22-37738701-C-G

Position:

chr22-37738701-C-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS1

The NM_001039141.3(TRIOBP):c.5166C>G(p.Asp1722Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000114 in 1,613,844 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00056 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

TRIOBP
NM_001039141.3 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.214

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 links:

LOC124905115 (HGNC:):

LOC124905115 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.007089138).

BP6

Variant 22-37738701-C-G is Benign according to our data. Variant chr22-37738701-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 165598.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr22-37738701-C-G is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.0000677 (99/1461760) while in subpopulation AFR AF= 0.00239 (80/33478). AF 95% confidence interval is 0.00197. There are 0 homozygotes in gnomad4_exome. There are 41 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TRIOBP	NM_001039141.3 linkuse as main transcript	c.5166C>G	p.Asp1722Glu	missense_variant	10/24	ENST00000644935.1	NP_001034230.1	Q9H2D6-1
LOC124905115	XM_047441691.1 linkuse as main transcript	c.*844G>C		3_prime_UTR_variant	3/3		XP_047297647.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
TRIOBP	ENST00000644935.1 linkuse as main transcript	c.5166C>G	p.Asp1722Glu	missense_variant	10/24		NM_001039141.3	ENSP00000496394.1	Q9H2D6-1
TRIOBP	ENST00000344404.10 linkuse as main transcript	n.*4649C>G		non_coding_transcript_exon_variant	8/22	2		ENSP00000340312.6	H7BXW4
TRIOBP	ENST00000344404.10 linkuse as main transcript	n.*4649C>G		3_prime_UTR_variant	8/22	2		ENSP00000340312.6	H7BXW4

Frequencies

GnomAD3 genomes

AF:

0.000559

AC:

AN:

151966

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00201

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000156

AC:

AN:

249276

Hom.:

AF XY:

0.000118

AC XY:

AN XY:

135350

show subpopulations

Gnomad AFR exome

AF:

0.00220

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS 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:

0.0000677

AC:

AN:

1461760

Hom.:

Cov.:

AF XY:

0.0000564

AC XY:

AN XY:

727164

show subpopulations

Gnomad4 AFR exome

AF:

0.00239

Gnomad4 AMR exome

AF:

0.000201

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.000559

AC:

AN:

152084

Hom.:

Cov.:

AF XY:

0.000525

AC XY:

AN XY:

74348

show subpopulations

Gnomad4 AFR

AF:

0.00200

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000285

Hom.:

Bravo

AF:

0.000748

ESP6500AA

AF:

0.000989

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000149

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Jul 25, 2013

Asp1722Glu in exon 10 of TRIOBP: This variant is not expected to have clinical s ignificance due to a lack of conservation across species, including mammals. Of note, mouse and guinea pig have a glutamic acid (Glu) at this position despite h igh nearby amino acid conservation. In addition, computational analyses (PolyPhe n2, SIFT, AlignGVGD) do not suggest a high likelihood of impact to the protein a nd this variant has been identified in 0.1% (4/4044) of African American chromos omes by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS/; d bSNP rs183189469). -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 18, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.68

BayesDel_noAF

Benign

-0.76

CADD

Benign

DANN

Benign

0.93

DEOGEN2

Benign

0.016

T;T

Eigen

Benign

-0.90

Eigen_PC

Benign

-0.83

FATHMM_MKL

Benign

0.18

LIST_S2

Benign

0.33

.;T

M_CAP

Benign

0.0042

MetaRNN

Benign

0.0071

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.8

L;L

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.28

N;.

REVEL

Benign

0.11

Sift

Benign

0.031

D;.

Sift4G

Benign

0.99

T;.

Polyphen

0.0050

B;B

Vest4

0.031

MutPred

0.061

Gain of methylation at K1724 (P = 0.1283);Gain of methylation at K1724 (P = 0.1283);

MVP

0.25

MPC

0.11

ClinPred

0.0065

GERP RS

-1.2

Varity_R

0.059

gMVP

0.049

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over