rs587778389

Positions:

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_016592.5(GNAS):c.*42+13514G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000229 in 1,566,086 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00024 ( 0 hom. )

Consequence

GNAS
NM_016592.5 intron

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1O:1

Conservation

PhyloP100: -0.157

Variant links:

Genes affected

GNAS (HGNC:4392): (GNAS complex locus) This locus has a highly complex imprinted expression pattern. It gives rise to maternally, paternally, and biallelically expressed transcripts that are derived from four alternative promoters and 5' exons. Some transcripts contain a differentially methylated region (DMR) at their 5' exons, and this DMR is commonly found in imprinted genes and correlates with transcript expression. An antisense transcript is produced from an overlapping locus on the opposite strand. One of the transcripts produced from this locus, and the antisense transcript, are paternally expressed noncoding RNAs, and may regulate imprinting in this region. In addition, one of the transcripts contains a second overlapping ORF, which encodes a structurally unrelated protein - Alex. Alternative splicing of downstream exons is also observed, which results in different forms of the stimulatory G-protein alpha subunit, a key element of the classical signal transduction pathway linking receptor-ligand interactions with the activation of adenylyl cyclase and a variety of cellular reponses. Multiple transcript variants encoding different isoforms have been found for this gene. Mutations in this gene result in pseudohypoparathyroidism type 1a, pseudohypoparathyroidism type 1b, Albright hereditary osteodystrophy, pseudopseudohypoparathyroidism, McCune-Albright syndrome, progressive osseus heteroplasia, polyostotic fibrous dysplasia of bone, and some pituitary tumors. [provided by RefSeq, Aug 2012]

GNAS 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=0.105068415).

BP6

Variant 20-58854400-G-C is Benign according to our data. Variant chr20-58854400-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 134494.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GNAS	NM_080425.4 linkuse as main transcript	c.1135G>C	p.Gly379Arg	missense_variant	1/13	ENST00000371100.9
GNAS	NM_016592.5 linkuse as main transcript	c.*42+13514G>C		intron_variant		ENST00000371075.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GNAS	ENST00000371100.9 linkuse as main transcript	c.1135G>C	p.Gly379Arg	missense_variant	1/13	5	NM_080425.4		Q5JWF2-1
GNAS	ENST00000371075.7 linkuse as main transcript	c.*42+13514G>C		intron_variant		1	NM_016592.5		O95467-1

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152218

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:

0.000250

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000819

AC:

AN:

170898

Hom.:

AF XY:

0.000108

AC XY:

AN XY:

92466

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:

0.00

Gnomad NFE exome

AF:

0.000186

Gnomad OTH exome

AF:

0.000213

GnomAD4 exome

AF:

0.000241

AC:

341

AN:

1413868

Hom.:

Cov.:

AF XY:

0.000237

AC XY:

166

AN XY:

699180

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:

0.00

Gnomad4 NFE exome

AF:

0.000285

Gnomad4 OTH exome

AF:

0.000528

GnomAD4 genome

AF:

0.000118

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000250

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000315

Hom.:

Bravo

AF:

0.000113

ExAC

AF:

0.0000768

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1Other:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

GNAS-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 01, 2024

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not specified

Other:1

not provided, no classification provided

reference population

ITMI

Sep 19, 2013

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.23

CADD

Benign

DANN

Benign

0.75

DEOGEN2

Benign

0.30

T;.;.

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.098

LIST_S2

Benign

0.54

T;T;T

M_CAP

Pathogenic

0.91

MetaRNN

Benign

0.11

T;T;T

MetaSVM

Benign

-0.35

MutationAssessor

Benign

0.90

L;.;L

MutationTaster

Benign

1.0

N;N;N;N;N;N;N

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-1.0

N;N;N

REVEL

Benign

0.23

Sift

Uncertain

0.0080

D;D;D

Sift4G

Uncertain

0.029

D;T;D

Polyphen

0.0050

B;.;.

Vest4

0.16

MutPred

0.21

Gain of methylation at G379 (P = 0.0301);Gain of methylation at G379 (P = 0.0301);Gain of methylation at G379 (P = 0.0301);

MVP

0.20

MPC

0.49

ClinPred

0.059

GERP RS

-1.5

Varity_R

0.14

gMVP

0.23

Splicing

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