2-32357184-C-T

Position:

• chr2-32357184-C-T

Variant summary

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

The NM_016252.4(BIRC6):​c.23C>T​(p.Ala8Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000724 in 1,381,844 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 Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: BIRC6 NM_016252.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.44

Genes affected

BIRC6 (HGNC:13516): (baculoviral IAP repeat containing 6) This gene encodes a protein with a BIR (baculoviral inhibition of apoptosis protein repeat) domain and a UBCc (ubiquitin-conjugating enzyme E2, catalytic) domain. This protein inhibits apoptosis by facilitating the degradation of apoptotic proteins by ubiquitination. [provided by RefSeq, Jul 2008]

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=0.21334177).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BIRC6	NM_016252.4	c.23C>T	p.Ala8Val	missense_variant	1/74	ENST00000421745.7	NP_057336.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BIRC6	ENST00000421745.7	c.23C>T	p.Ala8Val	missense_variant	1/74	1	NM_016252.4	ENSP00000393596	P2
BIRC6	ENST00000700518.1	c.23C>T	p.Ala8Val	missense_variant	1/73			ENSP00000515025	A2
BIRC6	ENST00000700519.1	c.23C>T	p.Ala8Val	missense_variant	1/74			ENSP00000515026

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.24e-7 AC: 1 AN: 1381844 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 684394

Gnomad4 AFR exome AF: 0.00

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: 9.25e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

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

Jun 30, 2023

The c.23C>T (p.A8V) alteration is located in exon 1 (coding exon 1) of the BIRC6 gene. This alteration results from a C to T substitution at nucleotide position 23, causing the alanine (A) at amino acid position 8 to be replaced by a valine (V). 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	Benign	0.26
BayesDel_addAF	Uncertain	0.035	T
BayesDel_noAF	Benign	-0.19
CADD	Uncertain	23
DANN	Uncertain	1.0
Eigen	Benign	-0.22
Eigen_PC	Benign	-0.046
FATHMM_MKL	Benign	0.64	D
M_CAP	Pathogenic	0.41	D
MetaRNN	Benign	0.21	T
MetaSVM	Benign	-0.79	T
MutationTaster	Benign	0.97	N
PrimateAI	Pathogenic	0.91	D
PROVEAN	Benign	-0.18	N
REVEL	Benign	0.21
Sift	Uncertain	0.013	D
Vest4		0.22
MutPred		0.14		Gain of catalytic residue at A8 (P = 0.0879);
MVP		0.44
MPC		1.3
ClinPred		0.53	D
GERP RS		3.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
gMVP		0.27

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: rs1178820415; hg19: chr2-32582252;