Variant 22-18910922-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_005675.6(DGCR6):c.407C>T(p.Ala136Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A136T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 0)

Exomes 𝑓: 0.000030 ( 1 hom. )

Failed GnomAD Quality Control

Consequence

DGCR6
NM_005675.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.980

Variant links:

Genes affected

DGCR6 (HGNC:2846): (DiGeorge syndrome critical region gene 6) DiGeorge syndrome, and more widely, the CATCH 22 syndrome, are associated with microdeletions in chromosomal region 22q11.2. The product of this gene shares homology with the Drosophila melanogaster gonadal protein, which participates in gonadal and germ cell development, and with the gamma-1 subunit of human laminin. This gene is a candidate for involvement in DiGeorge syndrome pathology and in schizophrenia. [provided by RefSeq, Nov 2008]

DGCR6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.16353843).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DGCR6	NM_005675.6 linkuse as main transcript	c.407C>T	p.Ala136Val	missense_variant	4/5	ENST00000331444.12
DGCR6	XM_047441510.1 linkuse as main transcript	c.200C>T	p.Ala67Val	missense_variant	4/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DGCR6	ENST00000331444.12 linkuse as main transcript	c.407C>T	p.Ala136Val	missense_variant	4/5	1	NM_005675.6	P1	Q14129-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000160

AC:

AN:

249964

Hom.:

AF XY:

0.00000738

AC XY:

AN XY:

135524

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000300

AC:

AN:

66688

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

35276

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.0000600

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 19, 2022

The c.407C>T (p.A136V) alteration is located in exon 4 (coding exon 4) of the DGCR6 gene. This alteration results from a C to T substitution at nucleotide position 407, causing the alanine (A) at amino acid position 136 to be replaced by a valine (V). 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

0.096

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.66

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.036

T;.

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.097

FATHMM_MKL

Benign

0.17

M_CAP

Benign

0.0099

MetaRNN

Benign

0.16

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

L;.

MutationTaster

Benign

1.0

D;N

PrimateAI

Benign

0.32

PROVEAN

Benign

-0.96

N;.

REVEL

Benign

0.092

Sift

Benign

0.22

T;.

Sift4G

Benign

0.25

T;.

Polyphen

0.65

P;.

Vest4

0.18

MutPred

0.40

Loss of disorder (P = 0.09);Loss of disorder (P = 0.09);

MVP

0.62

MPC

0.13

ClinPred

0.34

GERP RS

3.8

Varity_R

0.11

gMVP

0.24

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