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GeneBe

17-31225111-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 5P and 2B. PM1PM2PP2BP4_Moderate

The NM_001042492.3(NF1):c.1862C>G(p.Ser621Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,410 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S621F) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NF1
NM_001042492.3 missense

Scores

1
7
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.76
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 13 uncertain in NM_001042492.3
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, NF1
BP4
Computational evidence support a benign effect (MetaRNN=0.2417346).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NF1NM_001042492.3 linkuse as main transcriptc.1862C>G p.Ser621Cys missense_variant 17/58 ENST00000358273.9
NF1NM_000267.3 linkuse as main transcriptc.1862C>G p.Ser621Cys missense_variant 17/57

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NF1ENST00000358273.9 linkuse as main transcriptc.1862C>G p.Ser621Cys missense_variant 17/581 NM_001042492.3 P1P21359-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251150
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135752
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461410
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727010
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.011
T
BayesDel_noAF
Benign
-0.25
Cadd
Uncertain
24
Dann
Uncertain
0.98
DEOGEN2
Uncertain
0.46
T;.;T
Eigen
Uncertain
0.27
Eigen_PC
Uncertain
0.39
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.92
D;D;D
M_CAP
Uncertain
0.27
D
MetaRNN
Benign
0.24
T;T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
0.69
N;N;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-0.77
N;N;N
REVEL
Benign
0.098
Sift
Uncertain
0.0020
D;D;D
Sift4G
Benign
0.16
T;T;T
Polyphen
0.0
B;D;.
Vest4
0.79
MutPred
0.39
Loss of disorder (P = 0.0404);Loss of disorder (P = 0.0404);.;
MVP
0.46
MPC
0.67
ClinPred
0.56
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.18
gMVP
0.39

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: rs760346063; hg19: chr17-29552129; API