OBP2A

Odorant binding protein 2A
Available structures PDB Ortholog search: PDBe, RCSB List of PDB id codes 4RUN
Identifiers
Symbols	OBP2A ; LCN13; OBP; OBP2C; OBPIIa; hOBPIIa
External IDs	OMIM: 164320 MGI: 2387617 HomoloGene: 135821 GeneCards: OBP2A Gene
Gene ontology Molecular function • odorant binding Cellular component • cellular_component • extracellular region Biological process • transport • sensory perception of chemical stimulus • sensory perception of smell • response to stimulus Sources: Amigo / QuickGO
RNA expression pattern
File:PBB GE OBP2A 220848 x at tn.png
File:PBB GE OBP2A 220959 s at tn.png
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	29991	383678
Ensembl	ENSG00000122136	ENSMUSG00000079539
UniProt	Q9NY56	Q8K1H9
RefSeq (mRNA)	NM_001293189	NM_001099301
RefSeq (protein)	NP_001280118	NP_001092771
Location (UCSC)	Chr 9: 135.55 – 135.55 Mb	Chr 2: 25.74 – 25.74 Mb
PubMed search	[1]	[2]

Odorant-binding protein 2a is a protein that in humans is encoded by the OBP2A gene.

This gene encodes a small extracellular protein belonging to the lipocalin superfamily. The protein is thought to transport small, hydrophobic, volatile molecules or odorants through the nasal mucus to olfactory receptors, and may also function as a scavenger of highly concentrated or toxic odors. The protein is expressed as a monomer in the nasal mucus, and can bind diverse types of odorants with a higher affinity for aldehydes and fatty acids. This gene and a highly similar family member are located in a cluster of lipocalin genes on chromosome 9. Alternatively spliced transcript variants have been described, but their biological validity has not been determined.