chr10-133626710-G-A

Variant names:

• chr10-133626710-G-A
• rs75987380
• NM_001080998.2:c.33C>T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Strong BP7

The NM_001080998.2(FRG2B):​c.33C>T​(p.His11His) variant causes a synonymous 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 0.0 (0 hom., cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: FRG2B NM_001080998.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.842
• Publications: 9 publications found

Genes affected

FRG2B (HGNC:33518): (FSHD region gene 2 family member B) Predicted to be located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ENSG00000288107 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.99).
• BP7: Synonymous conserved (PhyloP=0.842 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001080998.2. 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
	FRG2B	NM_001080998.2	MANE Select	c.33C>T	p.His11His	synonymous	Exon 1 of 4	NP_001074467.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FRG2B	ENST00000425520.2	TSL:1 MANE Select	c.33C>T	p.His11His	synonymous	Exon 1 of 4	ENSP00000401310.1
	FRG2B	ENST00000443774.5	TSL:1	c.33C>T	p.His11His	synonymous	Exon 1 of 4	ENSP00000408343.1
	ENSG00000288107	ENST00000655152.1		n.446-823G>A		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.00 AC: 0 AN: 152220 Hom.: 0 Cov.: 33

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: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000195 AC: 4 AN: 205256 AF XY: 0.0000361

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: 0.00

Gnomad NFE exome AF: 0.0000433

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 6.85e-7 AC: 1 AN: 1459708 Hom.: 0 Cov.: 36 AF XY: 0.00000138 AC XY: 1 AN XY: 726162

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

African (AFR) AF: 0.00 AC: 0 AN: 33408

American (AMR) AF: 0.00 AC: 0 AN: 44712

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86162

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4150

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111816

Other (OTH) AF: 0.00 AC: 0 AN: 60208

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 152338 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74500

African (AFR) AF: 0.00 AC: 0 AN: 41542

American (AMR) AF: 0.00 AC: 0 AN: 15312

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10628

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68042

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.99
CADD	Benign	2.4
DANN	Benign	0.52
PhyloP100		0.84
PromoterAI		0.00090	Neutral

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: rs75987380; hg19: chr10-135440214;