rs17113312
Positions:
Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The NM_024740.2(ALG9):c.764C>T(p.Ser255Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00213 in 1,613,976 control chromosomes in the GnomAD database, including 84 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.011 ( 47 hom., cov: 32)
Exomes 𝑓: 0.0012 ( 37 hom. )
Consequence
ALG9
NM_024740.2 missense
NM_024740.2 missense
Scores
6
12
Clinical Significance
Conservation
PhyloP100: 2.60
Genes affected
ALG9 (HGNC:15672): (ALG9 alpha-1,2-mannosyltransferase) This gene encodes an alpha-1,2-mannosyltransferase enzyme that functions in lipid-linked oligosaccharide assembly. Mutations in this gene result in congenital disorder of glycosylation type Il. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -20 ACMG points.
BP4
Computational evidence support a benign effect (MetaRNN=0.008018106).
BP6
Variant 11-111853674-G-A is Benign according to our data. Variant chr11-111853674-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 96136.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0113 (1718/152190) while in subpopulation AFR AF= 0.0397 (1649/41516). AF 95% confidence interval is 0.0381. There are 47 homozygotes in gnomad4. There are 817 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 47 AR gene
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ALG9 | NM_024740.2 | c.764C>T | p.Ser255Leu | missense_variant | 7/15 | ENST00000616540.5 | NP_079016.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
ALG9 | ENST00000616540.5 | c.764C>T | p.Ser255Leu | missense_variant | 7/15 | 1 | NM_024740.2 | ENSP00000482437.1 | ||
ENSG00000258529 | ENST00000622211.4 | c.1463C>T | p.Ser488Leu | missense_variant | 11/19 | 2 | ENSP00000482396.1 |
Frequencies
GnomAD3 genomes AF: 0.0113 AC: 1714AN: 152072Hom.: 46 Cov.: 32
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GnomAD3 exomes AF: 0.00274 AC: 683AN: 249278Hom.: 10 AF XY: 0.00210 AC XY: 284AN XY: 135248
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GnomAD4 exome AF: 0.00118 AC: 1719AN: 1461786Hom.: 37 Cov.: 31 AF XY: 0.00100 AC XY: 729AN XY: 727194
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GnomAD4 genome AF: 0.0113 AC: 1718AN: 152190Hom.: 47 Cov.: 32 AF XY: 0.0110 AC XY: 817AN XY: 74402
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ESP6500AA
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141
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Benign:3
Benign, criteria provided, single submitter | clinical testing | Athena Diagnostics | Mar 02, 2018 | - - |
Likely benign, criteria provided, single submitter | not provided | Breakthrough Genomics, Breakthrough Genomics | - | - - |
Likely benign, criteria provided, single submitter | clinical testing | Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics | Aug 19, 2015 | - - |
not specified Benign:2
Benign, criteria provided, single submitter | clinical testing | GeneDx | Apr 06, 2016 | This 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. - |
Benign, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Nov 28, 2012 | - - |
Gillessen-Kaesbach-Nishimura syndrome;C2931006:ALG9 congenital disorder of glycosylation Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Oct 12, 2021 | - - |
ALG9 congenital disorder of glycosylation Benign:1
Benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 24, 2024 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
T;.;.;.;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D;D;D;D
MetaRNN
Benign
T;T;T;T;T
MetaSVM
Benign
T
MutationAssessor
Benign
L;.;.;L;.
PrimateAI
Benign
T
PROVEAN
Uncertain
.;D;D;.;.
REVEL
Benign
Sift
Benign
.;T;T;.;.
Sift4G
Benign
T;T;T;T;T
Polyphen
P;.;.;P;.
Vest4
MVP
MPC
0.28
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at