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- Table of Contents
TWIST1 / Twist-related protein 1 · Western blot design guide
Design a Western Blot for TWIST1
Real validated TWIST1 Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-TWIST1 WB antibodies. Everything you need to plan the experiment before you commit precious samples.
Evidence assembled September 2026 · For research use; verify linked source records and product datasheet before use
TWIST1 Western Blot Experimental Design Guide
Expected bands, validated protocols, controls and antibodies — the at-a-glance facts below, then the full design guide.
Must know before running
| Expected band | ~21 kDa | |
| Gel | 12–15% (standard starting point) | |
| Negative control | Suggested KO / knockdown lysate |
Important caveats
Reasons your observed band may differ from the expected size.
| PTM | — | |
| Caveat | — | |
| Gene-set association | MSigDB C7 membership | |
| Isoform | 1 isoform(s) |
Section 1
Real Curated TWIST1 Western Blot Protocols
The A00980 protocol combines labelled catalog values with standard starting conditions. Published comparisons retain their own sample, reagent and detection scope.
| Sample / lysate | Jurkat (40ug), RAW264.7 (40ug) (catalog A00980) |
| Gel % | 12–15% (standard starting point) |
| Load | 20–30 µg total protein per lane; optimize for abundance (standard starting point) |
| Transfer | Short semi-dry transfer; verify retention (standard starting point) |
| Membrane | 0.45 µm PVDF (standard starting point) |
| Blocking | 5% milk or 5% BSA in TBST (standard starting point) |
| Primary antibody | A00980; use the WB datasheet starting dilution (standard starting point) |
| Primary incubation | Overnight at 4 °C (standard starting point) |
| Secondary antibody | Species-matched HRP conjugate at validated dilution (standard starting point) |
| Secondary incubation | 1 h at room temperature (standard starting point) |
| Wash | 3 × 5 min in TBST (standard starting point) |
| Detection | ECL; bracket exposures to avoid saturation (standard starting point) |
Section 2
What Is the Expected TWIST1 Western Blot Band Size?
TWIST1 is predicted at 21 kDa; dimerization could affect migration, but no shifted band or empirical band size is established.
| Band near 21 kDa | consistent with predicted full-length TWIST1; confirm identity with antibody controls |
| Band near 42 kDa | could reflect a TWIST1 homodimer if it survives sample preparation |
| Higher band of uncertain size | could reflect a surviving complex with another bHLH protein; identity requires confirmation |
| Weak band in a cytosolic fraction | consistent with TWIST1's nuclear location |
💡Expected TWIST1 appearanceUniProt predicts a 21 kDa TWIST1 monomer; no empirical band size is supplied, so confirm any band near that size with antibody and fractionation controls.
| Predicted molecular mass | places the full-length monomer near 21 kDa |
| 202-amino-acid sequence | defines the full-length protein underlying the predicted mass |
| TWIST1 homodimerization | could produce a band near twice the monomer size if the dimer survives sample preparation |
| Heterodimerization with E proteins such as TCF3 | could produce a higher band if the complex survives; its apparent size is not supplied |
| Situation | Likely cause | Next action |
|---|---|---|
| No band in lysate | nuclear TWIST1 may be poorly recovered | check nuclear extraction and a nuclear fraction control |
| Band higher than expected | a TWIST1 dimer may survive sample preparation | compare denaturing conditions and verify TWIST1 identity |
| Band lower than expected | band identity is uncertain; no cleavage feature is listed | check antibody specificity and compare an independent TWIST1 antibody |
| Multiple bands | monomer and surviving dimers are possible, but identities are unproven | compare denaturing conditions and verify each band |
| Weak or no signal | nuclear TWIST1 may be diluted in whole-cell lysate | enrich the nuclear fraction and check extraction recovery |
| Fragments below expected size | degradation or nonspecific binding is possible | check sample integrity and validate with an independent antibody |
Experiment evidence
Western blot images showing TWIST1 band
A00980 · TWIST1
M00980 · TWIST1
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for TWIST1 Western blot
🧪For positive controls for TWIST1 in Western blot, you can use no HPA-supported tissue or cell line from the supplied evidence.
Positive control: No high/medium HPA tissue identified
Negative control: Suggested KO / knockdown lysate
Loading controls: Run GAPDH, β-actin, and a total-protein stain alongside the samples.
⚠️Feasibility: HPA provides no tissue data, so a positive sample and a clean negative tissue cannot be identified.
HPA tissue expression evidence for TWIST1
Comprehensive Human Protein Atlas IHC scoring per tissue. Rows are taken directly from the HPA tissue chart — click any row's HPA link to view the source.
Higher expression tissues · candidate positive controls from IHC
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| No high/medium HPA tissues identified in the supplied evidence. | ||||
Lower expression tissues · IHC evidence, not confirmed WB-negative controls
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| No lower-expression tissue rows available in the supplied evidence. | ||||
Section 3
Advanced TWIST1 Western Blot Tips
Deeper troubleshooting and optimisation questions for TWIST1, answered from its protein features.
How should TWIST1 band migration be interpreted?
Band shift · Use the separately labelled calculated mass and catalog-observed evidence above. A sequence annotation does not establish an observed migration shift. Verify target identity with orthogonal controls.
Could annotated isoforms explain multiple TWIST1 bands?
Isoforms · The supplied record lists one isoform and no alternative sequence. Multiple bands cannot be assigned to annotated TWIST1 isoforms from these features alone.
Do listed modifications explain a TWIST1 band shift?
PTM · No modified residues or glycosylation sites are listed. The supplied features therefore do not support assigning a shifted band to a specific modification.
Does this guide establish induction of TWIST1?
Induction · No general induction response is established by this guide. A pathway or gene-set association is not evidence of induction in a particular specimen. Verify the relevant treatment and control in a target-specific experiment.
How should transfer be checked for TWIST1?
Transfer · Standard workflow guidance: verify transfer efficiency for the intended target size before interpreting a weak signal. Use total-protein assessment and optimize transfer for the membrane, gel and apparatus; the labelled catalog values take precedence.
How should blocking be optimized?
Blocking · Standard workflow guidance: follow the A00980 datasheet where specified. Otherwise compare 5% milk or 5% BSA in TBST; for a phospho-specific assay start with BSA. Optimize background and specific signal with matched controls.
How should TWIST1 be quantified?
Quantitation · Standard workflow guidance: quantify only a validated target band within the linear exposure range. Use consistent sample preparation and loading, retain biological replicates, and avoid interpreting saturation or loading differences as regulation.
How should a TWIST1 band compare with its predicted mass?
Interpretation · TWIST1 has a predicted mass of 21 kDa. No empirical apparent band position is supplied, so use 21 kDa as a reference rather than an expected exact migration position. The listed features do not establish a band shift.
TWIST1 is annotated as nuclear. Include a nuclear fraction when assessing whether a weak or absent signal reflects sample preparation.
TWIST1 dimerizes with another bHLH protein for efficient DNA binding and can form homodimers or heterodimers with E proteins such as TCF3. That interaction alone does not identify a higher Western blot band as a dimer.
Compare samples prepared with the same fractionation approach, since TWIST1 is nuclear. The supplied features do not specify an induction condition or an empirical band position; verify the band used for quantitation before comparing its intensity.
TWIST1 is annotated as nuclear. Include a nuclear fraction when assessing whether a weak or absent signal reflects sample preparation.
TWIST1 dimerizes with another bHLH protein for efficient DNA binding and can form homodimers or heterodimers with E proteins such as TCF3. That interaction alone does not identify a higher Western blot band as a dimer.
Compare samples prepared with the same fractionation approach, since TWIST1 is nuclear. The supplied features do not specify an induction condition or an empirical band position; verify the band used for quantitation before comparing its intensity.
Boster reagents
TWIST1 Western Blot Antibodies
Catalog antibodies with Western blot application and product-specific WB images. Evaluate suitability with the reported sample, controls and experimental conditions.
Real WB data
Anti-TWIST1 (M1) Antibody
Cat # A00980
Real WB data
Anti-TWIST1 monoclonal Antibody
Cat # M00980
Both antibodies list human and mouse reactivity and have WB images. A00980’s caption reports Jurkat and RAW264.7 lysates at 1:500, with 40 µg per lane. M00980’s lists NIH/3T3 and five other cell lysates. No publication evidence was supplied.
Which to pick: Choose A00980 if its reported Jurkat or RAW264.7 samples and 1:500 dilution match your setup. Choose M00980 for a monoclonal antibody with WB examples using NIH/3T3, Jurkat, HeLa, A549, Raji, and OCM1 lysates.
Source: BosterBio TWIST1 gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.
References
- UniProt Consortium. UniProt entry Q15672.
- Human Protein Atlas. TWIST1 tissue expression.
- PMC11489465 — target-verified WB comparison
- PMC11997014 — target-verified WB comparison
- PMC3360067 — target-verified WB comparison