chr13-36965654-T-C

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4BS1_SupportingBS2

The NM_013338.5(ALG5):c.694A>G(p.Arg232Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000545 in 1,614,038 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000057 ( 1 hom. )

Consequence

ALG5
NM_013338.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.17

Variant links:

Genes affected

ALG5 (HGNC:20266): (ALG5 dolichyl-phosphate beta-glucosyltransferase) This gene encodes a member of the glycosyltransferase 2 family. The encoded protein participates in glucosylation of the oligomannose core in N-linked glycosylation of proteins. The addition of glucose residues to the oligomannose core is necessary to ensure substrate recognition, and therefore, effectual transfer of the oligomannose core to the nascent glycoproteins. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2008]

ALG5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.36215153).

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000328 (5/152314) while in subpopulation SAS AF= 0.00104 (5/4826). AF 95% confidence interval is 0.000408. There are 0 homozygotes in gnomad4. There are 4 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ALG5	NM_013338.5 link	c.694A>G	p.Arg232Gly	missense_variant	Exon 8 of 10	ENST00000239891.4	NP_037470.1	Q9Y673-1
ALG5	NM_001142364.1 link	c.604A>G	p.Arg202Gly	missense_variant	Exon 7 of 9		NP_001135836.1	Q9Y673-2
ALG5	XM_047430283.1 link	c.505A>G	p.Arg169Gly	missense_variant	Exon 6 of 8		XP_047286239.1
ALG5	XR_007063678.1 link	n.870A>G		non_coding_transcript_exon_variant	Exon 9 of 9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ALG5	ENST00000239891.4 link	c.694A>G	p.Arg232Gly	missense_variant	Exon 8 of 10	1	NM_013338.5	ENSP00000239891.3		Q9Y673-1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00104

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000111

AC:

AN:

251190

Hom.:

AF XY:

0.000155

AC XY:

AN XY:

135742

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000882

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000568

AC:

AN:

1461724

Hom.:

Cov.:

AF XY:

0.0000866

AC XY:

AN XY:

727170

show subpopulations

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:

0.000846

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000630

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152314

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74478

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000306

Hom.:

ExAC

AF:

0.000157

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 14, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.694A>G (p.R232G) alteration is located in exon 8 (coding exon 8) of the ALG5 gene. This alteration results from a A to G substitution at nucleotide position 694, causing the arginine (R) at amino acid position 232 to be replaced by a glycine (G). 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

Benign

0.26

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Uncertain

-0.050

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.61

.;D

Eigen

Uncertain

0.37

Eigen_PC

Uncertain

0.38

FATHMM_MKL

Uncertain

0.85

LIST_S2

Pathogenic

0.98

D;D

M_CAP

Benign

0.055

MetaRNN

Benign

0.36

T;T

MetaSVM

Benign

-0.60

MutationAssessor

Uncertain

2.7

.;M

PrimateAI

Uncertain

0.69

PROVEAN

Pathogenic

-5.0

D;D

REVEL

Uncertain

0.35

Sift

Uncertain

0.0020

D;D

Sift4G

Uncertain

0.0040

D;D

Polyphen

0.95

P;D

Vest4

0.82

MutPred

0.57

.;Gain of catalytic residue at D233 (P = 0.0013);

MVP

0.64

MPC

0.91

ClinPred

0.65

GERP RS

4.6

Varity_R

0.69

gMVP

0.83

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over