21-37512454-A-T

Position:

chr21-37512454-A-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 1P and 15B. PP2BP4_ModerateBP6_Very_StrongBS1BS2_Supporting

The NM_001347721.2(DYRK1A):c.2188A>T(p.Met730Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000138 in 1,614,122 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M730V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

DYRK1A
NM_001347721.2 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 4.13

Variant links:

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]

DYRK1A links:

DYRK1A (HGNC:):

DYRK1A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), DYRK1A. . Gene score misZ 3.3441 (greater than the threshold 3.09). Trascript score misZ 4.1103 (greater than threshold 3.09). GenCC has associacion of gene with complex neurodevelopmental disorder, DYRK1A-related intellectual disability syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.13316363).

BP6

Variant 21-37512454-A-T is Benign according to our data. Variant chr21-37512454-A-T is described in ClinVar as [Likely_benign]. Clinvar id is 384537.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000131 (20/152230) while in subpopulation NFE AF= 0.00022 (15/68038). AF 95% confidence interval is 0.000135. There are 0 homozygotes in gnomad4. There are 13 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 20 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DYRK1A	NM_001347721.2 linkuse as main transcript	c.2188A>T	p.Met730Leu	missense_variant	12/12	ENST00000647188.2	NP_001334650.1	Q13627-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DYRK1A	ENST00000647188.2 linkuse as main transcript	c.2188A>T	p.Met730Leu	missense_variant	12/12		NM_001347721.2	ENSP00000494572.1		Q13627-2

Frequencies

GnomAD3 genomes

AF:

0.000131

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000220

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000835

AC:

AN:

251450

Hom.:

AF XY:

0.0000883

AC XY:

AN XY:

135892

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000138

AC:

202

AN:

1461892

Hom.:

Cov.:

AF XY:

0.000140

AC XY:

102

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000174

Gnomad4 OTH exome

AF:

0.0000993

GnomAD4 genome

AF:

0.000131

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.000121

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000220

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000831

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000576

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000296

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

DYRK1A-related intellectual disability syndrome

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 22, 2024

- -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 09, 2018

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Jan 05, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.082

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.31

CADD

Benign

DANN

Benign

0.89

DEOGEN2

Benign

0.24

.;.;T;.;.;T;T;.

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.047

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.87

.;D;.;.;.;.;D;D

M_CAP

Benign

0.0087

MetaRNN

Benign

0.13

T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.20

.;.;N;.;.;N;N;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-0.67

.;.;.;.;.;N;.;.

REVEL

Benign

0.18

Sift

Benign

0.13

.;.;.;.;.;T;.;.

Sift4G

Benign

1.0

.;.;.;.;.;T;.;.

Polyphen

0.0010

B;.;B;B;B;B;B;B

Vest4

0.40

MutPred

0.21

.;.;Gain of catalytic residue at M739 (P = 0.0669);.;.;Gain of catalytic residue at M739 (P = 0.0669);Gain of catalytic residue at M739 (P = 0.0669);.;

MVP

0.73

MPC

0.15

ClinPred

0.065

GERP RS

4.3

Varity_R

0.33

gMVP

0.43

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over