rs587778383

Positions:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_080425.4(GNAS):c.1427C>A(p.Ala476Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A476A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000029 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

GNAS
NM_080425.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.231

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:

GNAS (HGNC:):

GNAS links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.050243735).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GNAS	NM_016592.5 linkuse as main transcript	c.*42+13806C>A		intron_variant		ENST00000371075.7	NP_057676.1	O95467-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
GNAS	ENST00000676826.2 linkuse as main transcript	c.1427C>A	p.Ala476Asp	missense_variant	1/13			ENSP00000504675.2	A0A7I2V5R6
GNAS	ENST00000371102.8 linkuse as main transcript	c.1427C>A	p.Ala476Asp	missense_variant	1/12	5		ENSP00000360143.4	Q5JWF2-2
GNAS	ENST00000371075.7 linkuse as main transcript	c.*42+13806C>A		intron_variant		1	NM_016592.5	ENSP00000360115.3	O95467-1
GNAS	ENST00000663479.2 linkuse as main transcript	c.-39+12817C>A		intron_variant				ENSP00000499353.2	A0A590UJQ9
GNAS	ENST00000462499.6 linkuse as main transcript	c.-39+12817C>A		intron_variant		2		ENSP00000499758.2	A0A590UK28
GNAS	ENST00000467227.6 linkuse as main transcript	c.-39+10618C>A		intron_variant		3		ENSP00000499681.2	A0A590UK28
GNAS	ENST00000453292.7 linkuse as main transcript	c.*42+13806C>A		intron_variant		5		ENSP00000392000.2	O95467-1A2A2S1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

152008

Hom.:

Cov.:

FAILED QC

Gnomad AFR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000404

AC:

AN:

123628

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

68024

show subpopulations

Gnomad AFR exome

AF:

0.000966

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000291

AC:

AN:

1376574

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

679022

show subpopulations

Gnomad4 AFR exome

AF:

0.000130

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Data not reliable, filtered out with message: AC0;AS_VQSR

AF:

0.00

AC:

AN:

152008

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74260

Gnomad4 AFR

AF:

0.00

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:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.052

BayesDel_noAF

Benign

-0.31

CADD

Benign

3.7

DANN

Benign

0.78

DEOGEN2

Benign

0.25

T;.;.

Eigen

Benign

-0.57

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.015

LIST_S2

Benign

0.29

T;T;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.050

T;T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.63

N;.;N

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-0.44

N;N;N

REVEL

Benign

0.22

Sift

Benign

0.46

T;T;T

Sift4G

Uncertain

0.0090

D;T;D

Polyphen

0.010

B;.;.

Vest4

0.19

MutPred

0.19

Gain of loop (P = 0.0502);Gain of loop (P = 0.0502);Gain of loop (P = 0.0502);

MVP

0.23

MPC

0.62

ClinPred

0.039

GERP RS

2.9

Varity_R

0.098

gMVP

0.16

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over