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Table 7 Effect of DNA sub-sites (3-bp) position on the zinc finger binding specificity

From: Exploiting the recognition code for elucidating the mechanism of zinc finger protein-DNA interactions

Experimental

Approach 3

DNA Target sequence 5’ – 3’

DNA sub-site position w.r.t to F1, F2, F3

Corresponding Helix

IHBE score for experimental DNA target and corresponding Helix

GGG

Jamieson et al. 1996 [32]

GGG

1

RER

0.0

Segal et al. 1999 [45]

GGG

2

RHR

39.3

Van et al. 2004 [46]

GGG

3

RHR

50.63

GCG

Hurt et al. 2003 [44]

GCG

1

RER

30.9

Van et al. 2004 [46]

GCAGCGGAG

2

RER

21.64

Kim et al. 2010 [43]

GCGGGGGCG

3

RER

28.6

GTG

Jamieson et al. 1996 (32)

GTG

1

RER

1.35

Hurt et al. 2003 [44]

GCGGTGGCG

2

RER

19.59

Van et al. 2004 [46]

GTGGACGAA

3

RAR

5.5

GAC

Rebar et al. 2002 [39]

GGGGGTGAC

1

DNR

2.04

Holmes et al. 2005 [40]

GTGGACGAA

2

DNR

4.033

Bae et al. 2003 [41]

GAC

3

CNR

7.23

  1. In Approach 3, GGG and GAC, show highest affinity with the respective protein sequence when present at a position against Finger 3, whereas GCG and GTG show high affinity for corresponding helix reported from literature for its position against Finger 1 and Finger 2 respectively