7-42026191-C-T

Variant names:

• chr7-42026191-C-T
• rs75925934
• NM_000168.6:c.1242+8G>A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BS1 BS2

The NM_000168.6(GLI3):​c.1242+8G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000153 in 1,605,350 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.00038 (1 hom., cov: 33)
  • Exomes 𝑓: 0.00013 (1 hom.)
• Consequence: GLI3 NM_000168.6 splice_region, intron
• Scores: Splicing: ADA: 0.0003630
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: 0.210

Genes affected

GLI3 (HGNC:4319): (GLI family zinc finger 3) This gene encodes a protein which belongs to the C2H2-type zinc finger proteins subclass of the Gli family. They are characterized as DNA-binding transcription factors and are mediators of Sonic hedgehog (Shh) signaling. The protein encoded by this gene localizes in the cytoplasm and activates patched Drosophila homolog (PTCH) gene expression. It is also thought to play a role during embryogenesis. Mutations in this gene have been associated with several diseases, including Greig cephalopolysyndactyly syndrome, Pallister-Hall syndrome, preaxial polydactyly type IV, and postaxial polydactyly types A1 and B. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.67).
• BP6: Variant 7-42026191-C-T is Benign according to our data. Variant chr7-42026191-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 211082.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-42026191-C-T is described in Lovd as [Likely_benign].
• BS1: Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000381 (58/152330) while in subpopulation EAS AF= 0.00638 (33/5174). AF 95% confidence interval is 0.00467. There are 1 homozygotes in gnomad4. There are 26 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 58 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GLI3	NM_000168.6	c.1242+8G>A		splice_region_variant, intron_variant	Intron 8 of 14	ENST00000395925.8	NP_000159.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GLI3	ENST00000395925.8	c.1242+8G>A		splice_region_variant, intron_variant	Intron 8 of 14	5	NM_000168.6	ENSP00000379258.3

Frequencies

GnomAD3 genomes AF: 0.000388 AC: 59 AN: 152216 Hom.: 1 Cov.: 33

Gnomad AFR AF: 0.000458

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00656

Gnomad SAS AF: 0.000828

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000561 AC: 136 AN: 242542 Hom.: 2 AF XY: 0.000473 AC XY: 62 AN XY: 131116

Gnomad AFR exome AF: 0.000977

Gnomad AMR exome AF: 0.0000590

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00630

Gnomad SAS exome AF: 0.0000337

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000275

Gnomad OTH exome AF: 0.000338

GnomAD4 exome AF: 0.000129 AC: 187 AN: 1453020 Hom.: 1 Cov.: 31 AF XY: 0.000116 AC XY: 84 AN XY: 722776

Gnomad4 AFR exome AF: 0.000270

Gnomad4 AMR exome AF: 0.0000453

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00304

Gnomad4 SAS exome AF: 0.000211

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000452

Gnomad4 OTH exome AF: 0.000550

GnomAD4 genome AF: 0.000381 AC: 58 AN: 152330 Hom.: 1 Cov.: 33 AF XY: 0.000349 AC XY: 26 AN XY: 74488

Gnomad4 AFR AF: 0.000457

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00638

Gnomad4 SAS AF: 0.000829

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000352 Hom.: 0

Bravo AF: 0.000434

Asia WGS AF: 0.00433 AC: 15 AN: 3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:1

Sep 08, 2020

Genetic Services Laboratory, University of Chicago

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Pallister-Hall syndrome;C0265306:Greig cephalopolysyndactyly syndrome Benign:1

Dec 03, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Pallister-Hall syndrome;C0265306:Greig cephalopolysyndactyly syndrome;C1868111:Polysyndactyly 4;C4282400:Polydactyly, postaxial, type A1 Benign:1

Oct 11, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.67
CADD	Benign	7.8
DANN	Benign	0.78

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00036
dbscSNV1_RF	Benign	0.0080
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: rs75925934; hg19: chr7-42065790;