Genetic Variant NM_020890.3:c.1871A>G (chr3-108559985-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_020890.3(CIP2A):c.1871A>G(p.Asp624Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000499 in 1,602,658 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

CIP2A
NM_020890.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.37

Variant links:

Genes affected

CIP2A (HGNC:29302): (cellular inhibitor of PP2A) Enables protein homodimerization activity. Predicted to act upstream of or within positive regulation of neural precursor cell proliferation and spermatogenesis. Located in cytosol and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

CIP2A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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 rank	MANE	Protein	UniProt
CIP2A	NM_020890.3 link	c.1871A>G	p.Asp624Gly	missense_variant	Exon 15 of 21	ENST00000295746.13	NP_065941.2	Q8TCG1-1
CIP2A	XM_006713716.4 link	c.1868A>G	p.Asp623Gly	missense_variant	Exon 15 of 21		XP_006713779.1
CIP2A	XM_011513057.3 link	c.929A>G	p.Asp310Gly	missense_variant	Exon 8 of 14		XP_011511359.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CIP2A	ENST00000295746.13 link	c.1871A>G	p.Asp624Gly	missense_variant	Exon 15 of 21	1	NM_020890.3	ENSP00000295746.7	Q8TCG1-1
CIP2A	ENST00000491772.5 link	c.1394A>G	p.Asp465Gly	missense_variant	Exon 15 of 21	1		ENSP00000419487.1	Q8TCG1-2
CIP2A	ENST00000481530.5 link	n.*1441A>G		non_coding_transcript_exon_variant	Exon 15 of 21	1		ENSP00000417297.1	F8WAX6
CIP2A	ENST00000481530.5 link	n.*1441A>G		3_prime_UTR_variant	Exon 15 of 21	1		ENSP00000417297.1	F8WAX6

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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

GnomAD3 exomes

AF:

0.00000801

AC:

AN:

249650

Hom.:

AF XY:

0.00000741

AC XY:

AN XY:

134940

show subpopulations

Gnomad AFR exome

AF:

0.000124

Gnomad AMR exome

AF:

0.00

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:

0.00000276

AC:

AN:

1450496

Hom.:

Cov.:

AF XY:

0.00000277

AC XY:

AN XY:

722130

show subpopulations

Gnomad4 AFR exome

AF:

0.0000903

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152162

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74332

show subpopulations

Gnomad4 AFR

AF:

0.0000965

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:

0.0000264

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 01, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1871A>G (p.D624G) alteration is located in exon 15 (coding exon 15) of the KIAA1524 gene. This alteration results from a A to G substitution at nucleotide position 1871, causing the aspartic acid (D) at amino acid position 624 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

Benign

0.28

BayesDel_addAF

Uncertain

0.077

BayesDel_noAF

Uncertain

0.11

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.042

T;.;T

Eigen

Pathogenic

0.68

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.91

D;D;D

M_CAP

Benign

0.033

MetaRNN

Uncertain

0.73

D;D;D

MetaSVM

Benign

-0.72

MutationAssessor

Uncertain

2.0

M;.;.

PrimateAI

Uncertain

0.68

PROVEAN

Uncertain

-2.7

D;N;.

REVEL

Uncertain

0.39

Sift

Uncertain

0.020

D;D;.

Sift4G

Uncertain

0.034

D;D;D

Polyphen

1.0

D;.;.

Vest4

0.86

MutPred

0.53

Gain of glycosylation at S620 (P = 0.0424);.;.;

MVP

0.69

MPC

0.67

ClinPred

0.91

GERP RS

4.7

Varity_R

0.31

gMVP

0.59

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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