chr12-77966309-A-G

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001024383.2(NAV3):​c.487+8A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00971 in 1,605,342 control chromosomes in the GnomAD database, including 115 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0081 ( 13 hom., cov: 33)
Exomes 𝑓: 0.0099 ( 102 hom. )

Consequence

NAV3
NM_001024383.2 splice_region, intron

Scores

2
Splicing: ADA: 0.0001151
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.929
Variant links:
Genes affected
NAV3 (HGNC:15998): (neuron navigator 3) This gene belongs to the neuron navigator family and is expressed predominantly in the nervous system. The encoded protein contains coiled-coil domains and a conserved AAA domain characteristic for ATPases associated with a variety of cellular activities. This gene is similar to unc-53, a Caenorhabditis elegans gene involved in axon guidance. Multiple alternatively spliced transcript variants for this gene have been described but only one has had its full-length nature determined. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 12-77966309-A-G is Benign according to our data. Variant chr12-77966309-A-G is described in ClinVar as [Benign]. Clinvar id is 774821.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High Homozygotes in GnomAd4 at 13 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NAV3NM_001024383.2 linkuse as main transcriptc.487+8A>G splice_region_variant, intron_variant ENST00000397909.7 NP_001019554.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NAV3ENST00000397909.7 linkuse as main transcriptc.487+8A>G splice_region_variant, intron_variant 1 NM_001024383.2 ENSP00000381007 Q8IVL0-1

Frequencies

GnomAD3 genomes
AF:
0.00809
AC:
1231
AN:
152164
Hom.:
13
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00186
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00459
Gnomad ASJ
AF:
0.00923
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.0147
Gnomad FIN
AF:
0.0277
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.00987
Gnomad OTH
AF:
0.00575
GnomAD3 exomes
AF:
0.00924
AC:
2256
AN:
244214
Hom.:
20
AF XY:
0.00960
AC XY:
1269
AN XY:
132178
show subpopulations
Gnomad AFR exome
AF:
0.00123
Gnomad AMR exome
AF:
0.00301
Gnomad ASJ exome
AF:
0.0106
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0147
Gnomad FIN exome
AF:
0.0263
Gnomad NFE exome
AF:
0.00876
Gnomad OTH exome
AF:
0.0111
GnomAD4 exome
AF:
0.00988
AC:
14358
AN:
1453060
Hom.:
102
Cov.:
28
AF XY:
0.0103
AC XY:
7439
AN XY:
722804
show subpopulations
Gnomad4 AFR exome
AF:
0.00118
Gnomad4 AMR exome
AF:
0.00250
Gnomad4 ASJ exome
AF:
0.0107
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0148
Gnomad4 FIN exome
AF:
0.0265
Gnomad4 NFE exome
AF:
0.00962
Gnomad4 OTH exome
AF:
0.00881
GnomAD4 genome
AF:
0.00809
AC:
1232
AN:
152282
Hom.:
13
Cov.:
33
AF XY:
0.00907
AC XY:
675
AN XY:
74456
show subpopulations
Gnomad4 AFR
AF:
0.00185
Gnomad4 AMR
AF:
0.00458
Gnomad4 ASJ
AF:
0.00923
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.0149
Gnomad4 FIN
AF:
0.0277
Gnomad4 NFE
AF:
0.00987
Gnomad4 OTH
AF:
0.00569
Alfa
AF:
0.00966
Hom.:
4
Bravo
AF:
0.00580
Asia WGS
AF:
0.00462
AC:
16
AN:
3476

ClinVar

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

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJun 08, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
6.0
DANN
Benign
0.77

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00012
dbscSNV1_RF
Benign
0.0020
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: rs118149283; hg19: chr12-78360089; API