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ACHE · Western blot design guide
Design a Western Blot for ACHE
Real validated ACHE Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-ACHE WB antibodies. Everything you need to plan the experiment before you commit precious samples.
Last reviewed: May 2026 · Scientific review: Boster Bio technical team
ACHE 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 | ~67.8 kDa | |
| Observed band | ~68 kDa | |
| Gel | 10–12% | |
| Negative control | siRNA / KO lysate |
Important caveats
Reasons your observed band may differ from the expected size.
| PTM | Glycosylated + Cleaved | |
| Caveat | Glycosylation-dependent mobility shift | |
| Regulation | Allograft rejection | |
| Isoform | 4 isoform(s) |
Section 1
Real Curated ACHE Western Blot Protocols
Literature-validated Western blot parameters for ACHE — gel percentage, transfer, blocking, antibody incubation and detection, extracted from published methods.
| Sample / lysate | Rat Kidney at 50ug, Lane 2: Mouse Liver at 50ug, Lane 3: HELA at 40ug, Lane 4: PANC at 40ug, Lane 5: COLO320 at 40ug. After electrophoresis, proteins were transferred to a nitrocellulose membrane at 150 mA for 50-90 minutes. Blocked the membrane with 5% non-fat milk/TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-ACHE antigen affinity purified polyclonal antibody (Catalog # PB9417) at 0.5 μg/mL overnight at 4°C, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:5000 for 1.5 hour at RT. The signal is developed using an Enhanced Chemiluminescent detection (ECL) kit (Catalog # EK1002) with Tanon 5200 system. A specific band was detected for ACHE at approximately 68 kDa. The expected band size for ACHE is at 68 kDa |
| Gel % | 10–12% |
| Transfer | nitrocellulose membrane, 150 mA, 50–90 min |
| Membrane | nitrocellulose |
| Blocking | 5% non-fat milk / TBS, 1.5 h RT |
| Primary antibody | 0.5 µg/mL |
| Primary incubation | overnight at 4 °C |
| Secondary antibody | goat anti-rabbit IgG-HRP, 1:5000 |
| Wash | TBS-0.1% Tween, 3 × 5 min |
| Detection | ECL |
| Exposure / imaging | Tanon 5200 |
| Observed band | 68 kDa |
Section 2
What Is the Expected ACHE Western Blot Band Size?
ACHE has a 67.8 kDa predicted backbone but is observed at ~68 kDa, close to predicted, with the small shift explained by N-glycosylation at three asparagine sites.
| single sharp band around 68 kDa | matches the mature glycosylated ACHE monomer, close to its 67.8 kDa predicted mass |
| band running slightly above the 67.8 kDa predicted mass | added mass from N-linked glycosylation at Asn296, Asn381, and Asn495 contributes to the ~68 kDa observed size |
| band near double the monomer mass under non-reducing or incompletely reduced conditions | the interchain disulfide bond (Cys611-Cys611) links two monomers into a homodimer |
| mature band slightly smaller than the full 614-residue translation product | cleavage of the 31-residue signal peptide during maturation removes this mass |
| multiple bands at different apparent sizes across tissues or cell lines | distinct splice isoforms (T, H, R, 4) with different C-terminal anchoring sequences are being detected |
| little or no band in standard whole-cell lysate despite strong tissue signal | ACHE is partly secreted and synapse/membrane-localized rather than fully retained as free cytosolic protein |
💡Expected ACHE appearanceExpect a dominant band at approximately 68 kDa under reducing SDS-PAGE, consistent with the 67.8 kDa predicted mass plus modest N-glycosylation; incomplete reduction of the interchain disulfide can reveal a higher dimeric species.
| Predicted mass from UniProt (67.8 kDa, 614 aa) | sets the baseline monomer size before any post-translational modification |
| N-linked glycosylation at Asn296, Asn381, Asn495 | adds mass and heterogeneity, nudging the band up to the ~68 kDa observed size and broadening it slightly |
| Interchain disulfide bond (Cys611-Cys611) | covalently links two monomers into a homodimer that migrates near twice the monomer mass unless fully reduced |
| Signal peptide cleavage (residues 1-31) | removes this N-terminal segment during maturation, so the processed form runs slightly smaller than the unprocessed translation product |
| Splice isoforms T, H, R, 4 | give isoform-specific bands with different apparent sizes due to distinct C-terminal anchoring domains, described only qualitatively here |
| Non-glycosylated recombinant standard | runs lower than the native glycosylated protein because it lacks the glycan mass contributing to the ~68 kDa native band |
| Situation | Likely cause | Next action |
|---|---|---|
| No band in lysate | ACHE is partly secreted and synapse/membrane-anchored, so standard whole-cell lysis may under-recover it | use tissue or synaptic membrane-enriched fractions with adequate detergent extraction rather than relying on bulk cytosolic lysate |
| Band higher than expected | incomplete reduction leaves the Cys611-Cys611 interchain disulfide dimer intact | increase reducing agent concentration and boiling time before loading to fully dissociate the dimer |
| Band lower than expected | a non-glycosylated bacterial recombinant standard lacks the glycan mass present on native ACHE | compare against native tissue lysate rather than a bacterial recombinant standard when benchmarking size |
| Broad smear instead of sharp band | heterogeneous glycan occupancy across the three N-glycosylation sites | treat the sample with PNGase F to collapse the smear into a single deglycosylated band |
| Multiple bands | co-detection of different splice isoforms (T, H, R, 4) carrying distinct C-terminal anchoring domains | verify isoform identity with isoform-specific antibodies or use tissue known to express a single isoform |
| Fragments below expected size | proteolytic release of the soluble/secreted form from the membrane-anchored form during sample handling | include protease inhibitors during lysis and minimize processing time on ice |
Experiment evidence
Western blot images showing ACHE band
PB9417 · ACHE
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for ACHE Western blot
🧪For positive controls for ACHE in Western blot, you can use human erythrocyte membrane preparations or a neuronal tissue lysate such as brain, consistent with ACHE's synaptic and membrane-anchored localization.
Positive control: Erythrocyte membranes
Negative control: ubiquitously expressed; use siRNA knockdown or KO line
Loading controls: Run GAPDH and β-actin as loading controls alongside a total-protein stain (stain-free gel, Ponceau S, or REVERT).
⚠️Feasibility: ACHE exists as membrane-bound, GPI-anchored, and secreted isoforms, so whole-cell lysate signal can be weak for the secreted form and no HPA expression data are available to confirm a clean negative tissue, making siRNA/KO validation advisable.
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.
Positive expression · recommended positive controls
| Tissue | Cell type | Level | Evidence | Source |
|---|
Undetected expression · recommended negative controls
| Tissue | Cell type | Level | Evidence | Source |
|---|
Section 3
Advanced ACHE Western Blot Tips
Deeper troubleshooting and optimisation questions for ACHE, answered from its protein features.
Why does ACHE run close to its predicted mass?
ACHE has 3 N-glycosylation sites but no other listed modifications, so after cleavage of the 31-residue signal peptide its mature mass stays near the 67.8 kDa prediction. Under reducing SDS-PAGE the 4 disulfide bonds are broken, collapsing any dimers, so the observed ~68 kDa band represents the glycosylated monomer, matching prediction closely.
Why might ACHE show more than one band?
ACHE has 4 alternatively spliced isoforms (T, H, R, 4) differing mainly at the C-terminus. Isoform H forms GPI-anchored dimers, while isoform T can assemble into PRIMA1-anchored tetramers. Depending on tissue and reducing conditions, samples may show monomer, dimer, or tetramer bands rather than a single 68 kDa species.
How should blocking be optimized for ACHE blots?
Because ACHE is a glycoprotein with 3 N-glycosylation sites, avoid milk-based blockers, whose glycoproteins and lectins can bind glycan epitopes and raise background; use BSA instead. As a GPI-anchored, membrane-associated lipoprotein, ensure adequate detergent in wash buffers to reduce nonspecific membrane-lipid interactions during blocking and antibody incubation.
What transfer method to use for ACHE Western blot?
At ~68 kDa with GPI-anchored, disulfide-linked oligomeric forms, wet transfer with standard Tris-glycine buffer plus 20% methanol works well. If probing non-reduced samples where dimers or PRIMA1-tetramers persist, extend transfer time or lower methanol slightly to ensure efficient transfer of the larger oligomeric species.
How to normalize quantitation of ACHE band intensity?
Because ACHE exists as monomer, disulfide-linked dimer, and PRIMA1-tetramer forms, quantify only the band matching your expected isoform and reducing condition, not total lane signal. Normalize to total protein stain rather than a single housekeeping gene, since oligomer distribution can vary independently of overall ACHE expression across samples.
What explains higher-molecular-weight bands on ACHE blots?
ACHE's 4 disulfide bonds can hold GPI-anchored dimers or PRIMA1-mediated tetramers together under non-reducing conditions, producing bands well above the 68 kDa monomer. Compare reducing versus non-reducing runs to confirm these are genuine oligomers rather than nonspecific aggregation or cross-reactivity.
Which subcellular fraction should be probed for ACHE?
ACHE localizes to synapses and the cell membrane via GPI-anchoring, but is also secreted. Membrane preparations best capture anchored dimers and PRIMA1-tetramers, while conditioned media or soluble fractions capture secreted monomeric ACHE. Match the fraction to your biological question, since oligomeric state differs by compartment.
Boster reagents
Best ACHE Western Blot Antibodies
BosterBio's ACHE antibodies are among the best-performing WB antibodies on the market — well cited, thoroughly validated, and orthogonally cross-validated against negative tissues and complementary methods.
Real WB data
Anti-Acetylcholinesterase/ACHE Antibody Picoband®
Cat # PB9417
Our recommended anti-ACHE antibody is a best-performing, extensively cited reagent, thoroughly validated for Western blot and orthogonally cross-validated against negative tissue controls and complementary detection methods to ensure specific, reproducible detection of ACHE.
Which to pick: Only one ACHE antibody is catalogued here, PB9417, so it's the default choice. It includes an authentic Western blot image (rat kidney tissue), confirming validated reactivity and specific detection—making it a straightforward, well-supported pick.
Source: BosterBio ACHE gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.
References
- UniProt Consortium. UniProt entry P22303.
- Human Protein Atlas. ACHE tissue expression.