5-37697748-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_018034.4(WDR70):c.1186C>T(p.Arg396Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000011 in 1,460,510 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R396H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000011 (0 hom.)
• Consequence: WDR70 NM_018034.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.46

Genes affected

WDR70 (HGNC:25495): (WD repeat domain 70) Enables enzyme binding activity. Predicted to be involved in regulation of DNA double-strand break processing and regulation of histone H2B conserved C-terminal lysine ubiquitination. Predicted to be active in nucleus and site of double-strand break. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.845

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WDR70	NM_018034.4	c.1186C>T	p.Arg396Cys	missense_variant	11/18	ENST00000265107.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WDR70	ENST00000265107.9	c.1186C>T	p.Arg396Cys	missense_variant	11/18	1	NM_018034.4	P1
WDR70	ENST00000504564.1	c.*120C>T		3_prime_UTR_variant	12/12	1
WDR70	ENST00000510699.1	n.543C>T		non_coding_transcript_exon_variant	5/7	5
WDR70	ENST00000511906.5	n.1200C>T		non_coding_transcript_exon_variant	10/15	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000796 AC: 2 AN: 251278 Hom.: 0 AF XY: 0.0000147 AC XY: 2 AN XY: 135788

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 SAS exome AF: 0.0000653

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000110 AC: 16 AN: 1460510 Hom.: 0 Cov.: 30 AF XY: 0.00000826 AC XY: 6 AN XY: 726638

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000580

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000900

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

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

Aug 17, 2022

The c.1186C>T (p.R396C) alteration is located in exon 11 (coding exon 11) of the WDR70 gene. This alteration results from a C to T substitution at nucleotide position 1186, causing the arginine (R) at amino acid position 396 to be replaced by a cysteine (C). 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	Pathogenic	0.81
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Pathogenic	0.18
Cadd	Pathogenic	33
Dann	Pathogenic	1.0
DEOGEN2	Benign	0.30	T
Eigen	Uncertain	0.58
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.031	D
MetaRNN	Pathogenic	0.85	D
MetaSVM	Benign	-0.65	T
MutationAssessor	Benign	0.44	N
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.77	T
PROVEAN	Pathogenic	-7.2	D
REVEL	Uncertain	0.40
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.89
MutPred		0.64		Loss of disorder (P = 0.0289);
MVP		0.41
MPC		1.5
ClinPred		0.83	D
GERP RS		5.9
Varity_R		0.91
gMVP		0.85

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs760844628; hg19: chr5-37697850; COSMIC: COSV54284577; COSMIC: COSV54284577;