HISN5B Antibody

Definition and Target

HISN5B Antibody is a polyclonal antibody targeting the HISN5B protein, a histidine biosynthesis enzyme in Arabidopsis thaliana. Histidine biosynthesis is critical for plant growth and development, and HISN5B plays a role in catalyzing specific steps of this pathway. The antibody is cataloged under CSB-PA517804XA01DOA and is available in 2 ml or 0.1 ml volumes .

Applications and Validation

While direct validation data for HISN5B antibodies are not publicly available in the provided sources, general antibody validation workflows can be inferred from similar research:

Key Applications in Plant Research:

• Western blot: Detection of HISN5B expression in Arabidopsis tissue lysates .

• Immunohistochemistry (IHC): Localization of HISN5B in plant cell compartments .

• Enzyme-linked immunosorbent assay (ELISA): Quantification of HISN5B protein levels under varying physiological conditions .

Validation Standards:

• Specificity: Likely validated using knockout (KO) Arabidopsis lines to confirm absence of cross-reactivity .

• Reproducibility: Consistent lot-to-lot performance, as demonstrated for other His-tag antibodies (e.g., GenScript’s THE™ His Tag Antibody) .

Comparative Analysis of HISN5B Antibody

4.1. Role of HISN5B in Plant Biology

HISN5B is part of the histidine biosynthesis pathway, which is essential for:

• Nitrogen metabolism

• Defense response signaling

• Metal ion homeostasis .

4.2. Challenges in Antibody Characterization

• Polyreactivity: Broadly reactive antibodies (e.g., influenza HA stalk antibodies) often exhibit autoreactivity , though this has not been reported for HISN5B.

• Validation Depth: High-throughput initiatives like NeuroMab screen >1,000 clones for specificity , but similar rigor is not documented for HISN5B.

Future Directions

• Functional Studies: Use HISN5B antibody to explore histidine biosynthesis mutants in Arabidopsis.

• Cross-Species Analysis: Test reactivity in related plant species (e.g., Brassica napus).

• Mechanistic Insights: Combine with CRISPR-edited lines to dissect HISN5B’s role in stress responses.