Genetic Variant ANKIB1:p.Ala257Gly (chr7-92327883-C-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_019004.2(ANKIB1):c.770C>G(p.Ala257Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000505 in 1,584,406 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ANKIB1
NM_019004.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.47

Variant links:

Genes affected

ANKIB1 (HGNC:22215): (ankyrin repeat and IBR domain containing 1) Predicted to enable ubiquitin conjugating enzyme binding activity and ubiquitin protein ligase activity. Predicted to be involved in positive regulation of proteasomal ubiquitin-dependent protein catabolic process; protein polyubiquitination; and ubiquitin-dependent protein catabolic process. Predicted to be part of ubiquitin ligase complex. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ANKIB1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ANKIB1	NM_019004.2 link	c.770C>G	p.Ala257Gly	missense_variant	Exon 5 of 20	ENST00000265742.8	NP_061877.1	Q9P2G1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ANKIB1	ENST00000265742.8 link	c.770C>G	p.Ala257Gly	missense_variant	Exon 5 of 20	1	NM_019004.2	ENSP00000265742.3	Q9P2G1
ANKIB1	ENST00000439883.1 link	n.*176C>G		non_coding_transcript_exon_variant	Exon 4 of 5	3		ENSP00000407913.1	H7C2V2
ANKIB1	ENST00000439883.1 link	n.*176C>G		3_prime_UTR_variant	Exon 4 of 5	3		ENSP00000407913.1	H7C2V2

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000140

AC:

AN:

1432274

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

711436

show subpopulations

Gnomad4 AFR exome

AF:

0.0000317

Gnomad4 AMR exome

AF:

0.0000266

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

AF:

0.0000394

AC:

AN:

152132

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74308

show subpopulations

Gnomad4 AFR

AF:

0.000145

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000340

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 06, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.770C>G (p.A257G) alteration is located in exon 5 (coding exon 4) of the ANKIB1 gene. This alteration results from a C to G substitution at nucleotide position 770, causing the alanine (A) at amino acid position 257 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

Pathogenic

0.72

BayesDel_addAF

Uncertain

0.041

BayesDel_noAF

Benign

-0.18

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.25

Eigen

Pathogenic

0.80

Eigen_PC

Pathogenic

0.81

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.97

M_CAP

Benign

0.029

MetaRNN

Uncertain

0.53

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

PrimateAI

Pathogenic

0.88

PROVEAN

Uncertain

-3.2

REVEL

Uncertain

0.31

Sift

Benign

0.037

Sift4G

Uncertain

0.018

Polyphen

1.0

Vest4

0.50

MVP

0.72

MPC

1.6

ClinPred

0.98

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.43

gMVP

0.66

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over