NM_001374353.1:c.322delG

Variant names:

• chr2-120951308-CG-C
• rs1553471273
• NM_001374353.1:c.322delG

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_001374353.1(GLI2):​c.322delG​(p.Ala108LeufsTer15) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,458,524 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: GLI2 NM_001374353.1 frameshift
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2 U:1
• Conservation: PhyloP100: -4.01
• Publications: 0 publications found

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]

GLI2 Gene-Disease associations (from GenCC):

• holoprosencephaly 9

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• postaxial polydactyly-anterior pituitary anomalies-facial dysmorphism syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, Illumina
• combined pituitary hormone deficiencies, genetic form

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• holoprosencephaly

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 2-120951308-CG-C is Pathogenic according to our data. Variant chr2-120951308-CG-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 520904.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001374353.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GLI2	NM_001374353.1	MANE Select	c.322delG	p.Ala108LeufsTer15	frameshift	Exon 4 of 14	NP_001361282.1	A0A7I2PJA1
	GLI2	NM_001371271.1		c.322delG	p.Ala108LeufsTer15	frameshift	Exon 4 of 14	NP_001358200.1	P10070-5
	GLI2	NM_005270.5		c.322delG	p.Ala108LeufsTer15	frameshift	Exon 4 of 14	NP_005261.2	P10070-5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GLI2	ENST00000361492.9	TSL:1 MANE Select	c.322delG	p.Ala108LeufsTer15	frameshift	Exon 4 of 14	ENSP00000354586.5	A0A7I2PJA1
	GLI2	ENST00000433812.1	TSL:1	n.*21delG		non_coding_transcript_exon	Exon 2 of 7	ENSP00000402383.1	H7C1U2
	GLI2	ENST00000433812.1	TSL:1	n.*21delG		3_prime_UTR	Exon 2 of 7	ENSP00000402383.1	H7C1U2

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD2 exomes AF: 0.00000797 AC: 2 AN: 251084 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000579

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000206 AC: 3 AN: 1458524 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 725768

African (AFR) AF: 0.00 AC: 0 AN: 33440

American (AMR) AF: 0.0000447 AC: 2 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26114

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39690

South Asian (SAS) AF: 0.00 AC: 0 AN: 86194

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53202

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1109110

Other (OTH) AF: 0.00 AC: 0 AN: 60294

GnomAD4 genome Cov.: 34

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
1	-	-	Holoprosencephaly 9;C4014479:Postaxial polydactyly-anterior pituitary anomalies-facial dysmorphism syndrome (1)
1	-	-	Inborn genetic diseases (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		-4.0
Mutation Taster		=12/188	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1553471273; hg19: chr2-121708884;