1-231241404-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_014236.4(GNPAT):c.26C>T(p.Ser9Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00292 in 1,613,988 control chromosomes in the GnomAD database, including 126 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.016 ( 61 hom., cov: 33)

Exomes 𝑓: 0.0015 ( 65 hom. )

Consequence

GNPAT
NM_014236.4 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.223

Publications

4 publications found

Variant links:

Genes affected

GNPAT (HGNC:4416): (glyceronephosphate O-acyltransferase) This gene encodes an enzyme located in the peroxisomal membrane which is essential to the synthesis of ether phospholipids. Mutations in this gene are associated with rhizomelic chondrodysplasia punctata. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2015]

GNPAT links:

FSAF1 (HGNC:25332): (chromosome 1 open reading frame 131) Enables RNA binding activity. Located in chromosome. [provided by Alliance of Genome Resources, Apr 2022]

FSAF1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0020586848).

BP6

Variant 1-231241404-C-T is Benign according to our data. Variant chr1-231241404-C-T is described in ClinVar as Benign. ClinVar VariationId is 260361.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0544 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GNPAT	NM_014236.4 link	c.26C>T	p.Ser9Phe	missense_variant	Exon 1 of 16	ENST00000366647.9	NP_055051.1	O15228-1
FSAF1	NM_152379.4 link	c.-263G>A		upstream_gene_variant		ENST00000366649.7	NP_689592.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GNPAT	ENST00000366647.9 link	c.26C>T	p.Ser9Phe	missense_variant	Exon 1 of 16	1	NM_014236.4	ENSP00000355607.4		O15228-1
C1orf131	ENST00000366649.7 link	c.-263G>A		upstream_gene_variant		1	NM_152379.4	ENSP00000355609.2		Q8NDD1-1

Frequencies

GnomAD3 genomes

AF:

0.0161

AC:

2443

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0559

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00648

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.0105

GnomAD2 exomes

AF:

0.00422

AC:

1052

AN:

249172

AF XY:

0.00297

show subpopulations

Gnomad AFR exome

AF:

0.0567

Gnomad AMR exome

AF:

0.00301

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000987

Gnomad OTH exome

AF:

0.00163

GnomAD4 exome

AF:

0.00154

AC:

2252

AN:

1461692

Hom.:

Cov.:

AF XY:

0.00129

AC XY:

938

AN XY:

727190

show subpopulations

African (AFR)

AF:

0.0545

AC:

1824

AN:

33458

American (AMR)

AF:

0.00306

AC:

137

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.000255

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00121

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000513

AC:

AN:

1111848

Other (OTH)

AF:

0.00338

AC:

204

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.466

Heterozygous variant carriers

135

270

406

541

676

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

112

168

224

280

<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:

0.0162

AC:

2467

AN:

152296

Hom.:

Cov.:

AF XY:

0.0157

AC XY:

1172

AN XY:

74472

show subpopulations

African (AFR)

AF:

0.0563

AC:

2339

AN:

41558

American (AMR)

AF:

0.00647

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000207

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68014

Other (OTH)

AF:

0.0104

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

118

235

353

470

588

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

120

150

<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:

0.00581

Hom.:

Bravo

AF:

0.0186

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.0486

AC:

214

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00534

AC:

648

Asia WGS

AF:

0.00433

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000296

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jun 24, 2016

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Rhizomelic chondrodysplasia punctata type 2

Benign:2

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Nov 06, 2023

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.21

CADD

Benign

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.18

.;T;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.018

LIST_S2

Benign

0.33

T;T;T

MetaRNN

Benign

0.0021

T;T;T

MetaSVM

Benign

-0.70

MutationAssessor

Benign

1.6

.;L;.

PhyloP100

0.22

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.52

N;N;N

REVEL

Benign

0.15

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

0.0010

.;B;.

Vest4

0.31

MVP

0.63

MPC

0.25

ClinPred

0.030

GERP RS

-1.4

PromoterAI

-0.099

Neutral

(source)

Varity_R

0.066

gMVP

0.36

Mutation Taster

=99/1

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over