The UMD-FBN1 mutations database
Record ID: 3358

Mutation description


Variation name (cDNA level)Variation name (protein level)Variation statusVariation class
c.8222T>Cp.Ile2741ThrHeterozygousPolymorphism

wt codonwt aamutant codonmutant aamutational eventmutation type
ATCIleACCThrT->CTs

StructureKey Residue (HCD)Pyrimidin doubletCpG
FibuCTDIII-like motif Yes, coding strandNo

Mutation impact


At the mRNA levelOn restriction map
NANew restriction site(s): none
Lost restriction site(s): Taq I

Conservation (0-1)SIFT (0-1)UMD-predictor (0-100)
0.330.41 (non pathogenous)76 (Pathogenous)

Patient and sample data


Sample IDPatient statusGenderTransmissionAge of onsetAge of deathGeographic origin
USA22DAL F0002 I0001ProbandFemaleNA10U.S.A.

Phenotypic groupDisease
NAMarfanoid Neonatal Progeroid Syndrome

Clinical data


SymptomSeverityAge
C-Asc. aortic dilatation17
C-Mitral valve prolapse17
CF-Down-slanting palpebral fissures10
CF-Proptosis17
CF-Retrognathia17
O-Astigmatism10
O-Iridodonesis17
O-Myopia >3 diopters (1)10
O-Strabismusmild17
S-Arachnodactyly (M)17
S-Joint hypermobility (m)17
S-Joint limitationsankle, knee and elbow10
S-Pectus excavatum moderate (m)(1)17
S-Plain pes planus (M)(1)17
S-Reduced extension of the elbows (<170°)(M)(1)17
S-Reduced US/LS ratio <0.87 (M)17
S-Scoliosis > 20° (M)(1)17
Se-Hearing lossmild17

Reference


Reference IDPubMed IDReference
28324665001
Garg A, Xing C. "De novo heterozygous FBN1 mutations in the extreme C-terminal region cause progeroid fibrillinopathy". Am J Med Genet A. 2014 May;164(5):1341-5.