OR1B1

Protein identityUniProt · HPA

UniProt accession

Q8NGR6

Gene

OR1B1

Ensembl

ENSG00000280094

Chromosome

9

Canonical length

317 aa

Protein class

G-protein coupled receptors, Predicted membrane proteins

OverviewNCBI Gene

Olfactory receptors interact with odorant molecules in the nose, to initiate a neuronal response that triggers the perception of a smell. The olfactory receptor proteins are members of a large family of G-protein-coupled receptors (GPCR) arising from single coding-exon genes. Olfactory receptors share a 7-transmembrane domain structure with many neurotransmitter and hormone receptors and are responsible for the recognition and G protein-mediated transduction of odorant signals. The olfactory receptor gene family is the largest in the genome. This olfactory receptor gene is a segregating pseudogene, where some individuals have an allele that encodes a functional olfactory receptor, while other individuals have an allele encoding a protein that is predicted to be non-functional. [provided by RefSeq, Jun 2015]

Canonical amino-acid sequenceUniProt

317 residues, UniProt reviewed canonical sequence.

>Q8NGR6|OR1B1
     1  MSFAPNASHS PVFLLLGFSR ANISYTLLFF LFLAIYLTTI LGNVTLVLLI SWDSRLHSPM
    61  YYLLRGLSVI DMGLSTVTLP QLLAHLVSHY PTIPAARCLA QFFFFYAFGV TDTLVIAVMA
   121  LDRYVAICDP LHYALVMNHQ RCACLLALSW VVSILHTMLR VGLVLPLCWT GDAGGNVNLP
   181  HFFCDHRPLL RASCSDIHSN ELAIFFEGGF LMLGPCALIV LSYVRIGAAI LRLPSAAGRR
   241  RAVSTCGSHL TMVGFLYGTI ICVYFQPPFQ NSQYQDMVAS VMYTAITPLA NPFVYSLHNK
   301  DVKGALCRLL EWVKVDP

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against OR1B1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability

Cell surface

Secreted

No

Transmembrane segments

7

Mean surface accessibility (rSASA)

0.28

Highest tissue expression

0.2 nTPM

Expression across tissuesHPA

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)

1.8

gnomAD pLI

0

gnomAD missense Z

0.04

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

• signal transduction

Molecular functions

• G protein-coupled receptor activity
• olfactory receptor activity

Cellular components

• plasma membrane

Protein domainsUniProt · Pfam · InterPro

• G protein-coupled receptor, rhodopsin-like
• Olfactory receptor
• GPCR, rhodopsin-like, 7TM
• Olfactory receptor

KeywordsUniProt

• Cell membrane
• Disulfide bond
• G-protein coupled receptor
• Glycoprotein
• Membrane
• Olfaction
• Receptor
• Sensory transduction
• Transducer
• Transmembrane
• Transmembrane helix