rs185972191

Variant names:

• chr9-101435912-C-T
• rs185972191
• ENST00000648064.1:c.-10-5015G>A

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_Strong BP6 BS1 BS2

The ENST00000648064.1(ALDOB):​c.-10-5015G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00679 in 152,140 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.0068 (5 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ALDOB ENST00000648064.1 intron
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1 U:4 B:3
• Conservation: PhyloP100: 0.904

Genes affected

ALDOB (HGNC:417): (aldolase, fructose-bisphosphate B) Fructose-1,6-bisphosphate aldolase (EC 4.1.2.13) is a tetrameric glycolytic enzyme that catalyzes the reversible conversion of fructose-1,6-bisphosphate to glyceraldehyde 3-phosphate and dihydroxyacetone phosphate. Vertebrates have 3 aldolase isozymes which are distinguished by their electrophoretic and catalytic properties. Differences indicate that aldolases A, B, and C are distinct proteins, the products of a family of related 'housekeeping' genes exhibiting developmentally regulated expression of the different isozymes. The developing embryo produces aldolase A, which is produced in even greater amounts in adult muscle where it can be as much as 5% of total cellular protein. In adult liver, kidney and intestine, aldolase A expression is repressed and aldolase B is produced. In brain and other nervous tissue, aldolase A and C are expressed about equally. There is a high degree of homology between aldolase A and C. Defects in ALDOB cause hereditary fructose intolerance. [provided by RefSeq, Dec 2008]

ACMG classification

Our verdict: Benign. The variant received -13 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.7).
• BP6: Variant 9-101435912-C-T is Benign according to our data. Variant chr9-101435912-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 500745.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=4, Likely_benign=1, Benign=2}.
• BS1: Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.00679 (1033/152140) while in subpopulation AMR AF = 0.00949 (145/15284). AF 95% confidence interval is 0.00881. There are 5 homozygotes in GnomAd4. There are 463 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position FAILED quality control check.
• BS2: High Homozygotes in GnomAd4 at 5 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ALDOB	NM_000035.4	c.-214G>A		upstream_gene_variant		ENST00000647789.2	NP_000026.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ALDOB	ENST00000647789.2	c.-214G>A		upstream_gene_variant			NM_000035.4	ENSP00000497767.1

Frequencies

GnomAD3 genomes AF: 0.00680 AC: 1034 AN: 152022 Hom.: 5 Cov.: 32

Gnomad AFR AF: 0.00210

Gnomad AMI AF: 0.0615

Gnomad AMR AF: 0.00956

Gnomad ASJ AF: 0.0133

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00436

Gnomad FIN AF: 0.00104

Gnomad MID AF: 0.0127

Gnomad NFE AF: 0.00941

Gnomad OTH AF: 0.0110

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 10 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 10

Gnomad4 AFR exome AF: 0.00 AC: 0 AN: 2

Gnomad4 AMR exome AC: 0 AN: 0

Gnomad4 ASJ exome AC: 0 AN: 0

Gnomad4 EAS exome AC: 0 AN: 0

Gnomad4 SAS exome AF: 0.00 AC: 0 AN: 2

Gnomad4 FIN exome AC: 0 AN: 0

Gnomad4 NFE exome AF: 0.00 AC: 0 AN: 6

Gnomad4 Remaining exome AC: 0 AN: 0

GnomAD4 genome AF: 0.00679 AC: 1033 AN: 152140 Hom.: 5 Cov.: 32 AF XY: 0.00622 AC XY: 463 AN XY: 74398

Gnomad4 AFR AF: 0.00210 AC: 0.00209639 AN: 0.00209639

Gnomad4 AMR AF: 0.00949 AC: 0.00948705 AN: 0.00948705

Gnomad4 ASJ AF: 0.0133 AC: 0.0132565 AN: 0.0132565

Gnomad4 EAS AF: 0.00 AC: 0 AN: 0

Gnomad4 SAS AF: 0.00436 AC: 0.00436409 AN: 0.00436409

Gnomad4 FIN AF: 0.00104 AC: 0.00103832 AN: 0.00103832

Gnomad4 NFE AF: 0.00941 AC: 0.00941343 AN: 0.00941343

Gnomad4 OTH AF: 0.0109 AC: 0.0108798 AN: 0.0108798

Alfa AF: 0.00868 Hom.: 1

Bravo AF: 0.00751

Asia WGS AF: 0.000577 AC: 2 AN: 3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1 Uncertain:4 Benign:3

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:3 Benign:1

May 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

ALDOB: BS1, BS2 -

Mar 04, 2020

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Functional studies found that this variant causes loss of transcription from the promoter (Coffee et al., 2010); Nucleotide substitution has no predicted effect on splicing and is not conserved across species; This variant is associated with the following publications: (PMID: 20882353, 25910213) -

May 22, 2018

Eurofins Ntd Llc (ga)

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 07, 2022

Mayo Clinic Laboratories, Mayo Clinic

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

BS1 -

Hereditary fructosuria Pathogenic:1 Uncertain:1 Benign:1

Nov 13, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Mar 18, 2021

ATS em Genética Clínica, Universidade Federal do Rio Grande do Sul

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Feb 07, 2023

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: research

- -

not specified Benign:1

Mar 17, 2025

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: ALDOB c.-214G>A is located in the untranscribed region upstream of the ALDOB gene region. The variant allele was found at a frequency of 0.006 in 31338 control chromosomes in the gnomAD database, including 2 homozygotes. The observed variant frequency is approximately 1.33 fold of the estimated maximal expected allele frequency for a pathogenic variant in ALDOB causing Hereditary Fructose Intolerance phenotype (0.0045). c.-214G>A has been reported in the literature in individuals affected with Hereditary Fructose Intolerance (Coffee_2010). This report does not provide unequivocal conclusions about association of the variant with Hereditary Fructose Intolerance. At least one publication reports experimental evidence evaluating an impact on protein function, finding that the variant results in reduced nuclear protein binding to the promoter and reduced luciferase reporter expression (Coffee_2010). The following publication has been ascertained in the context of this evaluation (PMID: 20882353). ClinVar contains an entry for this variant (Variation ID: 500745). Based on the evidence outlined above, the variant was classified as likely benign. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.70
CADD	Benign	14
DANN	Benign	0.49

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs185972191; hg19: chr9-104198194;