RPL7A / Large ribosomal subunit protein eL8 · Western blot design guide

Design a Western Blot for RPL7A

Source-linked RPL7A Western blot protocol options, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-RPL7A 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

Western blot protocol sheet for RPL7A: expected band ~30 kDa, hero antibody M08246-1, catalog values and labelled standard workflow; separate PMC comparisons on the guide — Printable **RPL7A** Western blot protocol sheet — expected band ~30 kDa, antibody M08246-1, controls and PMC citations. Open the full RPL7A WB guide →

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RPL7A 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	~30 kDa
	Observed band	~30 kDa
	Gel	5–20% (catalog M08246-1)
	Negative control ⓘ	Suggested KO / knockdown lysate

Important caveats

Reasons your observed band may differ from the expected size.

	PTM	Acetylated + Ubl conjugation
	Caveat	Modification-state controls
	Gene-set association	MSigDB C7 membership
	Isoform	1 isoform(s)

Section 1

Source-Linked RPL7A Western Blot Protocol Options

The M08246-1 protocol combines labelled catalog values with standard starting conditions. Published comparisons retain their own sample, reagent and detection scope.

Recommended Western blot protocol parameters
Sample / lysate	human Hela, human MCF-7, human K562, human Jurkat, rat pancreas, rat PC-12, mouse pancreas, mouse RAW264.7 (catalog M08246-1)
Gel %	5–20% (catalog M08246-1)
Load	30 ug; reducing conditions (catalog M08246-1)
Transfer	a nitrocellulose membrane at 150 mA for 50-90 minutes (catalog M08246-1)
Membrane	nitrocellulose membrane (catalog M08246-1)
Blocking	5% non-fat milk/TBS for 1.5 hour at RT (catalog M08246-1)
Primary antibody	M08246-1 · 1:1000 (catalog M08246-1)
Primary incubation	overnight at 4°C (catalog M08246-1)
Secondary antibody	goat anti-rabbit IgG-HRP, 1:500 (catalog M08246-1)
Secondary incubation	1.5 hour at RT (catalog M08246-1)
Wash	TBS-0.1%Tween 3 times with 5 minutes each (catalog M08246-1)
Detection	ECL (catalog M08246-1)

Section 2

What Is the Expected RPL7A Western Blot Band Size?

RPL7A is predicted at 30 kDa and observed at ~30 kDa in reducing whole-cell lysates; verify band identity with a control.

What am I looking at on my blot?
Band at ~30 kDa in whole-cell lysate	Matches the observed RPL7A band; confirm identity with a control
Band near 30 kDa in a cytoplasmic fraction	Consistent with RPL7A's cytoplasmic location
Single sharp band near 30 kDa	Consistent with the predicted mass and single annotated isoform
No distinct shifted band beside ~30 kDa	The annotated lysine acetylation sites do not establish a resolvable shift

💡Expected RPL7A appearanceUniProt predicts 30 kDa, and antibody QC shows a band at ~30 kDa in reducing whole-cell lysates; confirm its identity with a positive control.

How each factor affects band size
UniProt predicted mass	Places RPL7A near 30 kDa, matching the observed ~30 kDa band
N6-acetyllysine at residue 34	May modify RPL7A; no apparent size shift is established
Alternate N6-acetyllysine at residue 97	May modify RPL7A; no apparent size shift is established
N6-acetyllysine at residue 217	May modify RPL7A; no apparent size shift is established

Why is my band missing or off?
Situation	Likely cause	Next action
No band in lysate	RPL7A signal may be below detection	Check lysate loading and compare with a positive control
Band higher than expected	The higher band's identity or migration is unestablished	Compare with a positive control and check antibody specificity
Band lower than expected	The lower band's identity is unestablished	Compare with a positive control and check antibody specificity
Multiple bands	The single annotated isoform does not explain distinct bands	Identify the ~30 kDa band with a positive control
Weak or no signal	Insufficient signal or inefficient transfer or detection	Check loading, transfer and antibody detection with a positive control

Source: UniProt P62424 Human Protein Atlas product datasheet (M08246-1)

Experiment evidence

Western blot images showing RPL7A band

M08246-1 · RPL7A

← swipe / scroll for more images →

Real WB data behind the band-size expectations in this section.

Sample controls for RPL7A Western blot

🧪For positive controls for RPL7A in Western blot, you can use an independently validated RPL7A-positive cell lysate; the supplied HPA evidence names no positive tissue or cell.

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 expression data to establish a positive sample or a clean negative tissue.

HPA tissue expression evidence for RPL7A

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 RPL7A Western Blot Tips

Deeper troubleshooting and optimisation questions for RPL7A, answered from its protein features.

Where should the RPL7A band appear?

Band shift · RPL7A has a predicted mass of 30 kDa, matching the reported apparent band near 30 kDa. Use that region as a starting point for identification; size alone does not confirm identity.

Could RPL7A isoforms produce multiple bands?

Isoforms · The supplied record lists one isoform and no alternative sequence. It therefore provides no isoform-based explanation for multiple bands.

Can acetylation explain a shifted RPL7A band?

PTM · UniProt lists N6-acetyllysine at positions 34, 97 (alternate), and 217. These are UniProt coordinates; antibody or paper numbering may differ. The listed modifications alone do not establish a visible shift or explain a difference between apparent and predicted mass.

Does this guide establish induction of RPL7A?

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.

What transfer method to use for RPL7A Western blot?

Transfer · Plan transfer around the approximately 30-kDa target and verify that material reaches and remains on the membrane. The supplied features do not establish an optimal transfer method.

How should blocking be optimized?

Blocking · Standard workflow guidance: follow the M08246-1 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.

What should guide RPL7A band quantitation?

Quantitation · Quantify a verified band near 30 kDa under consistent loading and detection conditions. RPL7A is a cytoplasmic component of the large ribosomal subunit; the supplied features do not establish that its abundance is constant across conditions.

How should a higher RPL7A band be interpreted?

Interpretation · RPL7A is a component of the large ribosomal subunit and has a Ubl conjugation keyword, but the supplied features specify no conjugation site or higher-band mass. A higher band cannot be assigned to conjugation from this record alone.

No signal peptide or propeptide is listed, so the supplied features provide no documented processing event to explain a lower band. Its identity needs independent verification.

Boster reagents

RPL7A 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

Western blot analysis of RPL7A using anti-RPL7A antibody (M08246-1). Electrophoresis was performed on a 5-20% SDS-PAGE gel at 70V (Stacking gel) / 90V (Resolving gel) for 2-3 hours. The sample well of each lane was loaded with 30 ug of sample under reducing conditions. Lane 1: human Hela whole cell lysates, Lane 2: human MCF-7 whole cell lysates, Lane 3: human K562 whole cell lysates, Lane 4: human Jurkat whole cell lysates, Lane 5: rat pancreas tissue lysates, Lane 6: rat PC-12 whole cell lysates, Lane 7: mouse pancreas tissue lysates, Lane 8: mouse RAW264.7 whole cell lysates. 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-RPL7A antigen affinity purified monoclonal antibody (Catalog # M08246-1) at 1:1000 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 1:500 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 RPL7A at approximately 30 kDa. The expected band size for RPL7A is at 30 kDa.

Anti-RPL7A Rabbit Monoclonal Antibody

Cat # M08246-1

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The catalog reports one anti-RPL7A rabbit monoclonal antibody, M08246-1, for Western blotting. Its WB image reports an approximately 30 kDa band in the human, rat, and mouse lysates named in the caption. No independent publication evidence was supplied.

Which to pick: M08246-1 is the only listed option. Its reported reactivity is human, mouse, and rat, and its WB image includes specific cell and tissue lysates from all three. Use those tested samples and the reported 1:1000 primary dilution to judge fit.

Source: BosterBio RPL7A gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.

References

UniProt Consortium. UniProt entry P62424.
Human Protein Atlas. RPL7A tissue expression.
PMC10300072 — target-verified WB comparison
PMC3845203 — target-verified WB comparison
PMC9388909 — target-verified WB comparison