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Revision as of 19:42, 13 July 2011

Grinnell Menubar

Gel Pics

2011.06.05-2011.06.11


Figure 1: esp and rsaA PCR products. Lane 1: ladder; Lane 2: rsaA from liquid culture Caulobacter; Lane 3: rsaA from plate culture Caulobacter; Lane 4: esp from S. epidermidis.	Figure 2: Gel results for transformation of ligations. Lane 1: ladder; Lane 2: digested plasmid with rsaA C-terminal; Lane 3: digested plasmid with rsaA C-terminal and esp; Lanes 4-8: digested plasmids from various colonies with esp.

2011.06.12-2011.06.18


Gel 1 of 2. Lane 1: ladder; lanes 2-4: PCR product using VF2 and VR of plasmid containing esp ligated with rsaA C-terminal that had been digested 20110606; lane 5: PCR product of plasmid containing esp; lanes 6-8: PCR product using VF2 and VR of plasmid containing esp ligated with rsaA C-terminal PCR product from 20110605. Only lane 6 shows successful ligation of esp and rsaA C-terminal.	Gel 2 of 2. Lane 1: ladder; lanes 2-4: PCR product using VF2 and VR of plasmid containing esp ligated with rsaA C-terminal that had been digested 20110606; lane 5: PCR product of plasmid containing esp; lanes 6-8: PCR product using VF2 and VR of plasmid containing esp ligated with rsaA C-terminal PCR product from 20110605. None of these show successful ligation.	Gel of PCR of Caulobacter promoters Pxyl (inducible) and PrsaA (constitutive). Lane 1: ladder; lane 2: PrsaA; Lane 3: Pxyl. Bands appear, but are hazy and spread out due to the small size of DNA fragments.	PCR products of Caulobacter promoters PrsaA and Pxyl. Lane 1: ladder; lane 2: PrsaA; lane 3: Pxyl.

Gel confirming that clean up did not remove DNA fragments. Lane 1: ladder; lane 2: PrsaA; lane 3: Pxyl.	Gel of PCR products of transformations of insertion of Biobrick promoter BBa_K081005 into pSB1C3 containing esp and rsaA C-terminal. Lane 1: ladder; lanes 2-4 and 6-8: PCR product of transformation survivors; lane 5: control DNA of esp + rsaA C-terminal. Only lane 2 shows something that may be success, but as the fragment for the promoter is so small, it is difficult to confirm based solely on gel electrophoresis.	Gel of PCR product of esp and rsaA C-terminal using new primers. Lane 1: ladder; lanes 2,3: PCR product of rsaA from chromosomal Caulobacter DNA; lane 4: PCR product of esp using new primers from chromosomal S. epidermidis DNA.

2011.06.19-2011.06.25


Gel of Plasmid PCR of promoters. Presence of two small bands shows contamination of samples. Lane 1: ladder; lanes 2-5: plasmid PCR of transformation survivors.	Gel of BBa_K081005 digests from minipreps. Lane 1: ladder; lane 2: digest of miniprep from overnights that should carry the desired promoter insert. Digest shows one band: the linearized plasmid.	Lanes 1-6: plasmid PCR of transformed cells that should carry the desired esp insert; lane 7: ladder; lanes 8-10: plasmid PCR of transformed cells that should be carrying esp + rsaA C-terminal insert. A few of the esp inserts succeeded, but as expected the three piece ligation failed again.	Lanes 1-3 and 5-8: plasmid PCR of transformed cells that should carry the Promoter-esp-stop-rsaA insert in plasmid pMR10; lane 4: ladder. Only lane 3 shows any success.

Lanes 1-3 and 5-7: plasmid PCR of colonies that should be carrying ''rsaA'' C-terminal insert in pSB1C3; lane 4: ladder. Lanes 3 and 4 seem to show insert at significant concentrations.	Lane 1: ladder; lanes 2-4: plasmid PCR product of various promoter insertions into pSB1C3. Smearing due to leftover circular plasmid. Insertions seem to have been successful.	Gel 1 of 2. Colony PCR of transformation products of insertions of esp from PCR into pSB1C3 containing rsaA C-terminal, insertions of rsaA C-terminal into pSB1C3 containing esp, and esp and rsaA C-terminal digests from pSB1C3 into pMR10 as a three piece ligation. Lane 1: ladder; lanes 2-4: esp from PCR inserted into rsaA containing pSB1C3; lanes 5-7: rsaA from PCR inserted into esp containing pSB1C3; lanes 8-10: esp and rsaA digests from plasmid insertion into pMR10. Lanes 2-4 show correct insertion length, but none of the other fragments are the correct length.	Gel 2 of 2. Colony PCR of transformation products of insertions of esp from PCR into pSB1C3 containing rsaA C-terminal, insertions of rsaA C-terminal into pSB1C3 containing esp, and esp and rsaA C-terminal digests from pSB1C3 into pMR10 as a three piece ligation. Lane 1: ladder; lanes 2-4: esp from PCR inserted into rsaA containing pSB1C3; lanes 5-7: rsaA from PCR inserted into esp containing pSB1C3; lanes 8-10: esp and rsaA digests from plasmid insertion into pMR10. Lanes 2-4 show correct insertion length, but none of the other fragments are the correct length.

Colony PCR products of transformation products of insertions of esp + rsaA C-terminal into plasmid containing Caulobacter constitutive promoter PrsaA. Lane 1: ladder; lanes 2-7: PCR products; lane 8: standard PCR product of pSB1C3 containing only PrsaA. Transformation was successful, but ligation, and perhaps digestion, were not.	Colony PCR products of transformation products of insertion of esp + rsaA into pSB1C3 containing Caulobacter inducible promoter Pxyl (induced in presence of xylene). Lane 1: ladder; lanes 2-7: PCR products; lane 8: standard PCR product of pSB1C3 containing only Pxyl. Transformation was successful, but ligation was not.	Colony PCR amplified DNA fragments of transformation products of inserts into plasmid containing existing Biobrick promoter BBa_K081005. Lane 1: ladder; lanes 2-7: PCR products; lane 8: standard DNA fragment identified as containing BBa_K081005. The lack of DNA may be due to a breakdown in our antibiotic; the transformation is being repeated.

2011.06.26-2011.07.02


Gel 1 of 2. PCR products of transformation cells that should contain esp + rsaA C-terminal insert into plasmids containing various promoters. Lane 1: ladder; lanes 2-5: inserts into plasmid containing BBa_K081005; lane 6: standard BBa_K081005 containing no insert; lanes 7-10: inserts into plasmid containing P_xyl. While the BBa_K081005 plasmids seem to have some insert, none of these show an insert of appropriate size (~1.3-1.5kb).	Gel 2 of 2. PCR products of transformation cells that should contain esp + rsaA C-terminal insert into plasmids containing various promoters. Lane 1: ladder; lanes 2-7: inserts into plasmid containing P_rsaA; lane 8: standard P_rsaA with no insert; lane 9: standard P_xyl with no insert. The first lane shows odd results, but none of these seems to have the desired insert.	Test to ensure all of our restriction enzymes are still active. Lane 1: ladder; lane 2: cut with Eco RI; lane 3: cut with XbaI; lane 4: standard uncut DNA fragment for lanes 2 and 3; lane 5: cut with SpeI; lane 6: cut with PstI; lane 7: standard uncut DNA fragment for lanes 5 and 6. There is an apparent decrease in size from standard DNA fragments to the digested samples. In the digest lanes there is also a dim band fairly far down the gel corresponding to the small end piece that is the other product of digestion.	Lane 1: ladder; lane 2: colony PCR product for promoter BBa_K081005 in preparation for digestion and insertion into plasmid containing esp and rsaA C-terminal. Result is positive.

Gel 1 of 3. PCR of transformation cells that should contain an insert of P_xyl into pSB1C3 containing esp and rsaA C-terminal. Lane 1: ladder; lanes 2-5: PCR with plasmid primers VF2 and VR; lanes 6-9: PCR with promoter specific forward primer and plasmid reverse primer VR. The lack of DNA is disturbing and suggests that our plates are ineffective or contaminated.	Gel 2 of 3. PCR of transformation cells that should contain an insert of P_rsaA into pSB1C3 containing esp and rsaA C-terminal. Lane 1: ladder; lanes 2-5: PCR with plasmid primers VF2 and VR; lanes 6-9: PCR with promoter specific forward primer and plasmid reverse primer VR. Bands in lanes 2, 3, and 4 suggests that these colonies at least contained the plasmid, but the apparent size of the band is too small for esp and rsaA C-terminal together; rather it is the correct size for just rsaA C-terminal.	Gel 3 of 3. PCR product of transformation colonies that should contain an insert of either P_xyl or P_rsaA into pSB1C3 containing esp and rsaA C-terminal. Lane 1: ladder; lanes 2,3: P_xyl insert PCR using plasmid primers VF2 and VR; lanes 4,5: P_rsaA insert PCR using plasmid primers VF2 and VR; lanes 6,7: P_xyl insert PCR using promoter specific forward primer and VR; lanes 8,9: P_rsaA insert PCR using promoter specific forward primer and VR. Lanes 8 and 9 suggest a successful insertion of P_rsaA, however all of the bands are too small.	Verification of presence of lack of rsaA C-terminal insert in pSB1C3 containing esp. Lane 1: ladder; lane 2: digested PCR of possible insert; lane 3: standard digested esp. The band is faint, but there appears to be a band at the same height as the standard as well as a couple higher bands for leftover plasmids, suggesting that there was no insertion of rsaA C-terminal.

Gel 1 of 2. PCR of transformation products of rsaA C-terminal insert into pSB1C3 containing esp. Lane 1: ladder; lanes 2-7: ligation 1, colonies 1-6; lanes 8-10: ligation 2, colonies 1-3. The complete lack of DNA fragments here means that these ligations failed.	Gel 2 of 2. PCR of transformation products of rsaA C-terminal insert into pSB1C3 containing esp. Lane 1: ladder; lanes 2-4: ligation 2, colonies 4-6; lanes 5-10: ligation 3, colonies 1-6. All the bands here are correct for esp, but not the combination.

2011.07.03-2011.07.09


PCR test of transformation products of insertion of gel extracted DNA into plasmid containing another gene. Lane 1: ladder; lanes 2-4: insertion of rsaA C-terminal into plasmid containing esp; lanes 5-7: insertion of esp into plasmid containing rsaA C-terminal. Smearing of bands is inconclusive and suggests that there may be no DNA (colonies are contaminants) or that freeze-thaw did not succeed in providing sufficient template DNA for PCR.	Digested miniprep samples of overnight cultures of transformation product that may contain esp and rsaA. Lane 1: esp standard; lanes 2,3: rsaA from gel extraction inserted into pSB1C3 containing esp from plates spread with 20μL of transformation cells; lanes 4,5: rsaA from gel extraction inserted into pSB1C3 containing esp from plates spread with 200μL of transformation cells; lanes 6,7: esp from gel extraction inserted into pSB1C3 containing rsaA from plates spread with 20μL of transformation cells; lanes 8,9: esp from gel extraction inserted into pSB1C3 containing rsaA from plates spread with 200μL of transformation cells; lane 10: ladder.	Lane 1: ladder; lane 2: digest of miniprep of transformation product of insert of esp from gel extraction into plasmid containing rsaA; lanes 3,4: ligations gel extracted esp and rsaA and plasmid containing the other gene; lane 5: ligation of gel extracted esp with rsaA. Lane 2 shows that ligation was unsuccessful. The rest of the lanes are inconclusive and a follow up gel with additional DNA is to be run.	Lane 1: ladder; lane 2: ligation of esp and rsaA C-terminal fragments from gel extraction. No rsaA appears to be present, nor any ligation, only esp.

Gel of digested pSB1C3 containing esp for gel extraction. Lane 1: ladder; lanes 2,3: digest with EcoRI and SpeI; lanes 5,6: digest with SpeI and PstI.	Gel of digests of pSB1C3 containing rsaA C-terminal in preparation for gel extraction. Lane 1: ladder; lanes 3,4: digest with XbaI and PstI; lanes 6,7: digest with EcoRI and XbaI.	Gel of restriction digests (EcoRI and PstI) of miniprepped DNA from more transformants from the weekend's transformations. Lane 1: ladder; lanes 2-5: colonies that should contain rsaA inserted into pSB1C3 containing esp; lanes 6-9: colonies that should contain esp inserted into pSB1C3 containing rsaA; lane 10: esp standard.	Follow up gel of lanes 5 and 6 from the previous gel, redigested for a longer period of time. Lane 1: ladder; lane 2: digest of miniprep product from colony that should contain an insert of rsaA into plasmid already containing esp (previous lane 5); lane 3: digest of miniprep product from colony that should contain an insert of esp into plasmid already containing rsaA (previous lane 6).

Gel for gel extraction of esp and rsaA combination and checking the identity of PCR product. Lane 1: ladder; lanes 3,4: digest of miniprep DNA for gel extraction; lane 6: PCR product. Gel is somewhat messy, but appropriately sized bands are apparent.	Gel proving the successful transformation of dspB containing plasmid into E. coli Top10. Lane 1: ladder; lanes 2-4: digests (EcoRI and PstI) of miniprep DNA from overnights of transformants. There is a clear band at the appropriate size for dspB in all of the experimental lanes.	Gel of transformation products of esp + rsaA insert into plasmid containing promoter BBa_K081005. Lane 1: ladder; lanes 2-5: transformants using gel extracted combo gene; lanes 6-9: transformants using PCR product for combo insert.	Gel showing dspB with various promoter inserts as contrasted to a standard dspB with no promoter. Lane 1: dspB (WT) + P_rsaA; lane 2: with P_xyl; lanes 3,4: with BBa_K081005; lane 5: standard dspB; lane 6: ladder. Not all transformants show successful insertion of the desired promoter, but it is clear which were successful when compared to the standard dspB.

Gel of transformants that should contain both dspB and a promoter insert. Lane 1: ladder; lanes 2-4: dspB with P_rsaA; lanes 5-7: dspB with P_xyl; lane 8: standard dspB with no promoter.	Gel of transformants that should carry esp + rsaA behind a promoter. Lane 1: ladder; lanes 2-5: P_rsaA with insert; lanes 6-9: P_xyl with insert. None of these transformants show the desired insert.	Gel of more transformants that should have esp + rsaA combo inserted behind P_xyl. Lane 1: ladder; lanes 2-4: combo from miniprep digest and gel extract insert; lanes 5-7: combo from PCR insert; lane 8: confirmation of insertion behind BBa_K081005; lane 9: standard combo from gel extraction.	Gel of transformants that should carry esp + rsaA combo insert behind P_rsaA run against standard combo. Lane 1: ladder; lanes 2-4: combo from miniprep digest and gel extract insert; lanes 5-7: combo from PCR product insert; lane 8: standard combo without any promoter.

Gel of more transformants of dspB with P_xyl. Lane 1: ladder; lanes 2-5: transformants; lane 6: standard dspB with no promoter.

2011.07.10-2011.07.16

Gel of transformants with synthesized dspB and esp with codons optimized for expression in Caulobacter after ligation into pSB1C3. Lane 1: ladder; lanes 2-5: optimized dspB; lanes 6-9: optimized esp. Lane 4 shows successful insertion of dspB into pSB1C3, but none of the optimized esp transformants show the desired insert.

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-					Gel results for transformation of ligations. Lane 1: ladder; Lane 2: digested plasmid with <i>rsaA</i> C-terminal; Lane 3: digested plasmid with <i>rsaA</i> C-terminal and <i>esp</i>; Lanes 4-8: digested plasmids from various colonies with <i>esp</i>.
+					Figure 2: Gel results for transformation of ligations. Lane 1: ladder; Lane 2: digested plasmid with <i>rsaA</i> C-terminal; Lane 3: digested plasmid with <i>rsaA</i> C-terminal and <i>esp</i>; Lanes 4-8: digested plasmids from various colonies with <i>esp</i>.
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Team:Grinnell/Notebook/Gels