chr12-31083835-G-C

Variant names:

• chr12-31083835-G-C
• rs376076534
• NM_030653.4:c.167G>C

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001413703.1(DDX11):​c.-362G>C variant causes a 5 prime UTR premature start codon gain change. The variant allele was found at a frequency of 0.000000685 in 1,459,896 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: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: DDX11 NM_001413703.1 5_prime_UTR_premature_start_codon_gain
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.77
• Publications: 0 publications found

Genes affected

DDX11 (HGNC:2736): (DEAD/H-box helicase 11) DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box protein, which is an enzyme that possesses both ATPase and DNA helicase activities. This gene is a homolog of the yeast CHL1 gene, and may function to maintain chromosome transmission fidelity and genome stability. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2008]

DDX11 Gene-Disease associations (from GenCC):

• Warsaw breakage syndrome

  Inheritance: AR, AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.853

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001413703.1. 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
	DDX11	NM_030653.4	MANE Select	c.167G>C	p.Cys56Ser	missense	Exon 3 of 27	NP_085911.2	Q96FC9-2
	DDX11	NM_001413703.1		c.-362G>C		5_prime_UTR_premature_start_codon_gain	Exon 2 of 26	NP_001400632.1
	DDX11	NM_001413704.1		c.-894G>C		5_prime_UTR_premature_start_codon_gain	Exon 3 of 28	NP_001400633.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DDX11	ENST00000542838.6	TSL:1 MANE Select	c.167G>C	p.Cys56Ser	missense	Exon 3 of 27	ENSP00000443426.1	Q96FC9-2
	DDX11	ENST00000545668.5	TSL:1	c.167G>C	p.Cys56Ser	missense	Exon 3 of 27	ENSP00000440402.1	Q96FC9-1
	DDX11	ENST00000228264.10	TSL:1	c.89G>C	p.Cys30Ser	missense	Exon 3 of 27	ENSP00000228264.6	Q96FC9-3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459896 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726240

African (AFR) AF: 0.00 AC: 0 AN: 33410

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86168

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4316

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111820

Other (OTH) AF: 0.00 AC: 0 AN: 60216

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.72
BayesDel_addAF	Pathogenic	0.18	D
BayesDel_noAF	Uncertain	0.030
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Benign	0.26	T
Eigen	Pathogenic	0.81
Eigen_PC	Pathogenic	0.69
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.067	D
MetaRNN	Pathogenic	0.85	D
MetaSVM	Uncertain	-0.065	T
PhyloP100		6.8
PrimateAI	Pathogenic	0.88	D
PROVEAN	Pathogenic	-9.0	D
REVEL	Uncertain	0.49
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.88
MutPred		0.60		Gain of catalytic residue at L52 (P = 0)
MVP		0.71
ClinPred		1.0	D
GERP RS		3.5
Varity_R		0.92
gMVP		0.88
Mutation Taster		=28/72	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: rs376076534; hg19: chr12-31236769;