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. The variant received -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. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). 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

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.384

Publications

0 publications found

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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03675255).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_198571.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NAT16	NM_198571.3	MANE Select	c.749G>C	p.Arg250Pro	missense	Exon 4 of 4	NP_940973.2	Q8N8M0-1
NAT16	NM_001369694.1		c.749G>C	p.Arg250Pro	missense	Exon 5 of 5	NP_001356623.1	Q8N8M0-1
NAT16	NM_001369695.1		c.749G>C	p.Arg250Pro	missense	Exon 4 of 4	NP_001356624.1	Q8N8M0-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NAT16	ENST00000300303.7	TSL:2 MANE Select	c.749G>C	p.Arg250Pro	missense	Exon 4 of 4	ENSP00000300303.2	Q8N8M0-1
	NAT16	ENST00000455377.5	TSL:1	c.749G>C	p.Arg250Pro	missense	Exon 5 of 5	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

GnomAD2 exomes

AF:

0.00000922

AC:

AN:

216850

AF XY:

0.00000835

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 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

African (AFR)

AF:

0.00

AC:

AN:

33124

American (AMR)

AF:

0.00

AC:

AN:

43302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25838

East Asian (EAS)

AF:

0.0000511

AC:

AN:

39116

South Asian (SAS)

AF:

0.0000118

AC:

AN:

84748

European-Finnish (FIN)

AF:

0.00

AC:

AN:

46260

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.00000271

AC:

AN:

1107326

Other (OTH)

AF:

0.0000167

AC:

AN:

59802

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152286

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74464

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41570

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000387

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68004

Other (OTH)

AF:

0.00

AC:

AN:

2114

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.00000000770867), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

ExAC

AF:

0.00000834

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.53

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.51

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.020

Eigen

Benign

-0.85

Eigen_PC

Benign

-0.87

FATHMM_MKL

Benign

0.53

LIST_S2

Benign

0.79

M_CAP

Benign

0.0058

MetaRNN

Benign

0.037

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.1

PhyloP100

0.38

PrimateAI

Benign

0.38

PROVEAN

Benign

-1.4

REVEL

Benign

0.051

Sift

Benign

0.067

Sift4G

Uncertain

0.024

Polyphen

0.0060

Vest4

0.38

MutPred

0.35

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

Mutation Taster

=86/14

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over