Design a Western Blot for MLXIPL

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 · Six isoforms are listed. Relative to the canonical sequence, isoform 5 lacks residues 576–852 and replaces 558–575; isoform 6 lacks 176–268 and 816–852. Isoforms 2 and 4 lack 687–705, while 3 and 4 lack 647–648. These sequence differences could affect band position; the supplied record gives no observed positions.

PTM · The supplied UniProt coordinates are phosphoserines 20, 23, 25, 29, 196, 556, 602, 614 and 631, plus phosphothreonine 27. Ser556 is annotated as phosphorylated by AMPK. Check whether your antibody recognizes the relevant region; phosphorylation alone does not establish a visible band shift. UniProt coordinates may differ from antibody or paper numbering.

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 A03145 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 · Quantify matched sample types and keep cytoplasmic and nuclear measurements distinct. MLXIPL can redistribute between these compartments with glucose in hepatocytes, so a change in one fraction alone does not establish a change in total abundance. Report which fraction and glucose condition each measurement represents.

Interpretation · 93.1 kDa is the predicted mass of the canonical 852-residue sequence. No observed band position is supplied. Isoform changes and phosphorylation are documented, but their presence alone does not establish a visible shift or explain any difference from 93.1 kDa.

UniProt annotates phosphorylation of Ser556 by AMPK. If studying AMPK-related conditions, track the same MLXIPL band consistently and interpret a mobility change cautiously: this annotation does not show that phosphorylation at Ser556 creates a resolvable shift. Ser556 uses the supplied UniProt coordinate.

The supplied location note says MLXIPL is mainly cytoplasmic in hepatocytes under low glucose and moves into the nucleus under high glucose. Record glucose conditions and compare matched cytoplasmic and nuclear fractions when interpreting band intensity. The note describes localization, not a demonstrated change in total protein abundance.

Compare bands with the documented isoform changes, especially the large deletions in isoforms 5 and 6. The smaller deletions in isoforms 2–4 and listed phosphorylation sites may also be relevant, but the supplied features do not establish their gel positions. No empirical band positions are available to identify an unexpected band from migration alone.