Variant 14-24096936-G-C details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_004563.4(PCK2):c.74G>C(p.Arg25Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,613,398 control chromosomes in the GnomAD database, with no homozygous occurrence. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

PCK2
NM_004563.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.33

Variant links:

Genes affected

PCK2 (HGNC:8725): (phosphoenolpyruvate carboxykinase 2, mitochondrial) This gene encodes a mitochondrial enzyme that catalyzes the conversion of oxaloacetate to phosphoenolpyruvate in the presence of guanosine triphosphate (GTP). A cytosolic form of this protein is encoded by a different gene and is the key enzyme of gluconeogenesis in the liver. Alternatively spliced transcript variants have been described. [provided by RefSeq, Apr 2014]

PCK2 links:

NRL (HGNC:8002): (neural retina leucine zipper) This gene encodes a basic motif-leucine zipper transcription factor of the Maf subfamily. The encoded protein is conserved among vertebrates and is a critical intrinsic regulator of photoceptor development and function. Mutations in this gene have been associated with retinitis pigmentosa and retinal degenerative diseases. [provided by RefSeq, Jul 2008]

NRL links:

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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/exons	MANE	Protein	UniProt
PCK2	NM_004563.4 link	c.74G>C	p.Arg25Pro	missense_variant	2/10	ENST00000216780.9	NP_004554.3	Q16822-1A0A384MTT2
NRL	NM_001354768.3 link	c.-27-14061C>G		intron_variant		ENST00000561028.6	NP_001341697.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PCK2	ENST00000216780.9 link	c.74G>C	p.Arg25Pro	missense_variant	2/10	1	NM_004563.4	ENSP00000216780.4		Q16822-1
NRL	ENST00000561028.6 link	c.-27-14061C>G		intron_variant		2	NM_001354768.3	ENSP00000454062.2		P54845-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152120

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

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:

0.00000398

AC:

AN:

250996

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135670

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

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:

0.00000205

AC:

AN:

1461160

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726934

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152238

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74426

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

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

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 27, 2024

The c.74G>C (p.R25P) alteration is located in exon 2 (coding exon 2) of the PCK2 gene. This alteration results from a G to C substitution at nucleotide position 74, causing the arginine (R) at amino acid position 25 to be replaced by a proline (P). 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

0.092

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.013

T;T;.

Eigen

Benign

0.0079

Eigen_PC

Benign

0.20

FATHMM_MKL

Uncertain

0.90

M_CAP

Benign

0.0074

MetaRNN

Uncertain

0.54

D;D;D

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.34

.;N;N

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.60

N;N;N

REVEL

Benign

0.043

Sift

Uncertain

0.0050

D;D;D

Sift4G

Uncertain

0.010

D;D;D

Polyphen

0.23, 0.0010

.;B;B

Vest4

0.67

MutPred

0.48

.;Loss of helix (P = 0.0076);Loss of helix (P = 0.0076);

MVP

0.54

MPC

0.19

ClinPred

0.49

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.26

gMVP

0.74

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