19-41319711-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_052848.3(CCDC97):c.640G>A(p.Gly214Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000117 in 1,613,778 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000099 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00012 (0 hom.)
• Consequence: CCDC97 NM_052848.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.836

Genes affected

CCDC97 (HGNC:28289): (coiled-coil domain containing 97)

TGFB1 (HGNC:11766): (transforming growth factor beta 1) This gene encodes a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. The encoded preproprotein is proteolytically processed to generate a latency-associated peptide (LAP) and a mature peptide, and is found in either a latent form composed of a mature peptide homodimer, a LAP homodimer, and a latent TGF-beta binding protein, or in an active form consisting solely of the mature peptide homodimer. The mature peptide may also form heterodimers with other TGFB family members. This encoded protein regulates cell proliferation, differentiation and growth, and can modulate expression and activation of other growth factors including interferon gamma and tumor necrosis factor alpha. This gene is frequently upregulated in tumor cells, and mutations in this gene result in Camurati-Engelmann disease. [provided by RefSeq, Aug 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1359126).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CCDC97	NM_052848.3	c.640G>A	p.Gly214Arg	missense_variant	3/5	ENST00000269967.4
CCDC97	NM_001346100.2	c.445G>A	p.Gly149Arg	missense_variant	3/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CCDC97	ENST00000269967.4	c.640G>A	p.Gly214Arg	missense_variant	3/5	1	NM_052848.3	P1
TGFB1	ENST00000598758.5	n.302+12417C>T		intron_variant, non_coding_transcript_variant		5
CCDC97	ENST00000600918.1			upstream_gene_variant		2

Frequencies

GnomAD3 genomes AF: 0.0000986 AC: 15 AN: 152124 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000724

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000558 AC: 14 AN: 250824 Hom.: 0 AF XY: 0.0000590 AC XY: 8 AN XY: 135610

Gnomad AFR exome AF: 0.000123

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000980

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000795

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000119 AC: 174 AN: 1461654 Hom.: 0 Cov.: 32 AF XY: 0.000118 AC XY: 86 AN XY: 727122

Gnomad4 AFR exome AF: 0.0000896

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.000302

Gnomad4 SAS exome AF: 0.0000464

Gnomad4 FIN exome AF: 0.0000187

Gnomad4 NFE exome AF: 0.000134

Gnomad4 OTH exome AF: 0.0000828

GnomAD4 genome AF: 0.0000986 AC: 15 AN: 152124 Hom.: 0 Cov.: 33 AF XY: 0.000121 AC XY: 9 AN XY: 74310

Gnomad4 AFR AF: 0.0000724

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000147

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000178 Hom.: 0

Bravo AF: 0.000117

ExAC AF: 0.0000330 AC: 4

EpiCase AF: 0.000164

EpiControl AF: 0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 06, 2022

The c.640G>A (p.G214R) alteration is located in exon 3 (coding exon 3) of the CCDC97 gene. This alteration results from a G to A substitution at nucleotide position 640, causing the glycine (G) at amino acid position 214 to be replaced by an arginine (R). 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	0.12
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.29
Cadd	Benign	18
Dann	Uncertain	1.0
DEOGEN2	Benign	0.029	T
Eigen	Benign	-0.85
Eigen_PC	Benign	-0.85
FATHMM_MKL	Benign	0.55	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.14	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.075	N
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.095
Sift	Uncertain	0.011	D
Sift4G	Uncertain	0.027	D
Polyphen		0.065	B
Vest4		0.54
MutPred		0.47		Gain of solvent accessibility (P = 0.0037);
MVP		0.22
MPC		0.85
ClinPred		0.12	T
GERP RS		2.5
Varity_R		0.063
gMVP		0.38

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs759164631; hg19: chr19-41825616; COSMIC: COSV54192049; COSMIC: COSV54192049;