rs780379130

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001039141.3(TRIOBP):​c.5575C>G​(p.His1859Asp) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000745 in 1,611,234 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

TRIOBP
NM_001039141.3 missense, splice_region

Scores

11
7
1
Splicing: ADA: 0.9069
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.68

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.874

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TRIOBPNM_001039141.3 linkc.5575C>G p.His1859Asp missense_variant, splice_region_variant Exon 14 of 24 ENST00000644935.1 NP_001034230.1
TRIOBPNM_007032.5 linkc.436C>G p.His146Asp missense_variant, splice_region_variant Exon 4 of 14 NP_008963.3
TRIOBPNM_138632.2 linkc.436C>G p.His146Asp missense_variant, splice_region_variant Exon 4 of 8 NP_619538.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TRIOBPENST00000644935.1 linkc.5575C>G p.His1859Asp missense_variant, splice_region_variant Exon 14 of 24 NM_001039141.3 ENSP00000496394.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152204
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000409
AC:
1
AN:
244580
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000644
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:
0.00
GnomAD4 exome
AF:
0.00000685
AC:
10
AN:
1459030
Hom.:
0
Cov.:
33
AF XY:
0.00000551
AC XY:
4
AN XY:
725616
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33396
American (AMR)
AF:
0.00
AC:
0
AN:
44456
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26092
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39422
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85710
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53144
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00000810
AC:
9
AN:
1110752
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60294
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152204
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74352
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41440
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68040
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.00000756
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Mar 03, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.His1859Asp variant in TRIOBP has not previously been reported in individua ls with hearing loss, but has been identified in 1/7906 of African chromosomes b y the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org). Altho ugh this variant has been seen in the general population, its frequency is not h igh enough to rule out a pathogenic role. Computational prediction tools and con servation analyses suggest that the p.His1859Asp variant may impact the protein, though this information is not predictive enough to determine pathogenicity. Ho wever, this information is not predictive enough to rule out pathogenicity. In s ummary, the clinical significance of this variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.97
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Pathogenic
0.24
CADD
Pathogenic
34
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.62
D;D;.;.;.;D;D;D
Eigen
Pathogenic
0.74
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.97
.;D;.;D;D;D;D;D
M_CAP
Uncertain
0.19
D
MetaRNN
Pathogenic
0.87
D;D;D;D;D;D;D;D
MetaSVM
Uncertain
-0.26
T
MutationAssessor
Uncertain
2.2
M;M;.;.;.;.;.;.
PhyloP100
5.7
PrimateAI
Pathogenic
0.82
D
PROVEAN
Pathogenic
-6.8
D;.;D;D;.;D;D;D
REVEL
Pathogenic
0.81
Sift
Uncertain
0.0010
D;.;D;D;.;D;D;D
Sift4G
Uncertain
0.0030
D;.;D;D;.;D;D;D
Polyphen
1.0
D;D;.;.;.;.;.;.
Vest4
0.70
MutPred
0.66
Loss of methylation at K1861 (P = 0.0438);Loss of methylation at K1861 (P = 0.0438);.;.;.;.;.;.;
MVP
0.96
MPC
0.63
ClinPred
0.89
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.76
gMVP
0.65
Mutation Taster
=84/16
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.91
dbscSNV1_RF
Benign
0.61
SpliceAI score (max)
0.27
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.27
Position offset: 10

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

Publications

Other links and lift over

dbSNP: rs780379130; hg19: chr22-38151195; API