ENST00000641136.1:c.1255-772C>G

Variant names:

• chr14-105768586-G-C
• ENST00000641136.1:c.1124-643C>G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The ENST00000641136.1(IGHG3):​c.1124-643C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.0000067 (0 hom., cov: 30)
  • Failed GnomAD Quality Control
• Consequence: IGHG3 ENST00000641136.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.96
• Publications: 0 publications found

Genes affected

IGHG3 (HGNC:5527): (immunoglobulin heavy constant gamma 3 (G3m marker)) Predicted to enable antigen binding activity and immunoglobulin receptor binding activity. Involved in retina homeostasis. Located in blood microparticle and extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

IGH (HGNC:5477):

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.96).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IGH		n.105768586G>C		intragenic_variant
IGHG3	unassigned_transcript_2476	c.1124-643C>G		intron_variant	Intron 7 of 8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IGHG3	ENST00000641136.1	c.1124-643C>G		intron_variant	Intron 7 of 8			ENSP00000492969.1

Frequencies

GnomAD3 genomes AF: 0.00000666 AC: 1 AN: 150200 Hom.: 0 Cov.: 30

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: 0.0000148

Gnomad OTH AF: 0.00

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000666 AC: 1 AN: 150200 Hom.: 0 Cov.: 30 AF XY: 0.0000137 AC XY: 1 AN XY: 73176

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 40444

American (AMR) AF: 0.00 AC: 0 AN: 15006

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3462

East Asian (EAS) AF: 0.00 AC: 0 AN: 5098

South Asian (SAS) AF: 0.00 AC: 0 AN: 4702

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10526

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 312

European-Non Finnish (NFE) AF: 0.0000148 AC: 1 AN: 67690

Other (OTH) AF: 0.00 AC: 0 AN: 2052

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.96
CADD	Benign	2.1
DANN	Benign	0.47
PhyloP100		-2.0

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

hg19: chr14-106234923;