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- Table of Contents
NMNAT1 / Nicotinamide/nicotinic acid mononucleotide adenylyltransferase 1 · Western blot design guide
Design a Western Blot for NMNAT1
Source-linked NMNAT1 Western blot protocol options, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-NMNAT1 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
NMNAT1 Western Blot Experimental Design Guide
Expected bands, source-linked protocol options, controls and antibodies — the at-a-glance facts below, then the full design guide.
Must know before running
| Expected band | ~31.9 kDa | |
| Observed band | ~28 kDa | |
| Gel | 10% (catalog A03221-1) | |
| Positive control | Adrenal gland (IHC candidate; verify WB) +4 more | |
| Negative control | Adipose tissue (IHC candidate; verify WB) |
Important caveats
Reasons your observed band may differ from the expected size.
| PTM | Phosphorylated | |
| Caveat | Phosphorylation-state controls | |
| Gene-set association | MSigDB C7 membership | |
| Isoform | 1 isoform(s) |
Section 1
Source-Linked NMNAT1 Western Blot Protocol Options
The A03221-1 protocol combines labelled catalog values with standard starting conditions. Published comparisons retain their own sample, reagent and detection scope.
| Sample / lysate | rat heart, rat kidney, mouse skeletal muscle, mouse heart, mouse kidney (catalog A03221-1) |
| Gel % | 10% (catalog A03221-1) |
| Load | 30 ug; reducing conditions (catalog A03221-1) |
| Transfer | a nitrocellulose membrane at 150 mA for 50-90 minutes (catalog A03221-1) |
| Membrane | nitrocellulose membrane (catalog A03221-1) |
| Blocking | 5% non-fat milk/TBS for 1.5 hour at RT (catalog A03221-1) |
| Primary antibody | A03221-1 · 0.5 μg/mL (catalog A03221-1) |
| Primary incubation | overnight at 4°C (catalog A03221-1) |
| Secondary antibody | goat anti-rabbit IgG-HRP, 1:5000 (catalog A03221-1) |
| Secondary incubation | 1.5 hour at RT (catalog A03221-1) |
| Wash | TBS-0.1%Tween 3 times with 5 minutes each (catalog A03221-1) |
| Detection | ECL (catalog A03221-1) |
Section 2
What Is the Expected NMNAT1 Western Blot Band Size?
NMNAT1 is predicted at 31.9 kDa, while antibody QC reports approximately 28 kDa; the cause of that difference is not established.
| Band near 28 kDa | Empirical NMNAT1 band reported in reducing tissue lysates; confirm identity with antibody controls |
| Band near 32 kDa | Close to the 31.9 kDa sequence-predicted monomer mass |
| Weak band in whole-cell lysate | Nuclear NMNAT1 may be easier to detect after nuclear enrichment |
| Higher-mass band after incomplete denaturation | Could reflect retained NMNAT1 homohexamer association; identity requires confirmation |
💡Expected NMNAT1 appearanceNMNAT1 has a predicted monomer mass of 31.9 kDa, while antibody QC reports a band at approximately 28 kDa in reducing tissue lysates; the cause of the difference is unestablished, so verify band identity with controls.
| Predicted monomer mass | 31.9 kDa from the UniProt sequence; the reported band is approximately 28 kDa |
| Ser117 phosphorylation | A documented modification with no demonstrated effect on band position |
| Thr119 phosphorylation | A documented modification with no demonstrated effect on band position |
| Homohexamer formation | Could yield higher-mass material if association survives sample preparation; reducing SDS-PAGE migration is not established |
| Situation | Likely cause | Next action |
|---|---|---|
| Band lower than expected | The reported approximately 28 kDa band is below the 31.9 kDa prediction; its migration difference is unexplained | Compare with the reported band and verify identity using NMNAT1 depletion or an independent antibody |
| Band higher than expected | Incomplete denaturation could retain homohexamer-associated material | Check sample denaturation and verify the higher band with NMNAT1 depletion |
| Multiple bands | Band identities are uncertain; the listed phosphorylation sites do not establish resolvable bands | Use NMNAT1 depletion and an independent antibody to identify the specific band |
| Weak or no signal | NMNAT1 is nuclear, so whole-cell signal may be dilute | Test a nuclear-enriched fraction alongside whole-cell lysate |
| No band in lysate | The nuclear protein may be underrepresented or below detection in the tested lysate | Check nuclear enrichment and a positive tissue lysate, then verify antibody performance |
Experiment evidence
Western blot images showing NMNAT1 band
A03221-1 · NMNAT1
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for NMNAT1 Western blot
🧪HPA-IHC candidate guidance (verify in WB): For positive controls for NMNAT1 in Western blot, you can use adrenal gland tissue, which HPA scores as medium expression.
Positive control: Adrenal gland (IHC candidate; verify WB)
Negative control: Adipose tissue (IHC candidate; verify WB)
Loading controls: Run GAPDH, β-actin, and a total-protein stain such as Ponceau alongside the samples.
⚠️Feasibility: NMNAT1 is nuclear, and HPA reports adipose tissue as not detected, making tissue controls feasible.
HPA tissue expression evidence for NMNAT1
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 |
|---|---|---|---|---|
| Adrenal gland | glandular cells | Medium | Protein (IHC) | HPA → |
| Bronchus | respiratory epithelial cells | Medium | Protein (IHC) | HPA → |
| Caudate | neuronal cells | Medium | Protein (IHC) | HPA → |
| Cerebral cortex | neuronal cells | Medium | Protein (IHC) | HPA → |
| Cervix | squamous epithelial cells | Medium | Protein (IHC) | HPA → |
Lower expression tissues · IHC evidence, not confirmed WB-negative controls
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Adipose tissue | adipocytes | Not detected | Protein (IHC) | HPA → |
| Lymph node | germinal center cells | Not detected | Protein (IHC) | HPA → |
| Oral mucosa | squamous epithelial cells | Not detected | Protein (IHC) | HPA → |
| Skeletal muscle | myocytes | Not detected | Protein (IHC) | HPA → |
| Spleen | cells in red pulp | Not detected | Protein (IHC) | HPA → |
Section 3
Advanced NMNAT1 Western Blot Tips
Deeper troubleshooting and optimisation questions for NMNAT1, answered from its protein features.
How should NMNAT1 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 NMNAT1 isoforms explain multiple bands?
Isoforms · Only one isoform is listed, with no alternative sequence supplied. Do not assign additional bands to annotated isoforms on this evidence alone.
Which NMNAT1 phosphorylation sites matter when interpreting bands?
PTM · UniProt lists phosphoserine at position 117 and phosphothreonine at position 119. Check which numbering convention an antibody or paper uses before comparing sites. These annotations alone do not establish a visible band shift.
Does this guide establish induction of NMNAT1?
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 NMNAT1?
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 A03221-1 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 NMNAT1 abundance be quantified across samples?
Quantitation · Quantify the same validated NMNAT1 band across samples, using consistent fraction preparation because NMNAT1 is nuclear. If assessing phosphorylation, distinguish a change at the annotated sites from a change in total NMNAT1 abundance.
Why is the NMNAT1 band near 28 kDa instead of 31.9 kDa?
Interpretation · The reported apparent band is about 28 kDa, while the predicted mass is 31.9 kDa. These values differ, but the supplied features do not establish why. Confirm the band with an NMNAT1-specific control rather than assigning the difference to phosphorylation.
NMNAT1 is annotated in the nucleus. Check a nuclear fraction when assessing detection, and keep fraction choice consistent across samples being compared.
NMNAT1 is annotated as a homohexamer. That makes assembly relevant when investigating a higher band, but the annotation alone does not show that an oligomer survives the blot preparation or identify a particular band.
Compare them with the reported approximately 28 kDa band and the 31.9 kDa predicted mass. The supplied features list one isoform, phosphorylation at UniProt positions 117 and 119, homohexamer formation, and interaction with ADPRT/PARP1. None of those features alone identifies an unexpected band; validate its NMNAT1 identity before assigning a cause.
NMNAT1 is annotated in the nucleus. Check a nuclear fraction when assessing detection, and keep fraction choice consistent across samples being compared.
NMNAT1 is annotated as a homohexamer. That makes assembly relevant when investigating a higher band, but the annotation alone does not show that an oligomer survives the blot preparation or identify a particular band.
Compare them with the reported approximately 28 kDa band and the 31.9 kDa predicted mass. The supplied features list one isoform, phosphorylation at UniProt positions 117 and 119, homohexamer formation, and interaction with ADPRT/PARP1. None of those features alone identifies an unexpected band; validate its NMNAT1 identity before assigning a cause.
Boster reagents
NMNAT1 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-NMNAT1 Antibody Picoband®
Cat # A03221-1
The catalog reports one anti-NMNAT1 antibody, A03221-1, with reported human, mouse, and rat reactivity. Its Western blot image shows a band near 28 kDa in rat heart and kidney and mouse skeletal muscle, heart, and kidney lysates; the expected size is 32 kDa.
Which to pick: A03221-1 is the only listed option and has a Western blot image for the specified rat and mouse tissues. Human reactivity is listed, but the supplied image does not show a human sample.
Source: BosterBio NMNAT1 gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.
References
- UniProt Consortium. UniProt entry Q9HAN9.
- Human Protein Atlas. NMNAT1 tissue expression.
- PMC12204165 — target-verified WB comparison
- PMC12853836 — target-verified WB comparison
- PMC7616709 — target-verified WB comparison