chr9-116699096-C-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_012210.4(TRIM32):c.1354C>A(p.Leu452Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000123 in 1,461,696 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign 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. L452F) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000012 ( 1 hom. )

Consequence

TRIM32
NM_012210.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.94

Publications

0 publications found

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]

TRIM32 links:

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]

ASTN2 Gene-Disease associations (from GenCC):

autism spectrum disorder
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
intellectual disability
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ASTN2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.21943122).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRIM32	NM_012210.4 link	c.1354C>A	p.Leu452Ile	missense_variant	Exon 2 of 2	ENST00000450136.2	NP_036342.2	Q13049A0A024R843
ASTN2	NM_001365068.1 link	c.2806+26675G>T		intron_variant	Intron 16 of 22	ENST00000313400.9	NP_001351997.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRIM32	ENST00000450136.2 link	c.1354C>A	p.Leu452Ile	missense_variant	Exon 2 of 2	1	NM_012210.4	ENSP00000408292.1		Q13049
ASTN2	ENST00000313400.9 link	c.2806+26675G>T		intron_variant	Intron 16 of 22	5	NM_001365068.1	ENSP00000314038.4		O75129-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000199

AC:

AN:

251226

AF XY:

0.0000368

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000123

AC:

AN:

1461696

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727148

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33462

American (AMR)

AF:

0.00

AC:

AN:

44696

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000174

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111890

Other (OTH)

AF:

0.0000166

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

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

Bardet-Biedl syndrome

Uncertain:1

Aug 06, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 452 of the TRIM32 protein (p.Leu452Ile). This variant is present in population databases (rs747067557, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with TRIM32-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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

0.081

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.26

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.10

T;T

Eigen

Benign

-0.15

Eigen_PC

Benign

0.083

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.86

D;.

M_CAP

Benign

0.062

MetaRNN

Benign

0.22

T;T

MetaSVM

Benign

-0.49

MutationAssessor

Benign

0.34

N;N

PhyloP100

3.9

PrimateAI

Uncertain

0.65

PROVEAN

Benign

0.96

N;N

REVEL

Benign

0.25

Sift

Benign

0.15

T;T

Sift4G

Benign

0.061

T;T

Polyphen

0.0010

B;B

Vest4

0.19

MutPred

0.60

Gain of catalytic residue at L457 (P = 0.0212);Gain of catalytic residue at L457 (P = 0.0212);

MVP

0.90

MPC

0.26

ClinPred

0.11

GERP RS

4.5

Varity_R

0.092

gMVP

0.13

Mutation Taster

=69/31

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over