chr11-62690377-G-A

Variant summary

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

The NM_001122955.4(BSCL2):​c.1379C>T​(p.Ser460Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Consequence

BSCL2
NM_001122955.4 missense

Scores

4
12
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.89
Variant links:
Genes affected
BSCL2 (HGNC:15832): (BSCL2 lipid droplet biogenesis associated, seipin) This gene encodes the multi-pass transmembrane protein protein seipin. This protein localizes to the endoplasmic reticulum and may be important for lipid droplet morphology. Mutations in this gene have been associated with congenital generalized lipodystrophy type 2 or Berardinelli-Seip syndrome, a rare autosomal recessive disease characterized by a near absence of adipose tissue and severe insulin resistance. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. Naturally occurring read-through transcription occurs between this locus and the neighboring locus HNRNPUL2 (heterogeneous nuclear ribonucleoprotein U-like 2).[provided by RefSeq, Mar 2011]
HNRNPUL2-BSCL2 (HGNC:49189): (HNRNPUL2-BSCL2 readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription between the neighboring HNRNPUL2 (heterogeneous nuclear ribonucleoprotein U-like 2) and BSCL2 (Berardinelli-Seip congenital lipodystrophy 2 (seipin)) genes on chromosome 11. The read-through transcript is a candidate for nonsense-mediated mRNA decay (NMD), and is unlikely to produce a protein product. [provided by RefSeq, Mar 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BSCL2NM_001122955.4 linkc.1379C>T p.Ser460Phe missense_variant Exon 11 of 11 ENST00000360796.10 NP_001116427.1 Q96G97-4A0A024R540

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BSCL2ENST00000360796.10 linkc.1379C>T p.Ser460Phe missense_variant Exon 11 of 11 1 NM_001122955.4 ENSP00000354032.5 Q96G97-4
HNRNPUL2-BSCL2ENST00000403734.2 linkn.*1430C>T non_coding_transcript_exon_variant Exon 24 of 24 2 ENSP00000456010.1 H3BQZ7
HNRNPUL2-BSCL2ENST00000403734.2 linkn.*1430C>T 3_prime_UTR_variant Exon 24 of 24 2 ENSP00000456010.1 H3BQZ7

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
32
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Jan 24, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.050
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.043
.;.;.;T;T;T;T
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.89
D;D;D;T;.;.;D
M_CAP
Uncertain
0.23
D
MetaRNN
Uncertain
0.49
T;T;T;T;T;T;T
MetaSVM
Uncertain
0.78
D
MutationAssessor
Uncertain
2.1
.;.;.;.;M;M;M
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-6.0
D;N;N;N;N;N;N
REVEL
Uncertain
0.53
Sift
Pathogenic
0.0
D;D;D;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;.;D;D;D
Polyphen
1.0
.;.;.;.;D;D;D
Vest4
0.47, 0.45, 0.45, 0.45, 0.45
MutPred
0.22
.;.;.;.;Loss of phosphorylation at S396 (P = 0.0398);Loss of phosphorylation at S396 (P = 0.0398);Loss of phosphorylation at S396 (P = 0.0398);
MVP
0.96
ClinPred
0.99
D
GERP RS
5.7
Varity_R
0.24
gMVP
0.37

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs3186041; hg19: chr11-62457849; API