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Amino-Modifier C2 dT - (10-1037)

5'-Dimethoxytrityl-5-[N-(trifluoroacetylaminoethyl)-3-acrylimido]-2'-deoxyUridine,3'-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite

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10-1037

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Product Specifications

Formula:

C₄₆H₅₄N₆O₁₀F₃P

M.W.:

938.94

F.W.:

402.3

CAS Number:

198080-39-6

5'-Dimethoxytrityl-5-[N-(trifluoroacetylaminoethyl)-3-acrylimido]-2'-deoxyUridine,3'-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite

Description

Sequence Modifiers are designed for use in automated synthesis. The carboxy-dT is hydrolyzed during deprotection and can be coupled directly to a molecule containing a primary amino group by a standard peptide coupling or via the intermediate N-hydroxysuccinimide (NHS) ester. Amino-Modifier dA, Amino-Modifier dC, N2-Amino-Modifier dG and both Amino-Modifier dT products can be added in place of a dA, dC, dG and dT residue, respectively, during oligonucleotide synthesis. Corresponding Amino-Modifier supports can replace their respective deoxynucleoside supports. After deprotection, the primary amine on the C6 analogues is separated from the oligonucleotide by a spacer arm with a total of 7 -10 atoms and can be labelled or attached to an enzyme. The C2 analogue is more suitable for the attachment of molecules designed to react with the oligonucleotide.

Details

Usage

Coupling: Amino-Modifier C2 dT reacts in a manner identical to normal phosphoramidites. To prevent side reactions, synthesize using acetyl-protected dC. See Deprotection for further details.
Deprotection: No changes needed from standard method recommended by synthesizer manufacturer. The TFA protecting group is removed during standard ammonium hydroxide deprotection. A minor side reaction during ammonia deprotection can lead to irreversibly capping 2-5% of the amine. This could be significant if multiple additions of the modifier are made. To prevent the reaction, synthesize using acetyl-protected dC and deprotect in 30% ammonia/40% methylamine 1:1 (AMA) at 65°C for 15 minutes.

Specifications
Diluent	Anhydrous Acetonitrile
Recommended Storage	Refrigerated storage, maximum of 2-8°C, dry
Stability In Solution	24 hours

Dilution/Coupling Data

The table below show pack size data and, for solutions, dilution and approximate coupling based on normal priming procedures.

ABI 392/394

Catalog #	Pack Size	Grams/Pack	0.1M Dil. (mL)	Approximate Number of Additions
				LV40	LV200	40nm	0.2μm	1μm	10μm
10-1037-02	0.25 g	.25grams	2.66	75.33	45.2	28.25	20.55	15.07	3.77
10-1037-05	0.5 g	.5grams	5.33	164.33	98.6	61.63	44.82	32.87	8.22
10-1037-90	100 µmol	.094grams	1	20	12	7.5	5.45	4	1

Expedite

Catalog #	Pack Size	Grams/Pack	Dilution (mL)	Approximate Number of Additions
				Molarity	50nm	0.2μm	1μm	15μm
10-1037-02	0.25 g	.25grams	3.97	0.07	73	45.63	33.18	4.56
10-1037-05	0.5 g	.5grams	7.95	0.07	152.6	95.38	69.36	9.54
10-1037-90	100 µmol	.094grams	1.5	0.07	23.6	14.75	10.73	1.48