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- Table of Contents
Real validated LYVE1 Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-LYVE1 WB antibodies. Everything you need to plan the experiment before you commit precious samples.
Expected bands, validated protocols, controls and antibodies — the at-a-glance facts below, then the full design guide.
| Expected band | ~35.2 kDa | |
| Observed band | ~70 kDa | |
| Gel | 10% (catalog A04027-2) | |
| Positive control | Colon (IHC candidate; verify WB) +1 more | |
| Negative control | Adipose tissue (IHC candidate; verify WB) |
| PTM | Glycosylated + Cleaved | |
| Caveat | Band identity controls | |
| Gene-set association | MSigDB C7 membership | |
| Isoform | 1 isoform(s) |
The A04027-2 protocol combines labelled catalog values with standard starting conditions. Published comparisons retain their own sample, reagent and detection scope.
| Sample / lysate | human K562, human HepG2, human HEL (catalog A04027-2) |
| Gel % | 10% (catalog A04027-2) |
| Load | 30 ug; reducing conditions (catalog A04027-2) |
| Transfer | a nitrocellulose membrane at 150 mA for 50-90 minutes (catalog A04027-2) |
| Membrane | nitrocellulose membrane (catalog A04027-2) |
| Blocking | 5% non-fat milk/TBS for 1.5 hour at RT (catalog A04027-2) |
| Primary antibody | A04027-2 · 1:1000 (catalog A04027-2) |
| Primary incubation | overnight at 4°C (catalog A04027-2) |
| Secondary antibody | goat anti-rabbit IgG-HRP, 1:1000 (catalog A04027-2) |
| Secondary incubation | 1.5 hour at RT (catalog A04027-2) |
| Wash | TBS-0.1%Tween 3 times with 5 minutes each (catalog A04027-2) |
| Detection | ECL (catalog A04027-2) |
LYVE1 is predicted at 35.2 kDa, but a reducing-condition blot shows about 70 kDa; the cause of this difference is not established.
| Band near 70 kDa under reducing conditions | Empirical LYVE1 band; its difference from the predicted mass is unexplained |
| Band near 35 kDa | Consistent with the predicted 35.2 kDa precursor mass; confirm identity |
| Higher band under nonreducing conditions | May reflect disulfide-linked LYVE1 homodimer |
| Band below the precursor position | May reflect signal-peptide cleavage; confirm identity |
| Predicted precursor mass | 35.2 kDa by sequence; the empirical reducing-condition band is near 70 kDa |
| N-linked glycosylation at Asn53 | May affect apparent migration; no shift is established for this site |
| N-linked glycosylation at Asn130 | May affect apparent migration; no shift is established for this site |
| Disulfide-linked homodimer | May produce a band near twice the monomer mass without complete reduction |
| Signal peptide at residues 1–19 | Cleavage makes the mature chain smaller than the precursor; its band position is not supplied |
| Situation | Likely cause | Next action |
|---|---|---|
| No band in lysate | Membrane-associated LYVE1 may be poorly recovered | Check membrane extraction and a positive-control lysate |
| Band higher than expected | A disulfide-linked homodimer may persist with incomplete reduction | Compare reducing and nonreducing samples; confirm identity with an independent antibody or LYVE1 depletion |
| Band lower than expected | Signal-peptide cleavage may reduce precursor size | Compare with a positive control and confirm band identity |
| Broad smear instead of sharp band | Variable N-linked glycosylation is possible at Asn53 and Asn130 | Compare untreated and deglycosylated samples; confirm identity |
| Multiple bands | Precursor processing or incomplete reduction may contribute | Compare reducing conditions and confirm each band with an independent antibody or LYVE1 depletion |
| Weak or no signal | Membrane protein recovery may be insufficient | Check extraction and loading against a positive control |
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.
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Colon | endothelial cells | Medium | Protein (IHC) | HPA → |
| Lung | macrophages | Medium | Protein (IHC) | HPA → |
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Adipose tissue | adipocytes | Not detected | Protein (IHC) | HPA → |
| Appendix | glandular cells | Not detected | Protein (IHC) | HPA → |
| Bone marrow | hematopoietic cells | Not detected | Protein (IHC) | HPA → |
| Bronchus | respiratory epithelial cells | Not detected | Protein (IHC) | HPA → |
| Cerebellum | cells in granular layer | Not detected | Protein (IHC) | HPA → |
Deeper troubleshooting and optimisation questions for LYVE1, answered from its protein features.
Catalog antibodies with Western blot application and product-specific WB images. Evaluate suitability with the reported sample, controls and experimental conditions.
All three the supplier anti-LYVE1 antibodies have WB images. A04027-2 reports a ~70 kDa band and M04027 a ~29 kDa band, versus 35 kDa expected in both captions. A04027-1's MCF-7 caption gives no band size. The images alone do not establish band identity.
Which to pick: For rat samples, M04027 and A04027-1 list rat reactivity; A04027-2 lists human and mouse despite rat tissue lanes in its image. Match the tested sample: A04027-2 includes tissue lysates, M04027 includes human, rat, and mouse cell lysates, and A04027-1 shows MCF-7 lysate.