Variant 19-2430969-A-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_032737.4(LMNB2):c.1822-17T>C variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000309 in 1,605,032 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 Benign (★).

Frequency

Genomes: 𝑓 0.0017 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00017 ( 1 hom. )

Consequence

LMNB2
NM_032737.4 splice_polypyrimidine_tract, intron

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0210

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]

LMNB2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.73).

BP6

Variant 19-2430969-A-G is Benign according to our data. Variant chr19-2430969-A-G is described in ClinVar as [Benign]. Clinvar id is 1599607.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LMNB2	NM_032737.4 linkuse as main transcript	c.1822-17T>C		splice_polypyrimidine_tract_variant, intron_variant		ENST00000325327.4

Ensembl

Gene	Transcript	HGVSc	Effect	TSL	MANE	Appris
LMNB2	ENST00000325327.4 linkuse as main transcript	c.1822-17T>C	splice_polypyrimidine_tract_variant, intron_variant	1	NM_032737.4	P1
LMNB2	ENST00000475819.1 linkuse as main transcript	n.48-661T>C	intron_variant, non_coding_transcript_variant	5
LMNB2	ENST00000532465.1 linkuse as main transcript	n.413+579T>C	intron_variant, non_coding_transcript_variant	3

Frequencies

GnomAD3 genomes

AF:

0.00169

AC:

257

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00594

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

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:

0.00

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000474

AC:

118

AN:

248708

Hom.:

AF XY:

0.000334

AC XY:

AN XY:

134894

show subpopulations

Gnomad AFR exome

AF:

0.00707

Gnomad AMR exome

AF:

0.0000869

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000165

AC:

240

AN:

1452744

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

723306

show subpopulations

Gnomad4 AFR exome

AF:

0.00653

Gnomad4 AMR exome

AF:

0.0000895

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000724

Gnomad4 OTH exome

AF:

0.000167

GnomAD4 genome

AF:

0.00168

AC:

256

AN:

152288

Hom.:

Cov.:

AF XY:

0.00158

AC XY:

118

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.00589

Gnomad4 AMR

AF:

0.000588

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.00138

Hom.:

Bravo

AF:

0.00209

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: 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

Benign, criteria provided, single submitter

clinical testing

Invitae

Dec 19, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.73

Cadd

Benign

3.3

Dann

Benign

0.84

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over