rs45584036

Positions:

• chr11-66850358-G-A
• chr11-66850358-G-C

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_001040716.2(PC):​c.2580C>T​(p.Asp860=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00227 in 1,614,054 control chromosomes in the GnomAD database, including 77 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.012 (36 hom., cov: 33)
  • Exomes 𝑓: 0.0013 (41 hom.)
• Consequence: PC NM_001040716.2 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:5
• Conservation: PhyloP100: -0.140

Genes affected

PC (HGNC:8636): (pyruvate carboxylase) This gene encodes pyruvate carboxylase, which requires biotin and ATP to catalyse the carboxylation of pyruvate to oxaloacetate. The active enzyme is a homotetramer arranged in a tetrahedron which is located exclusively in the mitochondrial matrix. Pyruvate carboxylase is involved in gluconeogenesis, lipogenesis, insulin secretion and synthesis of the neurotransmitter glutamate. Mutations in this gene have been associated with pyruvate carboxylase deficiency. Alternatively spliced transcript variants with different 5' UTRs, but encoding the same protein, have been found for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.76).
• BP6: Variant 11-66850358-G-A is Benign according to our data. Variant chr11-66850358-G-A is described in ClinVar as [Benign]. Clinvar id is 138581.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-0.14 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.012 (1825/152228) while in subpopulation AFR AF= 0.0415 (1725/41522). AF 95% confidence interval is 0.0399. There are 36 homozygotes in gnomad4. There are 890 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 36 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PC	NM_001040716.2	c.2580C>T	p.Asp860=	synonymous_variant	19/23	ENST00000393960.7	NP_001035806.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PC	ENST00000393960.7	c.2580C>T	p.Asp860=	synonymous_variant	19/23	5	NM_001040716.2	ENSP00000377532	P1

Frequencies

GnomAD3 genomes AF: 0.0120 AC: 1822 AN: 152110 Hom.: 36 Cov.: 33

Gnomad AFR AF: 0.0416

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00452

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000221

Gnomad OTH AF: 0.00669

GnomAD3 exomes AF: 0.00319 AC: 803 AN: 251402 Hom.: 16 AF XY: 0.00233 AC XY: 317 AN XY: 135910

Gnomad AFR exome AF: 0.0447

Gnomad AMR exome AF: 0.00176

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000616

Gnomad OTH exome AF: 0.00114

GnomAD4 exome AF: 0.00126 AC: 1837 AN: 1461826 Hom.: 41 Cov.: 32 AF XY: 0.00105 AC XY: 760 AN XY: 727208

Gnomad4 AFR exome AF: 0.0448

Gnomad4 AMR exome AF: 0.00210

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000629

Gnomad4 OTH exome AF: 0.00247

GnomAD4 genome AF: 0.0120 AC: 1825 AN: 152228 Hom.: 36 Cov.: 33 AF XY: 0.0120 AC XY: 890 AN XY: 74414

Gnomad4 AFR AF: 0.0415

Gnomad4 AMR AF: 0.00451

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000221

Gnomad4 OTH AF: 0.00662

Alfa AF: 0.00553 Hom.: 8

Bravo AF: 0.0147

Asia WGS AF: 0.00202 AC: 7 AN: 3478

EpiCase AF: 0.000218

EpiControl AF: 0.000119

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Pyruvate carboxylase deficiency Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided Benign:2

Benign, no assertion criteria provided	clinical testing	Mayo Clinic Laboratories, Mayo Clinic	Aug 04, 2017	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jan 04, 2014

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.76
CADD	Benign	3.1
DANN	Benign	0.87

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: rs45584036; hg19: chr11-66617829;