Genetic Variant NM_022769.5:c.1387C>G (chr15-90638566-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_022769.5(CRTC3):c.1387C>G(p.Arg463Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,848 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R463S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CRTC3
NM_022769.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.713

Publications

5 publications found

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:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.046667665).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022769.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CRTC3	NM_022769.5	MANE Select	c.1387C>G	p.Arg463Gly	missense	Exon 12 of 15	NP_073606.3	Q6UUV7-1
CRTC3	NM_001042574.3		c.1387C>G	p.Arg463Gly	missense	Exon 12 of 15	NP_001036039.1	Q6UUV7-3
CRTC3-AS1	NR_120372.1		n.509+2476G>C		intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CRTC3	ENST00000268184.11	TSL:1 MANE Select	c.1387C>G	p.Arg463Gly	missense	Exon 12 of 15	ENSP00000268184.6	Q6UUV7-1
CRTC3	ENST00000420329.6	TSL:2	c.1387C>G	p.Arg463Gly	missense	Exon 12 of 15	ENSP00000416573.2	Q6UUV7-3
CRTC3	ENST00000686240.1		n.*800C>G		non_coding_transcript_exon	Exon 11 of 14	ENSP00000508866.1	A0A8I5KTH9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000800

AC:

AN:

249866

AF XY:

0.0000148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460848

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726784

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52562

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111888

Other (OTH)

AF:

0.00

AC:

AN:

60382

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.075

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.62

CADD

Benign

9.5

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.074

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.58

FATHMM_MKL

Benign

0.46

LIST_S2

Benign

0.71

M_CAP

Benign

0.0066

MetaRNN

Benign

0.047

MetaSVM

Benign

-0.99

MutationAssessor

Benign

1.4

PhyloP100

0.71

PrimateAI

Benign

0.27

PROVEAN

Benign

-0.21

REVEL

Benign

0.029

Sift

Benign

0.61

Sift4G

Benign

0.51

Polyphen

0.039

Vest4

0.21

MutPred

0.23

Loss of solvent accessibility (P = 0.0329)

MVP

0.043

MPC

0.064

ClinPred

0.25

GERP RS

2.6

Varity_R

0.12

gMVP

0.28

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over