7-116917781-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PM5PP3_Strong

The NM_006136.3(CAPZA2):​c.775C>T​(p.Arg259Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000687 in 1,454,996 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R259L) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CAPZA2
NM_006136.3 missense

Scores

12
5
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.87
Variant links:
Genes affected
CAPZA2 (HGNC:1490): (capping actin protein of muscle Z-line subunit alpha 2) The protein encoded by this gene is a member of the F-actin capping protein alpha subunit family. It is the alpha subunit of the barbed-end actin binding protein Cap Z. By capping the barbed end of actin filaments, Cap Z regulates the growth of the actin filaments at the barbed end. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr7-116917782-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 830216.We mark this variant Likely_pathogenic, oryginal submissions are: {Pathogenic=1, Uncertain_significance=1}.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.942

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CAPZA2NM_006136.3 linkuse as main transcriptc.775C>T p.Arg259Cys missense_variant 10/10 ENST00000361183.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CAPZA2ENST00000361183.8 linkuse as main transcriptc.775C>T p.Arg259Cys missense_variant 10/101 NM_006136.3 P1P47755-1
CAPZA2ENST00000426421.5 linkuse as main transcriptc.*270C>T 3_prime_UTR_variant, NMD_transcript_variant 10/105
CAPZA2ENST00000496161.1 linkuse as main transcript downstream_gene_variant 2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.87e-7
AC:
1
AN:
1454996
Hom.:
0
Cov.:
27
AF XY:
0.00
AC XY:
0
AN XY:
724328
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:
9.04e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.43
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.47
T
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.82
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D
M_CAP
Benign
0.024
T
MetaRNN
Pathogenic
0.94
D
MetaSVM
Uncertain
0.014
D
MutationAssessor
Pathogenic
3.7
H
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.89
D
PROVEAN
Pathogenic
-7.4
D
REVEL
Pathogenic
0.71
Sift
Uncertain
0.024
D
Sift4G
Uncertain
0.019
D
Polyphen
0.91
P
Vest4
0.77
MutPred
0.85
Loss of MoRF binding (P = 0.0047);
MVP
0.67
MPC
3.1
ClinPred
0.99
D
GERP RS
5.8
Varity_R
0.67
gMVP
0.86

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-116557835; COSMIC: COSV63266832; COSMIC: COSV63266832; API