Regulatory
pBad/araC

Part:BBa_I0500:Experience

Designed by: Sri Kosuri   Group: Antiquity   (2003-12-05)
Revision as of 21:27, 21 October 2009 by Verhoeven1981 (Talk | contribs) (→‎User Reviews)

This experience page is provided so that any user may enter their experience using this part.
Please enter how you used this part and how it worked out.

Applications of BBa_I0500

  • When grown with 0.2% arabinose, promoter is weak-medium. [jb, 5/24/04] Part may not be compatible with MC4100 as cell line is araD 139.
  • MC4100 is not a good chassis for operating BBa_I0500 (pBad promoter). The feed-forward regulation of the endogenous promoter controlling expression of the arabinose transporter prevents linear induction with increasing arabinose concentration. (Engineered strain from Keasling's lab, used by jrk for operation of the screening plasmid.) [cconboy 04]
  • Observations of induced expression of GFP (BBa_E0840) are consistent with previous comments about weak promoter signal induction by jb 5/24/04. [melissali, Berkeley iGEM 2005]

PC and AraC are located on the complementary strand, reading right to left as written.

  • At least one registry stock contains a deletion of the C at base 1194. This is after the transcriptional start but before the translation start, so it may not be significant. Parts with this mutation have been qualitatively observed to function normally.

User Reviews

UNIQ9dea328dadca2b78-partinfo-00000000-QINU

•••••

Antiquity

This review comes from the old result system and indicates that this part worked in some test.

iGEM Groningen 2009

The sequence was listed as inconsistent, and the ligations of parts behind the promoter failed. Restriction of isolated plasmids showed fragments of unexpected sizes.

UNIQ9dea328dadca2b78-partinfo-00000003-QINU