Genetic Variant CAPS:p.Ile23Thr (chr19-5914474-T-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_004058.5(CAPS):c.68T>C(p.Ile23Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000745 in 1,611,762 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

CAPS
NM_004058.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.57

Publications

0 publications found

Variant links:

Genes affected

CAPS (HGNC:1487): (calcyphosine) This gene encodes a calcium-binding protein, which may play a role in the regulation of ion transport. A similar protein was first described as a potentially important regulatory protein in the dog thyroid and was termed as R2D5 antigen in rabbit. Alternative splicing of this gene generates two transcript variants. [provided by RefSeq, Jul 2008]

CAPS links:

ENSG00000267314 (HGNC:):

ENSG00000267314 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.765

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CAPS	NM_004058.5 link	c.68T>C	p.Ile23Thr	missense_variant	Exon 2 of 5	ENST00000588776.8	NP_004049.3	Q13938-4A0A384NYV7Q96ET4
CAPS	NM_080590.4 link	c.68T>C	p.Ile23Thr	missense_variant	Exon 2 of 5		NP_542157.3	Q13938

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CAPS	ENST00000588776.8 link	c.68T>C	p.Ile23Thr	missense_variant	Exon 2 of 5	1	NM_004058.5	ENSP00000465883.2	Q13938-4
ENSG00000267314	ENST00000588891.1 link	n.*163T>C		non_coding_transcript_exon_variant	Exon 3 of 4	4		ENSP00000468419.1	K7ERU9
ENSG00000267314	ENST00000588891.1 link	n.*163T>C		3_prime_UTR_variant	Exon 3 of 4	4		ENSP00000468419.1	K7ERU9

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000160

AC:

AN:

249958

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.000248

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000617

AC:

AN:

1459590

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

725826

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

33456

American (AMR)

AF:

0.00

AC:

AN:

44676

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26110

East Asian (EAS)

AF:

0.00

AC:

AN:

39664

South Asian (SAS)

AF:

0.00

AC:

AN:

86192

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52400

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000450

AC:

AN:

1111008

Other (OTH)

AF:

0.00

AC:

AN:

60318

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74344

show subpopulations

African (AFR)

AF:

0.0000724

AC:

AN:

41428

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000330

Hom.:

Bravo

AF:

0.0000567

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 18, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.68T>C (p.I23T) alteration is located in exon 2 (coding exon 1) of the CAPS gene. This alteration results from a T to C substitution at nucleotide position 68, causing the isoleucine (I) at amino acid position 23 to be replaced by a threonine (T). 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

0.93

BayesDel_addAF

Uncertain

0.062

BayesDel_noAF

Uncertain

0.13

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.080

.;.;T

Eigen

Pathogenic

0.73

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.97

D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.77

D;D;D

MetaSVM

Uncertain

0.50

PhyloP100

3.6

PrimateAI

Uncertain

0.65

REVEL

Uncertain

0.46

Sift4G

Pathogenic

0.0010

D;D;D

Vest4

0.78

MVP

0.86

ClinPred

0.99

GERP RS

5.3

PromoterAI

0.0055

Neutral

(source)

Varity_R

0.75

Mutation Taster

=79/21

polymorphism

(source)

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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19-5914474-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over