14-105741749-A-G

Variant names:

• chr14-105741749-A-G
• rs1045853
• ENST00000390548.6:c.717T>C

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The ENST00000390548.6(IGHG1):​c.717T>C​(p.Asp239Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 26)
  • Exomes 𝑓: 0.0000032 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: IGHG1 ENST00000390548.6 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -7.34
• Publications: 9 publications found

Genes affected

IGHG1 (HGNC:5525): (immunoglobulin heavy constant gamma 1 (G1m marker)) Predicted to enable antigen binding activity and immunoglobulin receptor binding activity. Predicted to be involved in several processes, including activation of immune response; defense response to other organism; and phagocytosis. Predicted to act upstream of or within several processes, including immunoglobulin mediated immune response; positive regulation of hypersensitivity; and positive regulation of phagocytosis. Located in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

IGHG1 Gene-Disease associations (from GenCC):

• systemic lupus erythematosus

  Inheritance: Unknown Classification: SUPPORTIVE Submitted by: Orphanet

IGH (HGNC:5477):

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BP7: Synonymous conserved (PhyloP=-7.34 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000390548.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
There are no transcript annotations for this variant.

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IGHG1	ENST00000390548.6	TSL:6	c.717T>C	p.Asp239Asp	synonymous	Exon 4 of 6	ENSP00000374990.2
	IGHG1	ENST00000390549.6	TSL:6	c.717T>C	p.Asp239Asp	synonymous	Exon 4 of 4	ENSP00000374991.2
	IGHG1	ENST00000390542.6	TSL:6	c.612T>C	p.Asp204Asp	synonymous	Exon 5 of 5	ENSP00000374984.2

Frequencies

GnomAD3 genomes Cov.: 26

GnomAD2 exomes AF: 0.00000537 AC: 1 AN: 186100 AF XY: 0.0000102

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000577

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000324 AC: 2 AN: 617224 Hom.: 0 Cov.: 0 AF XY: 0.00000595 AC XY: 2 AN XY: 336144

African (AFR) AF: 0.00 AC: 0 AN: 17488

American (AMR) AF: 0.00 AC: 0 AN: 41724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 20100

East Asian (EAS) AF: 0.00 AC: 0 AN: 36060

South Asian (SAS) AF: 0.0000147 AC: 1 AN: 67998

European-Finnish (FIN) AF: 0.0000189 AC: 1 AN: 52772

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3042

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 345580

Other (OTH) AF: 0.00 AC: 0 AN: 32460

GnomAD4 genome Cov.: 26

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.79
DANN	Benign	0.44
PhyloP100		-7.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs1045853; hg19: chr14-106208086;