17-46872671-C-A

Variant names:

• chr17-46872671-C-A
• NM_003396.3:c.232C>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_003396.3(WNT9B):​c.232C>A​(p.Leu78Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. L78L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: WNT9B NM_003396.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.320
• Publications: 0 publications found

Genes affected

WNT9B (HGNC:12779): (Wnt family member 9B) The WNT gene family consists of structurally related genes that encode secreted signaling proteins. These proteins have been implicated in oncogenesis and in several developmental processes, including regulation of cell fate and patterning during embryogenesis. This gene is a member of the WNT gene family. Study of its expression in the teratocarcinoma cell line NT2 suggests that it may be implicated in the early process of neuronal differentiation of NT2 cells induced by retinoic acid. This gene is clustered with WNT3, another family member, in the chromosome 17q21 region. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

LRRC37A2 (HGNC:32404): (leucine rich repeat containing 37 member A2) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003396.3. 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
	WNT9B	NM_003396.3	MANE Select	c.232C>A	p.Leu78Met	missense	Exon 2 of 4	NP_003387.1	O14905
	WNT9B	NM_001320458.2		c.232C>A	p.Leu78Met	missense	Exon 2 of 5	NP_001307387.1	E7EPC3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WNT9B	ENST00000290015.7	TSL:1 MANE Select	c.232C>A	p.Leu78Met	missense	Exon 2 of 4	ENSP00000290015.2	O14905
	WNT9B	ENST00000393461.2	TSL:2	c.232C>A	p.Leu78Met	missense	Exon 2 of 5	ENSP00000377105.2	E7EPC3
	WNT9B	ENST00000575372.5	TSL:4	c.250C>A	p.Leu84Met	missense	Exon 2 of 3	ENSP00000458192.1	I3L0L8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.36
BayesDel_addAF	Uncertain	0.046	T
BayesDel_noAF	Benign	-0.17
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.58	D
Eigen	Uncertain	0.40
Eigen_PC	Uncertain	0.31
FATHMM_MKL	Uncertain	0.94	D
M_CAP	Uncertain	0.10	D
MetaRNN	Uncertain	0.70	D
MetaSVM	Uncertain	0.19	D
MutationAssessor	Uncertain	2.6	M
PhyloP100		0.32
PrimateAI	Uncertain	0.68	T
PROVEAN	Benign	-1.2	N
REVEL	Pathogenic	0.68
Sift	Uncertain	0.012	D
Sift4G	Uncertain	0.016	D
Polyphen		1.0	D
Vest4		0.57
MutPred		0.62		Gain of catalytic residue at L78 (P = 0.0684)
MVP		0.66
MPC		0.88
ClinPred		0.93	D
GERP RS		3.5
Varity_R		0.26
gMVP		0.64

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

hg19: chr17-44950037; COSMIC: COSV99255034;