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rs563283912

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4BP6_Moderate

The NM_032737.4(LMNB2):c.1231C>T(p.Arg411Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000458 in 1,593,364 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R411H) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000047 ( 2 hom. )

Consequence

LMNB2
NM_032737.4 missense

Scores

1
6
9

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.91
Variant links:
Genes affected
LMNB2 (HGNC:6638): (lamin B2) This gene encodes a B type nuclear lamin. The nuclear lamina consists of a two-dimensional matrix of proteins located next to the inner nuclear membrane. The lamin family of proteins make up the matrix and are highly conserved in evolution. During mitosis, the lamina matrix is reversibly disassembled as the lamin proteins are phosphorylated. Lamin proteins are thought to be involved in nuclear stability, chromatin structure and gene expression. Vertebrate lamins consist of two types, A and B. Mutations in this gene are associated with acquired partial lipodystrophy. [provided by RefSeq, May 2012]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.30902815).
BP6
Variant 19-2434077-G-A is Benign according to our data. Variant chr19-2434077-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 578354.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LMNB2NM_032737.4 linkuse as main transcriptc.1231C>T p.Arg411Cys missense_variant 8/12 ENST00000325327.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LMNB2ENST00000325327.4 linkuse as main transcriptc.1231C>T p.Arg411Cys missense_variant 8/121 NM_032737.4 P1
LMNB2ENST00000490554.5 linkuse as main transcriptn.422C>T non_coding_transcript_exon_variant 3/42

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152254
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00103
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000109
AC:
23
AN:
210190
Hom.:
0
AF XY:
0.000139
AC XY:
16
AN XY:
115506
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000784
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000108
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000472
AC:
68
AN:
1440992
Hom.:
2
Cov.:
36
AF XY:
0.0000713
AC XY:
51
AN XY:
715548
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:
0.000687
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000544
Gnomad4 OTH exome
AF:
0.0000671
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152372
Hom.:
0
Cov.:
33
AF XY:
0.0000537
AC XY:
4
AN XY:
74512
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00103
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.000108
AC:
13
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Lipodystrophy, partial, acquired, susceptibility to;C4225289:Progressive myoclonic epilepsy type 9 Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJun 27, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.045
T
BayesDel_noAF
Uncertain
0.080
Cadd
Uncertain
23
Dann
Uncertain
1.0
DEOGEN2
Pathogenic
0.84
D
Eigen
Benign
0.11
Eigen_PC
Benign
-0.022
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.86
D
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.31
T
MetaSVM
Benign
-0.70
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.59
T
REVEL
Benign
0.26
Sift4G
Benign
0.077
T
Vest4
0.77
MVP
0.75
MPC
1.1
ClinPred
0.67
D
GERP RS
3.1
Varity_R
0.57
gMVP
0.36

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: rs563283912; hg19: chr19-2434075; API