1-155295709-C-T

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong

The NM_000298.6(PKLR):​c.331G>A​(p.Gly111Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,614,046 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

PKLR
NM_000298.6 missense

Scores

16
2
1

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 7.77
Variant links:
Genes affected
PKLR (HGNC:9020): (pyruvate kinase L/R) The protein encoded by this gene is a pyruvate kinase that catalyzes the transphosphorylation of phohsphoenolpyruvate into pyruvate and ATP, which is the rate-limiting step of glycolysis. Defects in this enzyme, due to gene mutations or genetic variations, are the common cause of chronic hereditary nonspherocytic hemolytic anemia (CNSHA or HNSHA). Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.991
PP5
Variant 1-155295709-C-T is Pathogenic according to our data. Variant chr1-155295709-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 522658.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-155295709-C-T is described in UniProt as null. Variant chr1-155295709-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PKLRNM_000298.6 linkuse as main transcriptc.331G>A p.Gly111Arg missense_variant 3/11 ENST00000342741.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PKLRENST00000342741.6 linkuse as main transcriptc.331G>A p.Gly111Arg missense_variant 3/111 NM_000298.6 P3P30613-1
PKLRENST00000392414.7 linkuse as main transcriptc.238G>A p.Gly80Arg missense_variant 3/111 A1P30613-2
PKLRENST00000434082.3 linkuse as main transcriptc.139G>A p.Gly47Arg missense_variant 3/55

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152200
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251428
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461846
Hom.:
0
Cov.:
35
AF XY:
0.00000275
AC XY:
2
AN XY:
727226
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.0000482
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000565
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingInvitaeJan 02, 2024This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 111 of the PKLR protein (p.Gly111Arg). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This missense change has been observed in individual(s) with pyruvate kinase deficiency (PMID: 19085939, 36892591). ClinVar contains an entry for this variant (Variation ID: 522658). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt PKLR protein function with a positive predictive value of 80%. For these reasons, this variant has been classified as Pathogenic. -
Likely pathogenic, criteria provided, single submitterclinical testingRevvity Omics, RevvityMar 09, 2023- -
Pyruvate kinase deficiency of red cells Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingGenomic Research Center, Shahid Beheshti University of Medical SciencesDec 03, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.58
D
BayesDel_noAF
Pathogenic
0.59
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
1.0
D;.;.
Eigen
Pathogenic
0.97
Eigen_PC
Pathogenic
0.84
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Pathogenic
0.99
.;.;D
M_CAP
Pathogenic
0.55
D
MetaRNN
Pathogenic
0.99
D;D;D
MetaSVM
Pathogenic
0.90
D
MutationAssessor
Pathogenic
3.9
H;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.89
D
PROVEAN
Pathogenic
-7.4
D;D;.
REVEL
Pathogenic
0.96
Sift
Pathogenic
0.0
D;D;.
Sift4G
Uncertain
0.023
D;D;.
Polyphen
1.0
D;.;.
Vest4
0.99
MutPred
0.96
Gain of methylation at G111 (P = 0.0435);.;.;
MVP
0.99
MPC
1.4
ClinPred
1.0
D
GERP RS
4.3
Varity_R
0.98
gMVP
0.95

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.

Other links and lift over

dbSNP: rs918627824; hg19: chr1-155265500; API