Variant chr20-64273491-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_018257.3(PCMTD2):c.977C>T(p.Pro326Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000391 in 1,609,648 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. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

PCMTD2
NM_018257.3 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.659

Variant links:

Genes affected

PCMTD2 (HGNC:15882): (protein-L-isoaspartate (D-aspartate) O-methyltransferase domain containing 2) Predicted to enable protein-L-isoaspartate (D-aspartate) O-methyltransferase activity. Predicted to be involved in protein methylation. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

PCMTD2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.055004567).

BP6

Variant 20-64273491-C-T is Benign according to our data. Variant chr20-64273491-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3210351.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PCMTD2	NM_018257.3 linkuse as main transcript	c.977C>T	p.Pro326Leu	missense_variant	6/6	ENST00000308824.11
PCMTD2	NM_001104925.2 linkuse as main transcript	c.896C>T	p.Pro299Leu	missense_variant	6/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PCMTD2	ENST00000308824.11 linkuse as main transcript	c.977C>T	p.Pro326Leu	missense_variant	6/6	2	NM_018257.3	P1	Q9NV79-1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152128

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000655

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000284

AC:

AN:

246178

Hom.:

AF XY:

0.0000150

AC XY:

AN XY:

133342

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000209

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS 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:

0.0000357

AC:

AN:

1457520

Hom.:

Cov.:

AF XY:

0.0000317

AC XY:

AN XY:

725150

show subpopulations

Gnomad4 AFR exome

AF:

0.0000606

Gnomad4 AMR exome

AF:

0.000183

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000351

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152128

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

74330

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000110

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 02, 2024

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.055

BayesDel_addAF

Benign

-0.52

BayesDel_noAF

Benign

-0.70

CADD

Benign

0.27

DANN

Benign

0.67

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.045

LIST_S2

Benign

0.42

T;T;T;T

M_CAP

Benign

0.0039

MetaRNN

Benign

0.055

T;T;T;T

MetaSVM

Benign

-1.0

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.23

PROVEAN

Benign

0.85

N;.;N;.

REVEL

Benign

0.0090

Sift

Benign

0.32

T;.;T;.

Sift4G

Benign

0.34

T;T;T;T

Polyphen

0.0

B;.;B;.

Vest4

0.098

MutPred

0.25

.;.;Loss of glycosylation at P326 (P = 0.0286);.;

MVP

0.23

MPC

0.62

ClinPred

0.032

GERP RS

-4.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.024

gMVP

0.14

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