rs182816010

Variant names:

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_001039141.3(TRIOBP):c.4103G>A(p.Arg1368Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000936 in 1,613,264 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 Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1368W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00038 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000064 ( 0 hom. )

Consequence

TRIOBP
NM_001039141.3 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.750

Publications

2 publications found

Variant links:

Genes affected

TRIOBP (HGNC:17009): (TRIO and F-actin binding protein) This gene encodes a protein with an N-terminal pleckstrin homology domain and a C-terminal coiled-coil region. The protein interacts with trio, which is involved with neural tissue development and controlling actin cytoskeleton organization, cell motility and cell growth. The protein also associates with F-actin and stabilizes F-actin structures. Mutations in this gene have been associated with a form of autosomal recessive nonsyndromic deafness. Multiple alternatively spliced transcript variants that would encode different isoforms have been found for this gene, however some transcripts may be subject to nonsense-mediated decay (NMD). [provided by RefSeq, Nov 2008]

TRIOBP Gene-Disease associations (from GenCC):

autosomal recessive nonsyndromic hearing loss 28
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), PanelApp Australia
hearing loss, autosomal recessive
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet

TRIOBP links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.009719998).

BP6

Variant 22-37734439-G-A is Benign according to our data. Variant chr22-37734439-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 504688.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 = 0.000381 (58/152280) while in subpopulation AFR AF = 0.00125 (52/41562). AF 95% confidence interval is 0.00098. There are 0 homozygotes in GnomAd4. There are 27 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRIOBP	NM_001039141.3 link	c.4103G>A	p.Arg1368Gln	missense_variant	Exon 9 of 24	ENST00000644935.1	NP_001034230.1	Q9H2D6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TRIOBP	ENST00000644935.1 link	c.4103G>A	p.Arg1368Gln	missense_variant	Exon 9 of 24		NM_001039141.3	ENSP00000496394.1	Q9H2D6-1
TRIOBP	ENST00000344404.10 link	n.*3586G>A		non_coding_transcript_exon_variant	Exon 7 of 22	2		ENSP00000340312.6	H7BXW4
TRIOBP	ENST00000344404.10 link	n.*3586G>A		3_prime_UTR_variant	Exon 7 of 22	2		ENSP00000340312.6	H7BXW4

Frequencies

GnomAD3 genomes

AF:

0.000381

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00125

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000580

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

GnomAD2 exomes

AF:

0.000158

AC:

AN:

247292

AF XY:

0.000104

show subpopulations

Gnomad AFR exome

AF:

0.00124

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000279

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000898

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000637

AC:

AN:

1460984

Hom.:

Cov.:

AF XY:

0.0000550

AC XY:

AN XY:

726776

show subpopulations

African (AFR)

AF:

0.00108

AC:

AN:

33480

American (AMR)

AF:

0.000112

AC:

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.000554

AC:

AN:

39692

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52664

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000207

AC:

AN:

1111930

Other (OTH)

AF:

0.0000662

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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

AF:

0.000381

AC:

AN:

152280

Hom.:

Cov.:

AF XY:

0.000363

AC XY:

AN XY:

74454

show subpopulations

African (AFR)

AF:

0.00125

AC:

AN:

41562

American (AMR)

AF:

0.000196

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000581

AC:

AN:

5160

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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

Alfa

AF:

0.000266

Hom.:

Bravo

AF:

0.000499

ESP6500AA

AF:

0.00154

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000141

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Nov 13, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nov 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

TRIOBP: BP4 -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

not specified

Benign:1

Jul 21, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

p.Arg1368Gln in exon 9 of TRIOBP: This variant is not expected to have clinical significance due to a lack of conservation across species, including mammals. Of note, >5 mammals have a glutamine (Gln) at this position despite high nearby am ino acid conservation. In addition, computational prediction tools do not sugges t a high likelihood of impact to the protein. It has been identified in 0.1% (9/ 9264) of African chromosomes by the Exome Aggregation Consortium (ExAC, http://e xac.broadinstitute.org; dbSNP rs182816010). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.65

BayesDel_noAF

Benign

-0.76

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.028

T;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.025

LIST_S2

Benign

0.44

.;T

M_CAP

Benign

0.0039

MetaRNN

Benign

0.0097

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

L;L

PhyloP100

-0.75

PrimateAI

Benign

0.26

PROVEAN

Benign

-0.64

N;.

REVEL

Benign

0.0090

Sift

Benign

0.34

T;.

Sift4G

Benign

0.30

T;.

Polyphen

0.12

B;B

Vest4

0.058

MVP

0.23

MPC

0.13

ClinPred

0.0052

GERP RS

-0.16

Varity_R

0.022

gMVP

0.092

Mutation Taster

=96/4

polymorphism

(source)

Splicing

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