LRRK2
Leucinom bogata ponavljajuća kinaza 2 (LRRK2), znano i kao dardarin (od baskijske riječi dardara što znači drhtanje) i PARK8 (od ranije identificirane povezanosti s Parkinsonovom bolešću), je kinazni enzim koji je kod ljudi kodiran genom LRRK2.[5] LRRK2 je član kinazne porodice leucinski bogatih enzima. Varijante ovog grna povezuju se sa Parkinsonovo i Crohnovom bolešču.[5][6]
Aminokiselinska sekvenca
[uredi | uredi izvor]Dužina polipeptidnog lanca je 2.527 aminokiselina, a molekulska težina 286.103 Da.[7]
10 | 20 | 30 | 40 | 50 | ||||
---|---|---|---|---|---|---|---|---|
MASGSCQGCE | EDEETLKKLI | VRLNNVQEGK | QIETLVQILE | DLLVFTYSER | ||||
ASKLFQGKNI | HVPLLIVLDS | YMRVASVQQV | GWSLLCKLIE | VCPGTMQSLM | ||||
GPQDVGNDWE | VLGVHQLILK | MLTVHNASVN | LSVIGLKTLD | LLLTSGKITL | ||||
LILDEESDIF | MLIFDAMHSF | PANDEVQKLG | CKALHVLFER | VSEEQLTEFV | ||||
ENKDYMILLS | ALTNFKDEEE | IVLHVLHCLH | SLAIPCNNVE | VLMSGNVRCY | ||||
NIVVEAMKAF | PMSERIQEVS | CCLLHRLTLG | NFFNILVLNE | VHEFVVKAVQ | ||||
QYPENAALQI | SALSCLALLT | ETIFLNQDLE | EKNENQENDD | EGEEDKLFWL | ||||
EACYKALTWH | RKNKHVQEAA | CWALNNLLMY | QNSLHEKIGD | EDGHFPAHRE | ||||
VMLSMLMHSS | SKEVFQASAN | ALSTLLEQNV | NFRKILLSKG | IHLNVLELMQ | ||||
KHIHSPEVAE | SGCKMLNHLF | EGSNTSLDIM | AAVVPKILTV | MKRHETSLPV | ||||
QLEALRAILH | FIVPGMPEES | REDTEFHHKL | NMVKKQCFKN | DIHKLVLAAL | ||||
NRFIGNPGIQ | KCGLKVISSI | VHFPDALEML | SLEGAMDSVL | HTLQMYPDDQ | ||||
EIQCLGLSLI | GYLITKKNVF | IGTGHLLAKI | LVSSLYRFKD | VAEIQTKGFQ | ||||
TILAILKLSA | SFSKLLVHHS | FDLVIFHQMS | SNIMEQKDQQ | FLNLCCKCFA | ||||
KVAMDDYLKN | VMLERACDQN | NSIMVECLLL | LGADANQAKE | GSSLICQVCE | ||||
KESSPKLVEL | LLNSGSREQD | VRKALTISIG | KGDSQIISLL | LRRLALDVAN | ||||
NSICLGGFCI | GKVEPSWLGP | LFPDKTSNLR | KQTNIASTLA | RMVIRYQMKS | ||||
AVEEGTASGS | DGNFSEDVLS | KFDEWTFIPD | SSMDSVFAQS | DDLDSEGSEG | ||||
SFLVKKKSNS | ISVGEFYRDA | VLQRCSPNLQ | RHSNSLGPIF | DHEDLLKRKR | ||||
KILSSDDSLR | SSKLQSHMRH | SDSISSLASE | REYITSLDLS | ANELRDIDAL | ||||
SQKCCISVHL | EHLEKLELHQ | NALTSFPQQL | CETLKSLTHL | DLHSNKFTSF | ||||
PSYLLKMSCI | ANLDVSRNDI | GPSVVLDPTV | KCPTLKQFNL | SYNQLSFVPE | ||||
NLTDVVEKLE | QLILEGNKIS | GICSPLRLKE | LKILNLSKNH | ISSLSENFLE | ||||
ACPKVESFSA | RMNFLAAMPF | LPPSMTILKL | SQNKFSCIPE | AILNLPHLRS | ||||
LDMSSNDIQY | LPGPAHWKSL | NLRELLFSHN | QISILDLSEK | AYLWSRVEKL | ||||
HLSHNKLKEI | PPEIGCLENL | TSLDVSYNLE | LRSFPNEMGK | LSKIWDLPLD | ||||
ELHLNFDFKH | IGCKAKDIIR | FLQQRLKKAV | PYNRMKLMIV | GNTGSGKTTL | ||||
LQQLMKTKKS | DLGMQSATVG | IDVKDWPIQI | RDKRKRDLVL | NVWDFAGREE | ||||
FYSTHPHFMT | QRALYLAVYD | LSKGQAEVDA | MKPWLFNIKA | RASSSPVILV | ||||
GTHLDVSDEK | QRKACMSKIT | KELLNKRGFP | AIRDYHFVNA | TEESDALAKL | ||||
RKTIINESLN | FKIRDQLVVG | QLIPDCYVEL | EKIILSERKN | VPIEFPVIDR | ||||
KRLLQLVREN | QLQLDENELP | HAVHFLNESG | VLLHFQDPAL | QLSDLYFVEP | ||||
KWLCKIMAQI | LTVKVEGCPK | HPKGIISRRD | VEKFLSKKRK | FPKNYMSQYF | ||||
KLLEKFQIAL | PIGEEYLLVP | SSLSDHRPVI | ELPHCENSEI | IIRLYEMPYF | ||||
PMGFWSRLIN | RLLEISPYML | SGRERALRPN | RMYWRQGIYL | NWSPEAYCLV | ||||
GSEVLDNHPE | SFLKITVPSC | RKGCILLGQV | VDHIDSLMEE | WFPGLLEIDI | ||||
CGEGETLLKK | WALYSFNDGE | EHQKILLDDL | MKKAEEGDLL | VNPDQPRLTI | ||||
PISQIAPDLI | LADLPRNIML | NNDELEFEQA | PEFLLGDGSF | GSVYRAAYEG | ||||
EEVAVKIFNK | HTSLRLLRQE | LVVLCHLHHP | SLISLLAAGI | RPRMLVMELA | ||||
SKGSLDRLLQ | QDKASLTRTL | QHRIALHVAD | GLRYLHSAMI | IYRDLKPHNV | ||||
LLFTLYPNAA | IIAKIADYGI | AQYCCRMGIK | TSEGTPGFRA | PEVARGNVIY | ||||
NQQADVYSFG | LLLYDILTTG | GRIVEGLKFP | NEFDELEIQG | KLPDPVKEYG | ||||
CAPWPMVEKL | IKQCLKENPQ | ERPTSAQVFD | ILNSAELVCL | TRRILLPKNV | ||||
IVECMVATHH | NSRNASIWLG | CGHTDRGQLS | FLDLNTEGYT | SEEVADSRIL | ||||
CLALVHLPVE | KESWIVSGTQ | SGTLLVINTE | DGKKRHTLEK | MTDSVTCLYC | ||||
NSFSKQSKQK | NFLLVGTADG | KLAIFEDKTV | KLKGAAPLKI | LNIGNVSTPL | ||||
MCLSESTNST | ERNVMWGGCG | TKIFSFSNDF | TIQKLIETRT | SQLFSYAAFS | ||||
DSNIITVVVD | TALYIAKQNS | PVVEVWDKKT | EKLCGLIDCV | HFLREVMVKE | ||||
NKESKHKMSY | SGRVKTLCLQ | KNTALWIGTG | GGHILLLDLS | TRRLIRVIYN | ||||
FCNSVRVMMT | AQLGSLKNVM | LVLGYNRKNT | EGTQKQKEIQ | SCLTVWDINL | ||||
PHEVQNLEKH | IEVRKELAEK | MRRTSVE |
- Simboli
C: Cistein
D: Asparaginska kiselina
E: Glutaminska kiselina
F: Fenilalanin
G: Glicin
H: Histidin
I: Izoleucin
K: Lizin
L: Leucin
M: Metionin
N: Asparagin
P: Prolin
Q: Glutamin
R: Arginin
S: Serin
T: Treonin
V: Valin
W: Triptofan
Y: Tirozin
Funkcija
[uredi | uredi izvor]Gen LRRK2 kodira protein sa ponavljajućom armadilo (ARM) regijom, pnavljajućom ankirinskom (ANK) regijom, domenima leucinski bogatog ponavljanja (LRR), kinaze, RAS, GTPaza i WD40. Protein je prisutan uglavnom u citoplazmi, ali se povezuje i sa vanjskom mitohondrijskom membranom.
LRRK2 stupa u interakciju sa C-terminalnim R2 domenom RING prsta parkin, a parkin u interakciju sa COR domenom LRRK2. Ekspresija se javlja u mutantima apoptotske ćelijske smrti, izazvane mutacijom LRRK2 u ćelijama neuroblastoma i u mišjim korteksnim neuronima.[8]
Ekspresija mutanata LRRK2 upletena u autosomno dominantnu Parkinsonovu bolest uzrokuje skraćivanje i pojednostavljivanje dendritskog stabla in vivo i u kultiviranim neuronima (in vitro).[9] Posredovano je djelimično i izmjenama u makroautofagiji,[10][11][12][13][14] i može se prevenirati protein-kinazom A, putem regulacije autopfagijskog proteina LC3.[15] Mutacije G2019S i R1441C izazivaju postsinapsnu neravnotežu kalcija, što mitofagijom dovodi do viška mitohondrijskog klirensa dendrita.[16] LRRK2 je također supstrat za šaperonski posredovanu autofagiju.[17]
Klinički značaj
[uredi | uredi izvor]Mutacije u ovom genu su povezane sa Parkinsonovom bolešćutype 8.[18]
Mutacija Gly2019Ser rezultira povećanom aktivnošću kinaze i relativno je čest uzrok porodične Parkinsonove bolesti kod kavkazoida.[19] Može uzrokovati i sporadičnu Parkinsonovu bolest. Mutirana Gly aminokiselina konzervirana je u svim kinaznim domenima svih vrsta.
Mutacija Gly2019Ser jedna je od malog broja mutacija LRRK2 za koje je dokazano da uzrokuju Parkinsonovu bolest. Od njih, Gly2019Ser je najčešći u zapadnom svijetu i čini ~2% svih slučajeva Parkinsonove bolesti u sjevernoameričkih kavkazoida. Ova mutacija je učestalija je u određenim populacijama, a nalazi se u približno 20% svih pacijenata s Aškenazi jevrejskom Parkinsonovom bolešću i u približno 40% svih pacijenata s Parkinsonovom bolešću sjevernoafričkog berberskog porijekla.[20][21]
Neočekivano, studije pridruživanja širom genoma otkrile su povezanost između LRRK2 i Crohnove bolesti, kao i s Parkinsonovom bolešću, što ukazuje na to da dvije bolesti imaju zajedničke puteve.[22][23]
Napravljeni su pokušaji uzgoja kristala LRRK2 na brodu Međunarodne svemirske stanica, jer okruženje niske gravitacije čini protein manje osjetljivim na sedimentaciju i konvekciju, pa se stoga može kristalizirati.[24]
Mutacije u genu LRRK2 glavni su faktor koji doprinosi genetičkoj osnovi i razvoju Parkinsonove bolesti (PD), a pokazalo se da preko 100 mutacija u ovom genu povećava šanse za razvoj PD. Ove mutacije najčešće su u sjevernoafričkim arapskim berberskim, kineskim i japanskim populacijama.[25]
Reference
[uredi | uredi izvor]- ^ a b c GRCh38: Ensembl release 89: ENSG00000188906 - Ensembl, maj 2017
- ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000036273 - 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.
- ^ a b Paisán-Ruíz C, Jain S, Evans EW, Gilks WP, Simón J, van der Brug M, López de Munain A, Aparicio S, Gil AM, Khan N, Johnson J, Martinez JR, Nicholl D, Carrera IM, Pena AS, de Silva R, Lees A, Martí-Massó JF, Pérez-Tur J, Wood NW, Singleton AB (novembar 2004). "Cloning of the gene containing mutations that cause PARK8-linked Parkinson's disease". Neuron. 44 (4): 595–600. doi:10.1016/j.neuron.2004.10.023. PMID 15541308. S2CID 16688488.
- ^ Zimprich A, Biskup S, Leitner P, Lichtner P, Farrer M, Lincoln S, Kachergus J, Hulihan M, Uitti RJ, Calne DB, Stoessl AJ, Pfeiffer RF, Patenge N, Carbajal IC, Vieregge P, Asmus F, Müller-Myhsok B, Dickson DW, Meitinger T, Strom TM, Wszolek ZK, Gasser T (novembar 2004). "Mutations in LRRK2 cause autosomal-dominant parkinsonism with pleomorphic pathology". Neuron. 44 (4): 601–7. doi:10.1016/j.neuron.2004.11.005. PMID 15541309. S2CID 8642468.
- ^ "UniProt, Q5S007". Pristupljeno 11. 8. 2021.
- ^ Smith WW, Pei Z, Jiang H, Moore DJ, Liang Y, West AB, Dawson VL, Dawson TM, Ross CA (decembar 2005). "Leucine-rich repeat kinase 2 (LRRK2) interacts with parkin, and mutant LRRK2 induces neuronal degeneration". Proceedings of the National Academy of Sciences of the United States of America. 102 (51): 18676–81. Bibcode:2005PNAS..10218676S. doi:10.1073/pnas.0508052102. PMC 1317945. PMID 16352719.
- ^ MacLeod D, Dowman J, Hammond R, Leete T, Inoue K, Abeliovich A (novembar 2006). "The familial Parkinsonism gene LRRK2 regulates neurite process morphology". Neuron. 52 (4): 587–93. doi:10.1016/j.neuron.2006.10.008. PMID 17114044. S2CID 16966163.
- ^ Plowey ED, Cherra SJ, Liu YJ, Chu CT (maj 2008). "Role of autophagy in G2019S-LRRK2-associated neurite shortening in differentiated SH-SY5Y cells". Journal of Neurochemistry. 105 (3): 1048–56. doi:10.1111/j.1471-4159.2008.05217.x. PMC 2361385. PMID 18182054.
- ^ Friedman LG, Lachenmayer ML, Wang J, He L, Poulose SM, Komatsu M, Holstein GR, Yue Z (maj 2012). "Disrupted autophagy leads to dopaminergic axon and dendrite degeneration and promotes presynaptic accumulation of α-synuclein and LRRK2 in the brain". The Journal of Neuroscience. 32 (22): 7585–93. doi:10.1523/JNEUROSCI.5809-11.2012. PMC 3382107. PMID 22649237.
- ^ Gómez-Suaga P, Luzón-Toro B, Churamani D, Zhang L, Bloor-Young D, Patel S, Woodman PG, Churchill GC, Hilfiker S (februar 2012). "Leucine-rich repeat kinase 2 regulates autophagy through a calcium-dependent pathway involving NAADP". Human Molecular Genetics. 21 (3): 511–25. doi:10.1093/hmg/ddr481. PMC 3259011. PMID 22012985.
- ^ Ramonet D, Daher JP, Lin BM, Stafa K, Kim J, Banerjee R, Westerlund M, Pletnikova O, Glauser L, Yang L, Liu Y, Swing DA, Beal MF, Troncoso JC, McCaffery JM, Jenkins NA, Copeland NG, Galter D, Thomas B, Lee MK, Dawson TM, Dawson VL, Moore DJ (april 2011). Cai H (ured.). "Dopaminergic neuronal loss, reduced neurite complexity and autophagic abnormalities in transgenic mice expressing G2019S mutant LRRK2". PLOS ONE. 6 (4): e18568. Bibcode:2011PLoSO...618568R. doi:10.1371/journal.pone.0018568. PMC 3071839. PMID 21494637.
- ^ Alegre-Abarrategui J, Christian H, Lufino MM, Mutihac R, Venda LL, Ansorge O, Wade-Martins R (novembar 2009). "LRRK2 regulates autophagic activity and localizes to specific membrane microdomains in a novel human genomic reporter cellular model". Human Molecular Genetics. 18 (21): 4022–34. doi:10.1093/hmg/ddp346. PMC 2758136. PMID 19640926.
- ^ Cherra SJ, Kulich SM, Uechi G, Balasubramani M, Mountzouris J, Day BW, Chu CT (august 2010). "Regulation of the autophagy protein LC3 by phosphorylation". The Journal of Cell Biology. 190 (4): 533–9. doi:10.1083/jcb.201002108. PMC 2928022. PMID 20713600.
- ^ Cherra SJ, Steer E, Gusdon AM, Kiselyov K, Chu CT (februar 2013). "Mutant LRRK2 elicits calcium imbalance and depletion of dendritic mitochondria in neurons". The American Journal of Pathology. 182 (2): 474–84. doi:10.1016/j.ajpath.2012.10.027. PMC 3562730. PMID 23231918.
- ^ Orenstein SJ, Kuo SH, Tasset I, Arias E, Koga H, Fernandez-Carasa I, Cortes E, Honig LS, Dauer W, Consiglio A, Raya A, Sulzer D, Cuervo AM (april 2013). "Interplay of LRRK2 with chaperone-mediated autophagy". Nature Neuroscience. 16 (4): 394–406. doi:10.1038/nn.3350. PMC 3609872. PMID 23455607.
- ^ "Entrez Gene: LRRK2 leucine-rich repeat kinase 2".
- ^ Gilks WP, Abou-Sleiman PM, Gandhi S, Jain S, Singleton A, Lees AJ, Shaw K, Bhatia KP, Bonifati V, Quinn NP, Lynch J, Healy DG, Holton JL, Revesz T, Wood NW (februar 2005). "A common LRRK2 mutation in idiopathic Parkinson's disease". Lancet. 365 (9457): 415–6. doi:10.1016/S0140-6736(05)17830-1. PMID 15680457. S2CID 36186136.
- ^ Healy DG, Falchi M, O'Sullivan SS, Bonifati V, Durr A, Bressman S, et al. (juli 2008). "Phenotype, genotype, and worldwide genetic penetrance of LRRK2-associated Parkinson's disease: a case-control study". The Lancet. Neurology. 7 (7): 583–90. doi:10.1016/S1474-4422(08)70117-0. PMC 2832754. PMID 18539534.
- ^ Lesage S, Dürr A, Tazir M, Lohmann E, Leutenegger AL, Janin S, et al. (januar 2006). "LRRK2 G2019S as a cause of Parkinson's disease in North African Arabs". The New England Journal of Medicine. 354 (4): 422–3. doi:10.1056/NEJMc055540. PMID 16436781.
- ^ Manolio TA (juli 2010). "Genomewide association studies and assessment of the risk of disease". The New England Journal of Medicine. 363 (2): 166–76. doi:10.1056/NEJMra0905980. PMID 20647212.
- ^ Nalls MA, Plagnol V, Hernandez DG, Sharma M, Sheerin UM, Saad M, Simón-Sánchez J, Schulte C, Lesage S, Sveinbjörnsdóttir S, Stefánsson K, Martinez M, Hardy J, Heutink P, Brice A, Gasser T, Singleton AB, Wood NW (februar 2011). "Imputation of sequence variants for identification of genetic risks for Parkinson's disease: a meta-analysis of genome-wide association studies". Lancet. 377 (9766): 641–9. doi:10.1016/S0140-6736(10)62345-8. PMC 3696507. PMID 21292315.
- ^ Carreau, Mark (14. 11. 2018). "ISS Cargo Missions To Test Soyuz, Deliver New Science". Aviation Week.
A collaboration between the Michael J. Fox Foundation, of New York City, and Merck Research Laboratories, of Kenilworth, New Jersey, will seek to grow crystals of a key gene protein, Leucine-Rich Repeat Kinase 2 (LRRK2), in an effort to advance the search for a cure for Parkinson’s disease. Crystals cultured in the absence of gravity are less susceptible to sedimentation and convection, rendering them larger and easier to map than those grown in labs on Earth in order to design medicines.
- ^ “Young-Onset Parkinson's.” Parkinson's Foundation, 2 Oct. 2018, www.parkinson.org/Understanding-Parkinsons/What-is-Parkinsons/Young-Onset-Parkinsons.
Dopunska literatura
[uredi | uredi izvor]- Singleton AB (august 2005). "Altered alpha-synuclein homeostasis causing Parkinson's disease: the potential roles of dardarin". Trends in Neurosciences. 28 (8): 416–21. doi:10.1016/j.tins.2005.05.009. PMID 15955578. S2CID 53204736.
- Mata IF, Wedemeyer WJ, Farrer MJ, Taylor JP, Gallo KA (maj 2006). "LRRK2 in Parkinson's disease: protein domains and functional insights". Trends in Neurosciences. 29 (5): 286–93. doi:10.1016/j.tins.2006.03.006. PMID 16616379. S2CID 11458231.
- Haugarvoll K, Wszolek ZK (juli 2006). "PARK8 LRRK2 parkinsonism". Current Neurology and Neuroscience Reports. 6 (4): 287–94. doi:10.1007/s11910-006-0020-0. PMID 16822348. S2CID 25252449.
- Bonifati V (septembar 2006). "The pleomorphic pathology of inherited Parkinson's disease: lessons from LRRK2". Current Neurology and Neuroscience Reports. 6 (5): 355–7. doi:10.1007/s11910-996-0013-z. PMID 16928343. S2CID 41352829.
- Schapira AH (septembar 2006). "The importance of LRRK2 mutations in Parkinson disease". Archives of Neurology. 63 (9): 1225–8. doi:10.1001/archneur.63.9.1225. PMID 16966498.
- Whaley NR, Uitti RJ, Dickson DW, Farrer MJ, Wszolek ZK (2006). "Clinical and pathologic features of families with LRRK2-associated Parkinson's disease". Parkinson's Disease and Related Disorders. Journal of Neural Transmission. Supplementum. str. 221–229. doi:10.1007/978-3-211-45295-0_34. ISBN 978-3-211-28927-3. PMID 17017533.
- Gasser, T. (2006). "Molecular genetic findings in LRRK2 American, Canadian and German families". Parkinson's Disease and Related Disorders. Journal of Neural Transmission. Supplementum. str. 231–234. doi:10.1007/978-3-211-45295-0_35. ISBN 978-3-211-28927-3. PMID 17017534.
- Tan EK (novembar 2006). "Identification of a common genetic risk variant (LRRK2 Gly2385Arg) in Parkinson's disease". Annals of the Academy of Medicine, Singapore. 35 (11): 840–2. PMID 17160203.
Vanjski linkovi
[uredi | uredi izvor]- GeneReviews/NCBI/NIH/UW entry on LRRK2-Related Parkinson Disease
- LRRK2 protein, human na US National Library of Medicine Medical Subject Headings (MeSH)