rs774316527

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_012210.4(TRIM32):​c.1046C>G​(p.Ala349Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000044 in 1,614,014 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

TRIM32
NM_012210.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 2.73
Variant links:
Genes affected
TRIM32 (HGNC:16380): (tripartite motif containing 32) The protein encoded by this gene is a member of the tripartite motif (TRIM) family. The TRIM motif includes three zinc-binding domains, a RING, a B-box type 1 and a B-box type 2, and a coiled-coil region. The protein localizes to cytoplasmic bodies. The protein has also been localized to the nucleus, where it interacts with the activation domain of the HIV-1 Tat protein. The Tat protein activates transcription of HIV-1 genes. [provided by RefSeq, Jul 2008]
ASTN2 (HGNC:17021): (astrotactin 2) This gene encodes a protein that is expressed in the brain and may function in neuronal migration, based on functional studies of the related astrotactin 1 gene in human and mouse. A deletion at this locus has been associated with schizophrenia. Multiple transcript variants encoding different proteins have been found for this locus. [provided by RefSeq, May 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.061137527).
BS1
Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000465 (68/1461880) while in subpopulation SAS AF= 0.000707 (61/86258). AF 95% confidence interval is 0.000564. There are 0 homozygotes in gnomad4_exome. There are 46 alleles in male gnomad4_exome subpopulation. Median coverage is 30. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TRIM32NM_012210.4 linkc.1046C>G p.Ala349Gly missense_variant Exon 2 of 2 ENST00000450136.2 NP_036342.2 Q13049A0A024R843
ASTN2NM_001365068.1 linkc.2806+26983G>C intron_variant Intron 16 of 22 ENST00000313400.9 NP_001351997.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TRIM32ENST00000450136.2 linkc.1046C>G p.Ala349Gly missense_variant Exon 2 of 2 1 NM_012210.4 ENSP00000408292.1 Q13049
ASTN2ENST00000313400.9 linkc.2806+26983G>C intron_variant Intron 16 of 22 5 NM_001365068.1 ENSP00000314038.4 O75129-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152134
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000107
AC:
27
AN:
251298
Hom.:
0
AF XY:
0.000140
AC XY:
19
AN XY:
135842
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000621
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.0000465
AC:
68
AN:
1461880
Hom.:
0
Cov.:
30
AF XY:
0.0000633
AC XY:
46
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000707
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152134
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74292
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000378
ExAC
AF:
0.0000906
AC:
11

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Feb 21, 2017
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

TRIM32-related disorder Uncertain:1
Dec 31, 2023
PreventionGenetics, part of Exact Sciences
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

The TRIM32 c.1046C>G variant is predicted to result in the amino acid substitution p.Ala349Gly. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.062% of alleles in individuals of South Asian descent in gnomAD, which may be too frequent for a disease-causing variant. Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Sarcotubular myopathy;C1859569:Bardet-Biedl syndrome 11 Uncertain:1
Apr 06, 2022
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Bardet-Biedl syndrome Uncertain:1
Jul 12, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 349 of the TRIM32 protein (p.Ala349Gly). This variant is present in population databases (rs774316527, gnomAD 0.06%). This variant has not been reported in the literature in individuals affected with TRIM32-related conditions. ClinVar contains an entry for this variant (Variation ID: 462945). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glycine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.078
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
15
DANN
Benign
0.82
DEOGEN2
Benign
0.096
T;T
Eigen
Benign
-0.58
Eigen_PC
Benign
-0.48
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.70
T;.
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.061
T;T
MetaSVM
Benign
-0.86
T
MutationAssessor
Uncertain
2.0
M;M
PrimateAI
Benign
0.42
T
PROVEAN
Benign
0.66
N;N
REVEL
Benign
0.11
Sift
Benign
0.15
T;T
Sift4G
Benign
0.073
T;T
Polyphen
0.099
B;B
Vest4
0.056
MutPred
0.27
Gain of sheet (P = 0.0344);Gain of sheet (P = 0.0344);
MVP
0.91
MPC
0.26
ClinPred
0.029
T
GERP RS
3.0
Varity_R
0.031
gMVP
0.21

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: rs774316527; hg19: chr9-119461067; API