9-111541677-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_133464.5(ZNF483):c.742A>G(p.Ile248Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000207 in 1,451,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: ZNF483 NM_133464.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.160

Genes affected

ZNF483 (HGNC:23384): (zinc finger protein 483) Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.051099837).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ZNF483	NM_133464.5	c.742A>G	p.Ile248Val	missense_variant	6/6	ENST00000309235.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ZNF483	ENST00000309235.6	c.742A>G	p.Ile248Val	missense_variant	6/6	1	NM_133464.5	P1
ZNF483	ENST00000358151.8	c.721+7324A>G		intron_variant		2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000207 AC: 3 AN: 1451068 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 721664

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000501

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000375 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 11, 2023

The c.742A>G (p.I248V) alteration is located in exon 6 (coding exon 5) of the ZNF483 gene. This alteration results from a A to G substitution at nucleotide position 742, causing the isoleucine (I) at amino acid position 248 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.72
Cadd	Benign	16
Dann	Benign	0.94
DEOGEN2	Benign	0.037	T
Eigen	Benign	-0.60
Eigen_PC	Benign	-0.50
FATHMM_MKL	Benign	0.017	N
LIST_S2	Benign	0.55	T
M_CAP	Benign	0.0021	T
MetaRNN	Benign	0.051	T
MetaSVM	Benign	-0.94	T
MutationAssessor	Benign	1.5	L
MutationTaster	Benign	1.0	D;N
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-0.050	N
REVEL	Benign	0.028
Sift	Benign	0.68	T
Sift4G	Benign	0.80	T
Polyphen		0.012	B
Vest4		0.068
MVP		0.13
MPC		0.40
ClinPred		0.077	T
GERP RS		3.3
Varity_R		0.047
gMVP		0.034

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

Publications

LitVar

Other links and lift over

dbSNP: rs1827672992; hg19: chr9-114303957;