1-201649136-C-G

Variant names:

• chr1-201649136-C-G
• rs1267119
• NM_001389617.1:c.1329C>G

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001389617.1(NAV1):​c.1329C>G​(p.Gly443Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,408 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. Synonymous variant affecting the same amino acid position (i.e. G443G) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: NAV1 NM_001389617.1 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.488
• Publications: 0 publications found

Genes affected

NAV1 (HGNC:15989): (neuron navigator 1) 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. The exact function of this gene is not known, but it is thought to play a role in in neuronal development and regeneration. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2009]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.68).
• BP7: Synonymous conserved (PhyloP=0.488 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001389617.1. 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
	NAV1	NM_001389617.1	MANE Select	c.1329C>G	p.Gly443Gly	synonymous	Exon 5 of 34	NP_001376546.1	A0A8I5KSE4
	NAV1	NM_001389616.1		c.1329C>G	p.Gly443Gly	synonymous	Exon 4 of 32	NP_001376545.1
	NAV1	NM_001389615.1		c.1329C>G	p.Gly443Gly	synonymous	Exon 5 of 31	NP_001376544.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NAV1	ENST00000685211.1	MANE Select	c.1329C>G	p.Gly443Gly	synonymous	Exon 5 of 34	ENSP00000510803.1	A0A8I5KSE4
	NAV1	ENST00000367296.8	TSL:5	c.468C>G	p.Gly156Gly	synonymous	Exon 1 of 30	ENSP00000356265.4	Q8NEY1-1
	NAV1	ENST00000367302.5	TSL:5	c.507C>G	p.Gly169Gly	synonymous	Exon 3 of 30	ENSP00000356271.1	A0A0A0MRJ3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459408 Hom.: 0 Cov.: 59 AF XY: 0.00 AC XY: 0 AN XY: 725906

African (AFR) AF: 0.00 AC: 0 AN: 33458

American (AMR) AF: 0.00 AC: 0 AN: 44590

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26076

East Asian (EAS) AF: 0.00 AC: 0 AN: 39654

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86088

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52246

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111274

Other (OTH) AF: 0.00 AC: 0 AN: 60256

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.68
CADD	Benign	9.3
DANN	Benign	0.76
PhyloP100		0.49
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs1267119; hg19: chr1-201618264;