BMPR1A / Bone morphogenetic protein receptor type-1A · Western blot design guide

Design a Western Blot for BMPR1A

Real validated BMPR1A Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-BMPR1A 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 BMPR1A: expected band ~60.2 kDa, hero antibody A01581, catalog values and labelled standard workflow; separate PMC comparisons on the guide
Printable BMPR1A Western blot protocol sheet — expected band ~60.2 kDa, antibody A01581, controls and PMC citations. Open the full BMPR1A WB guide →

BMPR1A 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 ~60.2 kDa
Gel 12–15% (standard starting point)
Positive control ⓘ Cerebral cortex (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 Glycosylated + Cleaved
Caveat Modification-state controls
Gene-set association MSigDB Hallmark membership
Isoform 1 isoform(s)
Section 1

Real Curated BMPR1A Western Blot Protocols

The A01581 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 / lysatelysates from 293, mouse NIH/3T3 cell line (from left to right), (catalog A01581)
Gel %12–15% (standard starting point)
Load20–30 µg total protein per lane; optimize for abundance (standard starting point)
TransferStandard semi-dry transfer; verify efficiency (standard starting point)
Membrane0.45 µm PVDF (standard starting point)
Blocking5% milk or 5% BSA in TBST (standard starting point)
Primary antibodyA01581; use the WB datasheet starting dilution (standard starting point)
Primary incubationOvernight at 4 °C (standard starting point)
Secondary antibodygoat anti-rabbit IgG, 1:5000 (catalog A01581)
Secondary incubation1 h at room temperature (standard starting point)
Wash3 × 5 min in TBST (standard starting point)
DetectionECL; bracket exposures to avoid saturation (standard starting point)
Section 2

What Is the Expected BMPR1A Western Blot Band Size?

BMPR1A has a predicted 60.2 kDa precursor; signal-peptide cleavage and Asn73 glycosylation may affect migration, but no empirical band size or shift is established.

What am I looking at on my blot?
Band near 60.2 kDaconsistent with the predicted full-length BMPR1A precursor; confirm identity with controls
Band slightly below the precursor positioncould reflect removal of the 1–23 signal peptide
Band above the predicted positionN-linked glycosylation at Asn73 could affect migration, but its extent is unknown
Weak band in a soluble lysate fractioncell-membrane BMPR1A may be underrepresented
💡Expected BMPR1A appearanceUniProt predicts a 60.2 kDa full-length precursor; signal-peptide removal and N-linked glycosylation at Asn73 may affect migration, but no empirical band size is supplied, so confirm any candidate band with identity controls.
How each factor affects band size
Predicted full-length massplaces the 532-residue precursor at 60.2 kDa
Full-length precursor sequenceincludes the signal peptide in the 60.2 kDa prediction
Signal peptide at residues 1–23its removal could make the mature receptor smaller than the precursor
N-linked glycosylation at Asn73could change apparent migration; the size of any effect is unestablished
Why is my band missing or off?
SituationLikely causeNext action
No band in lysatemembrane-localized BMPR1A may be poorly recoveredcheck membrane extraction and compare with a membrane-enriched fraction
Band higher than expectedN-linked glycosylation at Asn73 could affect migration, but band identity is uncertaincompare glycosidase-treated and untreated samples and verify identity with BMPR1A depletion
Band lower than expectedsignal-peptide removal may reduce sizecheck antibody epitope coverage and verify the band with BMPR1A depletion
Multiple bandstheir identities are unresolved; the listed features do not establish distinct bandsuse BMPR1A depletion and compare glycosidase-treated samples
Weak or no signalcell-membrane BMPR1A may be underrepresented in the prepared samplecheck membrane-protein recovery and include a positive-control lysate

Sample controls for BMPR1A Western blot

🧪HPA-IHC candidate guidance (verify in WB): For positive controls for BMPR1A in Western blot, you can use cerebral cortex tissue, where HPA reports high expression.
Positive control: Cerebral cortex (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: As a cell-membrane protein, BMPR1A may be easier to detect in membrane-enriched lysates.

HPA tissue expression evidence for BMPR1A

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

TissueCell typeLevelEvidenceSource
Cerebral cortex endothelial cells High Protein (IHC) HPA →
Colon endothelial cells High Protein (IHC) HPA →
Gallbladder glandular cells High Protein (IHC) HPA →
Pancreas exocrine glandular cells High Protein (IHC) HPA →
Placenta trophoblastic cells High Protein (IHC) HPA →

Lower expression tissues · IHC evidence, not confirmed WB-negative controls

TissueCell typeLevelEvidenceSource
Adipose tissue adipocytes Not detected Protein (IHC) HPA →
Caudate glial cells Not detected Protein (IHC) HPA →
Cerebellum cells in granular layer Not detected Protein (IHC) HPA →
Esophagus squamous epithelial cells Not detected Protein (IHC) HPA →
Fallopian tube glandular cells Not detected Protein (IHC) HPA →
Section 3

Advanced BMPR1A Western Blot Tips

Deeper troubleshooting and optimisation questions for BMPR1A, answered from its protein features.

How should BMPR1A 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 BMPR1A isoforms explain multiple bands?
Isoforms · The supplied features list one isoform and no alternative sequence. They provide no basis for assigning multiple bands to distinct BMPR1A isoforms.
Is BMPR1A glycosylated?
PTM · The supplied features list one N-linked glycosylation site, Asn73 in UniProt numbering. Compare treated and untreated samples if assessing its contribution to an observed band; the annotation alone does not predict the size of a shift.
Does this guide establish induction of BMPR1A?
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 BMPR1A?
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 A01581 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 BMPR1A bands be quantified across samples?
Quantitation · Because BMPR1A is a membrane protein, prepare samples consistently and compare equivalent loaded material, including membrane-containing material. The supplied features provide no induction condition or expected change in abundance.
Why might a BMPR1A band differ from 60.2 kDa?
Interpretation · 60.2 kDa is the predicted mass, not an observed band position. BMPR1A has a signal peptide at residues 1–23 and an N-linked glycosylation site at Asn73, using the supplied UniProt numbering. These features may affect the protein's mass, but they do not establish a visible shift or explain a particular band difference.

BMPR1A is annotated at the cell membrane and cell surface as a single-pass type I membrane protein. Retain the membrane-containing material during sample preparation so it is represented in the material loaded for the blot.

Five disulfide bonds are annotated. Keep reducing conditions consistent across samples when comparing bands. The supplied features do not establish whether changing those conditions would alter BMPR1A's apparent position.

Check its position against the predicted 60.2 kDa mass, then consider the annotated signal peptide at residues 1–23 and N-linked site at Asn73. These UniProt features suggest possibilities to investigate; they do not identify an unexpected band or establish its cause.
Boster reagents

BMPR1A 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 lysates from 293, mouse NIH/3T3 cell line (from left to right), using BMPR1A Antibody (C180) . A01581 was diluted at 1:1000 at each lane. A goat anti-rabbit IgG H&L (HRP) at 1:5000 dilution was used as the secondary antibody. Lysates at 35ug per lane.
Anti-BMPR1A Antibody (C-term)
Cat # A01581
Real WB data Western blot analysis of BMPR1A using anti-BMPR1A antibody (A01581-1). 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 293T whole cell lysates, Lane 2: human MCF-7 whole cell lysates, Lane 3: rat skeletal muscle tissue 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-BMPR1A antigen affinity purified polyclonal antibody (Catalog # A01581-1) 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 BMPR1A at approximately 60 kDa. The expected band size for BMPR1A is at 60 kDa.
Anti-BMPR1A Antibody Picoband®
Cat # A01581-1

Both listed anti-BMPR1A antibodies have Western blot images in the reported samples. A01581 was shown with 293 and mouse NIH/3T3 lysates; A01581-1 was shown with human 293T and MCF-7 cells and rat skeletal muscle. The supplied evidence does not show independent validation.

Which to pick: Choose A01581 for mouse NIH/3T3 lysates or A01581-1 for rat skeletal muscle lysates. For human cells, compare the reported samples: 293 for A01581, or 293T and MCF-7 for A01581-1. Both have WB images.

Source: BosterBio BMPR1A gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.