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DNA to RNA Transcription Converter

Converts DNA sequences into transcribed messenger RNA (mRNA) by replacing Thymine with Uracil, and vice-versa.

⭐ Classic Molecular Biology Presets:

5' ⟶ 3' Nucleotide Sequence Input (DNA or RNA)

Paste raw sequence or FASTA header format. Automatically removes numbers and whitespace.

27 bp
Bases:A: 7T/U: 4G: 8C: 8GC: 59.3% | AT: 40.7%
GC Content59.3%G+C = 16 nt
Melting Temp (Tm)64.3°CSalt-Adjusted (50mM Na⁺)
ssDNA Mol Weight8,294g/mol (Daltons)
dsDNA Weight17,820Average 660 Da/bp
Antiparallel Watson-Crick Double Helix Base-Pairing DiagramShowing first 14 base pairs
5'3'3'5'AT=TA=GC≡GC≡CG≡CG≡AT=TA=GC≡GC≡CG≡GC≡CG≡CG≡
Adenine (A) Thymine (T) Guanine (G) Cytosine (C)A=T (2 H-Bonds) | G≡C (3 H-Bonds)
Transcribed mRNA Molecule (5' ⟶ 3'):
5' - AUGGCCAUGGCGCCCAGAACACUGUAG - 3'
Coding DNA Strand (5' ⟶ 3')
ATGGCCATGGCGCCCAGAACACTGTAG
*Identical to mRNA, except T replaces U
Template DNA Strand (3' ⟶ 5')
TACCGGTACCGCGGGTCTTGTGACATC
*RNA Polymerase reads this 3' to 5'

What is RNA Transcription?

Transcription is the molecular process where RNA polymerase synthesizes a complementary single-stranded mRNA molecule from a DNA template strand.

Formula & Step-by-Step Calculation

Thymine (T) in DNA ⟶ Uracil (U) in RNA

Uracil lacks the methyl group present on thymine.

Worked Step-by-Step Examples

Example 1

Transcribe DNA: 5'-ATGGCT-3'

Solution: mRNA: 5'-AUGGCU-3'
• Replace all T with U

Common Real-World & Academic Use Cases

  • ✓ mRNA vaccine design & in vitro transcription
  • ✓ RT-PCR cDNA conversion
  • ✓ Northern blot transcript analysis

How to Use the DNA to RNA Transcription Converter

1

Paste DNA Sequence

Enter nucleotide string.

2

View Transcribed RNA

Inspect resulting mRNA sequence.

Frequently Asked Questions

Q: Why does RNA use Uracil instead of Thymine?

Uracil is energetically less costly for cells to synthesize, though thymine provides higher fidelity in stable genomic DNA.

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