rs202158964

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001042492.3(NF1):​c.6922-16A>G variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000171 in 1,612,732 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

NF1
NM_001042492.3 splice_polypyrimidine_tract, intron

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -0.416
Variant links:
Genes affected
NF1 (HGNC:7765): (neurofibromin 1) This gene product appears to function as a negative regulator of the ras signal transduction pathway. Mutations in this gene have been linked to neurofibromatosis type 1, juvenile myelomonocytic leukemia and Watson syndrome. The mRNA for this gene is subject to RNA editing (CGA>UGA->Arg1306Term) resulting in premature translation termination. Alternatively spliced transcript variants encoding different isoforms have also been described for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 17-31340489-A-G is Benign according to our data. Variant chr17-31340489-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 512282.We mark this variant Likely_benign, oryginal submissions are: {Benign=2, Uncertain_significance=1, Likely_benign=1}.
BS2
High AC in GnomAd4 at 42 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NF1NM_001042492.3 linkuse as main transcriptc.6922-16A>G splice_polypyrimidine_tract_variant, intron_variant ENST00000358273.9
NF1NM_000267.3 linkuse as main transcriptc.6859-16A>G splice_polypyrimidine_tract_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NF1ENST00000358273.9 linkuse as main transcriptc.6922-16A>G splice_polypyrimidine_tract_variant, intron_variant 1 NM_001042492.3 P1P21359-1

Frequencies

GnomAD3 genomes
AF:
0.000277
AC:
42
AN:
151552
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.0104
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000294
AC:
74
AN:
251454
Hom.:
0
AF XY:
0.000324
AC XY:
44
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00585
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000106
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000159
AC:
233
AN:
1461180
Hom.:
0
Cov.:
31
AF XY:
0.000177
AC XY:
129
AN XY:
726912
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00647
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000360
Gnomad4 OTH exome
AF:
0.000398
GnomAD4 genome
AF:
0.000277
AC:
42
AN:
151552
Hom.:
0
Cov.:
32
AF XY:
0.000270
AC XY:
20
AN XY:
74062
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.0104
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.000285
Hom.:
0
Bravo
AF:
0.000196

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Neurofibromatosis, type 1 Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitterclinical testingCenter for Human Genetics, Inc, Center for Human Genetics, IncNov 01, 2016- -
Benign, criteria provided, single submitterclinical testingInvitaeJan 31, 2024- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxSep 25, 2017This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
NF1-related disorder Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJan 27, 2023This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
0.038
DANN
Benign
0.63
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs202158964; hg19: chr17-29667507; API