Design a Western Blot for SLC11A2

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.

Isoforms · UniProt lists isoforms 1–5. Isoform 5 changes the N-terminal residues 1–12; isoforms 3 and 4 have an alternative N terminus; and isoforms 1, 3, and 5 replace residues 544–568. Check which sequence your antibody recognizes before assigning bands to isoforms. These sequence differences do not establish that the isoforms resolve as separate bands.

PTM · UniProt lists N-linked glycosylation at Asn336 and Asn349 and phosphoserine at Ser564 and Ser567, using the supplied canonical sequence coordinates. Isoforms 1, 3, and 5 replace the segment containing Ser564 and Ser567. Check isoform identity before interpreting a phosphorylation-sensitive result; the listed sites alone do not establish a visible band shift.

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.

Transfer · SLC11A2 is annotated as a multipass membrane protein, but the supplied features do not specify a transfer method. Optimize transfer for the approximately 70 kDa apparent band and check both the membrane and post-transfer gel for retained protein before interpreting a weak signal.

Blocking · Standard workflow guidance: follow the A02622-2 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.

Quantitation · Compare samples using the same band assignment and account for isoform coverage by the antibody. Record iron or cobalt exposure because the supplied record links these treatments to SLC11A2 degradation in cortical neurons. Quantify a consistently identified band rather than combining unresolved bands that may represent different forms.

Interpretation · The supplied apparent band is approximately 70 kDa, versus a predicted mass of 62.3 kDa. UniProt lists N-linked glycosylation at Asn336 and Asn349 and five isoforms, but these features alone do not establish the cause of the difference. Compare the band with a molecular weight marker and assess glycosylation and isoform identity when interpreting it.

In cortical neurons, the supplied UniProt record says iron or cobalt exposure promotes interaction with NDFIP1 and NEDD4L, followed by NEDD4L-mediated ubiquitination and proteasome-dependent degradation. Record exposure and sampling time when comparing band intensity; a weaker signal under these conditions could reflect reduced SLC11A2 abundance.

First compare them with the approximately 70 kDa observed band and the 62.3 kDa predicted mass. Then check antibody recognition across the five isoforms, including their alternative termini, and consider the listed glycosylation sites at Asn336 and Asn349. The supplied features suggest possibilities for follow-up, but do not identify any particular unexpected band.