chr19-2431786-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP6_Moderate

The NM_032737.4(LMNB2):c.1707C>T(p.Gly569Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000215 in 1,613,648 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

LMNB2
NM_032737.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.237

Publications

3 publications found

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 Gene-Disease associations (from GenCC):

microcephaly 27, primary, autosomal dominant
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
progressive myoclonic epilepsy type 9
Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
microcephaly
Inheritance: AD Classification: MODERATE Submitted by: Franklin by Genoox
lipodystrophy, partial, acquired, susceptibility to
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
central nervous system malformation
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

LMNB2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP6

Variant 19-2431786-G-A is Benign according to our data. Variant chr19-2431786-G-A is described in CliVar as Likely_benign. Clinvar id is 475779.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-2431786-G-A is described in CliVar as Likely_benign. Clinvar id is 475779.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-2431786-G-A is described in CliVar as Likely_benign. Clinvar id is 475779.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-2431786-G-A is described in CliVar as Likely_benign. Clinvar id is 475779.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-2431786-G-A is described in CliVar as Likely_benign. Clinvar id is 475779.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-2431786-G-A is described in CliVar as Likely_benign. Clinvar id is 475779.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-2431786-G-A is described in CliVar as Likely_benign. Clinvar id is 475779.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-2431786-G-A is described in CliVar as Likely_benign. Clinvar id is 475779.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-2431786-G-A is described in CliVar as Likely_benign. Clinvar id is 475779.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-2431786-G-A is described in CliVar as Likely_benign. Clinvar id is 475779.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LMNB2	NM_032737.4 link	c.1707C>T	p.Gly569Gly	synonymous_variant	Exon 10 of 12	ENST00000325327.4	NP_116126.3	Q03252

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LMNB2	ENST00000325327.4 link	c.1707C>T	p.Gly569Gly	synonymous_variant	Exon 10 of 12	1	NM_032737.4	ENSP00000327054.3	Q03252
LMNB2	ENST00000475819.1 link	n.44C>T		non_coding_transcript_exon_variant	Exon 1 of 2	5
LMNB2	ENST00000532465.1 link	n.299C>T		non_coding_transcript_exon_variant	Exon 3 of 5	3

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152092

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000189

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000679

AC:

AN:

250320

AF XY:

0.0000664

show subpopulations

Gnomad AFR exome

AF:

0.000124

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000925

Gnomad NFE exome

AF:

0.000106

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000227

AC:

332

AN:

1461556

Hom.:

Cov.:

AF XY:

0.000210

AC XY:

153

AN XY:

727106

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39692

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.0000188

AC:

AN:

53248

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000290

AC:

323

AN:

1111898

Other (OTH)

AF:

0.0000828

AC:

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

124

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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

AF:

0.0000986

AC:

AN:

152092

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74274

show subpopulations

African (AFR)

AF:

0.000121

AC:

AN:

41424

American (AMR)

AF:

0.00

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.000189

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68008

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.542

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000132

Hom.:

Bravo

AF:

0.000151

EpiCase

AF:

0.000109

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

Jun 03, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.63

CADD

Benign

(source)

DANN

Benign

0.81

PhyloP100

-0.24

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.36

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.36

Position offset: 2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over