PRB4

PRB4
Identifiers
Aliases	PRB4, Po, proline-rich protein BstNI subfamily 4, proline rich protein BstNI subfamily 4
External IDs	OMIM: 180990; GeneCards: PRB4; OMA:PRB4 - orthologs
Gene location (Human)
Chr.	Chromosome 12 (human)
End	11,310,436 bp
RNA expression pattern
	Top expressed in
	olfactory zone of nasal mucosa; ; epithelium of colon; ; tonsil; ; bone marrow; ; liver; ; urinary bladder; ; skin of abdomen; ; skin of leg; ; blood; ; lymph node;
	n/a
	More reference expression data
	n/a
Gene ontology
Molecular function	molecular function;
Cellular component	extracellular region;
Biological process	biological process;
	Sources:Amigo / QuickGO
Orthologs
	5545
	n/a
	ENSG00000274839; ENSG00000230657
	n/a
	P10163
	n/a
	NM_002723; NM_001261399
	n/a
	n/a
	n/a
	Wikidata
View/Edit Human

Basic salivary proline-rich protein 4 is a protein that in humans is encoded by the PRB4 gene.

The protein encoded by this gene is a proline-rich salivary protein. This gene and five other genes that also encode salivary proline-rich proteins (PRPs), as well as a gene encoding a lacrimal gland PRP, form a PRP gene cluster in the chromosomal 12p13 region.

PRB4 is post-translationally cleaved into three different mature peptides:

Protein N1
Glycosylated protein A
Peptide P-D (also known as proline-rich peptide IB-5)