chr20-56437174-C-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_020356.4(CASS4):​c.47C>A​(p.Ala16Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000009 in 1,555,660 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 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000057 ( 0 hom. )

Consequence

CASS4
NM_020356.4 missense

Scores

8
9
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.21
Variant links:
Genes affected
CASS4 (HGNC:15878): (Cas scaffold protein family member 4) Enables protein tyrosine kinase binding activity. Involved in several processes, including positive regulation of protein kinase B signaling; positive regulation of protein tyrosine kinase activity; and positive regulation of substrate adhesion-dependent cell spreading. Located in focal adhesion. Part of cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.95

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CASS4NM_020356.4 linkuse as main transcriptc.47C>A p.Ala16Asp missense_variant 2/6 ENST00000679887.1 NP_065089.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CASS4ENST00000679887.1 linkuse as main transcriptc.47C>A p.Ala16Asp missense_variant 2/6 NM_020356.4 ENSP00000506506 P2Q9NQ75-1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152232
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000237
AC:
5
AN:
211218
Hom.:
0
AF XY:
0.0000178
AC XY:
2
AN XY:
112582
show subpopulations
Gnomad AFR exome
AF:
0.000318
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000570
AC:
8
AN:
1403428
Hom.:
0
Cov.:
31
AF XY:
0.00000435
AC XY:
3
AN XY:
690438
show subpopulations
Gnomad4 AFR exome
AF:
0.0000933
Gnomad4 AMR exome
AF:
0.0000259
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:
0.00000278
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152232
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74378
show subpopulations
Gnomad4 AFR
AF:
0.000121
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000658
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.0000165
AC:
2

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 submitterclinical testingAmbry GeneticsFeb 17, 2022The c.47C>A (p.A16D) alteration is located in exon 3 (coding exon 2) of the CASS4 gene. This alteration results from a C to A substitution at nucleotide position 47, causing the alanine (A) at amino acid position 16 to be replaced by an aspartic acid (D). 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
0.99
BayesDel_addAF
Uncertain
0.070
D
BayesDel_noAF
Pathogenic
0.16
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.45
T;.
Eigen
Pathogenic
0.92
Eigen_PC
Pathogenic
0.82
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Benign
0.043
D
MetaRNN
Pathogenic
0.95
D;D
MetaSVM
Uncertain
-0.22
T
MutationAssessor
Pathogenic
4.0
H;H
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Pathogenic
-5.3
D;D
REVEL
Pathogenic
0.65
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.0020
D;D
Polyphen
1.0
D;D
Vest4
0.95
MutPred
0.87
Gain of ubiquitination at K12 (P = 0.0548);Gain of ubiquitination at K12 (P = 0.0548);
MVP
0.45
ClinPred
0.99
D
GERP RS
4.8
Varity_R
0.85
gMVP
0.99

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.

Other links and lift over

dbSNP: rs748253287; hg19: chr20-55012230; API