1-112667143-T-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_006135.3(CAPZA1):c.655T>A(p.Ser219Thr) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000625 in 1,600,456 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. 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. S219L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000063 ( 1 hom. )

Consequence

CAPZA1
NM_006135.3 missense, splice_region

Scores

Splicing: ADA: 0.001444

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.24

Variant links:

Genes affected

CAPZA1 (HGNC:1488): (capping actin protein of muscle Z-line subunit alpha 1) CAPZA1 is a member of the F-actin capping protein alpha subunit family. This gene encodes the alpha subunit of the barbed-end actin binding protein. The protein regulates growth of the actin filament by capping the barbed end of growing actin filaments. [provided by RefSeq, Jul 2008]

CAPZA1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.107887775).

BS2

High AC in GnomAd at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CAPZA1	NM_006135.3 linkuse as main transcript	c.655T>A	p.Ser219Thr	missense_variant, splice_region_variant	8/10	ENST00000263168.4
CAPZA1	XM_017002424.3 linkuse as main transcript	c.655T>A	p.Ser219Thr	missense_variant, splice_region_variant	8/10
CAPZA1	XM_011542225.4 linkuse as main transcript	c.*87T>A		3_prime_UTR_variant	9/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
CAPZA1	ENST00000263168.4 linkuse as main transcript	c.655T>A	p.Ser219Thr	missense_variant, splice_region_variant	8/10	1	NM_006135.3	P1
CAPZA1	ENST00000466066.1 linkuse as main transcript	n.521T>A		splice_region_variant, non_coding_transcript_exon_variant	2/4	2
CAPZA1	ENST00000476820.1 linkuse as main transcript	n.224T>A		splice_region_variant, non_coding_transcript_exon_variant	1/2	3
CAPZA1	ENST00000476936.5 linkuse as main transcript	n.410T>A		splice_region_variant, non_coding_transcript_exon_variant	6/8	3

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152256

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000722

AC:

AN:

249172

Hom.:

AF XY:

0.0000519

AC XY:

AN XY:

134838

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000893

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:

0.000132

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000628

AC:

AN:

1448200

Hom.:

Cov.:

AF XY:

0.0000624

AC XY:

AN XY:

721252

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000114

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:

0.0000763

Gnomad4 OTH exome

AF:

0.0000334

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152256

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74390

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000838

Hom.:

Bravo

AF:

0.0000907

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000576

AC:

EpiCase

AF:

0.0000546

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 14, 2022

The c.655T>A (p.S219T) alteration is located in exon 8 (coding exon 8) of the CAPZA1 gene. This alteration results from a T to A substitution at nucleotide position 655, causing the serine (S) at amino acid position 219 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

Benign

0.062

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.61

Cadd

Benign

Dann

Benign

0.88

DEOGEN2

Benign

0.032

Eigen

Benign

-0.44

Eigen_PC

Benign

-0.27

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.77

M_CAP

Benign

0.0071

MetaRNN

Benign

0.11

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.52

MutationTaster

Benign

0.97

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-0.37

REVEL

Benign

0.20

Sift

Benign

0.46

Sift4G

Benign

0.69

Polyphen

0.0

Vest4

0.30

MVP

0.27

MPC

0.23

ClinPred

0.046

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.068

gMVP

0.29

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0014

dbscSNV1_RF

Benign

0.020

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