DRD4
Dopaminski receptor D4 je dopaminski D2-liki G-protein spregnuti receptor koji je kodiran genom DRD4 sa hromosoma 11, regija 11p15.5.[5]
Nedavno je objavljena struktura DRD4 u kombinaciji s antipsihotskim lijekom nemonaprid.[6]
Kao i kod drugih podtipova dopaminskih receptora, receptor D4 aktivira neurotransmiter dopamin. Povezan je s mnogim neurvnim i psihijatrijskim stanjima [7] uključujući shizofreniju i bipolarni poremećaj,[8] ADHD,[9][10] addiktivna ponašanja,[11] Parkinsnsonovu bolest,[12] i poremećaj ishrane kao što je anoreksija nervoza.[13] Nađena je slaba povezanost između DRD4 i graničnog poremećaja ličnosti.
Također je meta lijekova koji liječe shizofreniju i Parkinsonovu bolest.[14] Receptor D4 smatra se sličnim D2, u kojem aktivirani receptor inhibira enzim adenilat-ciklaza, čime se smanjuje unutarćelijska koncentracija drugog glasnika cAMPa.[15]
Aminokiselinska sekvenca
Dužina polipeptidnog lanca je 467 aminokiselina, a molekulska težina 48.361 Da.[16].
| 10 | 20 | 30 | 40 | 50 | ||||
|---|---|---|---|---|---|---|---|---|
| MGNRSTADAD | GLLAGRGPAA | GASAGASAGL | AGQGAAALVG | GVLLIGAVLA | ||||
| GNSLVCVSVA | TERALQTPTN | SFIVSLAAAD | LLLALLVLPL | FVYSEVQGGA | ||||
| WLLSPRLCDA | LMAMDVMLCT | ASIFNLCAIS | VDRFVAVAVP | LRYNRQGGSR | ||||
| RQLLLIGATW | LLSAAVAAPV | LCGLNDVRGR | DPAVCRLEDR | DYVVYSSVCS | ||||
| FFLPCPLMLL | LYWATFRGLQ | RWEVARRAKL | HGRAPRRPSG | PGPPSPTPPA | ||||
| PRLPQDPCGP | DCAPPAPGLP | RGPCGPDCAP | AAPGLPPDPC | GPDCAPPAPG | ||||
| LPQDPCGPDC | APPAPGLPRG | PCGPDCAPPA | PGLPQDPCGP | DCAPPAPGLP | ||||
| PDPCGSNCAP | PDAVRAAALP | PQTPPQTRRR | RRAKITGRER | KAMRVLPVVV | ||||
| GAFLLCWTPF | FVVHITQALC | PACSVPPRLV | SAVTWLGYVN | SALNPVIYTV | ||||
| FNAEFRNVFR | KALRACC |
Genetika
Ljudski protein je kodiran DRD4 na hromosom 11 nalazi sw na sekvenci u 11p15,5.[17]
Postoje male varijacije (mutacije/polimorfizmi) u ljudskom genu:
- 48-bazni par VNTR u egzon 3
- C-521T u promotoru
- Delecija 13 baznih parova, od 235 do 247 u egzonu 1
- Ponavljanje 12 baznih parova u egzonu 1[18]
- Val194Gly
- Polimorfna tandemska duplikacija 48 bp[19]
Mutacije u ovom genu povezane su s različitim fenotipovima ponašanja, uključujući disfunkciju autonomnog nervnog sistema, poremećaj pažnje/hiperaktivnosti,[20] shizofreniju[21] and the personality trait of novelty seeking.[22]
Također pogledajte
Reference
- ^ a b c ENSG00000276825 GRCh38: Ensembl release 89: ENSG00000069696, ENSG00000276825 - Ensembl, maj 2017
- ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000025496 - 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.
- ^ Van Tol HH, Bunzow JR, Guan HC, Sunahara RK, Seeman P, Niznik HB, Civelli O (april 1991). "Cloning of the gene for a human dopamine D4 receptor with high affinity for the antipsychotic clozapine". Nature. 350 (6319): 610–4. Bibcode:1991Natur.350..610V. doi:10.1038/350610a0. PMID 1840645. S2CID 4244670.
- ^ Wang S, Wacker D, Levit A, Che T, Betz RM, McCorvy JD, Venkatakrishnan AJ, Huang XP, Dror RO, Shoichet BK, Roth BL (oktobar 2017). "D4 dopamine receptor high-resolution structures enable the discovery of selective agonists". Science. 358 (6361): 381–386. Bibcode:2017Sci...358..381W. doi:10.1126/science.aan5468. PMC 5856174. PMID 29051383.
- ^ Ptácek R, Kuzelová H, Stefano GB (septembar 2011). "Dopamine D4 receptor gene DRD4 and its association with psychiatric disorders". Medical Science Monitor. 17 (9): RA215–20. doi:10.12659/MSM.881925. PMC 3560519. PMID 21873960.
- ^ Domschke K (juli 2013). "Clinical and molecular genetics of psychotic depression". Schizophrenia Bulletin. 39 (4): 766–75. doi:10.1093/schbul/sbt040. PMC 3686457. PMID 23512949.
- ^ LaHoste GJ, Swanson JM, Wigal SB, Glabe C, Wigal T, King N, Kennedy JL (maj 1996). "Dopamine D4 receptor gene polymorphism is associated with attention deficit hyperactivity disorder". Molecular Psychiatry. 1 (2): 121–4. PMID 9118321.
- ^ Smalley SL, Bailey JN, Palmer CG, Cantwell DP, McGough JJ, Del'Homme MA, Asarnow JR, Woodward JA, Ramsey C, Nelson SF (septembar 1998). "Evidence that the dopamine D4 receptor is a susceptibility gene in attention deficit hyperactivity disorder". Molecular Psychiatry. 3 (5): 427–30. doi:10.1038/sj.mp.4000457. PMID 9774776.
- ^ McGeary J (septembar 2009). "The DRD4 exon 3 VNTR polymorphism and addiction-related phenotypes: a review". Pharmacology Biochemistry and Behavior. 93 (3): 222–9. doi:10.1016/j.pbb.2009.03.010. PMC 2706302. PMID 19336242.
- ^ Cormier F, Muellner J, Corvol JC (april 2013). "Genetics of impulse control disorders in Parkinson's disease". Journal of Neural Transmission. 120 (4): 665–71. doi:10.1007/s00702-012-0934-4. PMID 23232665. S2CID 21967333.
- ^ Rask-Andersen M, Olszewski PK, Levine AS, Schiöth HB (mart 2010). "Molecular mechanisms underlying anorexia nervosa: focus on human gene association studies and systems controlling food intake". Brain Research Reviews. 62 (2): 147–64. doi:10.1016/j.brainresrev.2009.10.007. PMID 19931559. S2CID 37635456.
- ^ Ptáček R, Kuželová H, Stefano GB, Raboch J, Kream RM (april 2013). "Targeted D4 dopamine receptors: implications for drug discovery and therapeutic development". Current Drug Targets. 14 (4): 507–12. doi:10.2174/1389450111314040012. PMID 23469923.
- ^ Neve KA, Seamans JK, Trantham-Davidson H (august 2004). "Dopamine receptor signaling". Journal of Receptor and Signal Transduction Research. 24 (3): 165–205. CiteSeerX 10.1.1.465.5011. doi:10.1081/RRS-200029981. PMID 15521361. S2CID 12407397.
- ^ "UniProt, P21917". Pristupljeno 21. 8. 2021.
- ^ Van Tol HH, Wu CM, Guan HC, Ohara K, Bunzow JR, Civelli O, Kennedy J, Seeman P, Niznik HB, Jovanovic V (juli 1992). "Multiple dopamine D4 receptor variants in the human population". Nature. 358 (6382): 149–52. Bibcode:1992Natur.358..149T. doi:10.1038/358149a0. PMID 1319557. S2CID 4345839.
- ^ Catalano M, Nobile M, Novelli E, Nöthen MM, Smeraldi E (oktobar 1993). "Distribution of a novel mutation in the first exon of the human dopamine D4 receptor gene in psychotic patients". Biological Psychiatry. 34 (7): 459–64. doi:10.1016/0006-3223(93)90236-7. PMID 8268330. S2CID 34841647.
- ^ Rondou P, Haegeman G, Van Craenenbroeck K (juni 2010). "The dopamine D4 receptor: biochemical and signalling properties". Cellular and Molecular Life Sciences. 67 (12): 1971–86. doi:10.1007/s00018-010-0293-y. PMID 20165900. S2CID 21432517.
- ^ Thapar A, Langley K, Owen MJ, O'Donovan MC (decembar 2007). "Advances in genetic findings on attention deficit hyperactivity disorder". Psychological Medicine. 37 (12): 1681–92. doi:10.1017/S0033291707000773. PMID 17506925.
- ^ Gene Overview of All Published Schizophrenia-Association Studies for DRD4 Arhivirano 21. 2. 2009. na Wayback Machine – SzGene database at Schizophrenia Research Forum.
- ^ Munafò MR, Yalcin B, Willis-Owen SA, Flint J (januar 2008). "Association of the dopamine D4 receptor (DRD4) gene and approach-related personality traits: meta-analysis and new data". Biological Psychiatry. 63 (2): 197–206. doi:10.1016/j.biopsych.2007.04.006. PMID 17574217. S2CID 28997438.
Vanjski linkovi
- "Dopamine Receptors: D4". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology. Arhivirano s originala, 5. 3. 2012. Pristupljeno 21. 8. 2021.
- Current Research on the DRD4 Gene
- Receptors, Dopamine D4 na US National Library of Medicine Medical Subject Headings (MeSH)
- Marisa Wilson. "Are you a thrill seeker??". Davidson College. Pristupljeno 5. 4. 2008.
- "The D4DR Gene". D4DR Club. Arhivirano s originala, 13. 10. 2007. Pristupljeno 5. 4. 2008.
- P21917
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