chr14-50858108-A-T

Variant summary

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

The ENST00000532462.5(PYGL):​c.2441T>A​(p.Leu814His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00005 in 700,282 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/13 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

PYGL
ENST00000532462.5 missense

Scores

1
3
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.252
Variant links:
Genes affected
PYGL (HGNC:9725): (glycogen phosphorylase L) This gene encodes a homodimeric protein that catalyses the cleavage of alpha-1,4-glucosidic bonds to release glucose-1-phosphate from liver glycogen stores. This protein switches from inactive phosphorylase B to active phosphorylase A by phosphorylation of serine residue 15. Activity of this enzyme is further regulated by multiple allosteric effectors and hormonal controls. Humans have three glycogen phosphorylase genes that encode distinct isozymes that are primarily expressed in liver, brain and muscle, respectively. The liver isozyme serves the glycemic demands of the body in general while the brain and muscle isozymes supply just those tissues. In glycogen storage disease type VI, also known as Hers disease, mutations in liver glycogen phosphorylase inhibit the conversion of glycogen to glucose and results in moderate hypoglycemia, mild ketosis, growth retardation and hepatomegaly. Alternative splicing results in multiple transcript variants encoding different isoforms.[provided by RefSeq, Feb 2011]

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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=0.1127013).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PYGLENST00000532462.5 linkuse as main transcriptc.2441T>A p.Leu814His missense_variant 20/201 ENSP00000431657
ENST00000557152.1 linkuse as main transcriptn.29-7406A>T intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152134
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000944
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000863
AC:
11
AN:
127494
Hom.:
0
AF XY:
0.0000716
AC XY:
5
AN XY:
69848
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000125
Gnomad ASJ exome
AF:
0.000618
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000421
Gnomad OTH exome
AF:
0.000252
GnomAD4 exome
AF:
0.0000493
AC:
27
AN:
548148
Hom.:
0
Cov.:
0
AF XY:
0.0000404
AC XY:
12
AN XY:
296852
show subpopulations
Gnomad4 AFR exome
AF:
0.0000634
Gnomad4 AMR exome
AF:
0.000173
Gnomad4 ASJ exome
AF:
0.000451
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000285
Gnomad4 OTH exome
AF:
0.0000657
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152134
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74316
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00115
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000944
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000174
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.000197
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenSep 01, 2022PYGL: PM2:Supporting, PP3 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
12
DANN
Benign
0.94
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.73
FATHMM_MKL
Benign
0.014
N
LIST_S2
Benign
0.32
T
M_CAP
Uncertain
0.21
D
MetaRNN
Benign
0.11
T
MetaSVM
Uncertain
-0.045
T
MutationTaster
Benign
1.0
N
PROVEAN
Benign
-0.88
N
REVEL
Benign
0.21
Sift
Uncertain
0.0050
D
Sift4G
Pathogenic
0.0
D
Vest4
0.43
MutPred
0.52
Gain of loop (P = 0.0097);
MVP
0.72
ClinPred
0.15
T
GERP RS
-1.2

Splicing

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: rs770977861; hg19: chr14-51324826; API