17-31325866-T-C

Variant names:

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.4882T>C(p.Leu1628Leu) variant causes a synonymous change. The variant allele was found at a frequency of 0.00384 in 1,614,208 control chromosomes in the GnomAD database, including 238 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. L1628L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.021 ( 133 hom., cov: 32)

Exomes 𝑓: 0.0021 ( 105 hom. )

Consequence

NF1
NM_001042492.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:20

Conservation

PhyloP100: 3.59

Publications

10 publications found

Variant links:

COSMIC-nc: COSV55986963

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: ClinGen, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp
neurofibromatosis-Noonan syndrome
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp
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: Unknown Classification: NO_KNOWN Submitted by: ClinGen

NF1 links:

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=-0.52).

BP6

Variant 17-31325866-T-C is Benign according to our data. Variant chr17-31325866-T-C is described in ClinVar as Benign. ClinVar VariationId is 184058.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0698 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001042492.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NF1	NM_001042492.3	MANE Select	c.4882T>C	p.Leu1628Leu	synonymous	Exon 37 of 58	NP_001035957.1	P21359-1
	NF1	NM_000267.4		c.4819T>C	p.Leu1607Leu	synonymous	Exon 36 of 57	NP_000258.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NF1	ENST00000358273.9	TSL:1 MANE Select	c.4882T>C	p.Leu1628Leu	synonymous	Exon 37 of 58	ENSP00000351015.4	P21359-1
NF1	ENST00000356175.7	TSL:1	c.4819T>C	p.Leu1607Leu	synonymous	Exon 36 of 57	ENSP00000348498.3	P21359-2
NF1	ENST00000579081.6	TSL:1	n.*47T>C		non_coding_transcript_exon	Exon 37 of 58	ENSP00000462408.2	J3KSB5

Frequencies

GnomAD3 genomes

AF:

0.0209

AC:

3175

AN:

152238

Hom.:

133

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0720

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00857

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000338

Gnomad OTH

AF:

0.0153

GnomAD2 exomes

AF:

0.00547

AC:

1375

AN:

251216

AF XY:

0.00400

show subpopulations

Gnomad AFR exome

AF:

0.0735

Gnomad AMR exome

AF:

0.00396

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000229

Gnomad OTH exome

AF:

0.00261

GnomAD4 exome

AF:

0.00206

AC:

3013

AN:

1461852

Hom.:

105

Cov.:

AF XY:

0.00181

AC XY:

1318

AN XY:

727222

show subpopulations

African (AFR)

AF:

0.0720

AC:

2411

AN:

33474

American (AMR)

AF:

0.00449

AC:

201

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000927

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00364

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000104

AC:

116

AN:

1111988

Other (OTH)

AF:

0.00422

AC:

255

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

168

336

504

672

840

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

164

246

328

410

<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:

0.0209

AC:

3182

AN:

152356

Hom.:

133

Cov.:

AF XY:

0.0197

AC XY:

1470

AN XY:

74500

show subpopulations

African (AFR)

AF:

0.0720

AC:

2992

AN:

41574

American (AMR)

AF:

0.00856

AC:

131

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.000414

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000338

AC:

AN:

68038

Other (OTH)

AF:

0.0151

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

157

314

472

629

786

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

102

136

170

<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:

0.00998

Hom.:

Bravo

AF:

0.0231

Asia WGS

AF:

0.00549

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000356

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Neurofibromatosis, type 1 (5)

not provided (5)

not specified (4)

Café-au-lait macules with pulmonary stenosis (1)

Hereditary cancer-predisposing syndrome (1)

Hereditary cancer-predisposing syndrome;CN230736:Cardiovascular phenotype (1)

Neurofibromatosis-Noonan syndrome (1)

Neurofibromatosis, familial spinal (1)

Neurofibromatosis, type 1;C0349639:Juvenile myelomonocytic leukemia;C0553586:Café-au-lait macules with pulmonary stenosis;C1834235:Neurofibromatosis, familial spinal;C2931482:Neurofibromatosis-Noonan syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.52

CADD

Benign

7.8

(source)

DANN

Benign

0.77

PhyloP100

3.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=100/0

polymorphism (auto)

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over