chr8-26656655-G-A

Position:

• chr8-26656655-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_001197293.3(DPYSL2):​c.*949G>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 0.0136 in 152,222 control chromosomes in the GnomAD database, including 53 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.014 (53 hom., cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: DPYSL2 NM_001197293.3 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.38

Genes affected

DPYSL2 (HGNC:3014): (dihydropyrimidinase like 2) This gene encodes a member of the collapsin response mediator protein family. Collapsin response mediator proteins form homo- and hetero-tetramers and facilitate neuron guidance, growth and polarity. The encoded protein promotes microtubule assembly and is required for Sema3A-mediated growth cone collapse, and also plays a role in synaptic signaling through interactions with calcium channels. This gene has been implicated in multiple neurological disorders, and hyperphosphorylation of the encoded protein may play a key role in the development of Alzheimer's disease. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Sep 2011]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0136 (2069/152222) while in subpopulation AFR AF= 0.046 (1909/41534). AF 95% confidence interval is 0.0442. There are 53 homozygotes in gnomad4. There are 1001 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 2069 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DPYSL2	NM_001197293.3	c.*949G>A		3_prime_UTR_variant	14/14	ENST00000521913.7
DPYSL2	NM_001244604.2	c.*949G>A		3_prime_UTR_variant	14/14
DPYSL2	NM_001386.6	c.*949G>A		3_prime_UTR_variant	14/14

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DPYSL2	ENST00000521913.7	c.*949G>A		3_prime_UTR_variant	14/14	1	NM_001197293.3
DPYSL2	ENST00000311151.9	c.*949G>A		3_prime_UTR_variant	14/14	1		P1

Frequencies

GnomAD3 genomes AF: 0.0136 AC: 2064 AN: 152104 Hom.: 53 Cov.: 31

Gnomad AFR AF: 0.0460

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00419

Gnomad ASJ AF: 0.0101

Gnomad EAS AF: 0.000385

Gnomad SAS AF: 0.000415

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00949

Gnomad NFE AF: 0.000441

Gnomad OTH AF: 0.0115

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 512 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 310

Gnomad4 AFR exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.0136 AC: 2069 AN: 152222 Hom.: 53 Cov.: 31 AF XY: 0.0134 AC XY: 1001 AN XY: 74432

Gnomad4 AFR AF: 0.0460

Gnomad4 AMR AF: 0.00418

Gnomad4 ASJ AF: 0.0101

Gnomad4 EAS AF: 0.000386

Gnomad4 SAS AF: 0.000416

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000441

Gnomad4 OTH AF: 0.0114

Alfa AF: 0.0176 Hom.: 6

Bravo AF: 0.0156

Asia WGS AF: 0.00231 AC: 8 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	1.2
DANN	Benign	0.47

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: rs17055641; hg19: chr8-26514171;