Genetic Variant NTMT2:p.Ile91Asn (chr1-170160635-T-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001136107.2(NTMT2):c.272T>A(p.Ile91Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000322 in 1,551,270 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. 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. I91T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

NTMT2
NM_001136107.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.66

Publications

1 publications found

Variant links:

Genes affected

NTMT2 (HGNC:31932): (N-terminal Xaa-Pro-Lys N-methyltransferase 2) Enables N-terminal protein N-methyltransferase activity. Involved in N-terminal protein amino acid methylation. Located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

NTMT2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.31612366).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001136107.2. 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
	NTMT2	NM_001136107.2	MANE Select	c.272T>A	p.Ile91Asn	missense	Exon 2 of 4	NP_001129579.1	Q5VVY1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NTMT2	ENST00000439373.3	TSL:1 MANE Select	c.272T>A	p.Ile91Asn	missense	Exon 2 of 4	ENSP00000408058.3	Q5VVY1
NTMT2	ENST00000962802.1		c.272T>A	p.Ile91Asn	missense	Exon 2 of 4	ENSP00000632861.1
NTMT2	ENST00000367764.3	TSL:5	n.267T>A		non_coding_transcript_exon	Exon 2 of 5

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000639

AC:

AN:

156484

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.000125

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.15e-7

AC:

AN:

1399038

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

690000

show subpopulations

African (AFR)

AF:

0.0000317

AC:

AN:

31564

American (AMR)

AF:

0.00

AC:

AN:

35580

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25170

East Asian (EAS)

AF:

0.00

AC:

AN:

35726

South Asian (SAS)

AF:

0.00

AC:

AN:

79108

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49316

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5696

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1078880

Other (OTH)

AF:

0.00

AC:

AN:

57998

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:

0.0000263

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74372

show subpopulations

African (AFR)

AF:

0.0000965

AC:

AN:

41460

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5204

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000189

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.52

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.0030

Eigen

Uncertain

0.20

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.011

MetaRNN

Benign

0.32

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

PhyloP100

3.7

PrimateAI

Benign

0.42

PROVEAN

Benign

1.6

REVEL

Benign

0.054

Sift

Benign

0.083

Sift4G

Benign

0.48

Polyphen

0.86

Vest4

0.56

MVP

0.11

ClinPred

0.24

GERP RS

4.6

Varity_R

0.52

gMVP

0.65

Mutation Taster

=55/45

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over