Genetic Variant CAP2:p.Arg180Pro (chr6-17513857-G-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_006366.3(CAP2):c.539G>C(p.Arg180Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000206 in 1,456,314 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CAP2
NM_006366.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.81

Variant links:

Genes affected

CAP2 (HGNC:20039): (cyclase associated actin cytoskeleton regulatory protein 2) This gene was identified by its similarity to the gene for human adenylyl cyclase-associated protein. The function of the protein encoded by this gene is unknown. However, the protein appears to be able to interact with adenylyl cyclase-associated protein and actin. [provided by RefSeq, Jul 2008]

CAP2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CAP2	NM_006366.3 link	c.539G>C	p.Arg180Pro	missense_variant	Exon 7 of 13	ENST00000229922.7	NP_006357.1	P40123-1Q5JPJ8
CAP2	NM_001363534.2 link	c.461G>C	p.Arg154Pro	missense_variant	Exon 6 of 12		NP_001350463.1
CAP2	NM_001363533.2 link	c.301-25412G>C		intron_variant	Intron 4 of 9		NP_001350462.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CAP2	ENST00000229922.7 link	c.539G>C	p.Arg180Pro	missense_variant	Exon 7 of 13	1	NM_006366.3	ENSP00000229922.2		P40123-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251386

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135870

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000206

AC:

AN:

1456314

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724974

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00000271

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 19, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.539G>C (p.R180P) alteration is located in exon 7 (coding exon 6) of the CAP2 gene. This alteration results from a G to C substitution at nucleotide position 539, causing the arginine (R) at amino acid position 180 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

Pathogenic

0.72

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Uncertain

0.040

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.095

T;.

Eigen

Pathogenic

0.73

Eigen_PC

Pathogenic

0.70

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.97

D;D

M_CAP

Benign

0.020

MetaRNN

Uncertain

0.71

D;D

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.8

M;.

PrimateAI

Uncertain

0.74

PROVEAN

Uncertain

-2.4

N;N

REVEL

Uncertain

0.31

Sift

Benign

0.056

T;T

Sift4G

Benign

0.15

T;T

Polyphen

1.0

D;D

Vest4

0.77

MutPred

0.51

Loss of MoRF binding (P = 0.006);.;

MVP

0.48

MPC

1.1

ClinPred

0.94

GERP RS

5.0

Varity_R

0.64

gMVP

0.84

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