Design a Western Blot for ZYX

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 and 2. Isoform 2 lacks residues 1–157 of the canonical sequence, so its sequence is shorter. Check which isoform your antibody recognizes before interpreting a second band; the supplied features do not establish either isoform’s apparent migration.

An epitope within canonical residues 1–157 is absent from isoform 2. An antibody against a retained region may recognize both isoforms. Check the antibody’s stated epitope when comparing bands.

PTM · UniProt lists phosphoserine at 116, 142, 143, 169, 170, 259, 267, 281, 288, 308 and 344, and phosphothreonine at 179, 270 and 274. These are canonical UniProt coordinates; isoform 2 lacks residues 1–157. Site annotation alone does not establish a visible shift.

UniProt lists N-acetylalanine at 2, asymmetric dimethylarginine at 253, and N6-acetyllysine at 265, 272 and 279. These are canonical UniProt coordinates; position 2 is absent from isoform 2. Do not assign an unexpected band to a modification solely because its site is annotated.

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 · 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.

Blocking · Standard workflow guidance: follow the M02365 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 · Standard workflow guidance: quantify only a validated target band within the linear exposure range. Use consistent sample preparation and loading, retain biological replicates, and avoid interpreting saturation or loading differences as regulation.

Interpretation · 61.3 kDa is the predicted mass; approximately 78 kDa is the reported apparent band. ZYX has multiple annotated modifications, but their presence alone does not explain the difference. Identify the band using an appropriate ZYX control before assigning its cause.

ZYX is annotated in the cytoplasm, cytoskeleton, focal adhesions and nucleus. It enters the nucleus in the presence of HESX1. When comparing fractions or HESX1 conditions, consider redistribution before interpreting a changed band intensity as a change in total ZYX.

Compare the same identified ZYX band across consistently prepared samples. Because ZYX has two isoforms and can occupy different cellular compartments, keep the measured isoform and sample fraction consistent. A change in one fraction’s signal alone does not establish a change in total ZYX.

First compare them with the approximately 78 kDa apparent band and check antibody recognition of both isoforms. Isoform 2 lacks canonical residues 1–157, and ZYX has annotated modifications, but neither feature alone identifies an unexpected band or proves a visible shift.