Human Gene OR4K2 (ENST00000298642.2) from GENCODE V44
  Description: Odorant receptor (Potential). (from UniProt Q8NGD2)
RefSeq Summary (NM_001005501): 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. The nomenclature assigned to the olfactory receptor genes and proteins for this organism is independent of other organisms. [provided by RefSeq, Jul 2008]. ##RefSeq-Attributes-START## RefSeq Select criteria :: based on single protein-coding transcript ##RefSeq-Attributes-END##
Gencode Transcript: ENST00000298642.2
Gencode Gene: ENSG00000165762.3
Transcript (Including UTRs)
   Position: hg38 chr14:19,876,232-19,877,309 Size: 1,078 Total Exon Count: 1 Strand: +
Coding Region
   Position: hg38 chr14:19,876,268-19,877,212 Size: 945 Coding Exon Count: 1 

Page IndexSequence and LinksUniProtKB CommentsPrimersCTDRNA-Seq Expression
Microarray ExpressionRNA StructureProtein StructureOther SpeciesGO AnnotationsmRNA Descriptions
PathwaysOther NamesMethods
Data last updated at UCSC: 2023-08-18 00:09:47

-  Sequence and Links to Tools and Databases
 
Genomic Sequence (chr14:19,876,232-19,877,309)mRNA (may differ from genome)Protein (314 aa)
Gene SorterGenome BrowserOther Species FASTAGene interactionsTable SchemaAlphaFold
EnsemblExonPrimerGencodeGeneCardsHGNCHPRD
LynxMalacardsMGIneXtProtPubMedReactome
UniProtKBWikipedia

-  Comments and Description Text from UniProtKB
  ID: OR4K2_HUMAN
DESCRIPTION: RecName: Full=Olfactory receptor 4K2; AltName: Full=Olfactory receptor OR14-15;
FUNCTION: Odorant receptor (Potential).
SUBCELLULAR LOCATION: Cell membrane; Multi-pass membrane protein.
SIMILARITY: Belongs to the G-protein coupled receptor 1 family.
WEB RESOURCE: Name=Human Olfactory Receptor Data Exploratorium (HORDE); URL="http://bip.weizmann.ac.il/cgi-bin/HORDE/showGene.pl?key=symbol&value=OR4K2";

-  Primer design for this transcript
 

Primer3Plus can design qPCR Primers that straddle exon-exon-junctions, which amplify only cDNA, not genomic DNA.
Click here to load the transcript sequence and exon structure into Primer3Plus

Exonprimer can design one pair of Sanger sequencing primers around every exon, located in non-genic sequence.
Click here to open Exonprimer with this transcript

To design primers for a non-coding sequence, zoom to a region of interest and select from the drop-down menu: View > In External Tools > Primer3


-  Comparative Toxicogenomics Database (CTD)
  The following chemicals interact with this gene

-  RNA-Seq Expression Data from GTEx (53 Tissues, 570 Donors)
  Highest median expression: 0.00 RPKM in Adipose - Subcutaneous
Total median expression: 0.00 RPKM



View in GTEx track of Genome Browser    View at GTEx portal     View GTEx Body Map

+  Microarray Expression Data
  Press "+" in the title bar above to open this section.

-  mRNA Secondary Structure of 3' and 5' UTRs
 
RegionFold EnergyBasesEnergy/Base
Display As
5' UTR -7.8036-0.217 Picture PostScript Text
3' UTR -23.1097-0.238 Picture PostScript Text

The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.

-  Protein Domain and Structure Information
  InterPro Domains: Graphical view of domain structure
IPR000276 - 7TM_GPCR_Rhodpsn
IPR017452 - GPCR_Rhodpsn_supfam
IPR000725 - Olfact_rcpt

ModBase Predicted Comparative 3D Structure on Q8NGD2
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The pictures above may be empty if there is no ModBase structure for the protein. The ModBase structure frequently covers just a fragment of the protein. You may be asked to log onto ModBase the first time you click on the pictures. It is simplest after logging in to just click on the picture again to get to the specific info on that model.

-  Orthologous Genes in Other Species
  Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
MouseRatZebrafishD. melanogasterC. elegansS. cerevisiae
Genome BrowserGenome BrowserNo orthologNo orthologNo orthologNo ortholog
Gene Details     
Gene Sorter     
MGIRGD    
Protein SequenceProtein Sequence    
AlignmentAlignment    

-  Gene Ontology (GO) Annotations with Structured Vocabulary
  Molecular Function:
GO:0004871 signal transducer activity
GO:0004888 transmembrane signaling receptor activity
GO:0004930 G-protein coupled receptor activity
GO:0004984 olfactory receptor activity

Biological Process:
GO:0007165 signal transduction
GO:0007186 G-protein coupled receptor signaling pathway
GO:0007608 sensory perception of smell
GO:0050896 response to stimulus
GO:0050907 detection of chemical stimulus involved in sensory perception
GO:0050911 detection of chemical stimulus involved in sensory perception of smell

Cellular Component:
GO:0005886 plasma membrane
GO:0016020 membrane
GO:0016021 integral component of membrane


-  Descriptions from all associated GenBank mRNAs
  BC136941 - Homo sapiens olfactory receptor, family 4, subfamily K, member 2, mRNA (cDNA clone MGC:168556 IMAGE:9020933), complete cds.
BC136942 - Homo sapiens olfactory receptor, family 4, subfamily K, member 2, mRNA (cDNA clone MGC:168557 IMAGE:9020934), complete cds.
KJ905102 - Synthetic construct Homo sapiens clone ccsbBroadEn_14496 OR4K2 gene, encodes complete protein.

-  Biochemical and Signaling Pathways
  KEGG - Kyoto Encyclopedia of Genes and Genomes
hsa04740 - Olfactory transduction

Reactome (by CSHL, EBI, and GO)

Protein Q8NGD2 (Reactome details) participates in the following event(s):

R-HSA-381750 Olfactory Receptor - G Protein olfactory trimer complex formation
R-HSA-381753 Olfactory Signaling Pathway
R-HSA-418555 G alpha (s) signalling events
R-HSA-388396 GPCR downstream signalling
R-HSA-372790 Signaling by GPCR
R-HSA-162582 Signal Transduction

-  Other Names for This Gene
  Alternate Gene Symbols: B2RNK8, BC136941, ENST00000298642.1, OR4K2_HUMAN, Q6IFA5, Q8NGD2, uc001vwh.1, uc001vwh.2
UCSC ID: ENST00000298642.2
RefSeq Accession: NM_001005501
Protein: Q8NGD2 (aka OR4K2_HUMAN or O4K2_HUMAN)
CCDS: CCDS32023.1

-  Methods, Credits, and Use Restrictions
  Click here for details on how this gene model was made and data restrictions if any.