rs115283876

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_015311.3(OBSL1):​c.3950T>G​(p.Leu1317Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000775 in 1,548,548 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L1317Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000043 ( 0 hom. )

Consequence

OBSL1
NM_015311.3 missense

Scores

2
13
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.54

Publications

2 publications found
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 Gene-Disease associations (from GenCC):
  • 3M syndrome 2
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
  • 3-M syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.786

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015311.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
OBSL1
NM_015311.3
MANE Select
c.3950T>Gp.Leu1317Arg
missense
Exon 12 of 21NP_056126.1O75147-3
OBSL1
NM_001173431.2
c.3950T>Gp.Leu1317Arg
missense
Exon 12 of 14NP_001166902.1O75147-4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
OBSL1
ENST00000404537.6
TSL:1 MANE Select
c.3950T>Gp.Leu1317Arg
missense
Exon 12 of 21ENSP00000385636.1O75147-3
OBSL1
ENST00000953546.1
c.3962T>Gp.Leu1321Arg
missense
Exon 12 of 21ENSP00000623605.1
OBSL1
ENST00000953548.1
c.3893T>Gp.Leu1298Arg
missense
Exon 12 of 21ENSP00000623607.1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152176
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000136
AC:
2
AN:
147334
AF XY:
0.0000252
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000813
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000430
AC:
6
AN:
1396372
Hom.:
0
Cov.:
33
AF XY:
0.00000871
AC XY:
6
AN XY:
689054
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31610
American (AMR)
AF:
0.0000839
AC:
3
AN:
35758
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25152
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35746
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79240
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
46018
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
9.27e-7
AC:
1
AN:
1079174
Other (OTH)
AF:
0.0000345
AC:
2
AN:
57976
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152176
Hom.:
0
Cov.:
34
AF XY:
0.0000404
AC XY:
3
AN XY:
74344
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.000262
AC:
4
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68022
Other (OTH)
AF:
0.000478
AC:
1
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000378

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Uncertain
0.016
T
BayesDel_noAF
Uncertain
-0.020
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.18
T
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.41
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.74
T
M_CAP
Pathogenic
0.29
D
MetaRNN
Pathogenic
0.79
D
MetaSVM
Uncertain
-0.071
T
MutationAssessor
Uncertain
2.5
M
PhyloP100
3.5
PrimateAI
Uncertain
0.69
T
PROVEAN
Uncertain
-4.0
D
REVEL
Uncertain
0.60
Sift
Uncertain
0.010
D
Sift4G
Uncertain
0.0090
D
Polyphen
1.0
D
Vest4
0.75
MutPred
0.46
Gain of disorder (P = 0.03)
MVP
0.78
MPC
0.82
ClinPred
0.94
D
GERP RS
3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.67
gMVP
0.78
Mutation Taster
=75/25
polymorphism

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

Other links and lift over

dbSNP: rs115283876; hg19: chr2-220422181; API