Variant 4-3767483-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_000683.4(ADRA2C):c.877G>C(p.Glu293Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000156 in 1,220,410 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000081 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000065 ( 0 hom. )

Consequence

ADRA2C
NM_000683.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0760

Variant links:

Genes affected

ADRA2C (HGNC:283): (adrenoceptor alpha 2C) Alpha-2-adrenergic receptors are members of the G protein-coupled receptor superfamily. They include 3 highly homologous subtypes: alpha2A, alpha2B, and alpha2C. These receptors have a critical role in regulating neurotransmitter release from sympathetic nerves and from adrenergic neurons in the central nervous system. The mouse studies revealed that both the alpha2A and alpha2C subtypes were required for normal presynaptic control of transmitter release from sympathetic nerves in the heart and from central noradrenergic neurons. The alpha2A subtype inhibited transmitter release at high stimulation frequencies, whereas the alpha2C subtype modulated neurotransmission at lower levels of nerve activity. This gene encodes the alpha2C subtype, which contains no introns in either its coding or untranslated sequences. [provided by RefSeq, Jul 2008]

ADRA2C links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.09118578).

BS2

High AC in GnomAd4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ADRA2C	NM_000683.4 linkuse as main transcript	c.877G>C	p.Glu293Gln	missense_variant	1/1	ENST00000330055.7	NP_000674.2	P18825Q4W594

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ADRA2C	ENST00000330055.7 linkuse as main transcript	c.877G>C	p.Glu293Gln	missense_variant	1/1	6	NM_000683.4	ENSP00000386069.2		P18825
ADRA2C	ENST00000509482.1 linkuse as main transcript	c.877G>C	p.Glu293Gln	missense_variant	1/2	3		ENSP00000426268.1		D6RGL0

Frequencies

GnomAD3 genomes

AF:

0.0000809

AC:

AN:

148362

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000244

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000672

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000653

AC:

AN:

1071950

Hom.:

Cov.:

AF XY:

0.00000393

AC XY:

AN XY:

508276

show subpopulations

Gnomad4 AFR exome

AF:

0.0000909

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000131

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000472

GnomAD4 genome

AF:

0.0000808

AC:

AN:

148460

Hom.:

Cov.:

AF XY:

0.0000829

AC XY:

AN XY:

72380

show subpopulations

Gnomad4 AFR

AF:

0.000243

Gnomad4 AMR

AF:

0.0000671

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000869

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

Aug 10, 2021

The c.877G>C (p.E293Q) alteration is located in exon 1 (coding exon 1) of the ADRA2C gene. This alteration results from a G to C substitution at nucleotide position 877, causing the glutamic acid (E) at amino acid position 293 to be replaced by a glutamine (Q). 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

0.11

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.53

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.029

.;T

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.46

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.46

T;T

M_CAP

Benign

0.049

MetaRNN

Benign

0.091

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

.;L

MutationTaster

Benign

1.0

N;N

PrimateAI

Pathogenic

0.91

PROVEAN

Benign

-0.38

N;N

REVEL

Benign

0.054

Sift

Benign

0.27

T;T

Sift4G

Benign

0.36

T;T

Polyphen

0.17

B;B

Vest4

0.056

MutPred

0.33

Gain of glycosylation at S288 (P = 0.0219);Gain of glycosylation at S288 (P = 0.0219);

MVP

0.57

ClinPred

0.10

GERP RS

2.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.11

gMVP

0.38

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