Difference between revisions of "Dwilliams week 4 assignment"

Latest revision as of 06:45, 20 September 2013

1.(a) The infA gene in E. coli K12 with all tags

ttttcaccacaagaatgaatgttttcggcacatttctccccagagtgttataattgcggtcgcagagttggttacgctcattaccccgctgccgataaggaatttttcgcgtcaggtaacgcccatcgtttatctca
ccgctcccttatacgttgcgcttttggtgcggcttagccgtgtgttttcggagtaatgtgccgaacctgtttgttgcgatttagcgcgcaaatc <minus35box>tttact</minus35box> 
tatttacagaacttcgg <minus10box>cattat</minus10box> cttgc <tss>c</tss> ggttcaaattacggtagtgatacccca <rbs>gagg</rbs>
attag <start_codon>atg</start_codon> 
gccaaagaagacaatattgaaatgcaaggtaccgttcttgaaacgttgcctaataccatgttccgcgtagagttagaaaacggtcacgtggttactgcacacatctccggtaaaatgcgcaaaaactacatccgcat
cctgacgggcgacaaagtgactgttgaactgaccccgtacgacctgagcaaaggccgcattgtcttccgtagtcgc <stop_codon>tga</stop_codon> 
ttgttttaccgcctgatgggcgaagagaaagaacgagt <terminator>aaaaggtcggtttaaccggcctttt</terminator> tattttat

(b) Determined by Piped Sequence

 cat infA-E.coli-K12.txt | sed "s/cat[at]at/ <minus10box>&<\/minus10box> /g" | 
 sed -r "s/.{17} <minus10box/<\/minus35box> &/g" | sed "s/tt[gt]ac[at]<\/minus35box> / <minus35box>&/g" | 
 sed -r "s/\/minus10box> .{6}/&<\/tss> /g" | sed "s/.<\/tss> / <tss>&/g" | sed "s/gagg/ <rbs>&<\/rbs>/g" | 
 sed "s/<\/rbs>/&\n/g" | sed "2s/atg/ <start_codon>&<\/start_codon> /1" | 
 sed -r "2s/<\/start_codon> .{3}*t[ag][ag]/&<\/stop_codon> /g" | sed "s/...<\/stop_codon> / <stop_codon>&/g" | 
 sed "2s/aaaaggt/ <terminator>&/g" | sed "2s/gcctttt/&<\/terminator> /g"

2.(a) mRNA transcribed sequence

aug gcc aaa gaa gac aau auu gaa aug caa ggu acc guu cuu gaa acg uug ccu aau acc aug uuc cgc gua gag uua gaa aac ggu cac gug guu acu gca  
cac auc ucc ggu aaa aug cgc aaa aac uac auc cgc auc cug acg ggc gac aaa gug acu guu gaa cug acc ccg uac gac cug agc aaa ggc cgc auu guc 
uuc cgu agu cgc uga

(b) Determined by Piped sequence:

 cat infA-E.coli-K12.txt | sed "s/cat[at]at/ <minus10box>&<\/minus10box> /g" | sed -r "s/.{17} <minus10box/<\/minus35box> &/g" | 
 sed "s/tt[gt]ac[at]<\/minus35box> / <minus35box>&/g" | sed -r "s/\/minus10box> .{6}/&<\/tss> /g" | sed "s/.<\/tss> / <tss>&/g" | 
 sed "s/gagg/ <rbs>&<\/rbs>/g" | sed "s/<\/rbs>/&\n/g" | sed "2s/atg/\n&/1" | sed -r "3s/^.{3}*t[ag][ag]/&\n/g" | sed "3s/t/u/g" | 
 sed "3s/.../& /g"

3.(a)Amino acid translated from mRNA sequence:

M A K E D N I E M Q G T V L E T L P N T M F R V E L E N G H V V T A H I S G K M R K N Y I R I L T G D K V T V E L T P Y D L S K G R I V F  
R S R -

(b) Determined by Piped Sequence:

 cat infA-E.coli-K12.txt | sed "s/cat[at]at/ <minus10box>&<\/minus10box> /g" | sed -r "s/.{17} <minus10box/<\/minus35box> &/g" | 
 sed "s/tt[gt]ac[at]<\/minus35box> / <minus35box>&/g" | sed -r "s/\/minus10box> .{6}/&<\/tss> /g" | sed "s/.<\/tss> / <tss>&/g" | 
 sed "s/gagg/ <rbs>&<\/rbs>/g" | sed "s/<\/rbs>/&\n/g" | sed "2s/atg/\n&/1" | sed -r "3s/^.{3}*t[ag][ag]/&\n/g" | sed "3s/t/u/g" | 
 sed "3s/.../& /g" | sed -f genetic-code.sed