Difference between revisions of "Part:BBa K2516001"

Revision as of 19:35, 1 November 2017

pHSP70/pRBCS2 combined promoter for C. reinhardtii

Improved part from 2016

This part is an improved version of USP_UNIFESP-Brazil 2016 iGEM team. Link: https://parts.igem.org/Part:BBa_K2136013

The combined constitutive endogenous promoter used for foreign gene expression in C. reinhardtii.

This promoter consists of 5 main parts:

1) HSP70A promoter (1-263) is the first upstream region of Heat Shock Protein 70A from C. reinhardtii. This sequence spacing-dependent and acts as an inhibitor of transcriptional silencing in C. reinhardtii. [1]

2) [Improvement] High-efficiency separator sequence between two promoters (264-272) that provides the best spacing between two promoters, resulting in an increase of transformation rate by 2.6 times relative to original separating sequence. [1]

3) RBCS2 promoter (273-454) is a promoter region of nuclear ribulose bisphosphate carboxylase/oxygenase small subunit gene from C. reinhardtii. It is the most widely utilized promoter for robust transgene expression in C. reinhardtii. [1]

4) Reference List:

1. Schroda, M., Beck, C. F., & Vallon, O. (2002). Sequence elements within an HSP70 promoter counteract transcriptional transgene silencing in Chlamydomonas. The Plant Journal, 31(4), 445-455. 2. Lumbreras, V., Stevens, D. R., & Purton, S. (1998). Efficient foreign gene expression in Chlamydomonas reinhardtii mediated by an endogenous intron. The Plant Journal, 14(4), 441-447.

Sequence and Features

Assembly Compatibility:

10
COMPATIBLE WITH RFC[10]
12
INCOMPATIBLE WITH RFC[12]
Illegal NheI site found at 264
21
COMPATIBLE WITH RFC[21]
23
COMPATIBLE WITH RFC[23]
25
COMPATIBLE WITH RFC[25]
1000
COMPATIBLE WITH RFC[1000]

@@ Line 3: / Line 3: @@
 <partinfo>BBa_K2516001 short</partinfo>
-The combined constitutive endogenous promoter used for foreign gene expression in C. reinhardtii.
+<b>Improved part from 2016</b>
+This part is an improved version of USP_UNIFESP-Brazil 2016 iGEM team. Link: https://parts.igem.org/Part:BBa_K2136013
+The combined constitutive endogenous promoter used for foreign gene expression in <i>C. reinhardtii</i>.
+This promoter consists of 5 main parts:
+) HSP70A promoter (1-263) is the first upstream region of Heat Shock Protein 70A from <i>C. reinhardtii</i>. This sequence spacing-dependent and acts as an inhibitor of transcriptional silencing in <i>C. reinhardtii</i>. [1]
+) [Improvement] High-efficiency separator sequence between two promoters (264-272) that provides the best spacing between two promoters, resulting in an increase of transformation rate by 2.6 times relative to original separating sequence. [1]
+) RBCS2 promoter (273-454) is a promoter region of nuclear ribulose bisphosphate carboxylase/oxygenase small subunit gene from <i>C. reinhardtii</i>. It is the most widely utilized promoter for robust transgene expression in <i>C. reinhardtii</i>. [1]
+)
+Reference List:
+. Schroda, M., Beck, C. F., & Vallon, O. (2002). Sequence elements within an HSP70 promoter counteract transcriptional transgene silencing in Chlamydomonas. The Plant Journal, 31(4), 445-455.
+. Lumbreras, V., Stevens, D. R., & Purton, S. (1998). Efficient foreign gene expression in <i>Chlamydomonas reinhardtii</i> mediated by an endogenous intron. The Plant Journal, 14(4), 441-447.
 <!-- Add more about the biology of this part here