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GeneBe

chr12-105046933-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001034173.4(ALDH1L2):​c.1723C>A​(p.Arg575Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,614,030 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: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

ALDH1L2
NM_001034173.4 missense

Scores

1
5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.67
Variant links:
Genes affected
ALDH1L2 (HGNC:26777): (aldehyde dehydrogenase 1 family member L2) This gene encodes a member of both the aldehyde dehydrogenase superfamily and the formyl transferase superfamily. This member is the mitochondrial form of 10-formyltetrahydrofolate dehydrogenase (FDH), which converts 10-formyltetrahydrofolate to tetrahydrofolate and CO2 in an NADP(+)-dependent reaction, and plays an essential role in the distribution of one-carbon groups between the cytosolic and mitochondrial compartments of the cell. Alternatively spliced transcript variants have been found for this gene.[provided by RefSeq, Oct 2010]
NOPCHAP1 (HGNC:28628): (NOP protein chaperone 1) Enables box C/D snoRNP complex binding activity. Involved in box C/D snoRNP assembly. Predicted to be located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.40833926).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ALDH1L2NM_001034173.4 linkuse as main transcriptc.1723C>A p.Arg575Ser missense_variant 14/23 ENST00000258494.14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ALDH1L2ENST00000258494.14 linkuse as main transcriptc.1723C>A p.Arg575Ser missense_variant 14/231 NM_001034173.4 P1Q3SY69-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152172
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251490
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135920
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000272
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461858
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152172
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74338
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 28, 2024The c.1723C>A (p.R575S) alteration is located in exon 14 (coding exon 14) of the ALDH1L2 gene. This alteration results from a C to A substitution at nucleotide position 1723, causing the arginine (R) at amino acid position 575 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.51
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.22
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.35
T
Eigen
Benign
0.040
Eigen_PC
Benign
0.19
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.41
T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
-0.59
N
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.33
T
PROVEAN
Uncertain
-3.4
D
REVEL
Uncertain
0.39
Sift
Benign
0.055
T
Sift4G
Benign
0.075
T
Polyphen
0.73
P
Vest4
0.57
MVP
0.82
MPC
0.36
ClinPred
0.39
T
GERP RS
4.1
Varity_R
0.32
gMVP
0.76

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs138908674; hg19: chr12-105440711; COSMIC: COSV51557792; API