2-19975596-A-C

Position:

• chr2-19975596-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_020779.4(WDR35):​c.504T>G​(p.Ser168Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,246 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.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: WDR35 NM_020779.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.64

Genes affected

WDR35 (HGNC:29250): (WD repeat domain 35) This gene encodes a member of the WD repeat protein family. WD repeats are minimally conserved regions of approximately 40 amino acids typically bracketed by gly-his and trp-asp (GH-WD), which may facilitate formation of heterotrimeric or multiprotein complexes. Members of this family are involved in a variety of cellular processes, including cell cycle progression, signal transduction, apoptosis, and gene regulation. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. Two patients with Sensenbrenner syndrome / cranioectodermal dysplasia (CED) were identified with mutations in this gene, consistent with a possible ciliary function.[provided by RefSeq, Sep 2010]

WDR35 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.805

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
WDR35	NM_001006657.2	c.504T>G	p.Ser168Arg	missense_variant	6/28	ENST00000345530.8	NP_001006658.1
WDR35	NM_020779.4	c.504T>G	p.Ser168Arg	missense_variant	6/27	ENST00000281405.9	NP_065830.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
WDR35	ENST00000345530.8	c.504T>G	p.Ser168Arg	missense_variant	6/28	1	NM_001006657.2	ENSP00000314444.5
WDR35	ENST00000281405.9	c.504T>G	p.Ser168Arg	missense_variant	6/27	1	NM_020779.4	ENSP00000281405.5
WDR35	ENST00000414212.5	n.504T>G		non_coding_transcript_exon_variant	6/28	5		ENSP00000390802.1
WDR35	ENST00000445063.5	n.39T>G		non_coding_transcript_exon_variant	1/18	2		ENSP00000390105.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152246 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

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

GnomAD4 exome Cov.: 31

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152246 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74380

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.0000654

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.85
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.070
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.15	.;T
Eigen	Benign	-0.18
Eigen_PC	Benign	-0.14
FATHMM_MKL	Uncertain	0.87	D
LIST_S2	Uncertain	0.97	D;D
M_CAP	Uncertain	0.087	D
MetaRNN	Pathogenic	0.80	D;D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.4	M;M
PrimateAI	Uncertain	0.58	T
PROVEAN	Uncertain	-2.8	D;D
REVEL	Benign	0.29
Sift	Uncertain	0.0090	D;D
Sift4G	Benign	0.092	T;T
Polyphen		0.32	B;B
Vest4		0.94
MutPred		0.65		Gain of MoRF binding (P = 0.0633);Gain of MoRF binding (P = 0.0633);
MVP		0.38
MPC		0.15
ClinPred		0.93	D
GERP RS		1.0
Varity_R		0.79
gMVP		0.84

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: rs397515536; hg19: chr2-20175357;