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← Primer database

Primer database

Homer3

homer scaffold protein 3

Rattus norvegicus

PublicationBaerentzen et al. 2024

Sequences

Forward (5′→3′)

GGTCAAAGAAGCTGCCAGAC

Reverse (5′→3′)

TGCGGAACAGCTTCTCTTCT

Amplicon

143 bp

Primer Tm (°C)

ConditionsForwardReverseAverageΔ F/R
qPCR master mix62.762.962.80.2
Primer-BLAST default59.159.359.20.2

qPCR master mix: Owczarzy 2004/2008 · 250 nM primer · 50 mM Na⁺ · 3 mM Mg²⁺ · 0.8 mM dNTP

Primer-BLAST default: SantaLucia 1998 salt corr. · 50 nM primer · 50 mM Na⁺ · 1.5 mM Mg²⁺ · 0.6 mM dNTP

Bold, underlined base = 3′ end (polymerase extension point).

Primer QC

GC% · Forward

55.0%

GC% · Reverse

50.0%

Self-dimer ΔG · Fwd (any position)

-2.7 kcal/mol

Self-dimer ΔG · Fwd (3′ end)

-0.8 kcal/mol

Self-dimer ΔG · Rev (any position)

-2.7 kcal/mol

Self-dimer ΔG · Rev (3′ end)

0.7 kcal/mol

Heterodimer ΔG (F×R, any position)

-7.9 kcal/mol

Heterodimer ΔG (F×R, 3′ end)

-2.9 kcal/mol

ΔG at 37 °C · SantaLucia 1998 NN parameters · < −6 kcal/mol = significant dimer risk · "3′ end" is restricted to duplexes anchored at a primer's own 3′ terminal base (polymerase-extendable); "any position" is the most stable duplex anywhere in the primer. Estimated screening value. For comprehensive dimer analysis, validate with Primer3.

Source

PMID

40656123(Europe PMC)

Citation

Baerentzen et al. 2024

Genomic mapping

Ensembl gene

ENSRNOG00000020229 ↗

NCBI Gene ID

29548

Assembly

GRCr8

Cross-check

ENSRNOT00000126363
✓ENSRNOT00000098457
✓ENSRNOT00000108210★
✓ENSRNOT00000027428
97bp~82bpThis is the outer span across every isoform's exon here. They don't all agree on the exact boundary (alternative splice site), so hover a row's own box below for its real length.157bp~2.2kbThis is the outer span across every isoform's exon here. They don't all agree on the exact boundary (alternative splice site), so hover a row's own box below for its real length.108bp119bp157bp111bp~3.2kbThis is the outer span across every isoform's exon here. They don't all agree on the exact boundary (alternative splice site), so hover a row's own box below for its real length.
exon presentprimer binds hereconfirmed amplicongap = exon skipped~bp = boundary varies
How do I read this diagram?

Each row is one transcript, aligned on a shared axis. A gap means that isoform skips this exonic region. Each row's box is drawn at that isoform's own real exon length, which can be narrower than the column (alternative splice site); hover a box for its exact size. A ~amber header bp means isoforms don't all agree on this region's boundary, while a plain header means they do. Navy blocks mark where the primers bind, and green (with a ✓ by the name) means this isoform has a confirmed working amplicon, not just exon overlap. A row with a “‹ exons” / “exons ›” hint instead of any box means that isoform's exons exist but sit outside the current scroll position (a truncated isoform or alternate transcription start site) — click the hint to jump to them. Click a row to load it below.

★ = Ensembl canonical transcript (reference model, not necessarily the most expressed isoform)

Showing: ENSRNOT00000126363

97bp12.1kb82bp2315bp157bp32.8kb2.2kb4
Homer3 · ENSRNOT00000126363No amplicon found on this isoform (intron_only / not_aligned)

Off-target specificity

Specific

No paired forward+reverse off-target amplicon found against nt (whole genome/transcriptome). Screen requires >=2 total mismatches including >=2 within the last 5bp at the 3' end to clear a hit (NCBI Primer-BLAST-style stringency); hits with >=6 total mismatches are dropped as implausible.

Efficiency measurements

Ideal range:Dilution series 1.90–2.10·LinRegPCR 1.70–1.90·unknown method: not scored
No measurements yet for this primer pair.

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