9-122046-C-T

Variant names:

• chr9-122046-C-T
• rs1365812025
• NM_018491.5:c.996G>A

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_018491.5(ZNG1A):​c.996G>A​(p.Gln332Gln) 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: 30)
  • Exomes 𝑓: 0.0000014 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ZNG1A NM_018491.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.08
• Publications: 0 publications found

Genes affected

ZNG1A (HGNC:17134): (Zn regulated GTPase metalloprotein activator 1A) Predicted to enable ATP binding activity. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ENSG00000302830 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.44).
• BP7: Synonymous conserved (PhyloP=1.08 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018491.5. 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
	ZNG1A	NM_018491.5	MANE Select	c.996G>A	p.Gln332Gln	synonymous	Exon 14 of 15	NP_060961.3
	ZNG1A	NM_001145356.2		c.939G>A	p.Gln313Gln	synonymous	Exon 13 of 14	NP_001138828.1	Q9BRT8-3
	ZNG1A	NM_001399807.1		c.936G>A	p.Gln312Gln	synonymous	Exon 13 of 14	NP_001386736.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZNG1A	ENST00000356521.9	TSL:1 MANE Select	c.996G>A	p.Gln332Gln	synonymous	Exon 14 of 15	ENSP00000348915.4	Q9BRT8-1
	ZNG1A	ENST00000377400.8	TSL:1	c.996G>A	p.Gln332Gln	synonymous	Exon 14 of 15	ENSP00000366617.5	Q9BRT8-1
	ZNG1A	ENST00000382447.8	TSL:1	c.939G>A	p.Gln313Gln	synonymous	Exon 13 of 14	ENSP00000371885.4	Q9BRT8-3

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD2 exomes AF: 0.00 AC: 0 AN: 65158 AF XY: 0.00

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000137 AC: 2 AN: 1458840 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 725644

⚠️ 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: 33366

American (AMR) AF: 0.00 AC: 0 AN: 44622

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26050

East Asian (EAS) AF: 0.00 AC: 0 AN: 39678

South Asian (SAS) AF: 0.00 AC: 0 AN: 86002

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53392

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4128

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111412

Other (OTH) AF: 0.00 AC: 0 AN: 60190

⚠️ 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 Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.44
CADD	Benign	5.0
DANN	Benign	0.88
PhyloP100		1.1

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: rs1365812025; hg19: chr9-122046;