chr2-19910938-C-T

Variant names:

• chr2-19910938-C-T
• rs545271105
• NM_001006657.2:c.*2620G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_020779.4(WDR35):​c.*2620G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000637 in 152,212 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.00064 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: WDR35 NM_020779.4 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:2
• Conservation: PhyloP100: -0.0140
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• cranioectodermal dysplasia 2

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen, G2P, Ambry Genetics
• short-rib thoracic dysplasia 7 with or without polydactyly

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet
• cranioectodermal dysplasia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• short rib-polydactyly syndrome, Verma-Naumoff type

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020779.4. 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
	WDR35	NM_001006657.2	MANE Plus Clinical	c.*2620G>A		3_prime_UTR	Exon 28 of 28	NP_001006658.1	Q9P2L0-1
	WDR35	NM_020779.4	MANE Select	c.*2620G>A		3_prime_UTR	Exon 27 of 27	NP_065830.2	Q9P2L0-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WDR35	ENST00000345530.8	TSL:1 MANE Plus Clinical	c.*2620G>A		3_prime_UTR	Exon 28 of 28	ENSP00000314444.5	Q9P2L0-1
	WDR35	ENST00000281405.9	TSL:1 MANE Select	c.*2620G>A		3_prime_UTR	Exon 27 of 27	ENSP00000281405.5	Q9P2L0-2

Frequencies

GnomAD3 genomes AF: 0.000638 AC: 97 AN: 152094 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000725

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00230

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00236

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000882

Gnomad OTH AF: 0.000478

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 2 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 2

African (AFR) AC: 0 AN: 0

American (AMR) AC: 0 AN: 0

Ashkenazi Jewish (ASJ) AC: 0 AN: 0

East Asian (EAS) AC: 0 AN: 0

South Asian (SAS) AC: 0 AN: 0

European-Finnish (FIN) AC: 0 AN: 0

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 2

Other (OTH) AC: 0 AN: 0

GnomAD4 genome AF: 0.000637 AC: 97 AN: 152212 Hom.: 0 Cov.: 32 AF XY: 0.000645 AC XY: 48 AN XY: 74414

African (AFR) AF: 0.0000723 AC: 3 AN: 41520

American (AMR) AF: 0.00 AC: 0 AN: 15288

Ashkenazi Jewish (ASJ) AF: 0.00230 AC: 8 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4820

European-Finnish (FIN) AF: 0.00236 AC: 25 AN: 10592

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.000882 AC: 60 AN: 68016

Other (OTH) AF: 0.000473 AC: 1 AN: 2114

Alfa AF: 0.00132 Hom.: 0

Bravo AF: 0.000427

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Cranioectodermal dysplasia 2 (1)
-	1	-	Short-rib thoracic dysplasia 7 with or without polydactyly (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	1.0
DANN	Benign	0.50
PhyloP100		-0.014
Mutation Taster		=100/0	polymorphism

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: rs545271105; hg19: chr2-20110699;