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TPCN2

From Wikipedia, the free encyclopedia
Protein-coding gene in the species Homo sapiens

TPCN2
Identifiers
AliasesTPCN2, SHEP10, TPC2, two pore segment channel 2
External IDsOMIM:612163;MGI:2385297;HomoloGene:16375;GeneCards:TPCN2;OMA:TPCN2 - orthologs
Gene location (Human)
Chromosome 11 (human)
Chr.Chromosome 11 (human)[1]
Chromosome 11 (human)
Genomic location for TPCN2
Genomic location for TPCN2
Band11q13.3Start69,048,932bp[1]
End69,136,316bp[1]
Gene location (Mouse)
Chromosome 7 (mouse)
Chr.Chromosome 7 (mouse)[2]
Chromosome 7 (mouse)
Genomic location for TPCN2
Genomic location for TPCN2
Band7|7 F5Start144,740,261bp[2]
End144,837,748bp[2]
RNA expression pattern
Bgee
HumanMouse (ortholog)
Top expressed in
  • pancreatic ductal cell

  • mucosa of ileum

  • gastric mucosa

  • muscle layer of sigmoid colon

  • body of uterus

  • monocyte

  • right hemisphere of cerebellum

  • tibialis anterior muscle

  • left uterine tube

  • right lobe of liver
Top expressed in
  • granulocyte

  • inner renal medulla

  • stroma of bone marrow

  • lip

  • ventricular zone

  • spermatid

  • yolk sac

  • embryo

  • blastocyst

  • embryo
More reference expression data
BioGPS
n/a
Gene ontology
Molecular function
Cellular component
Biological process
Sources:Amigo /QuickGO
Orthologs
SpeciesHumanMouse
Entrez

219931

233979

Ensembl

ENSG00000162341

ENSMUSG00000048677

UniProt

Q8NHX9

Q8BWC0

RefSeq (mRNA)

NM_139075

NM_146206

RefSeq (protein)

NP_620714

NP_666318

Location (UCSC)Chr 11: 69.05 – 69.14 MbChr 7: 144.74 – 144.84 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Two pore segment channel 2 (TPC2) is aprotein which in humans is encoded by theTPCN2gene.[5] TPC2 is anion channel, however, in contrast to othercalcium andsodium channels which have four homologous domains, each containing 6 transmembrane segments (S1 to S6), TPCN1 only contains two domain (each containing segments S1 to S6).[6]

Structure

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TPC2 is homologous to TPC1, the best characterized member of the TPC family. The structure of a TPC1ortholog fromArabidopsis thaliana has been solved by two laboratories.[7][8] The structures were solved usingX-ray crystallography and contained the fold of avoltage-gated ion channel andEF hands.

Filoviral infections

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Genetic knockout and pharmacological inhibition experiments demonstrate that thetwo-pore channels,TPC1 andTPC2, are required for infection by FilovirusesEbola andMarburg in mice.[9]

See also

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References

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  1. ^abcGRCh38: Ensembl release 89: ENSG00000162341Ensembl, May 2017
  2. ^abcGRCm38: Ensembl release 89: ENSMUSG00000048677Ensembl, May 2017
  3. ^"Human PubMed Reference:".National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^"Mouse PubMed Reference:".National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^"Entrez Gene: two pore segment channel 2".
  6. ^Clapham DE, Garbers DL (December 2005). "International Union of Pharmacology. L. Nomenclature and structure-function relationships of CatSper and two-pore channels".Pharmacological Reviews.57 (4):451–4.doi:10.1124/pr.57.4.7.PMID 16382101.S2CID 35096827.
  7. ^Guo J, Zeng W, Chen Q, Lee C, Chen L, Yang Y, Cang C, Ren D, Jiang Y (March 2016)."Structure of the voltage-gated two-pore channel TPC1 from Arabidopsis thaliana".Nature.531 (7593):196–201.Bibcode:2016Natur.531..196G.doi:10.1038/nature16446.PMC 4841471.PMID 26689363.
  8. ^Kintzer AF, Stroud RM (March 2016)."Structure, inhibition and regulation of two-pore channel TPC1 from Arabidopsis thaliana".Nature.531 (7593):258–62.Bibcode:2016Natur.531..258K.doi:10.1038/nature17194.PMC 4863712.PMID 26961658.
  9. ^Sakurai Y, Kolokoltsov AA, Chen CC, Tidwell MW, Bauta WE, Klugbauer N, Grimm C, Wahl-Schott C, Biel M, Davey RA (February 2015)."Ebola virus. Two-pore channels control Ebola virus host cell entry and are drug targets for disease treatment".Science.347 (6225):995–8.doi:10.1126/science.1258758.PMC 4550587.PMID 25722412.

Further reading

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External links

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Ligand-gated
Voltage-gated
Constitutively active
Proton-gated
Voltage-gated
Calcium-activated
Inward-rectifier
Tandem pore domain
Voltage-gated
Miscellaneous
Cl:Chloride channel
H+:Proton channel
M+:CNG cation channel
M+:TRP cation channel
H2O (+solutes):Porin
Cytoplasm:Gap junction
By gating mechanism
Ion channel class
see alsodisorders
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