22-37755132-G-T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_001039141.3(TRIOBP):​c.5519G>T​(p.Arg1840Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000421 in 1,613,696 control chromosomes in the GnomAD database, including 2 homozygotes. 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. R1840C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000046 ( 2 hom. )

Consequence

TRIOBP
NM_001039141.3 missense

Scores

4
13
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.98

Publications

6 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TRIOBPNM_001039141.3 linkc.5519G>T p.Arg1840Leu missense_variant Exon 14 of 24 ENST00000644935.1 NP_001034230.1 Q9H2D6-1
TRIOBPNM_007032.5 linkc.380G>T p.Arg127Leu missense_variant Exon 4 of 14 NP_008963.3 Q9H2D6-7
TRIOBPNM_138632.2 linkc.380G>T p.Arg127Leu missense_variant Exon 4 of 8 NP_619538.2 Q9H2D6-6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TRIOBPENST00000644935.1 linkc.5519G>T p.Arg1840Leu missense_variant Exon 14 of 24 NM_001039141.3 ENSP00000496394.1 Q9H2D6-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000959
AC:
24
AN:
250368
AF XY:
0.000118
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:
0.000163
GnomAD4 exome
AF:
0.0000458
AC:
67
AN:
1461542
Hom.:
2
Cov.:
34
AF XY:
0.0000660
AC XY:
48
AN XY:
727036
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33470
American (AMR)
AF:
0.00
AC:
0
AN:
44680
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39688
South Asian (SAS)
AF:
0.000731
AC:
63
AN:
86206
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53328
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111880
Other (OTH)
AF:
0.0000662
AC:
4
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
4
9
13
18
22
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<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:
0.00000657
AC:
1
AN:
152154
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74318
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41438
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.000124
AC:
15
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 28 Uncertain:1
Nov 20, 2023
Revvity Omics, Revvity
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.70
BayesDel_addAF
Uncertain
0.043
T
BayesDel_noAF
Pathogenic
0.20
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.57
D;D;.;.;.;D;D;D
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.97
.;D;.;D;D;D;D;D
M_CAP
Uncertain
0.22
D
MetaRNN
Uncertain
0.50
T;T;T;T;T;T;T;T
MetaSVM
Pathogenic
0.82
D
MutationAssessor
Benign
1.3
L;L;.;.;.;.;.;.
PhyloP100
4.0
PrimateAI
Uncertain
0.52
T
PROVEAN
Uncertain
-4.2
D;.;D;D;.;D;D;D
REVEL
Pathogenic
0.68
Sift
Uncertain
0.0010
D;.;D;T;.;D;T;D
Sift4G
Uncertain
0.018
D;.;D;T;.;T;T;T
Polyphen
1.0
D;D;.;.;.;.;.;.
Vest4
0.67
MutPred
0.59
Loss of disorder (P = 0.0812);Loss of disorder (P = 0.0812);.;.;.;.;.;.;
MVP
0.93
MPC
0.62
ClinPred
0.40
T
GERP RS
4.8
Varity_R
0.43
gMVP
0.33
Mutation Taster
=59/41
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs376340052; hg19: chr22-38151139; API