rs769295150

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBS2_Supporting

The NM_001042492.3(NF1):​c.1186-4A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000187 in 1,601,844 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

NF1
NM_001042492.3 splice_region, intron

Scores

2
Splicing: ADA: 0.00002600
2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -1.31

Publications

1 publications found
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]
NF1 Gene-Disease associations (from GenCC):
  • neurofibromatosis type 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia, G2P, Genomics England PanelApp
  • neurofibromatosis-Noonan syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, PanelApp Australia
  • Moyamoya disease
    Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
  • hereditary pheochromocytoma-paraganglioma
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial ovarian cancer
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 17-31201407-A-G is Benign according to our data. Variant chr17-31201407-A-G is described in ClinVar as Likely_benign. ClinVar VariationId is 412977.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAdExome4 at 28 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NF1NM_001042492.3 linkc.1186-4A>G splice_region_variant, intron_variant Intron 10 of 57 ENST00000358273.9 NP_001035957.1
NF1NM_000267.4 linkc.1186-4A>G splice_region_variant, intron_variant Intron 10 of 56 NP_000258.1
NF1NM_001128147.3 linkc.1186-4A>G splice_region_variant, intron_variant Intron 10 of 14 NP_001121619.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NF1ENST00000358273.9 linkc.1186-4A>G splice_region_variant, intron_variant Intron 10 of 57 1 NM_001042492.3 ENSP00000351015.4

Frequencies

GnomAD3 genomes
AF:
0.0000136
AC:
2
AN:
147144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000684
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000150
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000326
AC:
8
AN:
245068
AF XY:
0.0000301
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000553
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000632
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000192
AC:
28
AN:
1454700
Hom.:
0
Cov.:
30
AF XY:
0.0000207
AC XY:
15
AN XY:
723696
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33112
American (AMR)
AF:
0.00
AC:
0
AN:
44252
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26032
East Asian (EAS)
AF:
0.0000506
AC:
2
AN:
39520
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53258
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5732
European-Non Finnish (NFE)
AF:
0.0000235
AC:
26
AN:
1107844
Other (OTH)
AF:
0.00
AC:
0
AN:
60124
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000136
AC:
2
AN:
147144
Hom.:
0
Cov.:
32
AF XY:
0.0000140
AC XY:
1
AN XY:
71540
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
39780
American (AMR)
AF:
0.0000684
AC:
1
AN:
14610
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3432
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5074
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4696
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
9506
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
304
European-Non Finnish (NFE)
AF:
0.0000150
AC:
1
AN:
66814
Other (OTH)
AF:
0.00
AC:
0
AN:
2024
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000226
Hom.:
0
Bravo
AF:
0.0000227

ClinVar

Significance: Likely benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Oct 16, 2019
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Feb 05, 2018
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This 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.

Neurofibromatosis, type 1 Benign:2
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Mar 15, 2022
Genome-Nilou Lab
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Hereditary cancer-predisposing syndrome Benign:2
Oct 22, 2015
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico models in agreement (benign);Insufficient or conflicting evidence

Feb 18, 2022
Sema4, Sema4
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:curation

Hereditary cancer-predisposing syndrome;CN230736:Cardiovascular phenotype Benign:1
Dec 19, 2019
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.076
DANN
Benign
0.39
PhyloP100
-1.3
Mutation Taster
=89/11
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000026
dbscSNV1_RF
Benign
0.0060
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

Other links and lift over

dbSNP: rs769295150; hg19: chr17-29528425; API