2-189459361-T-C

Position:

• chr2-189459361-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_032168.3(WDR75):​c.715T>C​(p.Tyr239His) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: WDR75 NM_032168.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.57

Genes affected

WDR75 (HGNC:25725): (WD repeat domain 75) Enables RNA binding activity. Involved in positive regulation of rRNA processing and positive regulation of transcription by RNA polymerase I. Located in nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WDR75	NM_032168.3	c.715T>C	p.Tyr239His	missense_variant	8/21	ENST00000314761.9
WDR75	NM_001303096.2	c.523T>C	p.Tyr175His	missense_variant	9/22

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WDR75	ENST00000314761.9	c.715T>C	p.Tyr239His	missense_variant	8/21	1	NM_032168.3	P1
WDR75	ENST00000427960.5	c.*2079T>C		3_prime_UTR_variant, NMD_transcript_variant	8/21	1
WDR75	ENST00000436347.5	c.*479T>C		3_prime_UTR_variant, NMD_transcript_variant	9/22	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

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

Mar 20, 2023

The c.715T>C (p.Y239H) alteration is located in exon 8 (coding exon 8) of the WDR75 gene. This alteration results from a T to C substitution at nucleotide position 715, causing the tyrosine (Y) at amino acid position 239 to be replaced by a histidine (H). 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	0.64
BayesDel_addAF	Uncertain	0.029	T
BayesDel_noAF	Benign	-0.20
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.12	T
Eigen	Uncertain	0.51
Eigen_PC	Uncertain	0.47
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.80	T
M_CAP	Benign	0.031	D
MetaRNN	Uncertain	0.57	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.1	M
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.75	T
PROVEAN	Benign	-2.2	N
REVEL	Uncertain	0.29
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.60
MutPred		0.58		Gain of catalytic residue at K237 (P = 0.0985);
MVP		0.068
MPC		0.78
ClinPred		0.89	D
GERP RS		5.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.41
gMVP		0.65

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-190324087;