22-49903353-T-TG

Variant summary

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

The NM_024105.4(ALG12):​c.*484_*485insC variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000169 in 456,810 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

ALG12
NM_024105.4 3_prime_UTR

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.18
Variant links:
Genes affected
ALG12 (HGNC:19358): (ALG12 alpha-1,6-mannosyltransferase) This gene encodes a member of the glycosyltransferase 22 family. The encoded protein catalyzes the addition of the eighth mannose residue in an alpha-1,6 linkage onto the dolichol-PP-oligosaccharide precursor (dolichol-PP-Man(7)GlcNAc(2)) required for protein glycosylation. Mutations in this gene have been associated with congenital disorder of glycosylation type Ig (CDG-Ig)characterized by abnormal N-glycosylation. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALG12NM_024105.4 linkuse as main transcriptc.*484_*485insC 3_prime_UTR_variant 10/10 ENST00000330817.11 NP_077010.1
ALG12XM_017028936.2 linkuse as main transcriptc.1238+825_1238+826insC intron_variant XP_016884425.1
ALG12XM_017028937.2 linkuse as main transcriptc.1238+825_1238+826insC intron_variant XP_016884426.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALG12ENST00000330817.11 linkuse as main transcriptc.*484_*485insC 3_prime_UTR_variant 10/101 NM_024105.4 ENSP00000333813 P1
ENST00000610245.1 linkuse as main transcriptn.1133dup non_coding_transcript_exon_variant 1/1

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
151778
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000295
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000181
AC:
25
AN:
137816
Hom.:
0
AF XY:
0.000134
AC XY:
10
AN XY:
74690
show subpopulations
Gnomad AFR exome
AF:
0.000155
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000947
Gnomad SAS exome
AF:
0.0000900
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000361
Gnomad OTH exome
AF:
0.000240
GnomAD4 exome
AF:
0.000184
AC:
56
AN:
305032
Hom.:
0
Cov.:
0
AF XY:
0.000156
AC XY:
27
AN XY:
173610
show subpopulations
Gnomad4 AFR exome
AF:
0.000115
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000107
Gnomad4 SAS exome
AF:
0.0000335
Gnomad4 FIN exome
AF:
0.0000779
Gnomad4 NFE exome
AF:
0.000312
Gnomad4 OTH exome
AF:
0.0000701
GnomAD4 genome
AF:
0.000138
AC:
21
AN:
151778
Hom.:
0
Cov.:
32
AF XY:
0.0000945
AC XY:
7
AN XY:
74110
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000295
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000170

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Congenital disorder of glycosylation Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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: rs752077223; hg19: chr22-50297001; API