Read every base.
Fold every idea.

Structure you can trust, from physics you can check.

A sequence platform for modern RNA biology. Read a transcript, fold its structure, and design against it on one continuous surface.

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Minimum free energyPartition functionBase-pair probabilities LinearFold · long sequencesModified bases · m1Ψ · inosineMelting temperature Primer & ASO designFASTA · GenBank · dot-bracket · CT
01 Import

A transcript, rendered base-by-base.

Drop in a sequence (FASTA, GenBank, or just paste it in) and see every base at native resolution. No tiling, no downsampling. The transcript becomes something you can actually hold and trust.

02 Annotate

Features and modified bases, layered in context.

Mark features, regions, and modified positions on one shared coordinate space. Click any base and see its context at once: its feature, its place inside a hairpin.

03 Fold

Secondary structure, straight from the engine.

Thermodynamic folding: minimum free energy and partition function. Hairpins draw themselves, and base-pair probabilities and ΔG come from the same engine.

04 Design

From sequence to oligo, without leaving the page.

Select a region, design primers and antisense oligos, and check Tm and structure on the same engine that folds. The transcript becomes a document you can author against.

The desktop app

One surface. Many tracks.
On your machine.

nuvekta runs natively on macOS and Windows, with Linux to follow. Your sequences, structures, and annotations live on one surface, and it works offline. Built in React, TypeScript, and Tauri, with a custom canvas-and-SVG renderer.

  • Structure Viewer
  • Ensemble & Sampling
  • Modified-Base Foldingm1Ψ
  • Pseudoknots
  • Circular RNA
  • Melting & Temperature
  • Chemical Probing
  • Inverse Folding
  • ASO & Duplex Design
  • Primer & Oligo Design
  • Compare
A stylized illustration of the workspace, not a screenshot.
Platform

Everything a sequence wants to be.

Sequence Viewer Live

Base-accurate rendering. Drag to select, click to annotate, jump anywhere. Multiple tracks sharing one coordinate space.

Structure Viewer Live

Secondary structure in 2D, with planar, circular, and linear layouts. Fold it, melt it by temperature, inspect any base, with a fast approximate mode for transcripts too long to fold exactly. ΔG and base pairs come from the engine.

Ensemble & Sampling Live

Base-pair probabilities, centroid structures, and positional entropy — structure prediction with a confidence view rather than one line of dot-bracket. Suboptimal structures and Boltzmann samples for sequences without one dominant fold.

Pseudoknots Live

Detection of H-type pseudoknots and kissing-loop motifs, and a pseudoknot-aware folding mode for structures a nested model cannot represent.

Circular RNA Live

Genuine circular folding, ensemble analysis, accessibility, and sampling — not a linear sequence joined end to end.

Compare Live

Fold up to six variants side by side in linked panels — mutations, or one sequence across several temperatures. Structures are held in a consistent orientation, so a change in shape is attributable to a change in sequence rather than a redrawn layout.

Publication Figures Live

Export as SVG or PNG at publication resolution, sized to a single or double journal column, with panel letters, arrows, and a caption. Generated in a print theme, not a screenshot of a dark interface.

Modified-Base Folding Live

Fold RNA with modified nucleotides like m1Ψ, pseudouridine, m6A, and inosine — the chemistry behind modified mRNA therapeutics and ADAR editing. Modifications are checked against the base they sit on before they can change a number.

Chemical Probing Live

Import SHAPE, DMS, or 2A3 reactivity and fold with it as an experimental restraint. Every profile is checked against your sequence — including how much of it is actually covered — before it can influence a structure.

Melting & Temperature Live

Melting temperatures and melt curves from the partition function, so you can see how a structure opens as the temperature climbs.

Inverse Folding Live

Draw the structure you want and search for sequences that fold into it, scored on the same thermodynamic engine that verifies the result.

Primer & Oligo Design Live

Design primers over any region with Tm, GC, hairpin, and dimer QC, then check the oligo's own structure on the engine that folds the target.

ASO & Duplex Design Live

Walk antisense oligos across a transcript and rank candidates on accessibility-corrected binding thermodynamics, not complementarity alone. Gapmer construction with selectable wing chemistries, off-target screening against a transcriptome you supply, and export in IDT, Twist, or GenScript order format.

Plasmid, Enzymes & Cloning Live

Circular maps with features in place, restriction analysis with cut sites on the same coordinates, and simulated gels. Four assembly methods — restriction/ligation, Gibson, Golden Gate, and Gateway — with junction thermodynamics and quality flags.

Sequence Alignment Live

Align two sequences and compare them base by base, global (Needleman–Wunsch) or local (Smith–Waterman), with an identity score and a dot-plot view.

Construct Workbench Live

Assemble an mRNA construct from its parts — 5′ UTR, CDS, 3′ UTR, tail — reorder them, edit any segment, and fold the whole molecule rather than the piece you just changed.

File Formats Live

Open FASTA, GenBank, SnapGene, ApE, CT, BPSEQ, and dot-bracket, plus the application’s own project format. Export to those, plus CSV, HELM for modified oligos, and figure formats.

Early access

Want in early?

We're onboarding a small group of early users: RNA labs, oligo and mRNA teams, and anyone who lives in sequence files. Leave your email and we'll reach out as the platform opens up.

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Request early access