chr3-102469020-G-A

Variant names:

• chr3-102469020-G-A
• rs139821068
• NM_001329788.2:c.818G>A

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001329788.2(ZPLD1):​c.818G>A​(p.Arg273Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,614,038 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R273L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: ZPLD1 NM_001329788.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.91
• Publications: 4 publications found

Genes affected

ZPLD1 (HGNC:27022): (zona pellucida like domain containing 1) Predicted to be an extracellular matrix structural constituent. Predicted to act upstream of or within vestibular reflex. Predicted to be located in cytoplasmic vesicle membrane. Predicted to be integral component of membrane. Predicted to be active in cell surface and extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.81

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001329788.2. 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
	ZPLD1	NM_001329788.2	MANE Select	c.818G>A	p.Arg273Gln	missense	Exon 9 of 12	NP_001316717.1	Q8TCW7-1
	ZPLD1	NM_175056.2		c.866G>A	p.Arg289Gln	missense	Exon 8 of 11	NP_778226.1	Q8TCW7-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZPLD1	ENST00000466937.2	TSL:1 MANE Select	c.818G>A	p.Arg273Gln	missense	Exon 9 of 12	ENSP00000418253.1	Q8TCW7-1
	ZPLD1	ENST00000306176.5	TSL:1	c.866G>A	p.Arg289Gln	missense	Exon 8 of 11	ENSP00000307801.1	Q8TCW7-2
	ZPLD1	ENST00000491959.5	TSL:1	c.818G>A	p.Arg273Gln	missense	Exon 15 of 18	ENSP00000420265.1	Q8TCW7-1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152154 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

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: 0.0000120 AC: 3 AN: 250808 AF XY: 0.0000221

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000163

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1461766 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 727176

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

African (AFR) AF: 0.0000299 AC: 1 AN: 33478

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

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

East Asian (EAS) AF: 0.0000504 AC: 2 AN: 39682

South Asian (SAS) AF: 0.00 AC: 0 AN: 86236

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111960

Other (OTH) AF: 0.00 AC: 0 AN: 60388

⚠️ 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 AF: 0.00000657 AC: 1 AN: 152272 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74442

African (AFR) AF: 0.00 AC: 0 AN: 41554

American (AMR) AF: 0.00 AC: 0 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5186

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10606

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68030

Other (OTH) AF: 0.00 AC: 0 AN: 2114

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Pathogenic	0.19
CADD	Pathogenic	28
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.39	T
Eigen	Pathogenic	0.69
Eigen_PC	Pathogenic	0.69
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.94	D
M_CAP	Uncertain	0.10	D
MetaRNN	Pathogenic	0.81	D
MetaSVM	Uncertain	0.45	D
MutationAssessor	Uncertain	2.2	M
PhyloP100		6.9
PrimateAI	Uncertain	0.65	T
PROVEAN	Uncertain	-2.8	D
REVEL	Pathogenic	0.71
Sift	Uncertain	0.0060	D
Sift4G	Pathogenic	0.0	D
Polyphen		0.99	D
Vest4		0.80
MVP		0.83
MPC		0.29
ClinPred		0.99	D
GERP RS		5.5
Varity_R		0.44
gMVP		0.69
Mutation Taster		=55/45	polymorphism

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: rs139821068; hg19: chr3-102187864; COSMIC: COSV60353448;