The UMD-FBN1 mutations database
Record ID: 90

Mutation description


Variation name (cDNA level)Variation name (protein level)Variation statusVariation class
c.IVS18+2T>C (c.2293+2T>C)HeterozygousMutation

wt codonwt aamutant codonmutant aamutational eventmutation type
GATAspspl+2Spl.T->CTs

StructureKey Residue (HCD)Pyrimidin doubletCpG
cb EGF-like #08 Ca2+ binding

Mutation impact


At the mRNA levelOn restriction map
Skipping of exon 18, in frameNew restriction site(s): none
Lost restriction site(s): none

Impact on splicing
Splice site type Wild type sequence CV Mutant type sequence CV Variation (%)
Donor
TTGgtgaga
89.8 _
TTGgcgaga
62.9 _ *
-29.9 %

Patient and sample data


Sample IDPatient statusGenderTransmissionAge of onsetAge of deathGeographic origin
USA03STA F0005 I835ProbandNAde novo?U.S.A

Phenotypic groupDisease
Type IVIncomplete MFS

Clinical data


Symptom
C-Mitral valve prolapse
S-Arachnodactyly (M)
S-Dolichostenomelia
S-High arched palate
S-Joint hypermobility (m)

Reference


Reference IDPubMed IDReference
288894692
Liu W, Qian C, Comeau K, Brenn T, Furthmayr H, Francke U. "Mutant fibrillin-1 monomers lacking EGF-like domains disrupt microfibril assembly and cause severe marfan syndrome". Hum Mol Genet 1996 Oct;5(10):1581-7.