17-4970436-C-G

Variant names:

• chr17-4970436-C-G
• rs764788058
• NM_015099.4:c.2909G>C

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_015099.4(CAMTA2):​c.2909G>C​(p.Arg970Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000929 in 1,614,026 control chromosomes in the GnomAD database, with no homozygous occurrence. 14/22 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. R970Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000089 (0 hom.)
• Consequence: CAMTA2 NM_015099.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.344
• Publications: 1 publications found

Genes affected

CAMTA2 (HGNC:18807): (calmodulin binding transcription activator 2) The protein encoded by this gene is a member of the calmodulin-binding transcription activator protein family. Members of this family share a common domain structure that consists of a transcription activation domain, a DNA-binding domain, and a calmodulin-binding domain. The encoded protein may be a transcriptional coactivator of genes involved in cardiac growth. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Jan 2010]

ENSG00000234203 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BS2: High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CAMTA2	NM_015099.4	c.2909G>C	p.Arg970Pro	missense_variant	Exon 17 of 23	ENST00000348066.8	NP_055914.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CAMTA2	ENST00000348066.8	c.2909G>C	p.Arg970Pro	missense_variant	Exon 17 of 23	1	NM_015099.4	ENSP00000321813.7

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152152 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000119 AC: 3 AN: 251454 AF XY: 0.00000736

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000176

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000889 AC: 13 AN: 1461874 Hom.: 0 Cov.: 31 AF XY: 0.00000963 AC XY: 7 AN XY: 727240

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000108 AC: 12 AN: 1112000

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152152 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74344

African (AFR) AF: 0.0000241 AC: 1 AN: 41420

American (AMR) AF: 0.00 AC: 0 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5172

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68026

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.0000450 Hom.: 0

Bravo AF: 0.0000416

ExAC AF: 0.00000824 AC: 1

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Feb 07, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2978G>C (p.R993P) alteration is located in exon 17 (coding exon 17) of the CAMTA2 gene. This alteration results from a G to C substitution at nucleotide position 2978, causing the arginine (R) at amino acid position 993 to be replaced by a proline (P). 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	0.17
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.29
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Benign	0.0075	.;.;T;.;T
Eigen	Benign	-0.17
Eigen_PC	Benign	-0.19
FATHMM_MKL	Benign	0.51	D
LIST_S2	Benign	0.84	T;T;T;T;T
M_CAP	Benign	0.016	T
MetaRNN	Uncertain	0.53	D;D;D;D;D
MetaSVM	Benign	-0.92	T
MutationAssessor	Benign	1.1	.;.;.;.;L
PhyloP100		-0.34
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-0.71	N;N;.;N;N
REVEL	Benign	0.15
Sift	Uncertain	0.026	D;D;.;D;D
Sift4G	Benign	0.27	T;T;T;T;T
Polyphen		1.0, 0.96, 0.93	.;D;.;D;P
Vest4		0.64
MutPred		0.43		.;.;.;.;Loss of methylation at R970 (P = 0.0443);
MVP		0.56
MPC		0.56
ClinPred		0.26	T
GERP RS		3.0
Varity_R		0.27
gMVP		0.54
Mutation Taster		=78/22	polymorphism

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

Other links and lift over

dbSNP: rs764788058; hg19: chr17-4873731;