1-23868258-G-T

Variant names:

• chr1-23868258-G-T
• NM_000147.5:c.29C>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000147.5(FUCA1):​c.29C>A​(p.Pro10Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000142 in 1,404,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P10R) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: FUCA1 NM_000147.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.702

Genes affected

FUCA1 (HGNC:4006): (alpha-L-fucosidase 1) The protein encoded by this gene is a lysosomal enzyme involved in the degradation of fucose-containing glycoproteins and glycolipids. Mutations in this gene are associated with fucosidosis (FUCA1D), which is an autosomal recessive lysosomal storage disease. A pseudogene of this locus is present on chr 2.[provided by RefSeq, Oct 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09921241).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FUCA1	NM_000147.5	c.29C>A	p.Pro10Gln	missense_variant	Exon 1 of 8	ENST00000374479.4	NP_000138.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FUCA1	ENST00000374479.4	c.29C>A	p.Pro10Gln	missense_variant	Exon 1 of 8	1	NM_000147.5	ENSP00000363603.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000142 AC: 2 AN: 1404786 Hom.: 0 Cov.: 33 AF XY: 0.00000288 AC XY: 2 AN XY: 694228

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: 0.00000184

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	Benign	0.093
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	9.2
DANN	Benign	0.97
DEOGEN2	Benign	0.064	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.068	N
LIST_S2	Benign	0.33	T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.099	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.81	L
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	-0.010	N
REVEL	Benign	0.030
Sift	Benign	0.065	T
Sift4G	Benign	0.32	T
Polyphen		0.27	B
Vest4		0.24
MutPred		0.28		Gain of MoRF binding (P = 0.0257);
MVP		0.22
MPC		0.41
ClinPred		0.26	T
GERP RS		-3.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0
Varity_R		0.053
gMVP		0.39

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: chr1-24194748;