2-241559689-T-G

Position:

• chr2-241559689-T-G

Variant summary

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

The NM_032515.5(BOK):​c.206T>G​(p.Val69Gly) 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. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: BOK NM_032515.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.55

Genes affected

BOK (HGNC:1087): (BCL2 family apoptosis regulator BOK) The protein encoded by this gene belongs to the BCL2 family, members of which form homo- or heterodimers, and act as anti- or proapoptotic regulators that are involved in a wide variety of cellular processes. Studies in rat show that this protein has restricted expression in reproductive tissues, interacts strongly with some antiapoptotic BCL2 proteins, not at all with proapoptotic BCL2 proteins, and induces apoptosis in transfected cells. Thus, this protein represents a proapoptotic member of the BCL2 family. [provided by RefSeq, Sep 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BOK	NM_032515.5	c.206T>G	p.Val69Gly	missense_variant	2/5	ENST00000318407.5	NP_115904.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BOK	ENST00000318407.5	c.206T>G	p.Val69Gly	missense_variant	2/5	1	NM_032515.5	ENSP00000314132	P1
BOK	ENST00000641230.1	n.55-2659T>G		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 16, 2021

The c.206T>G (p.V69G) alteration is located in exon 2 (coding exon 1) of the BOK gene. This alteration results from a T to G substitution at nucleotide position 206, causing the valine (V) at amino acid position 69 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.44
BayesDel_addAF	Benign	-0.078	T
BayesDel_noAF	Benign	-0.35
CADD	Uncertain	25
DANN	Benign	0.90
DEOGEN2	Uncertain	0.46	T
Eigen	Benign	-0.25
Eigen_PC	Benign	-0.16
FATHMM_MKL	Benign	0.73	D
LIST_S2	Benign	0.74	T
M_CAP	Pathogenic	0.33	D
MetaRNN	Benign	0.36	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.4	L
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.82	D
PROVEAN	Uncertain	-2.7	D
REVEL	Benign	0.17
Sift	Benign	0.31	T
Sift4G	Uncertain	0.0090	D
Polyphen		0.34	B
Vest4		0.41
MutPred		0.51		Loss of stability (P = 0.0029);
MVP		0.53
MPC		2.2
ClinPred		0.70	D
GERP RS		3.6
Varity_R		0.39
gMVP		0.59

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.21		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.21		Position offset: -11

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: chr2-242499104;