NM_007118.4:c.7391C>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_007118.4(TRIO):c.7391C>T(p.Ala2464Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00125 in 1,593,756 control chromosomes in the GnomAD database, including 24 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0069 ( 12 hom., cov: 32)

Exomes 𝑓: 0.00065 ( 12 hom. )

Consequence

TRIO
NM_007118.4 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.69

Publications

5 publications found

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 Gene-Disease associations (from GenCC):

syndromic intellectual disability
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Illumina
intellectual developmental disorder, autosomal dominant 63, with macrocephaly
Inheritance: AD Classification: STRONG, MODERATE Submitted by: G2P, Ambry Genetics
micrognathia-recurrent infections-behavioral abnormalities-mild intellectual disability syndrome
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet

TRIO links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.002985239).

BP6

Variant 5-14488019-C-T is Benign according to our data. Variant chr5-14488019-C-T is described in ClinVar as Benign. ClinVar VariationId is 445920.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00694 (1056/152124) while in subpopulation AFR AF = 0.024 (998/41530). AF 95% confidence interval is 0.0228. There are 12 homozygotes in GnomAd4. There are 518 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 1056 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRIO	NM_007118.4 link	c.7391C>T	p.Ala2464Val	missense_variant	Exon 48 of 57	ENST00000344204.9	NP_009049.2	O75962-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRIO	ENST00000344204.9 link	c.7391C>T	p.Ala2464Val	missense_variant	Exon 48 of 57	1	NM_007118.4	ENSP00000339299.4		O75962-1

Frequencies

GnomAD3 genomes

AF:

0.00691

AC:

1050

AN:

152012

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0240

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00288

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:

0.0000442

Gnomad OTH

AF:

0.00526

GnomAD2 exomes

AF:

0.00146

AC:

293

AN:

200460

AF XY:

0.000999

show subpopulations

Gnomad AFR exome

AF:

0.0237

Gnomad AMR exome

AF:

0.00125

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000480

Gnomad OTH exome

AF:

0.000397

GnomAD4 exome

AF:

0.000651

AC:

938

AN:

1441632

Hom.:

Cov.:

AF XY:

0.000549

AC XY:

393

AN XY:

715514

show subpopulations

African (AFR)

AF:

0.0238

AC:

780

AN:

32838

American (AMR)

AF:

0.00116

AC:

AN:

43060

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25660

East Asian (EAS)

AF:

0.00

AC:

AN:

38432

South Asian (SAS)

AF:

0.0000120

AC:

AN:

83288

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49908

Middle Eastern (MID)

AF:

0.000552

AC:

AN:

5434

European-Non Finnish (NFE)

AF:

0.0000190

AC:

AN:

1103548

Other (OTH)

AF:

0.00140

AC:

AN:

59464

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

115

173

230

288

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

104

130

<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

AF:

0.00694

AC:

1056

AN:

152124

Hom.:

Cov.:

AF XY:

0.00696

AC XY:

518

AN XY:

74378

show subpopulations

African (AFR)

AF:

0.0240

AC:

998

AN:

41530

American (AMR)

AF:

0.00287

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5120

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000442

AC:

AN:

67926

Other (OTH)

AF:

0.00520

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

104

157

209

261

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00244

Hom.:

Bravo

AF:

0.00773

ESP6500AA

AF:

0.0218

AC:

ESP6500EA

AF:

0.000136

AC:

ExAC

AF:

0.00177

AC:

204

Asia WGS

AF:

0.00173

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:4

Oct 22, 2019

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dec 31, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 28, 2017

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

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

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.32

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.047

T;T

Eigen

Benign

-0.60

Eigen_PC

Benign

-0.67

FATHMM_MKL

Benign

0.35

LIST_S2

Benign

0.61

T;T

MetaRNN

Benign

0.0030

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.90

L;.

PhyloP100

1.7

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-0.46

N;.

REVEL

Benign

0.20

Sift

Benign

0.19

T;.

Sift4G

Benign

0.35

T;T

Polyphen

0.99

D;.

Vest4

0.10

MVP

0.51

MPC

0.43

ClinPred

0.0051

GERP RS

2.8

PromoterAI

-0.011

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.033

gMVP

0.23

Mutation Taster

=99/1

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

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over