22-37755132-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM5BS2

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. R1840H) 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
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr22-37755132-G-A is described in Lovd as [Pathogenic].
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TRIOBPNM_001039141.3 linkuse as main transcriptc.5519G>T p.Arg1840Leu missense_variant 14/24 ENST00000644935.1
TRIOBPNM_007032.5 linkuse as main transcriptc.380G>T p.Arg127Leu missense_variant 4/14
TRIOBPNM_138632.2 linkuse as main transcriptc.380G>T p.Arg127Leu missense_variant 4/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TRIOBPENST00000644935.1 linkuse as main transcriptc.5519G>T p.Arg1840Leu missense_variant 14/24 NM_001039141.3 A2Q9H2D6-1

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
GnomAD3 exomes
AF:
0.0000959
AC:
24
AN:
250368
Hom.:
1
AF XY:
0.000118
AC XY:
16
AN XY:
135446
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 SAS exome
AF:
0.000753
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
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000731
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000662
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
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
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
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityNov 20, 2023- -

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;.;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;D
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

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs376340052; hg19: chr22-38151139; API