rs61732850

chr2-120984656-C-Achr2-120984656-C-Gchr2-120984656-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_001374353.1(GLI2):c.1818C>A(p.Gly606=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00149 in 1,613,930 control chromosomes in the GnomAD database, including 30 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0081 (19 hom., cov: 33)
  • Exomes 𝑓: 0.00080 (11 hom.)
• Consequence: GLI2 NM_001374353.1 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: -1.65

Genes affected

GLI2 (HGNC:4318): (GLI family zinc finger 2) This gene encodes a protein which belongs to the C2H2-type zinc finger protein subclass of the Gli family. Members of this subclass are characterized as transcription factors which bind DNA through zinc finger motifs. These motifs contain conserved H-C links. Gli family zinc finger proteins are mediators of Sonic hedgehog (Shh) signaling and they are implicated as potent oncogenes in the embryonal carcinoma cell. The protein encoded by this gene localizes to the cytoplasm and activates patched Drosophila homolog (PTCH) gene expression. It is also thought to play a role during embryogenesis. The encoded protein is associated with several phenotypes- Greig cephalopolysyndactyly syndrome, Pallister-Hall syndrome, preaxial polydactyly type IV, postaxial polydactyly types A1 and B. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.7).
• BP6: Variant 2-120984656-C-A is Benign according to our data. Variant chr2-120984656-C-A is described in ClinVar as [Benign]. Clinvar id is 259720.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-1.65 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0081 (1233/152292) while in subpopulation AFR AF= 0.0283 (1176/41554). AF 95% confidence interval is 0.027. There are 19 homozygotes in gnomad4. There are 601 alleles in male gnomad4 subpopulation. This position pass quality control queck.
• BS2: High AC in GnomAd at 1230 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GLI2	NM_001374353.1	c.1818C>A	p.Gly606=	synonymous_variant	12/14	ENST00000361492.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GLI2	ENST00000361492.9	c.1818C>A	p.Gly606=	synonymous_variant	12/14	1	NM_001374353.1	P2

Frequencies

GnomAD3 genomes AF: 0.00808 AC: 1230 AN: 152174 Hom.: 18 Cov.: 33

Gnomad AFR AF: 0.0283

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00229

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: 0.000162

Gnomad OTH AF: 0.00525

GnomAD3 exomes AF: 0.00203 AC: 508 AN: 250272 Hom.: 9 AF XY: 0.00149 AC XY: 202 AN XY: 135440

Gnomad AFR exome AF: 0.0286

Gnomad AMR exome AF: 0.00101

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000654

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000443

Gnomad OTH exome AF: 0.000654

GnomAD4 exome AF: 0.000800 AC: 1170 AN: 1461638 Hom.: 11 Cov.: 33 AF XY: 0.000690 AC XY: 502 AN XY: 727134

Gnomad4 AFR exome AF: 0.0289

Gnomad4 AMR exome AF: 0.00103

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000580

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000261

Gnomad4 OTH exome AF: 0.00195

GnomAD4 genome AF: 0.00810 AC: 1233 AN: 152292 Hom.: 19 Cov.: 33 AF XY: 0.00807 AC XY: 601 AN XY: 74472

Gnomad4 AFR AF: 0.0283

Gnomad4 AMR AF: 0.00229

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000162

Gnomad4 OTH AF: 0.00520

Alfa AF: 0.00226 Hom.: 4

Bravo AF: 0.00883

Asia WGS AF: 0.00115 AC: 4 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.000119

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Holoprosencephaly 9;C4014479:Postaxial polydactyly-anterior pituitary anomalies-facial dysmorphism syndrome Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Dec 24, 2023

- -

Holoprosencephaly 9 Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

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. -

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Sep 20, 2021

- -

GLI2-related condition Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 13, 2019

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

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.70
Cadd	Benign	0.038
Dann	Benign	0.58

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

LitVar

Other links and lift over

dbSNP: rs61732850; hg19: chr2-121742232; COSMIC: COSV58036868;