1-165680635-A-G

Position:

• chr1-165680635-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The ENST00000354775.5(ALDH9A1):​c.641T>C​(p.Leu214Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ALDH9A1 ENST00000354775.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.09

Genes affected

ALDH9A1 (HGNC:412): (aldehyde dehydrogenase 9 family member A1) This protein belongs to the aldehyde dehydrogenase family of proteins. It has a high activity for oxidation of gamma-aminobutyraldehyde and other amino aldehydes. The enzyme catalyzes the dehydrogenation of gamma-aminobutyraldehyde to gamma-aminobutyric acid (GABA). This isozyme is a tetramer of identical 54-kD subunits. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.747

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ALDH9A1	NM_000696.4	c.641T>C	p.Leu214Ser	missense_variant	5/11	ENST00000354775.5	NP_000687.3
ALDH9A1	NM_001365774.2	c.359T>C	p.Leu120Ser	missense_variant	5/11		NP_001352703.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ALDH9A1	ENST00000354775.5	c.641T>C	p.Leu214Ser	missense_variant	5/11	1	NM_000696.4	ENSP00000346827	P1
ALDH9A1	ENST00000461664.5	n.751T>C		non_coding_transcript_exon_variant	5/5	3
ALDH9A1	ENST00000491436.1	n.1T>C		non_coding_transcript_exon_variant	1/4	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 24, 2024

The c.641T>C (p.L214S) alteration is located in exon 5 (coding exon 5) of the ALDH9A1 gene. This alteration results from a T to C substitution at nucleotide position 641, causing the leucine (L) at amino acid position 214 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
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.39	T
Eigen	Uncertain	0.36
Eigen_PC	Uncertain	0.48
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.97	D
M_CAP	Uncertain	0.090	D
MetaRNN	Pathogenic	0.75	D
MetaSVM	Uncertain	-0.20	T
MutationTaster	Benign	1.0	D;D
PrimateAI	Benign	0.46	T
PROVEAN	Uncertain	-3.4	D
REVEL	Uncertain	0.58
Sift	Uncertain	0.022	D
Sift4G	Uncertain	0.028	D
Polyphen		0.40	B
Vest4		0.68
MVP		0.90
MPC		0.35
ClinPred		0.98	D
GERP RS		5.7
gMVP		0.88

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-165649872;