rs372134073

Positions:

• chr22-37723839-C-A
• chr22-37723839-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001039141.3(TRIOBP):​c.1283C>A​(p.Pro428His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P428R) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 27)
• Consequence: TRIOBP NM_001039141.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0100

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15822509).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TRIOBP	NM_001039141.3	c.1283C>A	p.Pro428His	missense_variant	7/24	ENST00000644935.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TRIOBP	ENST00000644935.1	c.1283C>A	p.Pro428His	missense_variant	7/24		NM_001039141.3	A2
TRIOBP	ENST00000492485.5	n.1217C>A		non_coding_transcript_exon_variant	5/5	1
TRIOBP	ENST00000344404.10	c.*766C>A		3_prime_UTR_variant, NMD_transcript_variant	5/22	2

Frequencies

GnomAD3 genomes Cov.: 27

GnomAD4 exome Cov.: 56

GnomAD4 genome Cov.: 27

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.46
CADD	Benign	14
DANN	Benign	0.94
DEOGEN2	Benign	0.035	T;T
Eigen	Benign	-0.52
Eigen_PC	Benign	-0.73
FATHMM_MKL	Benign	0.22	N
M_CAP	Benign	0.0072	T
MetaRNN	Benign	0.16	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.3	M;M
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.23	T
PROVEAN	Benign	-1.0	N;.
REVEL	Benign	0.070
Sift	Pathogenic	0.0	D;.
Sift4G	Uncertain	0.0030	D;.
Polyphen		0.99	D;D
Vest4		0.24
MutPred		0.22		Loss of stability (P = 0.0719);Loss of stability (P = 0.0719);
MVP		0.36
MPC		0.53
ClinPred		0.45	T
GERP RS		1.5
Varity_R		0.11
gMVP		0.038

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		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

Other links and lift over

dbSNP: rs372134073; hg19: chr22-38119846;