17-44905727-G-A
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Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1
The NM_002055.5(GFAP):c.*1620C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.107 in 156,562 control chromosomes in the GnomAD database, including 913 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.11 ( 886 hom., cov: 33)
Exomes 𝑓: 0.099 ( 27 hom. )
Consequence
GFAP
NM_002055.5 3_prime_UTR
NM_002055.5 3_prime_UTR
Scores
2
Clinical Significance
Conservation
PhyloP100: 0.328
Genes affected
GFAP (HGNC:4235): (glial fibrillary acidic protein) This gene encodes one of the major intermediate filament proteins of mature astrocytes. It is used as a marker to distinguish astrocytes from other glial cells during development. Mutations in this gene cause Alexander disease, a rare disorder of astrocytes in the central nervous system. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Oct 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -20 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.66).
BP6
Variant 17-44905727-G-A is Benign according to our data. Variant chr17-44905727-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 369148.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.113 is higher than 0.05.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GFAP | NM_002055.5 | c.*1620C>T | 3_prime_UTR_variant | 9/9 | ENST00000588735.3 | ||
GFAP | NM_001363846.2 | c.*1620C>T | 3_prime_UTR_variant | 10/10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GFAP | ENST00000588735.3 | c.*1620C>T | 3_prime_UTR_variant | 9/9 | 1 | NM_002055.5 | P1 |
Frequencies
GnomAD3 genomes AF: 0.108 AC: 16370AN: 152114Hom.: 888 Cov.: 33
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GnomAD4 exome AF: 0.0986 AC: 427AN: 4330Hom.: 27 Cov.: 0 AF XY: 0.100 AC XY: 296AN XY: 2950
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GnomAD4 genome AF: 0.108 AC: 16370AN: 152232Hom.: 886 Cov.: 33 AF XY: 0.106 AC XY: 7856AN XY: 74436
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ClinVar
Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Primary ciliary dyskinesia Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jun 14, 2016 | - - |
Computational scores
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Benign
CADD
Benign
DANN
Benign
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at