18-63318540-C-G

Position:

• chr18-63318540-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The ENST00000333681.5(BCL2):​c.127G>C​(p.Ala43Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A43T) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BCL2 ENST00000333681.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0250

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 Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12709323).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BCL2	NM_000633.3	c.127G>C	p.Ala43Pro	missense_variant	2/3	ENST00000333681.5	NP_000624.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BCL2	ENST00000333681.5	c.127G>C	p.Ala43Pro	missense_variant	2/3	1	NM_000633.3	ENSP00000329623	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.066
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.53
CADD	Benign	9.4
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.52	D;D;.
Eigen	Benign	-0.44
Eigen_PC	Benign	-0.61
FATHMM_MKL	Benign	0.037	N
LIST_S2	Benign	0.67	.;T;T
M_CAP	Benign	0.019	T
MetaRNN	Benign	0.13	T;T;T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.63	N;N;N
MutationTaster	Benign	1.0	N;N;N;N
PrimateAI	Uncertain	0.59	T
PROVEAN	Benign	-0.52	N;N;.
REVEL	Benign	0.057
Sift	Benign	0.24	T;T;.
Sift4G	Benign	0.14	T;T;T
Polyphen		1.0	D;D;.
Vest4		0.095
MutPred		0.27		Gain of glycosylation at A43 (P = 0.0067);Gain of glycosylation at A43 (P = 0.0067);Gain of glycosylation at A43 (P = 0.0067);
MVP		0.56
MPC		1.1
ClinPred		0.42	T
GERP RS		1.6
Varity_R		0.073
gMVP		0.52

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr18-60985773;