NM_138326.3:c.117G>T

Variant names:

• chr2-134859275-G-T
• rs539329795
• NM_138326.3:c.117G>T

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_138326.3(ACMSD):​c.117G>T​(p.Leu39Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000805 in 1,614,062 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: 0.0000082 (0 hom.)
• Consequence: ACMSD NM_138326.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.68
• Publications: 0 publications found

Genes affected

ACMSD (HGNC:19288): (aminocarboxymuconate semialdehyde decarboxylase) The neuronal excitotoxin quinolinate is an intermediate in the de novo synthesis pathway of NAD from tryptophan, and has been implicated in the pathogenesis of several neurodegenerative disorders. Quinolinate is derived from alpha-amino-beta-carboxy-muconate-epsilon-semialdehyde (ACMS). ACMSD (ACMS decarboxylase; EC 4.1.1.45) can divert ACMS to a benign catabolite and thus prevent the accumulation of quinolinate from ACMS.[supplied by OMIM, Oct 2004]

CCNT2-AS1 (HGNC:40130): (CCNT2 antisense RNA 1)

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.14030096).
• BS2: High AC in GnomAdExome4 at 12 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_138326.3. 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
	ACMSD	NM_138326.3	MANE Select	c.117G>T	p.Leu39Phe	missense	Exon 3 of 10	NP_612199.2	Q8TDX5-1
	ACMSD	NM_001307983.2		c.-8G>T		5_prime_UTR	Exon 4 of 10	NP_001294912.1	A0A0S2Z681

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACMSD	ENST00000356140.10	TSL:1 MANE Select	c.117G>T	p.Leu39Phe	missense	Exon 3 of 10	ENSP00000348459.5	Q8TDX5-1
	ACMSD	ENST00000392928.5	TSL:1	c.-8G>T		5_prime_UTR	Exon 4 of 10	ENSP00000376659.1	Q8TDX5-2
	ACMSD	ENST00000904289.1		c.117G>T	p.Leu39Phe	missense	Exon 3 of 11	ENSP00000574348.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152136 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

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

GnomAD2 exomes AF: 0.0000437 AC: 11 AN: 251440 AF XY: 0.0000294

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000544

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000821 AC: 12 AN: 1461808 Hom.: 0 Cov.: 30 AF XY: 0.00000688 AC XY: 5 AN XY: 727212

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.0000224 AC: 1 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.000252 AC: 10 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86246

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111956

Other (OTH) AF: 0.0000166 AC: 1 AN: 60390

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152254 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 74434

African (AFR) AF: 0.00 AC: 0 AN: 41530

American (AMR) AF: 0.00 AC: 0 AN: 15294

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5178

South Asian (SAS) AF: 0.00 AC: 0 AN: 4820

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10614

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68026

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.0000494 AC: 6

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.58
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.34
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.077	T
Eigen	Uncertain	0.37
Eigen_PC	Uncertain	0.48
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.0059	T
MetaRNN	Benign	0.14	T
MetaSVM	Benign	-0.59	T
MutationAssessor	Benign	1.8	L
PhyloP100		8.7
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	-1.7	N
REVEL	Benign	0.16
Sift	Uncertain	0.0040	D
Sift4G	Benign	0.073	T
Polyphen		0.27	B
Vest4		0.35
MutPred		0.64		Gain of methylation at K38 (P = 0.0267)
MVP		0.36
MPC		0.096
ClinPred		0.22	T
GERP RS		4.9
Varity_R		0.63
gMVP		0.83
Mutation Taster		=184/116	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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: rs539329795; hg19: chr2-135616845;