Genetic Variant ATPSCKMT:p.Arg217Leu (chr5-10227493-C-A) – 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_199133.4(ATPSCKMT):c.650G>T(p.Arg217Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000328 in 1,614,050 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

ATPSCKMT
NM_199133.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.602

Variant links:

Genes affected

ATPSCKMT (HGNC:27029): (ATP synthase c subunit lysine N-methyltransferase) Enables protein-lysine N-methyltransferase activity. Involved in peptidyl-lysine trimethylation; positive regulation of sensory perception of pain; and regulation of proton transport. Located in mitochondrial crista. [provided by Alliance of Genome Resources, Apr 2022]

ATPSCKMT links:

Genome browser will be placed here

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=0.049883842).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATPSCKMT	NM_199133.4 link	c.650G>T	p.Arg217Leu	missense_variant	Exon 5 of 5	ENST00000511437.6	NP_954584.2	Q6P4H8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ATPSCKMT	ENST00000511437.6 link	c.650G>T	p.Arg217Leu	missense_variant	Exon 5 of 5	1	NM_199133.4	ENSP00000422338.1		Q6P4H8-1

Frequencies

GnomAD3 genomes

AF:

0.0000657

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000521

AC:

AN:

249566

Hom.:

AF XY:

0.0000517

AC XY:

AN XY:

135398

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000464

Gnomad NFE exome

AF:

0.000106

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000294

AC:

AN:

1461882

Hom.:

Cov.:

AF XY:

0.0000330

AC XY:

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000562

Gnomad4 NFE exome

AF:

0.0000360

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152168

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000188

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000105

Hom.:

Bravo

AF:

0.0000151

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000363

AC:

ExAC

AF:

0.0000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 17, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.650G>T (p.R217L) alteration is located in exon 5 (coding exon 5) of the FAM173B gene. This alteration results from a G to T substitution at nucleotide position 650, causing the arginine (R) at amino acid position 217 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.72

CADD

Benign

0.23

DANN

Benign

0.86

DEOGEN2

Benign

0.0041

.;T;.

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.075

LIST_S2

Benign

0.13

T;T;T

M_CAP

Benign

0.0028

MetaRNN

Benign

0.050

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.2

.;L;.

PrimateAI

Benign

0.19

PROVEAN

Benign

-2.2

N;N;N

REVEL

Benign

0.0080

Sift

Benign

0.19

T;T;T

Sift4G

Benign

0.24

T;T;T

Polyphen

0.0

.;B;.

Vest4

0.13

MVP

0.048

MPC

0.097

ClinPred

0.043

GERP RS

-2.5

Varity_R

0.041

gMVP

0.40

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over