Variant chr17-44905727-G-A details in Genebe, Genetics Data Aggregator

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

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.328

Variant links:

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]

GFAP links:

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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	Protein	UniProt
GFAP	NM_002055.5 linkuse as main transcript	c.*1620C>T		3_prime_UTR_variant	9/9	ENST00000588735.3	NP_002046.1
GFAP	NM_001363846.2 linkuse as main transcript	c.*1620C>T		3_prime_UTR_variant	10/10		NP_001350775.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GFAP	ENST00000588735.3 linkuse as main transcript	c.*1620C>T		3_prime_UTR_variant	9/9	1	NM_002055.5	ENSP00000466598	P1	P14136-1

Frequencies

GnomAD3 genomes

AF:

0.108

AC:

16370

AN:

152114

Hom.:

888

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0954

Gnomad AMI

AF:

0.111

Gnomad AMR

AF:

0.105

Gnomad ASJ

AF:

0.171

Gnomad EAS

AF:

0.0897

Gnomad SAS

AF:

0.115

Gnomad FIN

AF:

0.0852

Gnomad MID

AF:

0.253

Gnomad NFE

AF:

0.115

Gnomad OTH

AF:

0.131

GnomAD4 exome

AF:

0.0986

AC:

427

AN:

4330

Hom.:

Cov.:

AF XY:

0.100

AC XY:

296

AN XY:

2950

show subpopulations

Gnomad4 AFR exome

AF:

0.0658

Gnomad4 AMR exome

AF:

0.0543

Gnomad4 ASJ exome

AF:

0.250

Gnomad4 EAS exome

AF:

0.0735

Gnomad4 SAS exome

AF:

0.101

Gnomad4 FIN exome

AF:

0.0667

Gnomad4 NFE exome

AF:

0.100

Gnomad4 OTH exome

AF:

0.114

GnomAD4 genome

AF:

0.108

AC:

16370

AN:

152232

Hom.:

886

Cov.:

AF XY:

0.106

AC XY:

7856

AN XY:

74436

show subpopulations

Gnomad4 AFR

AF:

0.0953

Gnomad4 AMR

AF:

0.105

Gnomad4 ASJ

AF:

0.171

Gnomad4 EAS

AF:

0.0897

Gnomad4 SAS

AF:

0.115

Gnomad4 FIN

AF:

0.0852

Gnomad4 NFE

AF:

0.115

Gnomad4 OTH

AF:

0.130

Alfa

AF:

0.109

Hom.:

136

Bravo

AF:

0.109

Asia WGS

AF:

0.102

AC:

356

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

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

- -

not provided

Benign:1

Likely benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.66

CADD

Benign

8.5

DANN

Benign

0.79

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over