MIF 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 12.5 kDa observed
Observed band 12.5 kDa observed
Gel 15%
Positive control ⓘ Adrenal gland
Negative control ⓘ Heart muscle
Important caveats
Reasons your observed band may differ from the expected size.
ⓘCalculated mass12.5 kDa
ⓘLocalizationSecreted / Cytoplasm
ⓘProcessing / PTMRecord-dependent
ⓘReactivityHuman / Mouse / Rat
Section 1

Real Curated MIF Western Blot Protocols

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

Recommended Western blot protocol parameters
Sample / lysateAdipose tissue
Gel %15%
Load20-30 µg total protein per lane
TransferSemi-dry, short transfer
Membrane0.2 µm PVDF
Blocking5% non-fat milk or 5% BSA in TBST
PrimaryPA1052 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 MIF Western Blot Band Size?

Use the product-observed 12.5 kDa band as the primary planning value and retain the UniProt calculated mass as context.

What am I looking at on my blot?
12.5 kDaMatches the authoritative product WB observation.
12.5 kDa calculatedUse as UniProt context, not as a replacement observed band.
Unexpected additional signalDo not assign identity without orthogonal positive/negative controls.
💡Expected MIF appearancePlan around 12.5 kDa and keep the calculated mass as supporting context.
How each factor affects band size
Catalog-observed band12.5 kDa; use this as the primary experimental expectation.
Calculated mass12.5 kDa from UniProt P14174; retain as context.
Gel selection15%; shared with the recommended protocol and poster.
Specificity checkCompare the lead HPA positive and negative controls with PA1052.
Why is my band missing or off?
SituationLikely causeNext action
12.5 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 MIF Western blot

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

HPA tissue expression evidence for MIF

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
Adrenal gland Reported tissue cells Medium Protein (HPA) HPA →
Adipose tissue Reported tissue cells Medium Protein (HPA) HPA →
Breast Reported tissue cells Medium Protein (HPA) HPA →
Bronchus Reported tissue cells Medium Protein (HPA) HPA →

Undetected expression · recommended negative controls

Tissue Cell type Level Evidence Source
Heart muscle Reported tissue cells Not detected Protein (HPA) HPA →
Skeletal muscle Reported tissue cells Not detected Protein (HPA) HPA →
Section 3

Advanced MIF Western Blot Tips

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

Which band should guide the blot?
Use 12.5 kDa, the observation attached to the authoritative PA1052 WB record.
How should calculated mass be interpreted?
Treat the UniProt calculated mass as context; it does not replace the catalog-observed 12.5 kDa expectation.
Which positive control should I start with?
Start with Adrenal gland, the lead HPA protein-expression candidate.
Which negative control is defensible?
Use Heart muscle as an orthogonal HPA Not detected candidate.
Which gel should I use?
Use 15% consistently across the quick facts, protocol table, and poster.
What transfer method to use for MIF Western blot?
Use the transfer method in the recommended protocol and verify transfer before blocking.
How should PA1052 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

MIF Western Blot Reagents

Human/Mouse/Rat-reactive MIF Western blot reagents with authoritative product imagery.

Real WB dataWestern blot validation image for MIF using PA1052; observed band 12.5 kDa
Anti-MIF Antibody Picoband®
Cat # PA1052
Real WB dataWestern blot validation image for MIF using PB9274; observed band 12.5 kDa
Anti-MIF Antibody Picoband®
Cat # PB9274
Real WB dataWestern blot validation image for MIF using RP1020; observed band 12.5 kDa
Anti-MIF Antibody Picoband®
Cat # RP1020

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.