11-104036946-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001001711.3(DDI1):c.124G>A(p.Val42Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000133 in 1,614,210 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.00054 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000090 (0 hom.)
• Consequence: DDI1 NM_001001711.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.02

Genes affected

DDI1 (HGNC:18961): (DNA damage inducible 1 homolog 1) Predicted to enable aspartic-type endopeptidase activity. Involved in several processes, including cellular response to hydroxyurea; proteasomal protein catabolic process; and regulation of DNA stability. [provided by Alliance of Genome Resources, Apr 2022]

PDGFD (HGNC:30620): (platelet derived growth factor D) The protein encoded by this gene is a member of the platelet-derived growth factor family. The four members of this family are mitogenic factors for cells of mesenchymal origin and are characterized by a core motif of eight cysteines, seven of which are found in this factor. This gene product only forms homodimers and, therefore, does not dimerize with the other three family members. It differs from alpha and beta members of this family in having an unusual N-terminal domain, the CUB domain. Two splice variants have been identified for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.018300086).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DDI1	NM_001001711.3	c.124G>A	p.Val42Ile	missense_variant	1/1	ENST00000302259.5
PDGFD	NM_025208.5	c.125-36691C>T		intron_variant		ENST00000393158.7
PDGFD	NM_033135.4	c.125-36709C>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DDI1	ENST00000302259.5	c.124G>A	p.Val42Ile	missense_variant	1/1		NM_001001711.3	P1
PDGFD	ENST00000393158.7	c.125-36691C>T		intron_variant		1	NM_025208.5	P1
PDGFD	ENST00000302251.9	c.125-36709C>T		intron_variant		1
PDGFD	ENST00000529268.1	c.81C>T	p.Asp27=	synonymous_variant	1/4	5

Frequencies

GnomAD3 genomes AF: 0.000545 AC: 83 AN: 152212 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00166

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00145

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000441

Gnomad OTH AF: 0.000957

GnomAD3 exomes AF: 0.000183 AC: 46 AN: 251476 Hom.: 0 AF XY: 0.000206 AC XY: 28 AN XY: 135918

Gnomad AFR exome AF: 0.00129

Gnomad AMR exome AF: 0.000145

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.000490

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000264

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000896 AC: 131 AN: 1461880 Hom.: 0 Cov.: 30 AF XY: 0.000107 AC XY: 78 AN XY: 727244

Gnomad4 AFR exome AF: 0.00128

Gnomad4 AMR exome AF: 0.000201

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000638

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000117

Gnomad4 OTH exome AF: 0.000182

GnomAD4 genome AF: 0.000545 AC: 83 AN: 152330 Hom.: 0 Cov.: 32 AF XY: 0.000550 AC XY: 41 AN XY: 74488

Gnomad4 AFR AF: 0.00166

Gnomad4 AMR AF: 0.000131

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00145

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000441

Gnomad4 OTH AF: 0.000947

Alfa AF: 0.000230 Hom.: 0

Bravo AF: 0.000574

ESP6500AA AF: 0.000681 AC: 3

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.000173 AC: 21

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 10, 2022

The c.124G>A (p.V42I) alteration is located in exon 1 (coding exon 1) of the DDI1 gene. This alteration results from a G to A substitution at nucleotide position 124, causing the valine (V) at amino acid position 42 to be replaced by an isoleucine (I). 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	Benign	0.082
BayesDel_addAF	Benign	-0.46	T
BayesDel_noAF	Benign	-0.46
Cadd	Benign	16
Dann	Benign	0.95
DEOGEN2	Benign	0.0045	T
Eigen	Benign	-0.58
Eigen_PC	Benign	-0.66
FATHMM_MKL	Benign	0.20	N
LIST_S2	Benign	0.85	D
M_CAP	Benign	0.036	D
MetaRNN	Benign	0.018	T
MetaSVM	Benign	-0.94	T
MutationAssessor	Benign	1.7	L
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.27	T
PROVEAN	Benign	-0.67	N
REVEL	Benign	0.14
Sift	Benign	0.18	T
Sift4G	Benign	0.38	T
Polyphen		0.54	P
Vest4		0.098
MVP		0.69
MPC		0.33
ClinPred		0.020	T
GERP RS		1.8
Varity_R		0.032
gMVP		0.23

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

Publications

LitVar

Other links and lift over

dbSNP: rs147776291; hg19: chr11-103907674; COSMIC: COSV56378490;