19-44973121-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_001294.4(CLPTM1):​c.220C>T​(p.Arg74Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000991 in 1,613,844 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. 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. R74H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000096 ( 1 hom. )

Consequence

CLPTM1
NM_001294.4 missense

Scores

12
4
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.10
Variant links:
Genes affected
CLPTM1 (HGNC:2087): (CLPTM1 regulator of GABA type A receptor forward trafficking) Predicted to be involved in regulation of T cell differentiation in thymus. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.887
BS2
High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CLPTM1NM_001294.4 linkuse as main transcriptc.220C>T p.Arg74Cys missense_variant 3/14 ENST00000337392.10
CLPTM1NM_001282175.2 linkuse as main transcriptc.178C>T p.Arg60Cys missense_variant 3/14
CLPTM1NM_001282176.2 linkuse as main transcriptc.-87C>T 5_prime_UTR_variant 3/14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CLPTM1ENST00000337392.10 linkuse as main transcriptc.220C>T p.Arg74Cys missense_variant 3/141 NM_001294.4 P1O96005-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152224
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:
0.0000120
AC:
3
AN:
249068
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
134870
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000654
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000897
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461620
Hom.:
1
Cov.:
30
AF XY:
0.0000110
AC XY:
8
AN XY:
727108
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:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000720
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152224
Hom.:
0
Cov.:
31
AF XY:
0.0000134
AC XY:
1
AN XY:
74368
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:
0.00000378
ExAC
AF:
0.00000824
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
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 GeneticsApr 19, 2024The c.220C>T (p.R74C) alteration is located in exon 3 (coding exon 3) of the CLPTM1 gene. This alteration results from a C to T substitution at nucleotide position 220, causing the arginine (R) at amino acid position 74 to be replaced by a cysteine (C). 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
0.91
BayesDel_addAF
Pathogenic
0.33
D
BayesDel_noAF
Pathogenic
0.41
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.32
.;T;T
Eigen
Pathogenic
0.83
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.97
D;D;D
M_CAP
Benign
0.026
D
MetaRNN
Pathogenic
0.89
D;D;D
MetaSVM
Uncertain
-0.044
T
MutationAssessor
Uncertain
2.6
.;M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Pathogenic
-5.9
D;D;.
REVEL
Uncertain
0.63
Sift
Pathogenic
0.0
D;D;.
Sift4G
Uncertain
0.0040
D;D;D
Polyphen
1.0
.;D;.
Vest4
0.90
MutPred
0.74
.;Loss of MoRF binding (P = 0.0213);Loss of MoRF binding (P = 0.0213);
MVP
0.59
MPC
2.1
ClinPred
0.97
D
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.87
gMVP
0.94

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: rs778256603; hg19: chr19-45476378; API