22-37759500-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_138632.2(TRIOBP):​c.1269G>A​(p.Pro423Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000467 in 1,605,618 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

TRIOBP
NM_138632.2 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.293
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 -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 22-37759500-G-A is Benign according to our data. Variant chr22-37759500-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 504695.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TRIOBPNM_001039141.3 linkc.6324+236G>A intron_variant Intron 17 of 23 ENST00000644935.1 NP_001034230.1 Q9H2D6-1
TRIOBPNM_138632.2 linkc.1269G>A p.Pro423Pro synonymous_variant Exon 8 of 8 NP_619538.2 Q9H2D6-6
TRIOBPNM_007032.5 linkc.1185+236G>A intron_variant Intron 7 of 13 NP_008963.3 Q9H2D6-7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TRIOBPENST00000407319.7 linkc.1269G>A p.Pro423Pro synonymous_variant Exon 8 of 8 1 ENSP00000383913.2 Q9H2D6-6
TRIOBPENST00000644935.1 linkc.6324+236G>A intron_variant Intron 17 of 23 NM_001039141.3 ENSP00000496394.1 Q9H2D6-1
TRIOBPENST00000403663.6 linkc.1185+236G>A intron_variant Intron 7 of 13 1 ENSP00000386026.2 Q9H2D6-7
TRIOBPENST00000344404.10 linkn.*5807+236G>A intron_variant Intron 15 of 21 2 ENSP00000340312.6 H7BXW4

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152198
Hom.:
0
Cov.:
33
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000366
AC:
9
AN:
245996
Hom.:
0
AF XY:
0.0000225
AC XY:
3
AN XY:
133462
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000450
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000482
AC:
70
AN:
1453420
Hom.:
0
Cov.:
30
AF XY:
0.0000401
AC XY:
29
AN XY:
723512
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000551
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152198
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74366
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000615
Hom.:
0
Bravo
AF:
0.0000416
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Apr 30, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

p.Pro423Pro in exon 8 of TRIOBP (NM_138632.2): This variant is not expected to h ave clinical significance because it does not alter an amino acid residue, is no t located within the splice consensus sequence, and has been identified in 4/662 02 European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.b roadinstitute.org; dbSNP rs140572991). In addition, the variant occurs in the co ding region of one transcript isoform of the gene and lies in an intronic region in other transcript isoforms of TRIOBP (NM_001039141.2, NM_007032.5). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
10
DANN
Benign
0.70

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs140572991; hg19: chr22-38155507; API