ATP2B4
Plazmamembranska kalcij-transportirajuća ATPaza 4 jest enzim koji je kod ljudi kodiran genom ATP2B4 sa hromosoma 1.[5][6]
Aminokiselinska sekvenca
[uredi | uredi izvor]Dužina polipeptidnog lanca je 1.241 aminokiselina, a molekulska težina 137.920 Da.[7]
10 | 20 | 30 | 40 | 50 | ||||
---|---|---|---|---|---|---|---|---|
MTNPSDRVLP | ANSMAESREG | DFGCTVMELR | KLMELRSRDA | LTQINVHYGG | ||||
VQNLCSRLKT | SPVEGLSGNP | ADLEKRRQVF | GHNVIPPKKP | KTFLELVWEA | ||||
LQDVTLIILE | IAAIISLVLS | FYRPAGEENE | LCGQVATTPE | DENEAQAGWI | ||||
EGAAILFSVI | IVVLVTAFND | WSKEKQFRGL | QCRIEQEQKF | SIIRNGQLIQ | ||||
LPVAEIVVGD | IAQVKYGDLL | PADGILIQGN | DLKIDESSLT | GESDHVKKSL | ||||
DKDPMLLSGT | HVMEGSGRMV | VTAVGVNSQT | GIILTLLGVN | EDDEGEKKKK | ||||
GKKQGVPENR | NKAKTQDGVA | LEIQPLNSQE | GIDNEEKDKK | AVKVPKKEKS | ||||
VLQGKLTRLA | VQIGKAGLLM | SALTVFILIL | YFVIDNFVIN | RRPWLPECTP | ||||
IYIQYFVKFF | IIGITVLVVA | VPEGLPLAVT | ISLAYSVKKM | MKDNNLVRHL | ||||
DACETMGNAT | AICSDKTGTL | TMNRMTVVQA | YIGGIHYRQI | PSPDVFLPKV | ||||
LDLIVNGISI | NSAYTSKILP | PEKEGGLPRQ | VGNKTECALL | GFVTDLKQDY | ||||
QAVRNEVPEE | KLYKVYTFNS | VRKSMSTVIR | NPNGGFRMYS | KGASEIILRK | ||||
CNRILDRKGE | AVPFKNKDRD | DMVRTVIEPM | ACDGLRTICI | AYRDFDDTEP | ||||
SWDNENEILT | ELTCIAVVGI | EDPVRPEVPD | AIAKCKQAGI | TVRMVTGDNI | ||||
NTARAIATKC | GILTPGDDFL | CLEGKEFNRL | IRNEKGEVEQ | EKLDKIWPKL | ||||
RVLARSSPTD | KHTLVKGIID | STVGEHRQVV | AVTGDGTNDG | PALKKADVGF | ||||
AMGIAGTDVA | KEASDIILTD | DNFTSIVKAV | MWGRNVYDSI | SKFLQFQLTV | ||||
NVVAVIVAFT | GACITQDSPL | KAVQMLWVNL | IMDTFASLAL | ATEPPTESLL | ||||
KRRPYGRNKP | LISRTMMKNI | LGHAFYQLIV | IFILVFAGEK | FFDIDSGRKA | ||||
PLHSPPSQHY | TIVFNTFVLM | QLFNEINSRK | IHGEKNVFSG | IYRNIIFCSV | ||||
VLGTFICQIF | IVEFGGKPFS | CTSLSLSQWL | WCLFIGIGEL | LWGQFISAIP | ||||
TRSLKFLKEA | GHGTTKEEIT | KDAEGLDEID | HAEMELRRGQ | ILWFRGLNRI | ||||
QTQIDVINTF | QTGASFKGVL | RRQNMGQHLD | VKLVPSSSYI | KVVKAFHSSL | ||||
HESIQKPYNQ | KSIHSFMTHP | EFAIEEELPR | TPLLDEEEEE | NPDKASKFGT | ||||
RVLLLDGEVT | PYANTNNNAV | DCNQVQLPQS | DSSLQSLETS | V |
Funkcija
[uredi | uredi izvor]Protein kodiran ovim genom pripada familiji P-tipa primarnih transportnih iona ATPaza, koje karakterizira formiranje intermedijera aspartil-fosfata tokom reakcijskog ciklusa. Ovi enzimi uklanjaju dvovalentne ione kalcija iz eukariotskih ćelija protiv vrlo velikih gradijenata koncentracije i imaju ključnu ulogu u unutarćelijskoj homeostazi kalcija. Izoforme plazmamembranske kalcijske ATPaze sisara kodirane su sa najmanje četiri odvojena gena, a raznolikost ovih enzima je dodatno povećana alternativnom preradom transkripta. Ekspresija različitih izoformi i varijanti prerade regulirana je na način specifičan za razvoj, tkivo i tip sčelija, što sugerira da su ove pumpe funkcionalno prilagođene fiziološkim potrebama određenih ćelija i tkiva. Ovaj gen kodira izoformu 4 kalcijeve plazmamembranske ATPaze. Identificirane su alternativno prerađene varijante transkripta koje kodiraju različite izoforme.[6]
Interakcije
[uredi | uredi izvor]Pokazalo se da ATP2B4 ima interakcije sa CASK.[8]
Reference
[uredi | uredi izvor]- ^ a b c GRCh38: Ensembl release 89: ENSG00000058668 - Ensembl, maj 2017
- ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000026463 - Ensembl, maj 2017
- ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ Olson S, Wang MG, Carafoli E, Strehler EE, McBride OW (april 1991). "Localization of two genes encoding plasma membrane Ca2(+)-transporting ATPases to human chromosomes 1q25-32 and 12q21-23". Genomics. 9 (4): 629–41. doi:10.1016/0888-7543(91)90356-J. PMID 1674727.
- ^ a b "Entrez Gene: ATP2B4 ATPase, Ca++ transporting, plasma membrane 4".
- ^ "UniProt, P23634" (jezik: en.). Pristupljeno 7. 12. 2021.CS1 održavanje: nepoznati jezik (link)
- ^ Schuh K, Uldrijan S, Gambaryan S, Roethlein N, Neyses L (mart 2003). "Interaction of the plasma membrane Ca2+ pump 4b/CI with the Ca2+/calmodulin-dependent membrane-associated kinase CASK". The Journal of Biological Chemistry. 278 (11): 9778–83. doi:10.1074/jbc.M212507200. PMID 12511555.
Dopunska literatura
[uredi | uredi izvor]- Møller JV, Juul B, le Maire M (maj 1996). "Structural organization, ion transport, and energy transduction of P-type ATPases". Biochimica et Biophysica Acta (BBA) - Reviews on Biomembranes. 1286 (1): 1–51. doi:10.1016/0304-4157(95)00017-8. PMID 8634322.
- Strehler EE, Zacharias DA (januar 2001). "Role of alternative splicing in generating isoform diversity among plasma membrane calcium pumps". Physiological Reviews. 81 (1): 21–50. doi:10.1152/physrev.2001.81.1.21. PMID 11152753.
- Strehler EE, Treiman M (maj 2004). "Calcium pumps of plasma membrane and cell interior". Current Molecular Medicine. 4 (3): 323–35. doi:10.2174/1566524043360735. PMID 15101689.
- Heim R, Hug M, Iwata T, Strehler EE, Carafoli E (april 1992). "Microdiversity of human-plasma-membrane calcium-pump isoform 2 generated by alternative RNA splicing in the N-terminal coding region". European Journal of Biochemistry. 205 (1): 333–40. doi:10.1111/j.1432-1033.1992.tb16784.x. PMID 1313367.
- Brandt P, Neve RL, Kammesheidt A, Rhoads RE, Vanaman TC (mart 1992). "Analysis of the tissue-specific distribution of mRNAs encoding the plasma membrane calcium-pumping ATPases and characterization of an alternately spliced form of PMCA4 at the cDNA and genomic levels". The Journal of Biological Chemistry. 267 (7): 4376–85. doi:10.1016/S0021-9258(18)42846-3. PMID 1531651.
- Strehler EE, James P, Fischer R, Heim R, Vorherr T, Filoteo AG, Penniston JT, Carafoli E (februar 1990). "Peptide sequence analysis and molecular cloning reveal two calcium pump isoforms in the human erythrocyte membrane". The Journal of Biological Chemistry. 265 (5): 2835–42. doi:10.1016/S0021-9258(19)39877-1. PMID 2137451.
- James P, Maeda M, Fischer R, Verma AK, Krebs J, Penniston JT, Carafoli E (februar 1988). "Identification and primary structure of a calmodulin binding domain of the Ca2+ pump of human erythrocytes". The Journal of Biological Chemistry. 263 (6): 2905–10. doi:10.1016/S0021-9258(18)69154-9. PMID 2963820.
- Brandt P, Zurini M, Neve RL, Rhoads RE, Vanaman TC (maj 1988). "A C-terminal, calmodulin-like regulatory domain from the plasma membrane Ca2+-pumping ATPase". Proceedings of the National Academy of Sciences of the United States of America. 85 (9): 2914–8. Bibcode:1988PNAS...85.2914B. doi:10.1073/pnas.85.9.2914. PMC 280113. PMID 2966397.
- Howard A, Barley NF, Legon S, Walters JR (oktobar 1994). "Plasma-membrane calcium-pump isoforms in human and rat liver". The Biochemical Journal. 303 ( Pt 1) (Pt 1): 275–9. doi:10.1042/bj3030275. PMC 1137587. PMID 7945253.
- Stauffer TP, Hilfiker H, Carafoli E, Strehler EE (decembar 1994). "Quantitative analysis of alternative splicing options of human plasma membrane calcium pump genes". The Journal of Biological Chemistry. 269 (50): 32022. doi:10.1016/S0021-9258(18)31797-6. PMID 7989379.
- Stauffer TP, Hilfiker H, Carafoli E, Strehler EE (decembar 1993). "Quantitative analysis of alternative splicing options of human plasma membrane calcium pump genes". The Journal of Biological Chemistry. 268 (34): 25993–6003. doi:10.1016/S0021-9258(19)74484-6. PMID 8245032.
- Váradi A, Molnár E, Ashcroft SJ (mart 1996). "A unique combination of plasma membrane Ca2+-ATPase isoforms is expressed in islets of Langerhans and pancreatic beta-cell lines". The Biochemical Journal. 314 ( Pt 2) (Pt 2): 663–9. doi:10.1042/bj3140663. PMC 1217098. PMID 8670083.
- Santiago-García J, Mas-Oliva J, Saavedra D, Zarain-Herzberg A (februar 1996). "Analysis of mRNA expression and cloning of a novel plasma membrane Ca(2+)-ATPase splice variant in human heart". Molecular and Cellular Biochemistry. 155 (2): 173–82. doi:10.1007/BF00229314. PMID 8700162. S2CID 33539531.
- Zacharias DA, DeMarco SJ, Strehler EE (april 1997). "mRNA expression of the four isoforms of the human plasma membrane Ca(2+)-ATPase in the human hippocampus". Brain Research. Molecular Brain Research. 45 (1): 173–6. doi:10.1016/S0169-328X(97)00009-0. PMID 9105688.
- Dean WL, Chen D, Brandt PC, Vanaman TC (juni 1997). "Regulation of platelet plasma membrane Ca2+-ATPase by cAMP-dependent and tyrosine phosphorylation". The Journal of Biological Chemistry. 272 (24): 15113–9. doi:10.1074/jbc.272.24.15113. PMID 9182531.
- Kim E, DeMarco SJ, Marfatia SM, Chishti AH, Sheng M, Strehler EE (januar 1998). "Plasma membrane Ca2+ ATPase isoform 4b binds to membrane-associated guanylate kinase (MAGUK) proteins via their PDZ (PSD-95/Dlg/ZO-1) domains". The Journal of Biological Chemistry. 273 (3): 1591–5. doi:10.1074/jbc.273.3.1591. PMID 9430700.
- Guerini D, García-Martin E, Gerber A, Volbracht C, Leist M, Merino CG, Carafoli E (januar 1999). "The expression of plasma membrane Ca2+ pump isoforms in cerebellar granule neurons is modulated by Ca2+". The Journal of Biological Chemistry. 274 (3): 1667–76. doi:10.1074/jbc.274.3.1667. PMID 9880546.
- Rosado JA, Sage SO (juni 2000). "Regulation of plasma membrane Ca2+-ATPase by small GTPases and phosphoinositides in human platelets". The Journal of Biological Chemistry. 275 (26): 19529–35. doi:10.1074/jbc.M001319200. PMID 10748016.
Vanjski linkovi
[uredi | uredi izvor]- Lokacija ljudskog genoma ATP2B2 i stranica sa detaljima o genu ATP2B2 u UCSC Genome Browseru.
- Lokacija ljudskog genoma ATP2B4 i stranica sa detaljima o genu ATP2B4 u UCSC Genome Browseru.