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Table 1 Summary of results for mTARC putative STAT6 sites

From: Interleukin-4 induction of the CC chemokine TARC (CCL17) in murine macrophages is mediated by multiple STAT6 sites in the TARC gene promoter

Putative site

Position within mTARC promoter

Sequence

Significance inferred from 5 'deletion series

Binds STAT6 in EMSA

Trimer construct induced by IL-4 in transfections

Reduction in IL-4 induction of mTARC -1173 when site mutated (approx.)

T1

-140 to -148

TTC TTTGAA*

+

+

-

85%

T2

-194 to -203

TTC TCTGGAA

+

+

++

100%

T3

-473 to -482

ATC CCTGTAA

-

-

ND

ND

T4

-484 to -493

TTC TACTGAA

-

+

+

40%

T5

-513 to -522

TTC CCCAAAA

+

-

ND

60%

T6

-531 to-540

TTC AGCTGAA

+

-

-

60%

T7

-657 to -666

TT TCTGGGA G

-

-

ND

ND

T8

-763 to -111

TTC TAGGGCA

-

-

ND

ND

T9

-854 to -863

TTC TGGGCA C

-

-

ND

ND

T10

-870 to -879

TT GTCCTGAA

-

-

ND

ND

T11

-904 to -913

TTC TCAGTAA

-

+

++

15%

  1. *residues in bold conform to the core consensus STAT6 binding site.
  2. + indicates positive result.
  3. - indicates negative result.
  4. ++ indicates highly activated by IL-4.
  5. ND indicates experiment not done.