Genetic Variant NTN1:p.Arg211Gly (chr17-9023004-C-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_004822.3(NTN1):c.631C>G(p.Arg211Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000687 in 1,454,922 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict 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. R211S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

NTN1
NM_004822.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.36

Publications

0 publications found

Variant links:

Genes affected

NTN1 (HGNC:8029): (netrin 1) Netrin is included in a family of laminin-related secreted proteins. The function of this gene has not yet been defined; however, netrin is thought to be involved in axon guidance and cell migration during development. Mutations and loss of expression of netrin suggest that variation in netrin may be involved in cancer development. [provided by RefSeq, Jul 2008]

NTN1 Gene-Disease associations (from GenCC):

mirror movements 4
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
familial congenital mirror movements
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
multiple congenital anomalies/dysmorphic syndrome
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

NTN1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.29194838).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NTN1	NM_004822.3 link	c.631C>G	p.Arg211Gly	missense_variant	Exon 2 of 7	ENST00000173229.7	NP_004813.2	O95631
NTN1	XM_006721595.4 link	c.631C>G	p.Arg211Gly	missense_variant	Exon 2 of 7		XP_006721658.1	O95631
NTN1	XM_047437096.1 link	c.631C>G	p.Arg211Gly	missense_variant	Exon 2 of 7		XP_047293052.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NTN1	ENST00000173229.7 link	c.631C>G	p.Arg211Gly	missense_variant	Exon 2 of 7	1	NM_004822.3	ENSP00000173229.2		O95631

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.87e-7

AC:

AN:

1454922

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

723420

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33318

American (AMR)

AF:

0.00

AC:

AN:

44090

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25978

East Asian (EAS)

AF:

0.00

AC:

AN:

39346

South Asian (SAS)

AF:

0.00

AC:

AN:

85446

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51070

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

9.01e-7

AC:

AN:

1109810

Other (OTH)

AF:

0.00

AC:

AN:

60104

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.022

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.32

Eigen

Benign

-0.37

Eigen_PC

Benign

-0.18

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.90

M_CAP

Benign

0.030

MetaRNN

Benign

0.29

MetaSVM

Benign

-0.82

MutationAssessor

Benign

0.62

PhyloP100

1.4

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-0.49

REVEL

Benign

0.18

Sift

Benign

0.59

Sift4G

Benign

0.49

Polyphen

0.0

Vest4

0.45

MutPred

0.59

Loss of stability (P = 0.0469);

MVP

0.69

ClinPred

0.37

GERP RS

4.0

Varity_R

0.40

gMVP

0.58

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over