rs118204089

Variant names:

• chr1-155295555-G-T
• rs118204089
• NM_000298.6:c.389C>A

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2 PP2 PP3_Strong PP5

The NM_000298.6(PKLR):​c.389C>A​(p.Ser130Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PKLR NM_000298.6 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 9.91
• Publications: 8 publications found

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]

PKLR Gene-Disease associations (from GenCC):

• pyruvate kinase deficiency of red cells

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Laboratory for Molecular Medicine, ClinGen
• pyruvate kinase hyperactivity

  Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 45 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 0.98056 (below the threshold of 3.09). Trascript score misZ: 1.5963 (below the threshold of 3.09). GenCC associations: The gene is linked to pyruvate kinase hyperactivity, pyruvate kinase deficiency of red cells.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.944
• PP5: Variant 1-155295555-G-T is Pathogenic according to our data. Variant chr1-155295555-G-T is described in ClinVar as Pathogenic. ClinVar VariationId is 1514.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000298.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PKLR	NM_000298.6	MANE Select	c.389C>A	p.Ser130Tyr	missense	Exon 4 of 11	NP_000289.1	P30613-1
	PKLR	NM_181871.4		c.296C>A	p.Ser99Tyr	missense	Exon 4 of 11	NP_870986.1	P30613-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PKLR	ENST00000342741.6	TSL:1 MANE Select	c.389C>A	p.Ser130Tyr	missense	Exon 4 of 11	ENSP00000339933.4	P30613-1
	PKLR	ENST00000392414.7	TSL:1	c.296C>A	p.Ser99Tyr	missense	Exon 4 of 11	ENSP00000376214.3	P30613-2
	PKLR	ENST00000434082.3	TSL:5	c.197C>A	p.Ser66Tyr	missense	Exon 4 of 5	ENSP00000398037.3	F8W6W2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Pyruvate kinase deficiency of red cells (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.68
BayesDel_addAF	Pathogenic	0.35	D
BayesDel_noAF	Pathogenic	0.27
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.90	D
Eigen	Uncertain	0.51
Eigen_PC	Uncertain	0.49
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.96	D
M_CAP	Pathogenic	0.45	D
MetaRNN	Pathogenic	0.94	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Benign	1.2	L
PhyloP100		9.9
PrimateAI	Uncertain	0.58	T
PROVEAN	Uncertain	-3.0	D
REVEL	Pathogenic	0.75
Sift	Uncertain	0.011	D
Sift4G	Uncertain	0.0090	D
Polyphen		1.0	D
Vest4		0.58
MutPred		0.84		Loss of disorder (P = 0.0178)
MVP		0.99
MPC		1.4
ClinPred		0.98	D
GERP RS		3.3
Varity_R		0.78
gMVP		0.88
Mutation Taster		=24/76	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs118204089; hg19: chr1-155265346;