rs61744789

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_033087.4(ALG2):ā€‹c.84C>Gā€‹(p.Gly28=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00244 in 1,597,644 control chromosomes in the GnomAD database, including 80 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.0034 ( 11 hom., cov: 33)
Exomes š‘“: 0.0023 ( 69 hom. )

Consequence

ALG2
NM_033087.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.0440
Variant links:
Genes affected
ALG2 (HGNC:23159): (ALG2 alpha-1,3/1,6-mannosyltransferase) This gene encodes a member of the glycosyltransferase 1 family. The encoded protein acts as an alpha 1,3 mannosyltransferase, mannosylating Man(2)GlcNAc(2)-dolichol diphosphate and Man(1)GlcNAc(2)-dolichol diphosphate to form Man(3)GlcNAc(2)-dolichol diphosphate. Defects in this gene have been associated with congenital disorder of glycosylation type Ih (CDG-Ii). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.54).
BP6
Variant 9-99221811-G-C is Benign according to our data. Variant chr9-99221811-G-C is described in ClinVar as [Benign]. Clinvar id is 193473.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.044 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0538 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALG2NM_033087.4 linkuse as main transcriptc.84C>G p.Gly28= synonymous_variant 1/2 ENST00000476832.2 NP_149078.1
ALG2NR_024532.2 linkuse as main transcriptn.132C>G non_coding_transcript_exon_variant 1/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALG2ENST00000476832.2 linkuse as main transcriptc.84C>G p.Gly28= synonymous_variant 1/21 NM_033087.4 ENSP00000417764 P1Q9H553-1
ALG2ENST00000238477.5 linkuse as main transcriptc.84C>G p.Gly28= synonymous_variant, NMD_transcript_variant 1/32 ENSP00000432675

Frequencies

GnomAD3 genomes
AF:
0.00346
AC:
526
AN:
152242
Hom.:
11
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000772
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0105
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0591
Gnomad SAS
AF:
0.00186
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000176
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00885
AC:
1987
AN:
224464
Hom.:
40
AF XY:
0.00709
AC XY:
882
AN XY:
124482
show subpopulations
Gnomad AFR exome
AF:
0.00107
Gnomad AMR exome
AF:
0.0261
Gnomad ASJ exome
AF:
0.000105
Gnomad EAS exome
AF:
0.0576
Gnomad SAS exome
AF:
0.00132
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000138
Gnomad OTH exome
AF:
0.00387
GnomAD4 exome
AF:
0.00233
AC:
3370
AN:
1445284
Hom.:
69
Cov.:
32
AF XY:
0.00211
AC XY:
1515
AN XY:
719426
show subpopulations
Gnomad4 AFR exome
AF:
0.000389
Gnomad4 AMR exome
AF:
0.0244
Gnomad4 ASJ exome
AF:
0.0000384
Gnomad4 EAS exome
AF:
0.0451
Gnomad4 SAS exome
AF:
0.00161
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000106
Gnomad4 OTH exome
AF:
0.00366
GnomAD4 genome
AF:
0.00344
AC:
524
AN:
152360
Hom.:
11
Cov.:
33
AF XY:
0.00376
AC XY:
280
AN XY:
74508
show subpopulations
Gnomad4 AFR
AF:
0.000769
Gnomad4 AMR
AF:
0.0104
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.0592
Gnomad4 SAS
AF:
0.00186
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.00236
Alfa
AF:
0.00126
Hom.:
0
Bravo
AF:
0.00467
Asia WGS
AF:
0.0260
AC:
91
AN:
3478
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Apr 09, 2015- -
Benign, criteria provided, single submitterclinical testingGeneDxJan 14, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
ALG2-congenital disorder of glycosylation;C4015597:Congenital myasthenic syndrome 14 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 26, 2024- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.54
CADD
Benign
5.1
DANN
Benign
0.79

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs61744789; hg19: chr9-101984093; API