Podjedinica alfa-3 natrij/kalij-transportirajuče ATPaze je enzim koji je kod ljudi kodiran gen ATP1A3.[5][6]

ATP1A3
Identifikatori
AliasiATP1A3
Vanjski ID-jeviOMIM: 182350 MGI: 88107 HomoloGene: 113729 GeneCards: ATP1A3
Lokacija gena (čovjek)
Hromosom 19 (čovjek)
Hrom.Hromosom 19 (čovjek)[1]
Hromosom 19 (čovjek)
Genomska lokacija za ATP1A3
Genomska lokacija za ATP1A3
Bend19q13.2Početak41,966,582 bp[1]
Kraj41,997,497 bp[1]
Lokacija gena (miš)
Hromosom 7 (miš)
Hrom.Hromosom 7 (miš)[2]
Hromosom 7 (miš)
Genomska lokacija za ATP1A3
Genomska lokacija za ATP1A3
Bend7 A3|7 13.73 cMPočetak24,677,592 bp[2]
Kraj24,705,383 bp[2]
Obrazac RNK ekspresije
Više referentnih podataka o ekspresiji
Ontologija gena
Molekularna funkcija steroid hormone binding
nucleotide binding
chaperone binding
P-type sodium:potassium-exchanging transporter activity
vezivanje iona metala
P-type sodium:potassium-exchanging transporter activity involved in regulation of cardiac muscle cell membrane potential
heparan sulfate proteoglycan binding
D1 dopamine receptor binding
hydrolase activity
ATP binding
amyloid-beta binding
P-type potassium transmembrane transporter activity
ion antiporter activity involved in regulation of presynaptic membrane potential
Ćelijska komponenta citoplazma
integral component of membrane
dendritic spine neck
extracellular vesicle
Golđijev aparat
membrana
myelin sheath
ćelijska membrana
sinapsa
sodium:potassium-exchanging ATPase complex
Akson
dendritic spine head
Endoplazmatski retikulum
Sarkolema
jedro
neuronal cell body membrane
soma
Biološki proces visual learning
cellular response to steroid hormone stimulus
regulation of cardiac conduction
cardiac muscle contraction
sodium ion transport
cellular sodium ion homeostasis
adult locomotory behavior
sodium ion export across plasma membrane
cell communication by electrical coupling involved in cardiac conduction
response to glycoside
ion transport
Memorija
GO:0097301 cellular potassium ion homeostasis
potassium ion transport
ion transmembrane transport
ionotropic glutamate receptor signaling pathway
GO:0015915 transport
regulation of cardiac muscle cell membrane potential
establishment or maintenance of transmembrane electrochemical gradient
cerebral cortex development
cellular response to retinoic acid
cellular response to thyroid hormone stimulus
regulation of resting membrane potential
regulation of presynaptic membrane potential
cellular response to amyloid-beta
neuron projection maintenance
potassium ion import across plasma membrane
Izvori:Amigo / QuickGO
Ortolozi
VrsteČovjekMiš
Entrez
Ensembl
UniProt
RefSeq (mRNK)

NM_001256213
NM_001256214
NM_152296

NM_001290469
NM_144921
NM_001374627

RefSeq (bjelančevina)

NP_001243142
NP_001243143
NP_689509

NP_001277398
NP_001361556

Lokacija (UCSC)Chr 19: 41.97 – 42 MbChr 7: 24.68 – 24.71 Mb
PubMed pretraga[3][4]
Wikipodaci
Pogledaj/uredi – čovjekPogledaj/uredi – miš

Aminokisekinska sekvenca

Simboli
1020304050
MGDKKDDKDSPKKNKGKERRDLDDLKKEVAMTEHKMSVEEVCRKYNTDCV
QGLTHSKAQEILARDGPNALTPPPTTPEWVKFCRQLFGGFSILLWIGAIL
CFLAYGIQAGTEDDPSGDNLYLGIVLAAVVIITGCFSYYQEAKSSKIMES
FKNMVPQQALVIREGEKMQVNAEEVVVGDLVEIKGGDRVPADLRIISAHG
CKVDNSSLTGESEPQTRSPDCTHDNPLETRNITFFSTNCVEGTARGVVVA
TGDRTVMGRIATLASGLEVGKTPIAIEIEHFIQLITGVAVFLGVSFFILS
LILGYTWLEAVIFLIGIIVANVPEGLLATVTVCLTLTAKRMARKNCLVKN
LEAVETLGSTSTICSDKTGTLTQNRMTVAHMWFDNQIHEADTTEDQSGTS
FDKSSHTWVALSHIAGLCNRAVFKGGQDNIPVLKRDVAGDASESALLKCI
ELSSGSVKLMRERNKKVAEIPFNSTNKYQLSIHETEDPNDNRYLLVMKGA
PERILDRCSTILLQGKEQPLDEEMKEAFQNAYLELGGLGERVLGFCHYYL
PEEQFPKGFAFDCDDVNFTTDNLCFVGLMSMIDPPRAAVPDAVGKCRSAG
IKVIMVTGDHPITAKAIAKGVGIISEGNETVEDIAARLNIPVSQVNPRDA
KACVIHGTDLKDFTSEQIDEILQNHTEIVFARTSPQQKLIIVEGCQRQGA
IVAVTGDGVNDSPALKKADIGVAMGIAGSDVSKQAADMILLDDNFASIVT
GVEEGRLIFDNLKKSIAYTLTSNIPEITPFLLFIMANIPLPLGTITILCI
DLGTDMVPAISLAYEAAESDIMKRQPRNPRTDKLVNERLISMAYGQIGMI
QALGGFFSYFVILAENGFLPGNLVGIRLNWDDRTVNDLEDSYGQQWTYEQ
RKVVEFTCHTAFFVSIVVVQWADLIICKTRRNSVFQQGMKNKILIFGLFE
ETALAAFLSYCPGMDVALRMYPLKPSWWFCAFPYSFLIFVYDEIRKLILR
RNPGGWVEKETYY

Funkcija

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Protein koji je kodiran ovim genom pripada porodici P-tipa kationskog transporta ATPaza i potporodice Na+/K+-ATPaza. Na+/K+ -ATPaza je integralni membranski protein, odgovoran za uspostavljanje i održavanje elektrohemijskog gradijenta Na i K iona preko plazmatske membrane. Ovi gradijenti su neophodni za osmoregulaciju, za natrijev – pregnuti transport različitih organskih i neorganskih molekula, te za električnu ekscitabilnost živaca i mišića. Ovaj enzim sastoji se od dvije podjedinice, velike katalitske podjedinice (alfa) i manje glikoproteinske podjedinice (beta). Katalitska podjedinica Na+ /K+ -ATPaza kodirana je sa više gena. Ovaj gen kodira podjedinicu alfa-3.[6]

Klinički značaj

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Poznato je da varijante gena ATP1A3 koje uzrokuju bolest izazivaju razne poremećaje pokreta i epilepsije.[7] Poznata pridružena stanja uključuju razne sindrome:

1) Naizmjenična hemiplegija djetinjstva (AHC)

2) Brzonastaljuća distonija-parkinsonizam (RDP, poznat i kao DYT12)

3) Cerebelarne ataksija, arefleksija, pes cavus, optička atrofija i senzorineuralni gubitak sluha (CAPOS /CAOS sindrom)

4) Razvojna i epilepsijska encefalopatija

5) Paroksizamska slabost i encefalopatija izazvana vrućicom (FIPWE)

6) Ponavljajuće epizode cerebralne ataksije (RECA)

7) Vrlo rana shizofrenija.[8]

Kod miševa su mutacije ovog gena povezane sa epilepsijom. Manipuliranjem ovog gena u potomstvu takvih miševa epilepsija se može izbjeći.[9]

Reference

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  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000105409 - Ensembl, maj 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000040907 - Ensembl, maj 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. ^ Brashear A, Dobyns WB, de Carvalho Aguiar P, Borg M, Frijns CJ, Gollamudi S, Green A, Guimaraes J, Haake BC, Klein C, Linazasoro G, Münchau A, Raymond D, Riley D, Saunders-Pullman R, Tijssen MA, Webb D, Zaremba J, Bressman SB, Ozelius LJ (Mar 2007). "The phenotypic spectrum of rapid-onset dystonia-parkinsonism (RDP) and mutations in the ATP1A3 gene". Brain. 130 (Pt 3): 828–35. doi:10.1093/brain/awl340. PMID 17282997.
  6. ^ a b "Entrez Gene: ATP1A3 ATPase, Na+/K+ transporting, alpha 3 polypeptide".
  7. ^ Papandreou A, Danti FR, Spaull R, Leuzzi V, Mctague A, Kurian MA (februar 2020). "The expanding spectrum of movement disorders in genetic epilepsies". Developmental Medicine and Child Neurology. 62 (2): 178–191. doi:10.1111/dmcn.14407. PMID 31784983. S2CID 208498567.
  8. ^ Smedemark-Margulies N, Brownstein CA, Vargas S, Tembulkar SK, Towne MC, Shi J, Gonzalez-Cuevas E, Liu KX, Bilguvar K, Kleiman RJ, Han MJ, Torres A, Berry GT, Yu TW, Beggs AH, Agrawal PB, Gonzalez-Heydrich J (septembar 2016). "A novel de novo mutation in ATP1A3 and childhood-onset schizophrenia". Cold Spring Harb Mol Case Stud. 2 (5): a001008. doi:10.1101/mcs.a001008. PMC 5002930. PMID 27626066.
  9. ^ Clapcote SJ, Duffy S, Xie G, Kirshenbaum G, Bechard AR, Rodacker Schack V, Petersen J, Sinai L, Saab BJ, Lerch JP, Minassian BA, Ackerley CA, Sled JG, Cortez MA, Henderson JT, Vilsen B, Roder JC (august 2009). "Mutation I810N in the alpha3 isoform of Na+,K+-ATPase causes impairments in the sodium pump and hyperexcitability in the CNS". Proc. Natl. Acad. Sci. U.S.A. 106 (33): 14085–90. Bibcode:2009PNAS..10614085C. doi:10.1073/pnas.0904817106. PMC 2729024. PMID 19666602.

Dopunska literatura

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Vanjski linkovi

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Šablon:ATPaze