rs750216083

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PM5PP2

The NM_199342.4(SVBP):​c.146T>G​(p.Leu49Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,722 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. L49P) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SVBP
NM_199342.4 missense

Scores

6
5
7

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.53

Publications

0 publications found
Variant links:
Genes affected
SVBP (HGNC:29204): (small vasohibin binding protein) Enables microtubule binding activity. Involved in axon development; proteolysis; and regulation of metallopeptidase activity. Acts upstream of or within negative regulation of endothelial cell migration; negative regulation of protein ubiquitination; and protein secretion. Located in apical part of cell. [provided by Alliance of Genome Resources, Apr 2022]
TMEM269 (HGNC:52381): (transmembrane protein 269) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr1-42807469-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2500213.Status of the report is criteria_provided_single_submitter, 1 stars.
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 1 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 0.3744 (below the threshold of 3.09). Trascript score misZ: 0.51921 (below the threshold of 3.09). GenCC associations: The gene is linked to syndromic intellectual disability.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SVBPNM_199342.4 linkc.146T>G p.Leu49Arg missense_variant Exon 3 of 3 ENST00000372521.9 NP_955374.1 Q8N300
SVBPXM_017001226.2 linkc.146T>G p.Leu49Arg missense_variant Exon 3 of 3 XP_016856715.1 Q8N300

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SVBPENST00000372521.9 linkc.146T>G p.Leu49Arg missense_variant Exon 3 of 3 1 NM_199342.4 ENSP00000361599.4 Q8N300
SVBPENST00000372522.5 linkc.146T>G p.Leu49Arg missense_variant Exon 3 of 3 3 ENSP00000361600.1 Q8N300
TMEM269ENST00000421630.6 linkn.*196-1559A>C intron_variant Intron 8 of 10 5 ENSP00000490287.1 A0A1B0GVZ9

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461722
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
727174
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53406
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111886
Other (OTH)
AF:
0.00
AC:
0
AN:
60392
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
Heterozygous variant carriers
0
0
1
1
2
2
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
Cov.:
31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.89
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.15
CADD
Pathogenic
27
DANN
Uncertain
0.99
DEOGEN2
Benign
0.15
T;T
Eigen
Uncertain
0.43
Eigen_PC
Uncertain
0.47
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.83
.;T
M_CAP
Benign
0.079
D
MetaRNN
Uncertain
0.70
D;D
MetaSVM
Benign
-0.59
T
PhyloP100
6.5
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-4.7
D;D
REVEL
Benign
0.28
Sift
Pathogenic
0.0
D;D
Sift4G
Benign
0.28
T;T
Polyphen
0.80
P;P
Vest4
0.90
MutPred
0.30
Gain of loop (P = 0.0045);Gain of loop (P = 0.0045);
MVP
0.29
MPC
1.6
ClinPred
0.99
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.94
gMVP
0.71
Mutation Taster
=46/54
disease causing

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

Other links and lift over

dbSNP: rs750216083; hg19: chr1-43273140; API