FAM20A
FAM20A je protein koji je kod ljudi kodiran genom FAM20A.[5]
Dužina polipeptidnog lanca je 541 aminokiselinu, sa molekulskom težinom od 61.417[6].
Aminokiselinska sekvenca
- 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
| 10 | 20 | 30 | 40 | 50 | ||||
|---|---|---|---|---|---|---|---|---|
| MPGLRRDRLL | TLLLLGALLS | ADLYFHLWPQ | VQRQLRPRER | PRGCPCTGRA | ||||
| SSLARDSAAA | ASDPGTIVHN | FSRTEPRTEP | AGGSHSGSSS | KLQALFAHPL | ||||
| YNVPEEPPLL | GAEDSLLASQ | EALRYYRRKV | ARWNRRHKMY | REQMNLTSLD | ||||
| PPLQLRLEAS | WVQFHLGINR | HGLYSRSSPV | VSKLLQDMRH | FPTISADYSQ | ||||
| DEKALLGACD | CTQIVKPSGV | HLKLVLRFSD | FGKAMFKPMR | QQRDEETPVD | ||||
| FFYFIDFQRH | NAEIAAFHLD | RILDFRRVPP | TVGRIVNVTK | EILEVTKNEI | ||||
| LQSVFFVSPA | SNVCFFAKCP | YMCKTEYAVC | GNPHLLEGSL | SAFLPSLNLA | ||||
| PRLSVPNPWI | RSYTLAGKEE | WEVNPLYCDT | VKQIYPYNNS | QRLLNVIDMA | ||||
| IFDFLIGNMD | RHHYEMFTKF | GDDGFLIHLD | NARGFGRHSH | DEISILSPLS | ||||
| QCCMIKKKTL | LHLQLLAQAD | YRLSDVMRES | LLEDQLSPVL | TEPHLLALDR | ||||
| RLQTILRTVE | GCIVAHGQQS | VIVDGPVEQL | APDSGQANLT | S |
Funkcija
FAM20A pripada porodici evolucijski konzerviranih lučenih proteina eksprimiranih u mnogim tkivima. Ovaj lokus kodira protein koji se vjerovatno luči i može funkcionirati u hematopoezi.[7] Mutacija na ovom lokusu povezana je s bolešću amelogenesis imperfecta i sindromom hiperplazije desni (gingiva). Utvrđene su alternativno prerađene varijante transkripata. [RefSeq, avgust 2011.]
Klinički značaj
Izvješteno je da je mutacija u FAM20A povezana sa amelogenesis imperfecta, nasljednim defektom cakline i sindromom hiperplazija desni.[8]
Izvješteno je i da mutacije u FAM20A kod ljudi uzrokuju sindrom cakline i bubrega, autosomno recesivni poremećaj koji se karakterizira ozbiljnom hipoplazijom cakline, neuspjelom nicanjem zuba, intrapulpnim kalcifikacijama, povećanom gingivom i nefrokalcinozom.[9]
Reference
- ^ a b c GRCh38: Ensembl release 89: ENSG00000108950 - Ensembl, maj 2017
- ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000020614 - 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.
- ^ "Entrez Gene: family with sequence similarity 20".
- ^ "UniProt, Q96MK3". Pristupljeno 12. 9. 2017.
- ^ Nalbant D, Youn H, Nalbant SI, Sharma S, Cobos E, Beale EG, Du Y, Williams SC (2005). "FAM20: an evolutionarily conserved family of secreted proteins expressed in hematopoietic cells". BMC Genomics. 6 (1): 11. doi:10.1186/1471-2164-6-11. PMC 548683. PMID 15676076.
- ^ O'Sullivan J, Bitu CC, Daly SB, Urquhart JE, Barron MJ, Bhaskar SS, Martelli-Júnior H, dos Santos Neto PE, Mansilla MA, Murray JC, Coletta RD, Black GC, Dixon MJ (maj 2011). "Whole-Exome sequencing identifies FAM20A mutations as a cause of amelogenesis imperfecta and gingival hyperplasia syndrome". Am. J. Hum. Genet. 88 (5): 616–20. doi:10.1016/j.ajhg.2011.04.005. PMC 3146735. PMID 21549343.
- ^ Wang SK, Aref P, Hu Y, Milkovich RN, Simmer JP, El-Khateeb M, Daggag H, Baqain ZH, Hu JC (Feb 2013). "FAM20A mutations can cause enamel-renal syndrome (ERS)". PLOS Genet. 9 (2): e1003302. doi:10.1371/journal.pgen.1003302. PMC 3585120. PMID 23468644.
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