15-90638603-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_022769.5(CRTC3):c.1424C>G(p.Ala475Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000886 in 1,613,156 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00046 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000050 ( 0 hom. )

Consequence

CRTC3
NM_022769.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.05

Variant links:

Genes affected

CRTC3 (HGNC:26148): (CREB regulated transcription coactivator 3) This gene is a member of the CREB regulated transcription coactivator gene family. This family regulates CREB-dependent gene transcription in a phosphorylation-independent manner and may be selective for cAMP-responsive genes. The protein encoded by this gene may induce mitochondrial biogenesis and attenuate catecholamine signaling in adipose tissue. A translocation event between this gene and Notch coactivator mastermind-like gene 2, which results in a fusion protein, has been reported in mucoepidermoid carcinomas. Alternative splicing results in multiple transcript variants that encode different protein isoforms. [provided by RefSeq, Jul 2012]

CRTC3 links:

CRTC3-AS1 (HGNC:51433): (CRTC3 antisense RNA 1)

CRTC3-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.009565443).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CRTC3	NM_022769.5 linkuse as main transcript	c.1424C>G	p.Ala475Gly	missense_variant	12/15	ENST00000268184.11
CRTC3-AS1	NR_120372.1 linkuse as main transcript	n.509+2439G>C		intron_variant, non_coding_transcript_variant
CRTC3	NM_001042574.3 linkuse as main transcript	c.1424C>G	p.Ala475Gly	missense_variant	12/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CRTC3	ENST00000268184.11 linkuse as main transcript	c.1424C>G	p.Ala475Gly	missense_variant	12/15	1	NM_022769.5	P3	Q6UUV7-1
CRTC3-AS1	ENST00000559531.1 linkuse as main transcript	n.510+2439G>C		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.000460

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00166

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000132

AC:

AN:

250386

Hom.:

AF XY:

0.0000664

AC XY:

AN XY:

135504

show subpopulations

Gnomad AFR exome

AF:

0.00198

Gnomad AMR exome

AF:

0.0000289

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000500

AC:

AN:

1460838

Hom.:

Cov.:

AF XY:

0.0000344

AC XY:

AN XY:

726798

show subpopulations

Gnomad4 AFR exome

AF:

0.00194

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:

0.00

Gnomad4 OTH exome

AF:

0.000132

GnomAD4 genome

AF:

0.000460

AC:

AN:

152318

Hom.:

Cov.:

AF XY:

0.000524

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.00166

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000504

Hom.:

Bravo

AF:

0.000586

ESP6500AA

AF:

0.00114

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000148

AC:

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

Mar 02, 2023

The c.1424C>G (p.A475G) alteration is located in exon 12 (coding exon 12) of the CRTC3 gene. This alteration results from a C to G substitution at nucleotide position 1424, causing the alanine (A) at amino acid position 475 to be replaced by a glycine (G). 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

0.089

BayesDel_addAF

Benign

-0.55

BayesDel_noAF

Benign

-0.57

Cadd

Benign

Dann

Benign

0.75

Eigen

Benign

-0.26

Eigen_PC

Benign

-0.22

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.74

T;T

M_CAP

Benign

0.0036

MetaRNN

Benign

0.0096

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.5

M;M

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.38

PROVEAN

Benign

-0.020

N;N

REVEL

Benign

0.055

Sift

Benign

0.32

T;T

Sift4G

Benign

0.30

T;T

Polyphen

0.57

P;B

Vest4

0.32

MVP

0.23

MPC

0.056

ClinPred

0.054

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.073

gMVP

0.18

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