rs4987835

Positions:

• chr18-63138982-T-C
• chr18-63138982-T-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000633.3(BCL2):​c.586-10223A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.141 in 152,262 control chromosomes in the GnomAD database, including 2,014 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.14 (2014 hom., cov: 33)
• Consequence: BCL2 NM_000633.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.235

Genes affected

BCL2 (HGNC:990): (BCL2 apoptosis regulator) This gene encodes an integral outer mitochondrial membrane protein that blocks the apoptotic death of some cells such as lymphocytes. Constitutive expression of BCL2, such as in the case of translocation of BCL2 to Ig heavy chain locus, is thought to be the cause of follicular lymphoma. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.416 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BCL2	NM_000633.3	c.586-10223A>G		intron_variant		ENST00000333681.5	NP_000624.2
BCL2	XM_047437733.1	c.586-10223A>G		intron_variant			XP_047293689.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BCL2	ENST00000333681.5	c.586-10223A>G		intron_variant		1	NM_000633.3	ENSP00000329623	P1

Frequencies

GnomAD3 genomes AF: 0.140 AC: 21375 AN: 152144 Hom.: 2009 Cov.: 33

Gnomad AFR AF: 0.0912

Gnomad AMI AF: 0.149

Gnomad AMR AF: 0.184

Gnomad ASJ AF: 0.128

Gnomad EAS AF: 0.430

Gnomad SAS AF: 0.336

Gnomad FIN AF: 0.176

Gnomad MID AF: 0.117

Gnomad NFE AF: 0.120

Gnomad OTH AF: 0.126

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.141 AC: 21395 AN: 152262 Hom.: 2014 Cov.: 33 AF XY: 0.149 AC XY: 11078 AN XY: 74456

Gnomad4 AFR AF: 0.0912

Gnomad4 AMR AF: 0.184

Gnomad4 ASJ AF: 0.128

Gnomad4 EAS AF: 0.431

Gnomad4 SAS AF: 0.335

Gnomad4 FIN AF: 0.176

Gnomad4 NFE AF: 0.120

Gnomad4 OTH AF: 0.123

Alfa AF: 0.129 Hom.: 164

Bravo AF: 0.137

Asia WGS AF: 0.281 AC: 975 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	3.7
DANN	Benign	0.49

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

Other links and lift over

dbSNP: rs4987835; hg19: chr18-60806215;