVV
SLTTSKFSSVRNQFWFSGAMMIITGYIGQFYEVSNLTAFLVWGAISSAFFFHILWVMKKVINEGKEGISPAGQKIL
SNIWILFLISWTLYPGAYLMPYLTGVDGFLYSEDGVMARQLVYTIADVSSKVIYGVLLGNLAITLSKNKELVEANS*

 

Alignment of two protein sequences, one wild type and one codon optimized for Caulobacter (to confirm we have the same protein)

 

MTQELGNANFENFIGATEGFSEIAYQFTSHILTLGYAVMLAGLLYFILTIKN
VDKKFQMSNILSAVVMVSAFLLLYAQAQNWTSSFTFNEEVGRYFLDPSGDLFNNGYRYLNWLIDVPMLLFQILFVV
SLTTSKFSSVRNQFWFSGAMMIITGYIGQFYEVSNLTAFLVWGAISSAFFFHILWVMKKVINEGKEGISPAGQKIL
SNIWILFLISWTLYPGAYLMPYLTGVDGFLYSEDGVMARQLVYTIADVSSKVIYGVLLGNLAITLSKNKELVEANS
*

MTQELGNANFENFIGATEGFSEIAYQFTSHILTLGYAVMLAGLLYFILTIKN
VDKKFQMSNILSAVVMVSAFLLLYAQAQNWTSSFTFNEEVGRYFLDPSGDLFNNGYRYLNWLIDVPMLLFQILFVV
SLTTSKFSSVRNQFWFSGAMMIITGYIGQFYEVSNLTAFLVWGAISSAFFFHILWVMKKVINEGKEGISPAGQKIL
SNIWILFLISWTLYPGAYLMPYLTGVDGFLYSEDGVMARQLVYTIADVSSKVIYGVLLGNLAITLSKNKELVEANS
*

 

BioBrick pSB1C3 sequence with KR2 inserted- 2913 bp.

 

TACTAGTAGCGGCCGCTGCAGTCCGGCAAAAAAGGGCAAGGTGTCACCACCC
TGCCCTTTTTCTTTAAAACCGAAAAGATTACTTCGCGTTATGCAGGCTTCCTCGCTCACTGACTCGCTGCGCTCGG
TCGTTCGGCTGCGGCGAGCGGTATCAGCTCACTCAAAGGCGGTAATACGGTTATCCACAGAATCAGGGGATAACGC
AGGAAAGAACATGTGAGCAAAAGGCCAGCAAAAGGCCAGGAACCGTAAAAAGGCCGCGTTGCTGGCGTTTTTCCAC
AGGCTCCGCCCCCCTGACGAGCATCACAAAAATCGACGCTCAAGTCAGAGGTGGCGAAACCCGACAGGACTATAAA
GATACCAGGCGTTTCCCCCTGGAAGCTCCCTCGTGCGCTCTCCTGTTCCGACCCTGCCGCTTACCGGATACCTGTC
CGCCTTTCTCCCTTCGGGAAGCGTGGCGCTTTCTCATAGCTCACGCTGTAGGTATCTCAGTTCGGTGTAGGTCGTT
CGCTCCAAGCTGGGCTGTGTGCACGAACCCCCCGTTCAGCCCGACCGCTGCGCCTTATCCGGTAACTATCGTCTTG
AGTCCAACCCGGTAAGACACGACTTATCGCCACTGGCAGCAGCCACTGGTAACAGGATTAGCAGAGCGAGGTATGT
AGGCGGTGCTACAGAGTTCTTGAAGTGGTGGCCTAACTACGGCTACACTAGAAGAACAGTATTTGGTATCTGCGCT
CTGCTGAAGCCAGTTACCTTCGGAAAAAGAGTTGGTAGCTCTTGATCCGGCAAACAAACCACCGCTGGTAGCGGTG
GTTTTTTTGTTTGCAAGCAGCAGATTACGCGCAGAAAAAAAGGATCTCAAGAAGATCCTTTGATCTTTTCTACGGG
GTCTGACGCTCAGTGGAACGAAAACTCACGTTAAGGGATTTTGGTCATGAGATTATCAAAAAGGATCTTCACCTAG
ATCCTTTTAAATTAAAAATGAAGTTTTAAATCAATCTAAAGTATATATGAGTAAACTTGGTCTGACAGCTCGAGGC
TTGGATTCTCACCAATAAAAAACGCCCGGCGGCAACCGAGCGTTCTGAACAAATCCAGATGGAGTTCTGAGGTCAT
TACTGGATCTATCAACAGGAGTCCAAGCGAGCTCGATATCAAATTACGCCCCGCCCTGCCACTCATCGCAGTACTG
TTGTAATTCATTAAGCATTCTGCCGACATGGAAGCCATCACAAACGGCATGATGAACCTGAATCGCCAGCGGCATC
AGCACCTTGTCGCCTTGCGTATAATATTTGCCCATGGTGAAAACGGGGGCGAAGAAGTTGTCCATATTGGCCACGT
TTAAATCAAAACTGGTGAAACTCACCCAGGGATTGGCTGAGACGAAAAACATATTCTCAATAAACCCTTTAGGGAA
ATAGGCCAGGTTTTCACCGTAACACGCCACATCTTGCGAATATATGTGTAGAAACTGCCGGAAATCGTCGTGGTAT
TCACTCCAGAGCGATGAAAACGTTTCAGTTTGCTCATGGAAAACGGTGTAACAAGGGTGAACACTATCCCATATCA
CCAGCTCACCGTCTTTCATTGCCATACGAAATTCCGGATGAGCATTCATCAGGCGGGCAAGAATGTGAATAAAGGC
CGGATAAAACTTGTGCTTATTTTTCTTTACGGTCTTTAAAAAGGCCGTAATATCCAGCTGAACGGTCTGGTTATAG
GTACATTGAGCAACTGACTGAAATGCCTCAAAATGTTCTTTACGATGCCATTGGGATATATCAACGGTGGTATATC
CAGTGATTTTTTTCTCCATTTTAGCTTCCTTAGCTCCTGAAAATCTCGATAACTCAAAAAATACGCCCGGTAGTGA
TCTTATTTCATTATGGTGAAAGTTGGAACCTCTTACGTGCCCGATCAACTCGAGTGCCACCTGACGTCTAAGAAAC
CATTATTATCATGACATTAACCTATAAAAATAGGCGTATCACGAGGCAGAATTTCAGATAAAAAAAATCCTTAGCT
TTCGCTAAGGATGATTTCTGGAATTCGCGGCCGCTTCTAGAG/ATGACGCAAGAACTGGGGAATGCCAATTTCGAA
AATTTCATCGGTGCGACCGAAGGCTTTAGCGAAATCGCCTATCAATTTACGTCGCATATCCTCACGCTGGGGTACG
CGGTGATGCTCGCCGGGCTGCTCTACTTTATCCTGACCATCAAGAATGTCGATAAGAAGTTCCAAATGTCGAACAT
CCTCAGCGCGGTGGTCATGGTGTCGGCCTTTCTGCTCCTGTATGCGCAGGCGCAAAACTGGACCTCCTCGTTTACC
TTTAATGAAGAAGTCGGTCGTTATTTTCTCGATCCGAGCGGTGATCTGTTTAATAACGGCTATCGCTATCTCAACT
GGCTCATCGATGTGCCCATGCTGCTCTTTCAAATCCTGTTTGTCGTGTCGCTCACGACCAGCAAGTTTAGCTCGGT
CCGTAACCAATTCTGGTTTAGCGGGGCCATGATGATCATCACGGGGTACATCGGGCAGTTTTATGAGGTGTCGAAC
CTGACCGCCTTTCTCGTCTGGGGTGCGATCAGCTCGGCCTTTTTCTTCCATATCCTGTGGGTGATGAAGAAGGTCA
TCAATGAAGGCAAGGAGGGGATCTCCCCGGCGGGGCAAAAGATCCTCAGCAATATCTGGATCCTGTTTCTCATCTC
GTGGACGCTGTATCCCGGTGCCTACCTCATGCCGTACCTGACCGGCGTGGACGGGTTTCTCTATAGCGAAGA
TGGCGTGATGGCGCGCCAACTGGTCTACACGATCGCCGATGTGTCGAGCAAGGTCATCTATGGTGTGCTCCTGGGT
AACCTCGCGATCACCCTGTCGAAGAACAAGGAGCTCGTCGAAGCCAATAGCTAA/