rs3730168
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Variant summary
Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1
The NM_000516.7(GNAS):c.432+93G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.329 in 1,361,808 control chromosomes in the GnomAD database, including 75,343 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).
Frequency
Genomes: 𝑓 0.35 ( 9821 hom., cov: 32)
Exomes 𝑓: 0.33 ( 65522 hom. )
Consequence
GNAS
NM_000516.7 intron
NM_000516.7 intron
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.788
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]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -14 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
?
Variant 20-58903884-G-A is Benign according to our data. Variant chr20-58903884-G-A is described in ClinVar as [Benign]. Clinvar id is 1238617.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
?
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.449 is higher than 0.05.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GNAS | NM_000516.7 | c.432+93G>A | intron_variant | ENST00000371085.8 | |||
GNAS | NM_016592.5 | c.*338+93G>A | intron_variant | ENST00000371075.7 | |||
GNAS | NM_080425.4 | c.2361+93G>A | intron_variant | ENST00000371100.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GNAS | ENST00000371075.7 | c.*338+93G>A | intron_variant | 1 | NM_016592.5 | ||||
GNAS | ENST00000371085.8 | c.432+93G>A | intron_variant | 1 | NM_000516.7 | ||||
GNAS | ENST00000371100.9 | c.2361+93G>A | intron_variant | 5 | NM_080425.4 |
Frequencies
GnomAD3 genomes ? AF: 0.353 AC: 53636AN: 151976Hom.: 9803 Cov.: 32
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GnomAD4 exome AF: 0.325 AC: 393706AN: 1209714Hom.: 65522 AF XY: 0.326 AC XY: 200045AN XY: 613274
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GnomAD4 genome ? AF: 0.353 AC: 53689AN: 152094Hom.: 9821 Cov.: 32 AF XY: 0.350 AC XY: 26032AN XY: 74340
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ClinVar
Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Benign:1
Benign, criteria provided, single submitter | clinical testing | GeneDx | Nov 08, 2018 | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at