NM_006755.2:c.78C>G

Variant names:

• chr11-747559-C-G
• rs886048659
• NM_006755.2:c.78C>G

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_006755.2(TALDO1):​c.78C>G​(p.Ala26Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000279 in 1,433,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0000028 (0 hom.)
• Consequence: TALDO1 NM_006755.2 synonymous
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.984
• Publications: 0 publications found

Genes affected

TALDO1 (HGNC:11559): (transaldolase 1) Transaldolase 1 is a key enzyme of the nonoxidative pentose phosphate pathway providing ribose-5-phosphate for nucleic acid synthesis and NADPH for lipid biosynthesis. This pathway can also maintain glutathione at a reduced state and thus protect sulfhydryl groups and cellular integrity from oxygen radicals. The functional gene of transaldolase 1 is located on chromosome 11 and a pseudogene is identified on chromosome 1 but there are conflicting map locations. The second and third exon of this gene were developed by insertion of a retrotransposable element. This gene is thought to be involved in multiple sclerosis. [provided by RefSeq, Jul 2008]

TALDO1 Gene-Disease associations (from GenCC):

• transaldolase deficiency

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae), Orphanet, G2P

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.34).
• BP7: Synonymous conserved (PhyloP=-0.984 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006755.2. 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
	TALDO1	NM_006755.2	MANE Select	c.78C>G	p.Ala26Ala	synonymous	Exon 1 of 8	NP_006746.1	A0A140VK56

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TALDO1	ENST00000319006.8	TSL:1 MANE Select	c.78C>G	p.Ala26Ala	synonymous	Exon 1 of 8	ENSP00000321259.3	P37837-1
	TALDO1	ENST00000528097.5	TSL:1	c.78C>G	p.Ala26Ala	synonymous	Exon 1 of 8	ENSP00000437098.1	F2Z393
	TALDO1	ENST00000896396.1		c.78C>G	p.Ala26Ala	synonymous	Exon 1 of 9	ENSP00000566455.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD2 exomes AF: 0.00000486 AC: 1 AN: 205920 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000108

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000279 AC: 4 AN: 1433846 Hom.: 0 Cov.: 31 AF XY: 0.00000421 AC XY: 3 AN XY: 712244

African (AFR) AF: 0.00 AC: 0 AN: 30770

American (AMR) AF: 0.00 AC: 0 AN: 42184

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25446

East Asian (EAS) AF: 0.00 AC: 0 AN: 37040

South Asian (SAS) AF: 0.00 AC: 0 AN: 82080

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50508

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5718

European-Non Finnish (NFE) AF: 0.00000363 AC: 4 AN: 1100904

Other (OTH) AF: 0.00 AC: 0 AN: 59196

GnomAD4 genome Cov.: 34

Alfa AF: 0.0000435 Hom.: 0

Bravo AF: 0.0000227

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Deficiency of transaldolase (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.34
CADD	Benign	12
DANN	Benign	0.84
PhyloP100		-0.98
PromoterAI		-0.029	Neutral

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: rs886048659; hg19: chr11-747559;