NM_001113226.3:c.381C>T

Variant names:

• chr1-107324416-C-T
• rs143347360
• NM_001113226.3:c.381C>T

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_001113226.3(NTNG1):​c.381C>T​(p.Pro127Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 152,060 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. P127P) has been classified as Benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: NTNG1 NM_001113226.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.127
• Publications: 1 publications found

Genes affected

NTNG1 (HGNC:23319): (netrin G1) This gene encodes a preproprotein that is processed into a secreted protein containing eukaroytic growth factor (EGF)-like domains. This protein acts to guide axon growth during neuronal development. Polymorphisms in this gene may be associated with schizophrenia. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Aug 2015]

NTNG1 Gene-Disease associations (from GenCC):

• atypical Rett syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• syndromic intellectual disability

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• complex neurodevelopmental disorder

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.41).
• BP7: Synonymous conserved (PhyloP=0.127 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001113226.3. 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
	NTNG1	NM_001113226.3	MANE Select	c.381C>T	p.Pro127Pro	synonymous	Exon 3 of 8	NP_001106697.1	Q9Y2I2-3
	NTNG1	NM_001372167.1		c.381C>T	p.Pro127Pro	synonymous	Exon 3 of 8	NP_001359096.1	Q9Y2I2-3
	NTNG1	NM_001372170.1		c.381C>T	p.Pro127Pro	synonymous	Exon 3 of 8	NP_001359099.1	Q9Y2I2-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NTNG1	ENST00000370068.6	TSL:5 MANE Select	c.381C>T	p.Pro127Pro	synonymous	Exon 3 of 8	ENSP00000359085.1	Q9Y2I2-3
	NTNG1	ENST00000370066.5	TSL:1	c.381C>T	p.Pro127Pro	synonymous	Exon 2 of 7	ENSP00000359083.1	Q9Y2I2-4
	NTNG1	ENST00000370074.8	TSL:1	c.381C>T	p.Pro127Pro	synonymous	Exon 3 of 6	ENSP00000359091.3	Q9Y2I2-1

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152060 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 33

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152060 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74282

African (AFR) AF: 0.00 AC: 0 AN: 41424

American (AMR) AF: 0.00 AC: 0 AN: 15230

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5168

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68000

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.41
CADD	Benign	10
DANN	Benign	0.63
PhyloP100		0.13
Mutation Taster		=90/10	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: rs143347360; hg19: chr1-107867038;