In the following article1, the authors would like to correct several inaccuracies in the Table 1, 2 and the supplementary figure.
In the RESULTS on page 708, we stated that “Among the 170 probands, we detected 45 known mutations and three novel variants.” Actually, there were several inaccuracies in describing the mutations in table 2.
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1
c.351C>T (p.Cys117Trp)
Actually, the mutation was NM_000435.2: c.351C>G. Please see the chromatogram below. It was a novel mutation. According to 2015 ACMG guideline, it was defined as “pathogenic”. (PS1+PM1+PM2+PP3+PP4)
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2
c.719G>A (p.Cys240Ser)
Actually, the mutation was NM_000435.2: c.719G>A (p.Cys240Tyr). Please see the chromatogram below. It was a novel mutation. According to 2015 ACMG guideline, it was defined as “pathogenic”. (PS1+PM1+PM2+PP3+PP4)
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3
c.1339C>T (p.Arg421Cys)
Actually, the mutation was NM_000435.2: c.1261C>T (p.Arg421Cys). Please see the chromatogram below.
Besides, we only stated 3 novel variants, and confirmed one as “likely pathogenic”. Actually, we were misled by the description on the MutationTaster which told us such mutation was known mutation at this position. (Please see the screenshot below, which was the description of NM_000435.2: c.322T>G p. Cys108Gly predicted by MutationTaster.) However, the recognition of novel mutations was mainly performed between May 4, 2009, and March 6, 2016, during which time we did not obtain the access to the HGMD professional.
After carefully check using the HGMD professional database, we confirm other 10 novel mutations.
The corrected Tables 1, 2 and supplementary figure are provided below,
Table 1.
Novel variants in Chinese patients with CADASIL
Patients/Gender | AAO | Manifestations | Family history | Nucleotide alteration | Protein alteration | SIFT | Polyphen‐2 | 1000g | ExAC | Variants classificationa , b |
---|---|---|---|---|---|---|---|---|---|---|
1/F | 56 | Ischemic stroke, cognitive impairment, mood disturbance | Yes | c.198‐1G>A | – | – | – | 0 | 0 | Likely Pathogenic |
2/F | 43 | Headache, dizziness, cognitive impairment | Yes | c.945delC | Ile315Metfs*57 | – | – | 0 | 0 | Likely Benign |
3/F | 40 | Migraine, ischemic stroke, cognitive impairment | Yes | c.1817G>T | Cys606Phe | Damaging | Probably damaging | 0 | 0 | Pathogenic |
4/M | 55 | Headache | Yes | c.2656C>T | Arg886Cys | Tolerated | Possibly damaging | 0 | 0 | Uncertain |
5/M | 57 | cognitive impairment, behavior abnormality | Yes | c.602G>C | Cys201Ser | Damaging | Probably damaging | 0 | 0 | Pathogenic |
6/M | 41 | Ischemic stroke, cognitive impairment, mood disturbance | Yes | c.665G>T | Cys222Phe | Damaging | Probably damaging | 0 | 0 | Pathogenic |
7/M | 57 | Ischemic stroke | No | c.1646G>C | Cys549Ser | Damaging | Probably damaging | 0 | 0 | Pathogenic |
8/M | 50 | Headache | Yes | c.322T>G | Cys108Gly | Damaging | Probably damaging | 0 | 0 | Pathogenic |
9/M | 35 | Ischemic stroke | No | c.719G>A | Cys240Tyr | Damaging | Probably damaging | 0 | 0 | Pathogenic |
10/F | 49 | Ischemic stroke, cognitive impairment, mood disturbance | No | c.351C>G | Cys117Trp | Damaging | Probably damaging | 0 | 0 | Pathogenic |
11/M | 36 | Headache, dizziness, Ischemic stroke, ICH, cognitive impairment | Yes | c.1677C>G | Cys559Trp | Damaging | Probably damaging | 0 | 0 | Pathogenic |
12/M | 47 | cognitive impairment, mood disturbance | Yes | c.128G>A | Cys43Tyr | Damaging | Possibly damaging | 0 | 0 | Likely Pathogenic |
AAO, Age at onset; AA, Amino Acid; 1000g, 1000 Genomes Project database; ExAC, Exome Aggregation Consortium database; ICH, Intracranial hemorrhage.
Richards S, Aziz N, Bale S, et al. Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology. Genet Med. 2015;17:405‐424.
Rutten JW, Haan J, Terwindt GM, et al. Interpretation of NOTCH3 mutations in the diagnosis of CADASIL. Expert Rev Mol Diagn. 2014;14:593‐603.
Table 2.
Mutations identified in CADASIL patients in the current study
Exon | Nucleotide alteration | Protein alteration | EGF repeat | Number of pedigrees | Frequency of mutations (%) |
---|---|---|---|---|---|
Exon 2 | c.128G>A | p.Cys43Tyr | 1 | 1 | 0.60 |
Exon 3 | c.213G>T | p.Trp71Cys | 1 | 1 | 0.60 |
c.268C>T | p.Arg90Cys | 2 | 15 | 8.93 | |
c.322T>G | p.Cys108Gly | 2 | 1 | 0.60 | |
c.328C>T | p.Arg110Cys | 2 | 6 | 3.57 | |
Exon 4 | c.351C>G | p.Cys117Trp | 2 | 1 | 0.60 |
c.397C>T | p.Arg133Cys | 3 | 3 | 1.79 | |
c.401G>A | p.Cys134Tyr | 3 | 1 | 0.60 | |
c.421C>T | p.Arg141Cys | 3 | 8 | 4.76 | |
c.430T>A | p.Cys144Ser | 3 | 1 | 0.60 | |
c.457C>T | p.Arg153Cys | 3 | 11 | 6.55 | |
c.465C>G | p.Cys155Trp | 3 | 1 | 0.60 | |
c.505C>T | p.Arg169Cys | 4 | 14 | 8.33 | |
c.511G>T | p.Gly171Cys | 4 | 1 | 0.60 | |
c.544C>T | p.Arg182Cys | 4 | 6 | 3.57 | |
c.566A>G | p.Tyr189Cys | 4 | 1 | 0.60 | |
c.580T>A | p.Cys194Ser | 4 | 1 | 0.60 | |
c.580T>C | p.Cys194Arg | 4 | 1 | 0.60 | |
c.581G>A | p.Cys194Tyr | 4 | 3 | 1.79 | |
c.602G>C | p.Cys201Ser | 5 | 1 | 0.60 | |
c.636C>G | p.Cys212Trp | 5 | 1 | 0.60 | |
c.665G>T | p.Cys222Phe | 5 | 1 | 0.60 | |
Exon 5 | c.697T>C | p.Cys233Arg | 5 | 1 | 0.60 |
c.719G>A | p.Cys240Tyr | 6 | 1 | 0.60 | |
c.751T>C | p.Cys251Arg | 6 | 1 | 0.60 | |
c.752G>A | p.Cys251Tyr | 6 | 1 | 0.60 | |
c.773A>G | p.Tyr258Cys | 6 | 1 | 0.60 | |
c.779G>T | p.Cys260Phe | 6 | 1 | 0.60 | |
Exon 6 | c.994C>T | p.Arg332Cys | 8 | 4 | 2.38 |
c.1010A>G | p.Tyr337Cys | 8 | 1 | 0.60 | |
Exon 8 | c.1261C>T | p.Arg421Cys | 10 | 1 | 0.60 |
Exon 11 | c.1625G>A | p.Cys542Tyr | 13 | 1 | 0.60 |
c.1630C>T | p.Arg544Cys | 13/14 | 26 | 15.48 | |
c.1646G>C | p.Cys549Ser | 14 | 1 | 0.60 | |
c.1672C>T | p.Arg558Cys | 14 | 1 | 0.60 | |
c.1677C>G | p.Cys559Trp | 14 | 1 | 0.60 | |
c.1759C>T | p.Arg587Cys | 15 | 5 | 2.98 | |
c.1817G>T | p.Cys606Phe | 15 | 2 | 1.19 | |
c.1819C>T | p.Arg607Cys | 15 | 32 | 19.05 | |
Exon 12 | c.1918C>T | p.Arg640Cys | 16 | 1 | 0.60 |
c.2038C>T | p.Arg680Cys | 17 | 1 | 0.60 | |
Exon 17 | c.2656C>T | p.Arg886Cys | 22/23 | 1 | 0.60 |
Exon 18 | c.2929T>A | p.Cys977Ser | 25 | 1 | 0.60 |
c.2951T>G | p.Phe984Cys | 25 | 1 | 0.60 | |
c.2963G>A | p.Cys988Tyr | 25 | 1 | 0.60 | |
Exon19 | c.3091C>T | p.Arg1031Cys | 26 | 1 | 0.60 |
EGF, Epidermal growth factor.
Supplementary Figure:
The authors apologize for the error.
Supporting information
REFERENCE
- 1. Chen S, Ni W, Yin XZ, et al. Clinical features and mutation spectrum in Chinese patients with CADASIL: A multicenter retrospective study. CNS Neurosci Ther. 2017;23:707‐716. [DOI] [PMC free article] [PubMed] [Google Scholar]
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