11-71464128-G-T

Variant names:

• chr11-71464128-G-T
• rs142412970
• NM_018161.5:c.393G>T

Variant summary

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

The NM_018161.5(NADSYN1):​c.393G>T​(p.Pro131Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. P131P) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NADSYN1 NM_018161.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -4.65
• Publications: 3 publications found

Genes affected

NADSYN1 (HGNC:29832): (NAD synthetase 1) Nicotinamide adenine dinucleotide (NAD) is a coenzyme in metabolic redox reactions, a precursor for several cell signaling molecules, and a substrate for protein posttranslational modifications. NAD synthetase (EC 6.3.5.1) catalyzes the final step in the biosynthesis of NAD from nicotinic acid adenine dinucleotide (NaAD).[supplied by OMIM, Apr 2004]

NADSYN1 Gene-Disease associations (from GenCC):

• vertebral, cardiac, renal, and limb defects syndrome 3

  Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• congenital vertebral-cardiac-renal anomalies syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

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=-0.78).
• BP7: Synonymous conserved (PhyloP=-4.65 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018161.5. 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
	NADSYN1	NM_018161.5	MANE Select	c.393G>T	p.Pro131Pro	synonymous	Exon 5 of 21	NP_060631.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NADSYN1	ENST00000319023.7	TSL:1 MANE Select	c.393G>T	p.Pro131Pro	synonymous	Exon 5 of 21	ENSP00000326424.2	Q6IA69-1
	NADSYN1	ENST00000528509.5	TSL:1	n.393G>T		non_coding_transcript_exon	Exon 5 of 10	ENSP00000433472.1	E9PKY6
	NADSYN1	ENST00000859578.1		c.393G>T	p.Pro131Pro	synonymous	Exon 5 of 22	ENSP00000529637.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 1

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	0.41
DANN	Benign	0.52
PhyloP100		-4.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs142412970; hg19: chr11-71175174;