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Fibrilin-1

Fibrilin-1
(FBN1)
Kristalografija X-zrakama; Kristalografska struktura regije cbEGF9-hibrida 2-cbEGF10 ljudskog fibrilina 1.[1]
Identifikatori
SimbolFBN1
Alt. simboliFBN, MFS1, WMS
NCBI gen2200
HGNC3603
OMIM134797
PDB2W86
RefSeqNM_000138
UniProtP35555
Ostali podaci
LokusHrom. 15 q21.1
Pretraga za
StruktureSwiss-model
DomeneInterPro

Fibrillin-1 je protein koji je kod ljuidi kodiran iz genskog lokusa FBN1, koji se nalazi na hromosomu 15.[2][3]

FBN1 je gen od 230 kb, sa 65 kodirajućih egzona za poliprotein koji sadrži 2.871 aminokiselinu, a proteolitski se razlaže na C-kraju, pomoću enzima furin-konvertaza dajući fibrillin-1, člana porodice fibrilina i proteinski hormon asprosin, koji je sastavljen od 140 aminokiselina.[4][5]

Fibrilin-1 je veliki glikoprotein vanćelijskog matriksa koji služi kao strukturna komponenta mikrofibrila sa kalcijskom vezom, dugom oko 10-12 nm. Ove mikrofibrile daju snagu strukturnoj podršci i elastičnog i neelastičnog vezivnog tkiva u cijelom tijelu.

Opis

Sekvenca fibrilina-1 obuhvata 47 šestocisteinskih EGF-likih domena, 7 osmocisternskih domenskih homologa latentnog TGF-beta vežućeg proteina i prolinob bogate regije.[6]

Klinički značaj

Mutacije gena FBN1 povezane su sa Marfanovim sindromom i njegovom varijantom Marfanov lipodistrofijski sindrom, autosomno dominantnog Weill-Marchesanijevog sindroma, izoliranoj ektopijom sočiva, MASS fenotipa i Shprintzen-Goldbergovog sindroma.[7][8][9] Mutacije i FBN1 i FBN2 gena povezane su mutacijom za adolescentnu idiopatsku skoliozu.[10]

Također pogledajte

Reference

  1. ^ PDB 2W86; Jensen SA, Iqbal S, Lowe ED, Redfield C, Handford PA (maj 2009). "Structure and interdomain interactions of a hybrid domain: a disulphide-rich module of the fibrillin/LTBP superfamily of matrix proteins". Structure. 17 (5): 759–68. doi:10.1016/j.str.2009.03.014. PMC 2724076. PMID 19446531.CS1 održavanje: upotreba parametra authors (link)
  2. ^ Biery NJ, Eldadah ZA, Moore CS, Stetten G, Spencer F, Dietz HC (1999). "Revised genomic organization of FBN1 and significance for regulated gene expression". Genomics. 56 (1): 70–7. doi:10.1006/geno.1998.5697. PMID 10036187.CS1 održavanje: upotreba parametra authors (link)
  3. ^ Faivre L, Gorlin RJ, Wirtz MK, Godfrey M, Dagoneau N, Samples JR, Le Merrer M, Collod-Beroud G, Boileau C, Munnich A, Cormier-Daire V (2003). "In frame fibrillin-1 gene deletion in autosomal dominant Weill-Marchesani syndrome". Journal of Medical Genetics. 40 (1): 34–6. doi:10.1136/jmg.40.1.34. PMC 1735272. PMID 12525539.CS1 održavanje: upotreba parametra authors (link)
  4. ^ Romere C, Duerrschmid C, Bournat J, Constable P, Jain M, Xia F, Saha PK, Del Solar M, Zhu B, York B, Sarkar P, Rendon DA, Gaber MW, LeMaire SA, Coselli JS, Milewicz DM, Sutton VR, Butte NF, Moore DD, Chopra AR (april 2016). "Asprosin, a Fasting-Induced Glucogenic Protein Hormone". Cell. 165 (3): 566–79. doi:10.1016/j.cell.2016.02.063. PMID 27087445.CS1 održavanje: upotreba parametra authors (link)
  5. ^ Jacquinet A, Verloes A, Callewaert B, Coremans C, Coucke P, Paepe A, Kornak U, Lebrun F, Lombret J, Pierard GE, Robinson PN, Symoens S, Van Maldergem L, Debray FG (2014). "Neonatal progeroid variant of Marfan syndrome with congenital lipodystrophy results from mutations at the 3' end of FBN1 gene". Eur. J. Med. Genet. 57 (5): 230–234. doi:10.1016/j.ejmg.2014.02.012.CS1 održavanje: upotreba parametra authors (link)
  6. ^ Ramachandra CJ, Mehta A, Guo KW, Wong P, Tan JL, Shim W (2015). "Molecular pathogenesis of Marfan syndrome". Int. J. Cardiol. 187: 585–91. doi:10.1016/j.ijcard.2015.03.423. PMID 25863307.CS1 održavanje: upotreba parametra authors (link)
  7. ^ "Entrez Gene: FBN1 fibrillin 1".
  8. ^ OMIM entry *134797 – FIBRILLIN 1
  9. ^ OMIM entry #616914 - MARFAN LIPODYSTROPHY SYNDROME; MFLS; accessed 9 December 2016.
  10. ^ Buchan JG, Alvarado DM, Haller GE, Cruchaga C, Harms MB, Zhang T, Willing MC, Grange DK, Braverman AC, Miller NH, Morcuende JA, Tang NL, Lam TP, Ng BK, Cheng JC, Dobbs MB, Gurnett CA (2014). "Rare variants in FBN1 and FBN2 are associated with severe adolescent idiopathic scoliosis". Human Molecular Genetics. 23 (19): 5271–82. doi:10.1093/hmg/ddu224. PMID 24833718.CS1 održavanje: upotreba parametra authors (link)

Dopunska literatura

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