rs551737995

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_032737.4(LMNB2):​c.1351G>A​(p.Val451Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000925 in 1,611,438 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000095 ( 0 hom. )

Consequence

LMNB2
NM_032737.4 missense

Scores

16

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.21
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.022878438).
BP6
Variant 19-2433957-C-T is Benign according to our data. Variant chr19-2433957-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 571690.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LMNB2NM_032737.4 linkuse as main transcriptc.1351G>A p.Val451Ile missense_variant 8/12 ENST00000325327.4 NP_116126.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LMNB2ENST00000325327.4 linkuse as main transcriptc.1351G>A p.Val451Ile missense_variant 8/121 NM_032737.4 ENSP00000327054 P1
LMNB2ENST00000490554.5 linkuse as main transcriptn.542G>A non_coding_transcript_exon_variant 3/42

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152244
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000160
AC:
39
AN:
243730
Hom.:
0
AF XY:
0.000128
AC XY:
17
AN XY:
132864
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000669
Gnomad ASJ exome
AF:
0.000304
Gnomad EAS exome
AF:
0.0000554
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000828
Gnomad OTH exome
AF:
0.000502
GnomAD4 exome
AF:
0.0000953
AC:
139
AN:
1459076
Hom.:
0
Cov.:
36
AF XY:
0.0000923
AC XY:
67
AN XY:
725888
show subpopulations
Gnomad4 AFR exome
AF:
0.000508
Gnomad4 AMR exome
AF:
0.000649
Gnomad4 ASJ exome
AF:
0.000422
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000585
Gnomad4 OTH exome
AF:
0.000199
GnomAD4 genome
AF:
0.0000656
AC:
10
AN:
152362
Hom.:
0
Cov.:
33
AF XY:
0.0000537
AC XY:
4
AN XY:
74506
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000134
Hom.:
0
Bravo
AF:
0.0000982
ExAC
AF:
0.000125
AC:
15
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000178

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 testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.078
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
11
DANN
Benign
0.59
DEOGEN2
Benign
0.25
T
Eigen
Benign
-0.85
Eigen_PC
Benign
-0.79
FATHMM_MKL
Benign
0.49
N
LIST_S2
Benign
0.45
T
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.023
T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
0.96
N;N
PrimateAI
Benign
0.40
T
REVEL
Benign
0.022
Sift4G
Benign
0.29
T
Vest4
0.11
MVP
0.18
MPC
0.20
ClinPred
0.025
T
GERP RS
2.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.038
gMVP
0.11

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: rs551737995; hg19: chr19-2433955; API