Variant 2-219551654-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_015311.3(OBSL1):c.5558A>G(p.Lys1853Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000103 in 1,459,596 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

OBSL1
NM_015311.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.23

Variant links:

Genes affected

OBSL1 (HGNC:29092): (obscurin like cytoskeletal adaptor 1) Cytoskeletal adaptor proteins function in linking the internal cytoskeleton of cells to the cell membrane. This gene encodes a cytoskeletal adaptor protein, which is a member of the Unc-89/obscurin family. The protein contains multiple N- and C-terminal immunoglobulin (Ig)-like domains and a central fibronectin type 3 domain. Mutations in this gene cause 3M syndrome type 2. Alternatively spliced transcript variants encoding different isoforms have been found in this gene. [provided by RefSeq, Mar 2010]

OBSL1 links:

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ACMG classification

Classification made for transcript

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=0.16748777).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OBSL1	NM_015311.3 linkuse as main transcript	c.5558A>G	p.Lys1853Arg	missense_variant	20/21	ENST00000404537.6	NP_056126.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OBSL1	ENST00000404537.6 linkuse as main transcript	c.5558A>G	p.Lys1853Arg	missense_variant	20/21	1	NM_015311.3	ENSP00000385636	P1	O75147-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000413

AC:

AN:

242298

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132508

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000294

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:

0.0000103

AC:

AN:

1459596

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

725972

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000126

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 13, 2022

The c.5558A>G (p.K1853R) alteration is located in exon 20 (coding exon 20) of the OBSL1 gene. This alteration results from a A to G substitution at nucleotide position 5558, causing the lysine (K) at amino acid position 1853 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.49

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.024

T;.

Eigen

Uncertain

0.25

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Benign

0.67

LIST_S2

Benign

0.65

T;T

M_CAP

Benign

0.016

MetaRNN

Benign

0.17

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

L;.

MutationTaster

Benign

1.0

D;N;N

PrimateAI

Benign

0.47

PROVEAN

Benign

-1.6

N;N

REVEL

Benign

0.16

Sift

Benign

0.65

T;T

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;.

Vest4

0.22

MutPred

0.45

Loss of ubiquitination at K1853 (P = 0.0077);.;

MVP

0.12

MPC

0.61

ClinPred

0.50

GERP RS

4.7

Varity_R

0.18

gMVP

0.35

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

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