rs876660128

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_ModerateBP6_Very_StrongBP7BS2_Supporting

The NM_001042492.3(NF1):​c.6C>G​(p.Ala2Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000938 in 1,385,670 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 Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. A2A) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 30)
Exomes 𝑓: 0.0000094 ( 0 hom. )

Consequence

NF1
NM_001042492.3 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 1.46

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]
MIR4733HG (HGNC:55332): (MIR4733 host gene)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.4).
BP6
Variant 17-31095315-C-G is Benign according to our data. Variant chr17-31095315-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 1141694.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.46 with no splicing effect.
BS2
High AC in GnomAdExome4 at 13 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.6C>G p.Ala2Ala synonymous_variant Exon 1 of 58 ENST00000358273.9 NP_001035957.1 P21359-1
NF1NM_000267.4 linkc.6C>G p.Ala2Ala synonymous_variant Exon 1 of 57 NP_000258.1 P21359-2
NF1NM_001128147.3 linkc.6C>G p.Ala2Ala synonymous_variant Exon 1 of 15 NP_001121619.1 P21359-5
MIR4733HGNR_186435.1 linkn.176G>C non_coding_transcript_exon_variant Exon 1 of 4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NF1ENST00000358273.9 linkc.6C>G p.Ala2Ala synonymous_variant Exon 1 of 58 1 NM_001042492.3 ENSP00000351015.4 P21359-1

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD2 exomes
AF:
0.0000150
AC:
2
AN:
133584
AF XY:
0.0000138
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000938
AC:
13
AN:
1385670
Hom.:
0
Cov.:
33
AF XY:
0.0000146
AC XY:
10
AN XY:
683628
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31500
American (AMR)
AF:
0.00
AC:
0
AN:
35614
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35740
South Asian (SAS)
AF:
0.000164
AC:
13
AN:
79094
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
38686
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4100
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1078120
Other (OTH)
AF:
0.00
AC:
0
AN:
57690
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.456
Heterozygous variant carriers
0
1
2
4
5
6
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
Cov.:
30

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Neurofibromatosis, type 1 Benign:1
May 22, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome;CN230736:Cardiovascular phenotype Benign:1
May 25, 2021
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
-0.40
CADD
Benign
18
DANN
Benign
0.91
PhyloP100
1.5
PromoterAI
0.18
Neutral

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: rs876660128; hg19: chr17-29422333; API