11-34159934-T-C

Position:

• chr11-34159934-T-C

Variant summary

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

The NM_145804.3(ABTB2):​c.2578A>G​(p.Lys860Glu) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,682 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ABTB2 NM_145804.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.06

Genes affected

ABTB2 (HGNC:23842): (ankyrin repeat and BTB domain containing 2) Predicted to enable protein heterodimerization activity. Predicted to act upstream of or within cellular response to toxic substance. [provided by Alliance of Genome Resources, Apr 2022]

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
ABTB2	NM_145804.3	c.2578A>G	p.Lys860Glu	missense_variant	13/17	ENST00000435224.3	NP_665803.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ABTB2	ENST00000435224.3	c.2578A>G	p.Lys860Glu	missense_variant	13/17	1	NM_145804.3	ENSP00000410157.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000796 AC: 2 AN: 251394 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135892

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000578

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461682 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727142

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000447

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

EpiCase AF: 0.0000545

EpiControl AF: 0.00

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

Oct 29, 2024

The c.2578A>G (p.K860E) alteration is located in exon 13 (coding exon 13) of the ABTB2 gene. This alteration results from a A to G substitution at nucleotide position 2578, causing the lysine (K) at amino acid position 860 to be replaced by a glutamic acid (E). 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	Pathogenic	0.98
BayesDel_addAF	Benign	-0.088	T
BayesDel_noAF	Benign	-0.19
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.70	D
Eigen	Uncertain	0.61
Eigen_PC	Uncertain	0.58
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.93	D
M_CAP	Benign	0.017	T
MetaRNN	Uncertain	0.73	D
MetaSVM	Benign	-0.66	T
MutationAssessor	Uncertain	2.5	M
PrimateAI	Uncertain	0.66	T
PROVEAN	Uncertain	-3.4	D
REVEL	Benign	0.21
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0080	D
Vest4		0.76
MVP		0.53
MPC		0.42
ClinPred		0.92	D
GERP RS		5.0
Varity_R		0.76
gMVP		0.78

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: rs937611866; hg19: chr11-34181481;