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GeneBe

11-19880000-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_145117.5(NAV2):c.643G>A(p.Gly215Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000083 in 1,613,540 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000088 ( 1 hom. )

Consequence

NAV2
NM_145117.5 missense

Scores

4
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.02
Variant links:
Genes affected
NAV2 (HGNC:15997): (neuron navigator 2) This gene encodes a member of the neuron navigator gene family, which may play a role in cellular growth and migration. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.01782769).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NAV2NM_145117.5 linkuse as main transcriptc.643G>A p.Gly215Arg missense_variant 5/38 ENST00000349880.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NAV2ENST00000349880.9 linkuse as main transcriptc.643G>A p.Gly215Arg missense_variant 5/381 NM_145117.5 Q8IVL1-3

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152066
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000180
AC:
45
AN:
249610
Hom.:
0
AF XY:
0.000222
AC XY:
30
AN XY:
135056
show subpopulations
Gnomad AFR exome
AF:
0.0000623
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00121
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000356
Gnomad OTH exome
AF:
0.000328
GnomAD4 exome
AF:
0.0000883
AC:
129
AN:
1461474
Hom.:
1
Cov.:
31
AF XY:
0.000128
AC XY:
93
AN XY:
727044
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00121
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000135
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152066
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74264
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000130
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.000214
AC:
26
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 06, 2021The c.643G>A (p.G215R) alteration is located in exon 5 (coding exon 5) of the NAV2 gene. This alteration results from a G to A substitution at nucleotide position 643, causing the glycine (G) at amino acid position 215 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvitySep 13, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.37
Cadd
Uncertain
24
Dann
Uncertain
1.0
Eigen
Benign
0.026
Eigen_PC
Benign
0.14
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Uncertain
0.96
D;D;D;D;D;D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.018
T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
N;N;N;N;N;N
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-1.2
N;N;.;.;N;N
REVEL
Benign
0.086
Sift
Benign
0.069
T;T;.;.;T;D
Sift4G
Benign
0.20
T;T;T;T;T;T
Polyphen
0.88
P;.;.;.;B;.
Vest4
0.38
MutPred
0.24
.;Gain of helix (P = 0.0696);Gain of helix (P = 0.0696);Gain of helix (P = 0.0696);Gain of helix (P = 0.0696);Gain of helix (P = 0.0696);
MVP
0.093
MPC
0.29
ClinPred
0.011
T
GERP RS
3.9
Varity_R
0.058
gMVP
0.65

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs750093474; hg19: chr11-19901546; API