rs855325

Positions:

• chr1-63599109-T-C
• chr1-63599109-T-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002633.3(PGM1):​c.246+5375T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.76 in 152,120 control chromosomes in the GnomAD database, including 44,552 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.76 (44552 hom., cov: 31)
• Consequence: PGM1 NM_002633.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0120

Genes affected

PGM1 (HGNC:8905): (phosphoglucomutase 1) The protein encoded by this gene is an isozyme of phosphoglucomutase (PGM) and belongs to the phosphohexose mutase family. There are several PGM isozymes, which are encoded by different genes and catalyze the transfer of phosphate between the 1 and 6 positions of glucose. In most cell types, this PGM isozyme is predominant, representing about 90% of total PGM activity. In red cells, PGM2 is a major isozyme. This gene is highly polymorphic. Mutations in this gene cause glycogen storage disease type 14. Alternativley spliced transcript variants encoding different isoforms have been identified in this gene.[provided by RefSeq, Mar 2010]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.96).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.867 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PGM1	NM_002633.3	c.246+5375T>C		intron_variant		ENST00000371084.8
PGM1	NM_001172819.2	c.-346+4965T>C		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PGM1	ENST00000371084.8	c.246+5375T>C		intron_variant		1	NM_002633.3	P1
PGM1	ENST00000540265.5	c.-346+4965T>C		intron_variant		2
PGM1	ENST00000650546.1	c.246+5375T>C		intron_variant
PGM1	ENST00000473117.2	n.74-814T>C		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes AF: 0.760 AC: 115503 AN: 152002 Hom.: 44497 Cov.: 31

Gnomad AFR AF: 0.874

Gnomad AMI AF: 0.702

Gnomad AMR AF: 0.777

Gnomad ASJ AF: 0.775

Gnomad EAS AF: 0.841

Gnomad SAS AF: 0.865

Gnomad FIN AF: 0.680

Gnomad MID AF: 0.826

Gnomad NFE AF: 0.685

Gnomad OTH AF: 0.769

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.760 AC: 115614 AN: 152120 Hom.: 44552 Cov.: 31 AF XY: 0.761 AC XY: 56610 AN XY: 74368

Gnomad4 AFR AF: 0.874

Gnomad4 AMR AF: 0.777

Gnomad4 ASJ AF: 0.775

Gnomad4 EAS AF: 0.842

Gnomad4 SAS AF: 0.864

Gnomad4 FIN AF: 0.680

Gnomad4 NFE AF: 0.685

Gnomad4 OTH AF: 0.770

Alfa AF: 0.723 Hom.: 6828

Bravo AF: 0.773

Asia WGS AF: 0.850 AC: 2956 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.96
CADD	Benign	4.1
DANN	Benign	0.69

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

Other links and lift over

dbSNP: rs855325; hg19: chr1-64064780;