rs727505081

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_001039141.3(TRIOBP):​c.4645C>T​(p.Arg1549Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000219 in 1,461,158 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

TRIOBP
NM_001039141.3 missense

Scores

2
17

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.213
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.09719834).
BP6
Variant 22-37734981-C-T is Benign according to our data. Variant chr22-37734981-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 179724.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr22-37734981-C-T is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TRIOBPNM_001039141.3 linkuse as main transcriptc.4645C>T p.Arg1549Cys missense_variant 9/24 ENST00000644935.1 NP_001034230.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TRIOBPENST00000644935.1 linkuse as main transcriptc.4645C>T p.Arg1549Cys missense_variant 9/24 NM_001039141.3 ENSP00000496394 A2Q9H2D6-1
TRIOBPENST00000344404.10 linkuse as main transcriptc.*4128C>T 3_prime_UTR_variant, NMD_transcript_variant 7/222 ENSP00000340312

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248718
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135218
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000219
AC:
32
AN:
1461158
Hom.:
0
Cov.:
36
AF XY:
0.0000206
AC XY:
15
AN XY:
726866
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:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000261
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMay 06, 2014Arg1549Cys in exon 9 of TRIOBP: This variant is not expected to have clinical s ignificance due to a lack of conservation across species, including mammals. Of note, two mammals (sheep and aardvark) have a cysteine (Cys) at this position. I n addition, computational prediction tools do not suggest a high likelihood of i mpact to the protein. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.77
CADD
Benign
14
DANN
Uncertain
1.0
DEOGEN2
Benign
0.056
T;T
Eigen
Benign
-0.98
Eigen_PC
Benign
-0.95
FATHMM_MKL
Benign
0.062
N
LIST_S2
Benign
0.42
.;T
M_CAP
Benign
0.0063
T
MetaRNN
Benign
0.097
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N;N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-1.6
N;.
REVEL
Benign
0.015
Sift
Uncertain
0.017
D;.
Sift4G
Benign
0.12
T;.
Polyphen
0.0020
B;B
Vest4
0.050
MutPred
0.34
Gain of catalytic residue at P1548 (P = 0.0046);Gain of catalytic residue at P1548 (P = 0.0046);
MVP
0.30
MPC
0.16
ClinPred
0.16
T
GERP RS
2.3
Varity_R
0.13
gMVP
0.033

Splicing

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: rs727505081; hg19: chr22-38130988; API