1-155290223-GCCT-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_000298.6(PKLR):c.*346_*348del variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0013 in 334,680 control chromosomes in the GnomAD database, including 8 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.00049 (2 hom., cov: 31)
  • Exomes 𝑓: 0.0020 (6 hom.)
• Consequence: PKLR NM_000298.6 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.371

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]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BS2: High Homozygotes in GnomAd at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PKLR	NM_000298.6	c.*346_*348del		3_prime_UTR_variant	11/11	ENST00000342741.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PKLR	ENST00000342741.6	c.*346_*348del		3_prime_UTR_variant	11/11	1	NM_000298.6	P3
PKLR	ENST00000392414.7	c.*346_*348del		3_prime_UTR_variant	11/11	1		A1

Frequencies

GnomAD3 genomes AF: 0.000486 AC: 74 AN: 152210 Hom.: 2 Cov.: 31

Gnomad AFR AF: 0.0000724

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.0143

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.000478

GnomAD4 exome AF: 0.00199 AC: 362 AN: 182352 Hom.: 6 AF XY: 0.00274 AC XY: 263 AN XY: 95914

Gnomad4 AFR exome AF: 0.000167

Gnomad4 AMR exome AF: 0.000113

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0135

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000280

Gnomad4 OTH exome AF: 0.000885

GnomAD4 genome AF: 0.000486 AC: 74 AN: 152328 Hom.: 2 Cov.: 31 AF XY: 0.000671 AC XY: 50 AN XY: 74484

Gnomad4 AFR AF: 0.0000722

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.0143

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.000473

Alfa AF: 0.000142 Hom.: 0

Bravo AF: 0.000144

Asia WGS AF: 0.00491 AC: 17 AN: 3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Pyruvate kinase deficiency of red cells Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

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Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs556763356; hg19: chr1-155260014;