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19-2430909-G-T

Variant summary

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

The NM_032737.4(LMNB2):​c.*2C>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000908 in 1,586,762 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 0.000085 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000091 ( 0 hom. )

Consequence

LMNB2
NM_032737.4 3_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0860
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 -6 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.67).
BP6
Variant 19-2430909-G-T is Benign according to our data. Variant chr19-2430909-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 3050568.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.*2C>A 3_prime_UTR_variant 12/12 ENST00000325327.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LMNB2ENST00000325327.4 linkuse as main transcriptc.*2C>A 3_prime_UTR_variant 12/121 NM_032737.4 P1
LMNB2ENST00000475819.1 linkuse as main transcriptn.48-601C>A intron_variant, non_coding_transcript_variant 5
LMNB2ENST00000532465.1 linkuse as main transcriptn.413+639C>A intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152192
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000176
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000797
AC:
20
AN:
250980
Hom.:
0
AF XY:
0.0000957
AC XY:
13
AN XY:
135786
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000913
AC:
131
AN:
1434570
Hom.:
0
Cov.:
27
AF XY:
0.0000755
AC XY:
54
AN XY:
715488
show subpopulations
Gnomad4 AFR exome
AF:
0.0000304
Gnomad4 AMR exome
AF:
0.00
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:
0.000114
Gnomad4 OTH exome
AF:
0.000101
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152192
Hom.:
0
Cov.:
33
AF XY:
0.0000807
AC XY:
6
AN XY:
74350
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000135
Hom.:
0
Bravo
AF:
0.0000756
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

LMNB2-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJul 10, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.67
CADD
Benign
6.8
DANN
Benign
0.89

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: rs142439833; hg19: chr19-2430907; API