Variant 11-68120954-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001277.3(CHKA):c.224C>T(p.Pro75Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000516 in 1,163,464 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000039 ( 0 hom. )

Consequence

CHKA
NM_001277.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.28

Variant links:

Genes affected

CHKA (HGNC:1937): (choline kinase alpha) The major pathway for the biosynthesis of phosphatidylcholine occurs via the CDP-choline pathway. The protein encoded by this gene is the initial enzyme in the sequence and may play a regulatory role. The encoded protein also catalyzes the phosphorylation of ethanolamine. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

CHKA links:

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ACMG classification

Classification made for transcript

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=0.142059).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CHKA	NM_001277.3 linkuse as main transcript	c.224C>T	p.Pro75Leu	missense_variant	1/12	ENST00000265689.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CHKA	ENST00000265689.9 linkuse as main transcript	c.224C>T	p.Pro75Leu	missense_variant	1/12	1	NM_001277.3		P35790-1
CHKA	ENST00000356135.9 linkuse as main transcript	c.224C>T	p.Pro75Leu	missense_variant	1/11	1		P1	P35790-2

Frequencies

GnomAD3 genomes

AF:

0.0000134

AC:

AN:

149396

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000133

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:

0.00000394

AC:

AN:

1013960

Hom.:

Cov.:

AF XY:

0.00000207

AC XY:

AN XY:

482916

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000279

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:

0.00000115

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000134

AC:

AN:

149504

Hom.:

Cov.:

AF XY:

0.0000137

AC XY:

AN XY:

72974

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000133

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

ExAC

AF:

0.0000103

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 08, 2023

The c.224C>T (p.P75L) alteration is located in exon 1 (coding exon 1) of the CHKA gene. This alteration results from a C to T substitution at nucleotide position 224, causing the proline (P) at amino acid position 75 to be replaced by a leucine (L). 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

0.088

BayesDel_addAF

Benign

-0.058

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.091

T;.

Eigen

Benign

-0.72

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.39

LIST_S2

Benign

0.60

T;T

M_CAP

Pathogenic

0.59

MetaRNN

Benign

0.14

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.34

N;N

MutationTaster

Benign

0.98

N;N

PrimateAI

Pathogenic

0.82

PROVEAN

Benign

0.070

N;N

REVEL

Benign

0.058

Sift

Benign

0.15

T;T

Sift4G

Benign

0.17

T;T

Polyphen

0.14

B;B

Vest4

0.17

MutPred

0.28

Loss of glycosylation at P75 (P = 0.0126);Loss of glycosylation at P75 (P = 0.0126);

MVP

0.44

MPC

0.53

ClinPred

0.13

GERP RS

0.60

Varity_R

0.039

gMVP

0.36

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

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