2-168456501-A-C

Variant names:

• chr2-168456501-A-C
• NM_203463.3:c.53A>C

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1 PM2 PP3

The NM_203463.3(CERS6):​c.53A>C​(p.Asn18Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,682 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CERS6 NM_203463.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 8.84

Genes affected

CERS6 (HGNC:23826): (ceramide synthase 6) Enables sphingosine N-acyltransferase activity. Involved in ceramide biosynthetic process. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

LOC102724081 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM1: In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity CERS6_HUMAN
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.81

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CERS6	NM_203463.3	c.53A>C	p.Asn18Thr	missense_variant	Exon 1 of 10	ENST00000305747.11	NP_982288.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CERS6	ENST00000305747.11	c.53A>C	p.Asn18Thr	missense_variant	Exon 1 of 10	2	NM_203463.3	ENSP00000306579.6
CERS6	ENST00000392687.4	c.53A>C	p.Asn18Thr	missense_variant	Exon 1 of 11	1		ENSP00000376453.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461682 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727180

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.71
BayesDel_addAF	Uncertain	0.023	T
BayesDel_noAF	Benign	-0.20
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Benign	0.37	T;.
Eigen	Pathogenic	0.72
Eigen_PC	Pathogenic	0.68
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.95	D;D
M_CAP	Pathogenic	0.42	D
MetaRNN	Pathogenic	0.81	D;D
MetaSVM	Uncertain	-0.064	T
MutationAssessor	Uncertain	2.2	M;M
PrimateAI	Uncertain	0.78	T
PROVEAN	Uncertain	-4.0	D;D
REVEL	Uncertain	0.59
Sift	Uncertain	0.0050	D;D
Sift4G	Benign	0.12	T;T
Polyphen		1.0	D;.
Vest4		0.67
MutPred		0.65		Loss of catalytic residue at N18 (P = 0.0064);Loss of catalytic residue at N18 (P = 0.0064);
MVP		0.43
MPC		0.87
ClinPred		0.99	D
GERP RS		4.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.69
gMVP		0.90

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: chr2-169313011;