CHGB

CHGB

Target · Secretory granule protein

CHGB Chromogranin B · Secretogranin-1

CHGB (chromogranin B), also known as secretogranin-1, SgI and SCG1, is a neuroendocrine secretory granule protein that may act as a precursor for biologically active peptides. It belongs to the granin group and is abundant in peptidergic endocrine cells and neurons. Browse Assay Genie's current range of CHGB research reagents below, or read on for the biology behind the target.

Secreted proteinGranin family memberTyrosine-sulfated precursor
677 aa
Protein length
~78 kDa
Molecular weight
20p12.3
Gene locus
Granin family
Protein family
Target information

What is CHGB (chromogranin B)?

CHGB is a neuroendocrine secretory granule protein. According to UniProt annotation, it may be the precursor for other biologically active peptides, and the NCBI Gene summary similarly describes it as a protein that may serve as a precursor for regulatory peptides. Its recognised role is therefore tied to the secretory pathway of neuroendocrine cells, where it is found in secretory granules and is released from the cell.

The CHGB gene encodes a tyrosine-sulfated secretory protein that is abundant in peptidergic endocrine cells and neurons. This distribution makes the CHGB protein a useful reference point for researchers studying peptide-secreting cell types. The protein belongs to the chromogranin/secretogranin family, and HGNC classifies the gene within the granins group. The mouse and rat orthologues are both named Chgb.

The protein has been known by several names. HGNC records the approved name as chromogranin B, with the previous name secretogranin 1 and the aliases SgI and SCG1. UniProt lists the recommended protein name as secretogranin-1. These synonyms are worth searching when reviewing the literature on the CHGB gene, since older papers often use the secretogranin designations.

Neuroendocrine biology

CHGB is a secretory granule protein of neuroendocrine cells, so it is relevant to studies of how these cells package and release their products.

Regulatory peptide research

CHGB may be a precursor for biologically active peptides, making it a subject of interest in peptide processing and signalling.

Peptidergic neuron studies

The protein is abundant in neurons and peptidergic endocrine cells, supporting its use in work on these cell populations.

Granin family comparisons

As a member of the chromogranin/secretogranin family, CHGB provides a point of comparison with other granins in the secretory pathway.

Background

CHGB frequently asked questions

What does CHGB do?

CHGB is a neuroendocrine secretory granule protein. UniProt states that it may be the precursor for other biologically active peptides, and NCBI describes it as a possible precursor for regulatory peptides. It is secreted and is abundant in peptidergic endocrine cells and neurons.

What other names does CHGB go by?

CHGB stands for chromogranin B. Its aliases are SgI and SCG1, its previous HGNC name is secretogranin 1, and UniProt uses the protein name secretogranin-1. All of these refer to the same gene and protein product.

Is CHGB conserved in other species?

Yes. The mouse and rat orthologues are both named Chgb. The protein belongs to the chromogranin/secretogranin family, and HGNC places the gene in the granins group. Check the datasheet of any product for its validated reactivity.

Explore

Related targets

Other granins and neuroendocrine secretory pathway proteins with products at Assay Genie.

Gene and protein annotations from HGNC, NCBI Gene and UniProt P05060; product specifications from Assay Genie datasheets.

CHGB Product listing