Genetic Variant NM_198571.3:c.749G>C (chr7-101172440-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

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

The NM_198571.3(NAT16):c.749G>C(p.Arg250Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000563 in 1,597,554 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R250Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

NAT16
NM_198571.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.384

Variant links:

Genes affected

NAT16 (HGNC:22030): (N-acetyltransferase 16 (putative)) Predicted to enable acyltransferase activity, transferring groups other than amino-acyl groups. [provided by Alliance of Genome Resources, Apr 2022]

NAT16 links:

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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=0.03675255).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NAT16	NM_198571.3 link	c.749G>C	p.Arg250Pro	missense_variant	Exon 4 of 4	ENST00000300303.7	NP_940973.2	Q8N8M0-1
NAT16	NM_001369694.1 link	c.749G>C	p.Arg250Pro	missense_variant	Exon 5 of 5		NP_001356623.1
NAT16	NM_001369695.1 link	c.749G>C	p.Arg250Pro	missense_variant	Exon 4 of 4		NP_001356624.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NAT16	ENST00000300303.7 link	c.749G>C	p.Arg250Pro	missense_variant	Exon 4 of 4	2	NM_198571.3	ENSP00000300303.2		Q8N8M0-1
NAT16	ENST00000455377.5 link	c.749G>C	p.Arg250Pro	missense_variant	Exon 5 of 5	1		ENSP00000395125.1		Q8N8M0-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152168

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000386

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000922

AC:

AN:

216850

Hom.:

AF XY:

0.00000835

AC XY:

AN XY:

119782

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000600

Gnomad SAS exome

AF:

0.0000349

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000484

AC:

AN:

1445268

Hom.:

Cov.:

AF XY:

0.00000417

AC XY:

AN XY:

718680

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000511

Gnomad4 SAS exome

AF:

0.0000118

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000271

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152286

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000387

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000834

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.53

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.51

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.020

T;T

Eigen

Benign

-0.85

Eigen_PC

Benign

-0.87

FATHMM_MKL

Benign

0.53

LIST_S2

Benign

0.79

.;T

M_CAP

Benign

0.0058

MetaRNN

Benign

0.037

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.1

L;L

PrimateAI

Benign

0.38

PROVEAN

Benign

-1.4

N;N

REVEL

Benign

0.051

Sift

Benign

0.067

T;T

Sift4G

Uncertain

0.024

D;D

Polyphen

0.0060

B;B

Vest4

0.38

MutPred

0.35

Gain of glycosylation at R250 (P = 0.009);Gain of glycosylation at R250 (P = 0.009);

MVP

0.048

MPC

1.4

ClinPred

0.44

GERP RS

-4.8

Varity_R

0.28

gMVP

0.65

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over