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GeneBe

chr20-35004532-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_015638.3(TRPC4AP):ā€‹c.1975A>Gā€‹(p.Ile659Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,758 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

TRPC4AP
NM_015638.3 missense

Scores

2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.79
Variant links:
Genes affected
TRPC4AP (HGNC:16181): (transient receptor potential cation channel subfamily C member 4 associated protein) Enables phosphatase binding activity and ubiquitin ligase-substrate adaptor activity. Involved in protein ubiquitination and ubiquitin-dependent protein catabolic process via the C-end degron rule pathway. Part of Cul4A-RING E3 ubiquitin ligase complex. Is active in Cul4-RING E3 ubiquitin ligase complex. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.09101099).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TRPC4APNM_015638.3 linkuse as main transcriptc.1975A>G p.Ile659Val missense_variant 17/19 ENST00000252015.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TRPC4APENST00000252015.3 linkuse as main transcriptc.1975A>G p.Ile659Val missense_variant 17/191 NM_015638.3 P4Q8TEL6-1
TRPC4APENST00000451813.6 linkuse as main transcriptc.1951A>G p.Ile651Val missense_variant 17/192 A1Q8TEL6-3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250324
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135474
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461758
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727176
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

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 GeneticsJan 04, 2022The c.1975A>G (p.I659V) alteration is located in exon 17 (coding exon 17) of the TRPC4AP gene. This alteration results from a A to G substitution at nucleotide position 1975, causing the isoleucine (I) at amino acid position 659 to be replaced by a valine (V). 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
0.081
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
21
DANN
Benign
0.70
Eigen
Benign
-0.70
Eigen_PC
Benign
-0.52
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.75
T;T
M_CAP
Benign
0.0021
T
MetaRNN
Benign
0.091
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
0.80
N;N;N;N
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-0.28
N;N
REVEL
Benign
0.065
Sift
Benign
0.42
T;T
Sift4G
Benign
0.81
T;T
Polyphen
0.062
.;B
Vest4
0.29
MutPred
0.26
.;Loss of helix (P = 0.0626);
MVP
0.043
MPC
0.24
ClinPred
0.030
T
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.030
gMVP
0.31

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: rs755562413; hg19: chr20-33592335; API