ALPP 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 58 kDa observed
Observed band 58 kDa observed
Gel 12-15%
Positive control Small intestine
Negative control Adrenal gland
Important caveats
Reasons your observed band may differ from the expected size.
Calculated mass58 kDa
LocalizationCell membrane
Processing / PTMRecord-dependent
ReactivityHuman
Section 1

Real Curated ALPP Western Blot Protocols

Start with the molecular-weight rule, then compare verified publication-derived conditions.

Recommended Western blot protocol parameters
Sample / lysateDuodenum
Gel %12-15%
Load20-30 µg total protein per lane
TransferSemi-dry, standard transfer
Membrane0.45 µm PVDF
Blocking5% non-fat milk or 5% BSA in TBST
PrimaryA01718 at datasheet starting dilution
Primary incubationOvernight at 4 °C with gentle agitation
SecondarySpecies-matched HRP conjugate at validated dilution
Wash3 × 5 min in TBST
DetectionChemiluminescent substrate
ExposureBracket exposures to avoid saturation
Section 2

What Is the Expected ALPP Western Blot Band Size?

Use the product-observed 58 kDa band as the primary planning value and retain the UniProt calculated mass as context.

What am I looking at on my blot?
58 kDaMatches the authoritative product WB observation.
58 kDa calculatedUse as UniProt context, not as a replacement observed band.
Unexpected additional signalDo not assign identity without orthogonal positive/negative controls.
💡Expected ALPP appearancePlan around 58 kDa and keep the calculated mass as supporting context.
How each factor affects band size
Catalog-observed band58 kDa; use this as the primary experimental expectation.
Calculated mass58 kDa from UniProt P05187; retain as context.
Gel selection12-15%; shared with the recommended protocol and poster.
Specificity checkCompare the lead HPA positive and negative controls with A01718.
Why is my band missing or off?
SituationLikely causeNext action
58 kDaMatches the authoritative product WB observation.Confirm with orthogonal controls and the linked product record.
Additional bandMay reflect processing, modification, or non-specific signal.Run a dilution series and compare positive/negative controls.
Weak signalTarget abundance or transfer may be limiting.Verify transfer, increase positive-control abundance, and bracket exposure.

Sample controls for ALPP Western blot

🧪Use Small intestine as the first positive-control candidate and retain an orthogonal negative control.
Positive control: Small intestine (High)
Negative control: Adrenal gland (Not detected)
HPA protein score determines control status; other expression data is supporting context only.

HPA tissue expression evidence for ALPP

Comprehensive Human Protein Atlas IHC scoring per tissue. Rows are taken directly from the HPA tissue chart on each tissue page — click any row's HPA link to view the source.

Positive expression · recommended positive controls

Tissue Cell type Level Evidence Source
Small intestine Reported tissue cells High Protein (HPA) HPA →
Duodenum Reported tissue cells High Protein (HPA) HPA →
Placenta Reported tissue cells High Protein (HPA) HPA →
Rectum Reported tissue cells High Protein (HPA) HPA →

Undetected expression · recommended negative controls

Tissue Cell type Level Evidence Source
Adrenal gland Reported tissue cells Not detected Protein (HPA) HPA →
Appendix Reported tissue cells Not detected Protein (HPA) HPA →
Section 3

Advanced ALPP Western Blot Tips

Deeper troubleshooting and optimisation questions for ALPP, answered from its protein features.

Which band should guide the blot?
Use 58 kDa, the observation attached to the authoritative A01718 WB record.
How should calculated mass be interpreted?
Treat the UniProt calculated mass as context; it does not replace the catalog-observed 58 kDa expectation.
Which positive control should I start with?
Start with Small intestine, the lead HPA protein-expression candidate.
Which negative control is defensible?
Use Adrenal gland as an orthogonal HPA Not detected candidate.
Which gel should I use?
Use 12-15% consistently across the quick facts, protocol table, and poster.
What transfer method to use for ALPP Western blot?
Use the transfer method in the recommended protocol and verify transfer before blocking.
How should A01718 be started?
Start at the linked datasheet condition and run a three-point primary-antibody dilution test.
Which publication-derived protocols can I compare?
No verified publication protocol was supplied; use only the deterministic recommended protocol.
Boster reagents

ALPP Western Blot Reagents

Human-reactive ALPP Western blot reagents with authoritative product imagery.

Real WB dataWestern blot validation image for ALPP using A01718; observed band 58 kDa
Anti-Placental alkaline phosphatase (PLAP)/ALPP Antibody Picoband®
Cat # A01718
Real WB dataWestern blot validation image for ALPP using M01718-4; observed band 58 kDa
Anti-ALPP Antibody Picoband® (monoclonal, 6C7G3)
Cat # M01718-4

Only image-backed, WB-validated Human/Mouse/Rat recommendations from the prepared catalog evidence are shown.

Source: prepared picoband-wb product evidence; each card retains its own SKU, URL, observed band, and authoritative WB image.