rs2835774

chr21-37502929-A-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001347721.2(DYRK1A):c.1213-2354A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.547 in 152,078 control chromosomes in the GnomAD database, including 23,303 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 0.55 (23303 hom., cov: 33)
  • Failed GnomAD Quality Control
• Consequence: DYRK1A NM_001347721.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0410

Genes affected

DYRK1A (HGNC:3091): (dual specificity tyrosine phosphorylation regulated kinase 1A) This gene encodes a member of the Dual-specificity tyrosine phosphorylation-regulated kinase (DYRK) family. This member contains a nuclear targeting signal sequence, a protein kinase domain, a leucine zipper motif, and a highly conservative 13-consecutive-histidine repeat. It catalyzes its autophosphorylation on serine/threonine and tyrosine residues. It may play a significant role in a signaling pathway regulating cell proliferation and may be involved in brain development. This gene is a homolog of Drosophila mnb (minibrain) gene and rat Dyrk gene. It is localized in the Down syndrome critical region of chromosome 21, and is considered to be a strong candidate gene for learning defects associated with Down syndrome. Alternative splicing of this gene generates several transcript variants differing from each other either in the 5' UTR or in the 3' coding region. These variants encode at least five different isoforms. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.03).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.668 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DYRK1A	NM_001347721.2	c.1213-2354A>T		intron_variant		ENST00000647188.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DYRK1A	ENST00000647188.2	c.1213-2354A>T		intron_variant			NM_001347721.2	P1

Frequencies

GnomAD3 genomes AF: 0.547 AC: 83061 AN: 151958 Hom.: 23270 Cov.: 33

Gnomad AFR AF: 0.674

Gnomad AMI AF: 0.387

Gnomad AMR AF: 0.471

Gnomad ASJ AF: 0.506

Gnomad EAS AF: 0.434

Gnomad SAS AF: 0.551

Gnomad FIN AF: 0.511

Gnomad MID AF: 0.551

Gnomad NFE AF: 0.503

Gnomad OTH AF: 0.565

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

GnomAD4 genome AF: 0.547 AC: 83149 AN: 152078 Hom.: 23303 Cov.: 33 AF XY: 0.542 AC XY: 40327 AN XY: 74336

Gnomad4 AFR AF: 0.675

Gnomad4 AMR AF: 0.470

Gnomad4 ASJ AF: 0.506

Gnomad4 EAS AF: 0.432

Gnomad4 SAS AF: 0.552

Gnomad4 FIN AF: 0.511

Gnomad4 NFE AF: 0.503

Gnomad4 OTH AF: 0.567

Alfa AF: 0.537 Hom.: 2794

Bravo AF: 0.548

Asia WGS AF: 0.516 AC: 1795 AN: 3474

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
Cadd	Benign	0.86
Dann	Benign	0.30

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: rs2835774; hg19: chr21-38875232;