2-70979206-A-G

Position:

• chr2-70979206-A-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The NM_001115116.2(ANKRD53):​c.280A>G​(p.Lys94Glu) 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. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K94N) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: ANKRD53 NM_001115116.2 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.23

Genes affected

ANKRD53 (HGNC:25691): (ankyrin repeat domain 53) Involved in mitotic metaphase plate congression; regulation of microtubule cytoskeleton organization; and regulation of mitotic cytokinesis. Located in spindle pole. [provided by Alliance of Genome Resources, Apr 2022]

LOC105374795 (HGNC:):

TEX261 (HGNC:30712): (testis expressed 261) Predicted to enable COPII receptor activity. Predicted to be involved in endoplasmic reticulum to Golgi vesicle-mediated transport. Predicted to act upstream of or within positive regulation of apoptotic process. Predicted to be located in cytoplasm. Predicted to be integral component of membrane. Predicted to be active in COPII-coated ER to Golgi transport vesicle. Predicted to be integral component of Golgi membrane and integral component of endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.040287524).
• BP6: Variant 2-70979206-A-G is Benign according to our data. Variant chr2-70979206-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 3126892.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ANKRD53	NM_001115116.2	c.280A>G	p.Lys94Glu	missense_variant	2/6	ENST00000360589.4
LOC105374795	XR_001739534.2	n.440-2898T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ANKRD53	ENST00000360589.4	c.280A>G	p.Lys94Glu	missense_variant	2/6	2	NM_001115116.2	A2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

Alfa AF: 0.0000936 Hom.: 0

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 01, 2024

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.059
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.56
CADD	Benign	4.7
DANN	Benign	0.47
Eigen	Benign	-1.4
Eigen_PC	Benign	-1.4
FATHMM_MKL	Benign	0.0011	N
LIST_S2	Benign	0.20	T;T;T;T
M_CAP	Benign	0.0085	T
MetaRNN	Benign	0.040	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.69	N;.;.;N
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.34	T
PROVEAN	Benign	-0.14	N;N;N;N
REVEL	Benign	0.095
Sift	Benign	1.0	T;T;T;T
Sift4G	Benign	1.0	T;T;T;T
Polyphen		0.0	B;B;.;B
Vest4		0.13
MutPred		0.34		Loss of ubiquitination at K94 (P = 0.0022);.;.;Loss of ubiquitination at K94 (P = 0.0022);
MVP		0.38
MPC		0.51
ClinPred		0.052	T
GERP RS		1.9
Varity_R		0.064
gMVP		0.12

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: rs1669922591; hg19: chr2-71206336;