3-122415161-C-G

Variant names:

• chr3-122415161-C-G
• rs377641585
• NM_019069.4:c.368G>C

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_019069.4(WDR5B):​c.368G>C​(p.Gly123Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000836 in 1,613,996 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. G123E) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000039 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000088 (0 hom.)
• Consequence: WDR5B NM_019069.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.63
• Publications: 0 publications found

Genes affected

WDR5B (HGNC:17826): (WD repeat domain 5B) This intronless gene encodes a protein containing several WD40 repeats. WD repeats are approximately 30- to 40-amino acid domains containing several conserved residues, including a trp-asp at the C-terminal end. The encoded protein may mediate protein-protein interactions. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.774

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WDR5B	NM_019069.4	c.368G>C	p.Gly123Ala	missense_variant	Exon 1 of 1	ENST00000330689.6	NP_061942.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WDR5B	ENST00000330689.6	c.368G>C	p.Gly123Ala	missense_variant	Exon 1 of 1	6	NM_019069.4	ENSP00000330381.4

Frequencies

GnomAD3 genomes AF: 0.0000394 AC: 6 AN: 152124 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.0000735

Gnomad OTH AF: 0.000478

GnomAD2 exomes AF: 0.0000796 AC: 20 AN: 251304 AF XY: 0.0000810

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000167

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000882 AC: 129 AN: 1461872 Hom.: 0 Cov.: 32 AF XY: 0.0000880 AC XY: 64 AN XY: 727240

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.000113 AC: 126 AN: 1112008

Other (OTH) AF: 0.0000497 AC: 3 AN: 60396

GnomAD4 genome AF: 0.0000394 AC: 6 AN: 152124 Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2 AN XY: 74312

African (AFR) AF: 0.00 AC: 0 AN: 41404

American (AMR) AF: 0.00 AC: 0 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5196

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10598

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000735 AC: 5 AN: 68026

Other (OTH) AF: 0.000478 AC: 1 AN: 2094

Alfa AF: 0.0000676 Hom.: 0

Bravo AF: 0.0000567

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.000259 AC: 1

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000233 AC: 2

ExAC AF: 0.0000824 AC: 10

EpiCase AF: 0.000164

EpiControl AF: 0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Mar 22, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.368G>C (p.G123A) alteration is located in exon 1 (coding exon 1) of the WDR5B gene. This alteration results from a G to C substitution at nucleotide position 368, causing the glycine (G) at amino acid position 123 to be replaced by an alanine (A). 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	Uncertain	0.42
BayesDel_addAF	Benign	-0.043	T
BayesDel_noAF	Uncertain	-0.040
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.12	T
Eigen	Uncertain	0.68
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.069	D
MetaRNN	Pathogenic	0.77	D
MetaSVM	Uncertain	-0.069	T
MutationAssessor	Benign	1.4	L
PhyloP100		5.6
PrimateAI	Uncertain	0.61	T
PROVEAN	Pathogenic	-5.6	D
REVEL	Uncertain	0.64
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.66
MVP		0.95
MPC		0.43
ClinPred		0.84	D
GERP RS		4.6
Varity_R		0.82
gMVP		0.59
Mutation Taster		=4/96	disease causing

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

dbSNP: rs377641585; hg19: chr3-122134008;