20-45416170-T-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_015937.6(PIGT):c.14T>C(p.Met5Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000172 in 1,571,082 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M5V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

PIGT
NM_015937.6 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:3

Conservation

PhyloP100: 0.271

Publications

0 publications found

Variant links:

Genes affected

PIGT (HGNC:14938): (phosphatidylinositol glycan anchor biosynthesis class T) This gene encodes a protein that is involved in glycosylphosphatidylinositol (GPI)-anchor biosynthesis. The GPI-anchor is a glycolipid found on many blood cells and serves to anchor proteins to the cell surface. This protein is an essential component of the multisubunit enzyme, GPI transamidase. GPI transamidase mediates GPI anchoring in the endoplasmic reticulum, by catalyzing the transfer of fully assembled GPI units to proteins. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, May 2012]

PIGT Gene-Disease associations (from GenCC):

multiple congenital anomalies-hypotonia-seizures syndrome 3
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae), G2P

PIGT links:

LOC107985405 (HGNC:):

LOC107985405 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.054009408).

BP6

Variant 20-45416170-T-C is Benign according to our data. Variant chr20-45416170-T-C is described in ClinVar as Likely_benign. ClinVar VariationId is 1206229.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015937.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PIGT	NM_015937.6	MANE Select	c.14T>C	p.Met5Thr	missense	Exon 1 of 12	NP_057021.2
PIGT	NM_001184728.3		c.14T>C	p.Met5Thr	missense	Exon 1 of 11	NP_001171657.1	Q969N2-5
PIGT	NM_001184729.3		c.14T>C	p.Met5Thr	missense	Exon 1 of 11	NP_001171658.1	Q969N2-6

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PIGT	ENST00000279036.12	TSL:1 MANE Select	c.14T>C	p.Met5Thr	missense	Exon 1 of 12	ENSP00000279036.6	Q969N2-1
PIGT	ENST00000372689.9	TSL:1	c.14T>C	p.Met5Thr	missense	Exon 1 of 11	ENSP00000361774.4	Q969N2-6
PIGT	ENST00000639382.1	TSL:1	c.14T>C	p.Met5Thr	missense	Exon 1 of 9	ENSP00000491534.1	A0A1W2PPQ7

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000555

AC:

AN:

180160

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000131

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000169

AC:

AN:

1418720

Hom.:

Cov.:

AF XY:

0.0000114

AC XY:

AN XY:

702548

show subpopulations

African (AFR)

AF:

0.0000621

AC:

AN:

32228

American (AMR)

AF:

0.00

AC:

AN:

38704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25366

East Asian (EAS)

AF:

0.00

AC:

AN:

36858

South Asian (SAS)

AF:

0.00

AC:

AN:

81380

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48934

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4444

European-Non Finnish (NFE)

AF:

0.0000201

AC:

AN:

1092138

Other (OTH)

AF:

0.00

AC:

AN:

58668

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.462

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:

0.0000197

AC:

AN:

152362

Hom.:

Cov.:

AF XY:

0.0000268

AC XY:

AN XY:

74504

show subpopulations

African (AFR)

AF:

0.0000240

AC:

AN:

41586

American (AMR)

AF:

0.00

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2112

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

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:

0.0000712

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000845

AC:

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Benign

7.9

(source)

DANN

Benign

0.89

DEOGEN2

Benign

0.014

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.097

LIST_S2

Benign

0.84

M_CAP

Benign

0.012

MetaRNN

Benign

0.054

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.69

PhyloP100

0.27

PrimateAI

Benign

0.40

PROVEAN

Benign

-0.93

REVEL

Benign

0.020

Sift

Benign

0.12

Sift4G

Benign

0.11

Polyphen

0.0010

Vest4

0.15

MVP

0.088

MPC

0.14

ClinPred

0.049

GERP RS

0.78

PromoterAI

-0.029

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.18

gMVP

0.50

Mutation Taster

=85/15

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over