17-40162736-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_007359.5(CASC3):​c.620G>A​(p.Arg207His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,518 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

CASC3
NM_007359.5 missense

Scores

5
8
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.69
Variant links:
Genes affected
CASC3 (HGNC:17040): (CASC3 exon junction complex subunit) The product of this gene is a core component of the exon junction complex (EJC), a protein complex that is deposited on spliced mRNAs at exon-exon junctions and functions in nonsense-mediated mRNA decay (NMD). The encoded protein binds RNA and interacts with two other EJC core components. It is predominantly located in the cytoplasm, but shuttles into the nucleus where it localizes to nuclear speckles. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CASC3NM_007359.5 linkuse as main transcriptc.620G>A p.Arg207His missense_variant 6/14 ENST00000264645.12
CASC3XM_005257163.3 linkuse as main transcriptc.620G>A p.Arg207His missense_variant 6/14
CASC3XM_047435623.1 linkuse as main transcriptc.620G>A p.Arg207His missense_variant 6/9
CASC3XM_047435624.1 linkuse as main transcriptc.-299G>A 5_prime_UTR_variant 7/15

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CASC3ENST00000264645.12 linkuse as main transcriptc.620G>A p.Arg207His missense_variant 6/141 NM_007359.5 P1
CASC3ENST00000418132.7 linkuse as main transcriptn.851G>A non_coding_transcript_exon_variant 6/81
CASC3ENST00000474190.1 linkuse as main transcriptc.281G>A p.Arg94His missense_variant, NMD_transcript_variant 3/63

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152124
Hom.:
0
Cov.:
31
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:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251114
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135726
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461394
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
726982
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152124
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74316
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:
0.0000147
Gnomad4 OTH
AF:
0.000478
Bravo
AF:
0.0000302
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 GeneticsJul 21, 2021The c.620G>A (p.R207H) alteration is located in exon 6 (coding exon 6) of the CASC3 gene. This alteration results from a G to A substitution at nucleotide position 620, causing the arginine (R) at amino acid position 207 to be replaced by a histidine (H). 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
0.85
BayesDel_addAF
Uncertain
0.059
T
BayesDel_noAF
Benign
-0.14
CADD
Pathogenic
33
DANN
Uncertain
0.98
DEOGEN2
Benign
0.085
T
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.025
T
MetaRNN
Uncertain
0.43
T
MetaSVM
Uncertain
-0.12
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Benign
-1.7
N
REVEL
Uncertain
0.39
Sift
Uncertain
0.020
D
Sift4G
Uncertain
0.0080
D
Polyphen
1.0
D
Vest4
0.50
MutPred
0.43
Loss of MoRF binding (P = 0.0304);
MVP
0.48
MPC
2.0
ClinPred
0.70
D
GERP RS
4.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.20
gMVP
0.32

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: rs748600426; hg19: chr17-38318989; COSMIC: COSV52868136; COSMIC: COSV52868136; API