chr2-28529787-T-G

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_153021.5(PLB1):​c.468+8T>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000203 in 1,613,804 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

PLB1
NM_153021.5 splice_region, intron

Scores

2
Splicing: ADA: 0.00006294
2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.65
Variant links:
Genes affected
PLB1 (HGNC:30041): (phospholipase B1) This gene encodes a membrane-associated phospholipase that displays lysophospholipase and phospholipase A2 activities through removal of sn-1 and sn-2 fatty acids of glycerophospholipids. In addition, it displays lipase and retinyl ester hydrolase activities. The encoded protein is highly conserved and is composed of a large, glycosylated extracellular domain composed of four tandem homologous domains, followed by a hydrophobic segment that anchors the enzyme to the membrane and a short C-terminal cytoplasmic tail. This gene has been identified as a candidate rheumatoid arthritis risk gene. [provided by RefSeq, Jul 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.88).
BP6
Variant 2-28529787-T-G is Benign according to our data. Variant chr2-28529787-T-G is described in ClinVar as [Likely_benign]. Clinvar id is 745798.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PLB1NM_153021.5 linkuse as main transcriptc.468+8T>G splice_region_variant, intron_variant ENST00000327757.10
PLB1NM_001170585.2 linkuse as main transcriptc.468+8T>G splice_region_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PLB1ENST00000327757.10 linkuse as main transcriptc.468+8T>G splice_region_variant, intron_variant 1 NM_153021.5 P1Q6P1J6-1
PLB1ENST00000404858.5 linkuse as main transcriptc.464+8T>G splice_region_variant, intron_variant 1
PLB1ENST00000422425.6 linkuse as main transcriptc.468+8T>G splice_region_variant, intron_variant 1 Q6P1J6-3
PLB1ENST00000416713.5 linkuse as main transcriptc.300+8T>G splice_region_variant, intron_variant 5

Frequencies

GnomAD3 genomes
AF:
0.000243
AC:
37
AN:
152148
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000500
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000163
AC:
41
AN:
251368
Hom.:
0
AF XY:
0.000132
AC XY:
18
AN XY:
135876
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.000334
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000198
AC:
290
AN:
1461656
Hom.:
0
Cov.:
33
AF XY:
0.000227
AC XY:
165
AN XY:
727164
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.000252
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.000243
AC:
37
AN:
152148
Hom.:
0
Cov.:
32
AF XY:
0.000202
AC XY:
15
AN XY:
74326
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000500
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000290
Hom.:
0
Bravo
AF:
0.000196

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 23, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
0.20
DANN
Benign
0.42

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000063
dbscSNV1_RF
Benign
0.0
SpliceAI score (max)
0.12
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: rs370660301; hg19: chr2-28752654; API