chr5-177512163-G-A

Variant names:

• chr5-177512163-G-A
• rs1356103698
• NM_016222.4:c.1665C>T

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Strong BP6 BP7

The NM_016222.4(DDX41):​c.1665C>T​(p.Ala555Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000157 in 1,461,360 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A555A) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000016 (0 hom.)
• Consequence: DDX41 NM_016222.4 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:2
• Conservation: PhyloP100: 0.298
• Publications: 0 publications found

Genes affected

DDX41 (HGNC:18674): (DEAD-box helicase 41) 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 the DEAD box protein family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. The protein encoded by this gene is a member of the DEAD box protein family and interacts with several spliceosomal proteins. In addition, the encoded protein may recognize the bacterial second messengers cyclic di-GMP and cyclic di-AMP, resulting in the induction of genes involved in the innate immune response. [provided by RefSeq, Jan 2017]

DDX41 Gene-Disease associations (from GenCC):

• DDX41-related hematologic malignancy predisposition syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, ClinGen, Ambry Genetics
• acromesomelic dysplasia

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.49).
• BP6: Variant 5-177512163-G-A is Benign according to our data. Variant chr5-177512163-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 434913.
• BP7: Synonymous conserved (PhyloP=0.298 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016222.4. 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
	DDX41	NM_016222.4	MANE Select	c.1665C>T	p.Ala555Ala	synonymous	Exon 16 of 17	NP_057306.2
	DDX41	NM_001321732.2		c.1287C>T	p.Ala429Ala	synonymous	Exon 15 of 16	NP_001308661.1
	DDX41	NM_001321830.2		c.1287C>T	p.Ala429Ala	synonymous	Exon 16 of 17	NP_001308759.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DDX41	ENST00000330503.12	TSL:1 MANE Select	c.1665C>T	p.Ala555Ala	synonymous	Exon 16 of 17	ENSP00000330349.8
	DDX41	ENST00000507955.6	TSL:1	n.*873C>T		non_coding_transcript_exon	Exon 16 of 17	ENSP00000422753.2
	DDX41	ENST00000507955.6	TSL:1	n.*873C>T		3_prime_UTR	Exon 16 of 17	ENSP00000422753.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000800 AC: 2 AN: 250064 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000109

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000157 AC: 23 AN: 1461360 Hom.: 0 Cov.: 59 AF XY: 0.0000151 AC XY: 11 AN XY: 726990

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.000554 AC: 22 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52900

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112012

Other (OTH) AF: 0.0000166 AC: 1 AN: 60388

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	-	1	Inborn genetic diseases (1)
-	-	1	not provided (1)
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.49
CADD	Benign	10
DANN	Benign	0.83
PhyloP100		0.30
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=96/4	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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: rs1356103698; hg19: chr5-176939164;