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. Author manuscript; available in PMC: 2014 Aug 11.
Published in final edited form as: Curr Protoc Protein Sci. 2011 Nov;0 17:Unit17.4. doi: 10.1002/0471140864.ps1704s66

Table 17.4.4.

Components of Natrix (Hampton Research) for Nucleic Acid and Protein-Nucleic Acid Complexes Screena

Condition Formulationb
1 0.01 M magnesium chloride, 0.05 M MES, pH 5.6, 1.8 M lithium sulfate
2 0.01 M magnesium acetate, 0.05 M MES, pH 5.6, 2.5 M ammonium sulfate
3 0.1 M magnesium acetate, 0.05 M MES, pH 5.6, 20% MPD
4 0.2 M KCl, 0.01 M magnesium sulfate, 0.05 M MES, pH 5.6, 10% PEG 400
5 0.2 M KCl, 0.01 M magnesium chloride, 0.05 M MES, pH 5.6, 5% PEG 8000
6 0.1 M ammonium sulfate, 0.01 M magnesium chloride, 0.05 M MES, pH 5.6, 20%
PEG 8000
7 0.02 M magnesium chloride, 0.05 M MES, pH 6.0, 15% isopropanol
8 0.005 M magnesium sulfate, 0.1 M ammonium acetate, 0.05 M MES, pH 6.0, 0.6
M NaCl
9 0.1 M KCl, 0.01 M magnesium chloride, 0.05 M MES, pH 6.0, 10% PEG 400
10 0.005 M magnesium sulfate, 0.05 M MES, pH 6.0, 5% PEG 4000
11 M magnesium chloride, 0.05 M sodium cacodylate, pH 6.0, 1.0 M lithium
sulfate
12 M magnesium sulfate, 0.05 M sodium cacodylate, pH 6.0, 1.8 M lithium
sulfate
13 0.015 M magnesium acetate, 0.05 M sodium cacodylate, pH 6.0, 1.7 M ammonium
sulfate
14 M KCl, 0.025 M magnesium chloride, 0.05 M sodium cacodylate, pH 6.0, 15%
isopropanol
15 0.04 M magnesium chloride, 0.05 M sodium cacodylate, pH 6.0, 5% MPD
16 0.04 M magnesium acetate, 0.05 M sodium cacodylate, pH 6.0, 30% MPD
17 M KCl, 0.01 M calcium chloride, 0.05 M sodium cacodylate, pH 6.0, 10% PEG
4000
18 M magnesium acetate, 0.05 M sodium cacodylate, pH 6.5, 1.3 M lithium
sulfate
19 M magnesium sulfate, 0.05 M sodium cacodylate, pH 6.5, 2.0 M ammonium
sulfate
20 M ammonium acetate, 0.015 M magnesium acetate, 0.05 M sodium
cacodylate, pH 6.5, 10% isopropanol
21 0.2 M KCl, 0.005 M magnesium chloride, 0.05 M sodium cacodylate, pH 6.5, 10%
1,6-hexanediol
22 0.08 M magnesium acetate, 0.05 M sodium cacodylate, pH 6.5
23 M KCl, 0.01 M magnesium chloride, 0.05 M sodium cacodylate, pH 6.5, 10%
PEG 4000
24 0.2 M ammonium acetate, 0.01 M calcium chloride, 0.05 M sodium cacodylate, pH
6.5, 10% PEG 4000
25 0.08 M magnesium acetate, 0.05 M sodium cacodylate, pH 6.5, 30% PEG 4000
26 M KCl, 0.1 M magnesium acetate, 0.05 M sodium cacodylate, pH 6.5, 10% PEG
8000
27 M ammonium acetate, 0.01 M magnesium acetate, 0.05 M sodium cacodylate,
pH 6.5, 30% PEG 8000
28 0.05 M magnesium sulfate, 0.05 M sodium HEPES, pH 7.0, 1.6 M lithium sulfate
29 0.01 M magnesium chloride, 0.05 M sodium HEPES, pH 7.0, 4.0 M lithium chloride
30 0.01 M magnesium chloride, 0.05 M sodium HEPES, pH 7.0
31 0.005 M magnesium chloride, 0.05 M sodium HEPES, pH 7.0, 25% PEG
monomethyl ether 550
32 0.2 M KCl, 0.01 M magnesium chloride, 0.05 M sodium HEPES, pH 7.0, 20% 1,6-
hexanediol
33 0.2 M ammonium chloride, 0.01 M magnesium chloride, 0.05 M sodium HEPES,
pH 7.0, 30% 1,6-hexanediol
34 0.1 M KCl, 0.005 M magnesium sulfate, 0.05 M sodium HEPES, pH 7.0, 15% MPD
35 M KCl, 0.01 M magnesium chloride, 0.05 M sodium HEPES, pH 7.0, 5% PEG
400
36 0.1 M KCl, 0.01 M calcium chloride, 0.05 M sodium HEPES, pH 7.0, 10% PEG 400
37 M KCl, 0.025 M magnesium sulfate, 0.05 M sodium HEPES, pH 7.0, 20% PEG
200
38 0.2 M ammonium acetate, 0.15 M magnesium acetate, 0.05 M sodium HEPES, pH
7.0, 5% PEG 4000
39 M ammonium acetate, 0.02 M magnesium chloride, 0.05 M sodium HEPES,
pH 7.0, 5% PEG 8000
40 0.01 M magnesium chloride, 0.05 M Tris·Cl, pH 7.5, 1.6 M ammonium sulfate
41 M KCl, 0.015 M magnesium chloride, 0.05 M Tris·Cl, pH 7.5, 10% PEG
monomethyl ether 550
42 0.01 M magnesium chloride, 0.05 M Tris·Cl, pH 7.5, 5% isopropanol
43 M magnesium chloride, 0.05 M ammonium acetate, 0.05 M Tris·Cl, pH 7.5,
10% MPD
44 0.2 M KCl, 0.05 M magnesium chloride, 0.05 M Tris·Cl, pH 7.5, 10% PEG 4000
45 0.025 M magnesium sulfate, 0.05 M Tris·Cl, pH 8.5, 1.8 M ammonium sulfate
46 0.005 M magnesium sulfate, 0.05 M Tris·Cl, pH 8.5, 35% 1,6-hexanediol
47 0.1 M KCl, 0.01 M magnesium chloride, 0.05 M Tris·Cl, pH 8.5, 30% PEG 400
48 M calcium chloride, 0.2 M ammonium chloride, 0.05 M Tris·Cl, pH 8.5, 30%
PEG 4000
b

MES, 2-(N-morpholino)ethanesulfonic acid; MPD, 2-methyl-2,4-pentanediol; PEG, polyethylene glycol.