chr1-160030877-A-G

Position:

chr1-160030877-A-G

Variant summary

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

The NM_145167.3(PIGM):c.863T>C(p.Phe288Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000481 in 1,614,142 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00049 ( 0 hom. )

Consequence

PIGM
NM_145167.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.28

Variant links:

Genes affected

PIGM (HGNC:18858): (phosphatidylinositol glycan anchor biosynthesis class M) This gene encodes a transmembrane protein that is located in the endoplasmic reticulum and is involved in GPI-anchor biosynthesis. The glycosylphosphatidylinositol (GPI)-anchor is a glycolipid which contains three mannose molecules in its core backbone. The GPI-anchor is found on many blood cells and serves to anchor proteins to the cell surface. This gene encodes a mannosyltransferase, GPI-MT-I, that transfers the first mannose to GPI on the lumenal side of the endoplasmic reticulum. [provided by RefSeq, Jul 2008]

PIGM links:

KCNJ10 (HGNC:6256): (potassium inwardly rectifying channel subfamily J member 10) This gene encodes a member of the inward rectifier-type potassium channel family, characterized by having a greater tendency to allow potassium to flow into, rather than out of, a cell. The encoded protein may form a heterodimer with another potassium channel protein and may be responsible for the potassium buffering action of glial cells in the brain. Mutations in this gene have been associated with seizure susceptibility of common idiopathic generalized epilepsy syndromes. [provided by RefSeq, Jul 2008]

KCNJ10 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=0.066688955).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PIGM	NM_145167.3 linkuse as main transcript	c.863T>C	p.Phe288Ser	missense_variant	1/1	ENST00000368090.5	NP_660150.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PIGM	ENST00000368090.5 linkuse as main transcript	c.863T>C	p.Phe288Ser	missense_variant	1/1		NM_145167.3	ENSP00000357069	P1

Frequencies

GnomAD3 genomes

AF:

0.000355

AC:

AN:

152250

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000705

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000239

AC:

AN:

251418

Hom.:

AF XY:

0.000243

AC XY:

AN XY:

135874

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:

0.0000924

Gnomad NFE exome

AF:

0.000501

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000495

AC:

723

AN:

1461892

Hom.:

Cov.:

AF XY:

0.000488

AC XY:

355

AN XY:

727246

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:

0.000112

Gnomad4 NFE exome

AF:

0.000627

Gnomad4 OTH exome

AF:

0.000331

GnomAD4 genome

AF:

0.000355

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

AN XY:

74390

show subpopulations

Gnomad4 AFR

AF:

0.0000724

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000705

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000365

Hom.:

Bravo

AF:

0.000234

TwinsUK

AF:

0.00108

AC:

ALSPAC

AF:

0.00130

AC:

ExAC

AF:

0.000214

AC:

EpiCase

AF:

0.000491

EpiControl

AF:

0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 19, 2024

The c.863T>C (p.F288S) alteration is located in exon 1 (coding exon 1) of the PIGM gene. This alteration results from a T to C substitution at nucleotide position 863, causing the phenylalanine (F) at amino acid position 288 to be replaced by a serine (S). 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

0.095

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.46

CADD

Benign

DANN

Benign

0.79

DEOGEN2

Benign

0.0091

Eigen

Benign

-0.64

Eigen_PC

Benign

-0.57

FATHMM_MKL

Benign

0.45

LIST_S2

Benign

0.56

M_CAP

Benign

0.0056

MetaRNN

Benign

0.067

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.79

MutationTaster

Benign

1.0

PrimateAI

Benign

0.39

PROVEAN

Benign

0.15

REVEL

Benign

0.033

Sift

Benign

0.55

Sift4G

Benign

0.45

Polyphen

0.0040

Vest4

0.53

MVP

0.35

MPC

0.59

ClinPred

0.018

GERP RS

2.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.11

gMVP

0.31

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