chr5-14143759-G-A

Variant names:

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBS1BS2

The NM_007118.4(TRIO):c.34G>A(p.Ala12Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000343 in 993,654 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

TRIO
NM_007118.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -1.18

Variant links:

Genes affected

TRIO (HGNC:12303): (trio Rho guanine nucleotide exchange factor) This gene encodes a large protein that functions as a GDP to GTP exchange factor. This protein promotes the reorganization of the actin cytoskeleton, thereby playing a role in cell migration and growth. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

TRIO links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

PP2

Missense variant in the TRIO gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 31 curated pathogenic missense variants (we use a threshold of 10). The gene has 80 curated benign missense variants. Gene score misZ: 5.3161 (above the threshold of 3.09). Trascript score misZ: 4.6722 (above the threshold of 3.09). GenCC associations: The gene is linked to intellectual disability, autosomal dominant 40, syndromic intellectual disability, intellectual developmental disorder, autosomal dominant 63, with macrocephaly, micrognathia-recurrent infections-behavioral abnormalities-mild intellectual disability syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.056898147).

BP6

Variant 5-14143759-G-A is Benign according to our data. Variant chr5-14143759-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 785114.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr5-14143759-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00129 (188/146150) while in subpopulation AFR AF= 0.00409 (167/40842). AF 95% confidence interval is 0.00358. There are 0 homozygotes in gnomad4. There are 105 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

BS2

High AC in GnomAd4 at 188 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRIO	NM_007118.4 link	c.34G>A	p.Ala12Thr	missense_variant	Exon 1 of 57	ENST00000344204.9	NP_009049.2	O75962-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TRIO	ENST00000344204.9 link	c.34G>A	p.Ala12Thr	missense_variant	Exon 1 of 57	1	NM_007118.4	ENSP00000339299.4	O75962-1
TRIO	ENST00000698541.1 link	c.34G>A	p.Ala12Thr	missense_variant	Exon 1 of 37			ENSP00000513786.1	A0A8V8TLX5
TRIO	ENST00000502816.1 link	n.58G>A		non_coding_transcript_exon_variant	Exon 1 of 5	2
TRIO	ENST00000505971.5 link	n.58G>A		non_coding_transcript_exon_variant	Exon 1 of 4	3

Frequencies

GnomAD3 genomes

AF:

0.00127

AC:

186

AN:

146086

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00405

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000950

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00645

Gnomad NFE

AF:

0.0000760

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.000181

AC:

153

AN:

847504

Hom.:

Cov.:

AF XY:

0.000181

AC XY:

AN XY:

392810

show subpopulations

Gnomad4 AFR exome

AF:

0.00560

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000583

Gnomad4 OTH exome

AF:

0.000567

GnomAD4 genome

AF:

0.00129

AC:

188

AN:

146150

Hom.:

Cov.:

AF XY:

0.00148

AC XY:

105

AN XY:

71090

show subpopulations

Gnomad4 AFR

AF:

0.00409

Gnomad4 AMR

AF:

0.000948

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000761

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000925

Hom.:

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:6

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Dec 31, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Aug 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

TRIO: BS1 -

Mar 20, 2020

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

TRIO-related disorder

Benign:1

Feb 16, 2024

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Inborn genetic diseases

Benign:1

Apr 03, 2021

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.049

Eigen

Benign

-0.89

Eigen_PC

Benign

-0.82

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.41

M_CAP

Pathogenic

0.86

MetaRNN

Benign

0.057

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.34

PrimateAI

Pathogenic

0.82

PROVEAN

Benign

-0.17

REVEL

Benign

0.14

Sift

Pathogenic

0.0

Sift4G

Benign

0.38

Polyphen

0.0

Vest4

0.20

MutPred

0.15

Gain of glycosylation at A12 (P = 0.0011);

MVP

0.34

MPC

0.81

ClinPred

0.16

GERP RS

1.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.11

gMVP

0.16

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over