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General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.
Gene namei
Official gene symbol, which is typically a short form of the gene name, according to HGNC.
Potassium inwardly rectifying channel subfamily J member 13
Protein classi
Assigned HPA protein class(es) for the encoded protein(s).
Disease related genes Human disease related genes Potential drug targets Transporters Voltage-gated ion channels
Predicted locationi
All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.
Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.
Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).
The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.
Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.
Chromosome
2
Cytoband
q37.1
Chromosome location (bp)
232765802 - 232776565
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
Inward rectifier potassium channels are characterized by a greater tendency to allow potassium to flow into the cell rather than out of it. Their voltage dependence is regulated by the concentration of extracellular potassium; as external potassium is raised, the voltage range of the channel opening shifts to more positive voltages. The inward rectification is mainly due to the blockage of outward current by internal magnesium. KCNJ13 has a very low single channel conductance, low sensitivity to block by external barium and cesium, and no dependence of its inward rectification properties on the internal blocking particle magnesium....show less
Molecular function (UniProt)i
Keywords assigned by UniProt to proteins due to their particular molecular function.
Ion channel, Voltage-gated channel
Biological process (UniProt)i
Keywords assigned by UniProt to proteins because they are involved in a particular biological process.
Ion transport, Potassium transport, Transport
Ligand (UniProt)i
Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.
Potassium
Gene summary (Entrez)i
Useful information about the gene from Entrez
This gene encodes a member of the inwardly rectifying potassium channel family of proteins. Members of this family form ion channel pores that allow potassium ions to pass into a cell. The encoded protein belongs to a subfamily of low signal channel conductance proteins that have a low dependence on potassium concentration. Mutations in this gene are associated with snowflake vitreoretinal degeneration. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Feb 2010]...show less
PROTEIN INFORMATIONi
The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.
The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.
The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Transporters Transporter channels and pores Voltage-gated ion channels Inwardly Rectifying Potassium Channels Predicted membrane proteins Prediction method-based Membrane proteins predicted by MDM MEMSAT3 predicted membrane proteins MEMSAT-SVM predicted membrane proteins Phobius predicted membrane proteins SCAMPI predicted membrane proteins SPOCTOPUS predicted membrane proteins THUMBUP predicted membrane proteins TMHMM predicted membrane proteins # TM segments-based 2TM proteins predicted by MDM Disease related genes Potential drug targets Human disease related genes Nervous system diseases Eye disease Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) DeepTMHMM predicted membrane proteins
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GO:0005242[inward rectifier potassium channel activity] GO:0005244[voltage-gated ion channel activity] GO:0005886[plasma membrane] GO:0006811[ion transport] GO:0006813[potassium ion transport] GO:0016020[membrane] GO:0016021[integral component of membrane] GO:0034765[regulation of ion transmembrane transport] GO:1990573[potassium ion import across plasma membrane]
Transporters Transporter channels and pores Voltage-gated ion channels Inwardly Rectifying Potassium Channels Predicted membrane proteins Prediction method-based Membrane proteins predicted by MDM MEMSAT3 predicted membrane proteins MEMSAT-SVM predicted membrane proteins Phobius predicted membrane proteins SCAMPI predicted membrane proteins SPOCTOPUS predicted membrane proteins THUMBUP predicted membrane proteins TMHMM predicted membrane proteins # TM segments-based 1TM proteins predicted by MDM Disease related genes Potential drug targets Human disease related genes Nervous system diseases Eye disease Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) DeepTMHMM predicted membrane proteins
Show all
GO:0005242[inward rectifier potassium channel activity] GO:0005244[voltage-gated ion channel activity] GO:0005886[plasma membrane] GO:0006811[ion transport] GO:0006813[potassium ion transport] GO:0016020[membrane] GO:0016021[integral component of membrane] GO:0034765[regulation of ion transmembrane transport] GO:1990573[potassium ion import across plasma membrane]
Transporters Transporter channels and pores Voltage-gated ion channels Inwardly Rectifying Potassium Channels Predicted membrane proteins Prediction method-based Membrane proteins predicted by MDM MEMSAT3 predicted membrane proteins MEMSAT-SVM predicted membrane proteins Phobius predicted membrane proteins SCAMPI predicted membrane proteins SPOCTOPUS predicted membrane proteins THUMBUP predicted membrane proteins TMHMM predicted membrane proteins # TM segments-based 2TM proteins predicted by MDM Disease related genes Potential drug targets Human disease related genes Nervous system diseases Eye disease Mapped to neXtProt neXtProt - Evidence at protein level DeepTMHMM predicted membrane proteins
Show all
GO:0005242[inward rectifier potassium channel activity] GO:0005244[voltage-gated ion channel activity] GO:0005886[plasma membrane] GO:0006811[ion transport] GO:0006813[potassium ion transport] GO:0016020[membrane] GO:0016021[integral component of membrane] GO:0034765[regulation of ion transmembrane transport] GO:1990573[potassium ion import across plasma membrane]
The Human Protein Atlas project is funded
