rs2952976

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001042492.3(NF1):​c.288+41G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.661 in 1,357,778 control chromosomes in the GnomAD database, including 303,792 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.57 ( 27064 hom., cov: 31)
Exomes 𝑓: 0.67 ( 276728 hom. )

Consequence

NF1
NM_001042492.3 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 0.416

Publications

19 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.88).
BP6
Variant 17-31159134-G-A is Benign according to our data. Variant chr17-31159134-G-A is described in ClinVar as Benign. ClinVar VariationId is 257283.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.698 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NF1NM_001042492.3 linkc.288+41G>A intron_variant Intron 3 of 57 ENST00000358273.9 NP_001035957.1 P21359-1
NF1NM_000267.4 linkc.288+41G>A intron_variant Intron 3 of 56 NP_000258.1 P21359-2
NF1NM_001128147.3 linkc.288+41G>A intron_variant Intron 3 of 14 NP_001121619.1 P21359-5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NF1ENST00000358273.9 linkc.288+41G>A intron_variant Intron 3 of 57 1 NM_001042492.3 ENSP00000351015.4 P21359-1

Frequencies

GnomAD3 genomes
AF:
0.570
AC:
86567
AN:
151810
Hom.:
27057
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.302
Gnomad AMI
AF:
0.720
Gnomad AMR
AF:
0.565
Gnomad ASJ
AF:
0.769
Gnomad EAS
AF:
0.561
Gnomad SAS
AF:
0.622
Gnomad FIN
AF:
0.655
Gnomad MID
AF:
0.775
Gnomad NFE
AF:
0.703
Gnomad OTH
AF:
0.629
GnomAD2 exomes
AF:
0.626
AC:
155285
AN:
247996
AF XY:
0.641
show subpopulations
Gnomad AFR exome
AF:
0.291
Gnomad AMR exome
AF:
0.507
Gnomad ASJ exome
AF:
0.777
Gnomad EAS exome
AF:
0.561
Gnomad FIN exome
AF:
0.660
Gnomad NFE exome
AF:
0.698
Gnomad OTH exome
AF:
0.672
GnomAD4 exome
AF:
0.672
AC:
810843
AN:
1205850
Hom.:
276728
Cov.:
16
AF XY:
0.674
AC XY:
412683
AN XY:
612440
show subpopulations
African (AFR)
AF:
0.291
AC:
8259
AN:
28344
American (AMR)
AF:
0.516
AC:
22754
AN:
44126
Ashkenazi Jewish (ASJ)
AF:
0.775
AC:
18978
AN:
24496
East Asian (EAS)
AF:
0.555
AC:
21233
AN:
38256
South Asian (SAS)
AF:
0.633
AC:
51211
AN:
80860
European-Finnish (FIN)
AF:
0.655
AC:
34558
AN:
52740
Middle Eastern (MID)
AF:
0.770
AC:
4038
AN:
5244
European-Non Finnish (NFE)
AF:
0.699
AC:
615168
AN:
879952
Other (OTH)
AF:
0.668
AC:
34644
AN:
51832
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
13117
26234
39352
52469
65586
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
13994
27988
41982
55976
69970
<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:
0.570
AC:
86607
AN:
151928
Hom.:
27064
Cov.:
31
AF XY:
0.567
AC XY:
42075
AN XY:
74258
show subpopulations
African (AFR)
AF:
0.303
AC:
12555
AN:
41462
American (AMR)
AF:
0.565
AC:
8620
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.769
AC:
2667
AN:
3468
East Asian (EAS)
AF:
0.560
AC:
2898
AN:
5172
South Asian (SAS)
AF:
0.620
AC:
2988
AN:
4816
European-Finnish (FIN)
AF:
0.655
AC:
6906
AN:
10540
Middle Eastern (MID)
AF:
0.772
AC:
227
AN:
294
European-Non Finnish (NFE)
AF:
0.704
AC:
47761
AN:
67890
Other (OTH)
AF:
0.630
AC:
1330
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1694
3388
5081
6775
8469
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
720
1440
2160
2880
3600
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.612
Hom.:
8817
Bravo
AF:
0.553
Asia WGS
AF:
0.578
AC:
2011
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Benign:2
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 14, 2018
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Neurofibromatosis, type 1 Benign:2
Sep 05, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 01, 2025
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Jun 20, 2018
GeneDx
Significance: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, familial spinal Benign:1
Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
12
DANN
Benign
0.52
PhyloP100
0.42
PromoterAI
0.0047
Neutral
Mutation Taster
=99/1
polymorphism (auto)

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

Other links and lift over

dbSNP: rs2952976; hg19: chr17-29486152; COSMIC: COSV62210791; API