rs77191760

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The ENST00000616540.5(ALG9):​c.1794C>T​(p.Tyr598=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000428 in 1,613,960 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0022 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00024 ( 2 hom. )

Consequence

ALG9
ENST00000616540.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.466
Variant links:
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 -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.67).
BP6
Variant 11-111786460-G-A is Benign according to our data. Variant chr11-111786460-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 384997.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.466 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00219 (333/152154) while in subpopulation AFR AF= 0.0074 (307/41494). AF 95% confidence interval is 0.00672. There are 2 homozygotes in gnomad4. There are 157 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALG9NM_024740.2 linkuse as main transcriptc.1794C>T p.Tyr598= synonymous_variant 15/15 ENST00000616540.5 NP_079016.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALG9ENST00000616540.5 linkuse as main transcriptc.1794C>T p.Tyr598= synonymous_variant 15/151 NM_024740.2 ENSP00000482437 Q9H6U8-3

Frequencies

GnomAD3 genomes
AF:
0.00220
AC:
335
AN:
152036
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00747
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00288
GnomAD3 exomes
AF:
0.000618
AC:
154
AN:
249310
Hom.:
1
AF XY:
0.000392
AC XY:
53
AN XY:
135320
show subpopulations
Gnomad AFR exome
AF:
0.00865
Gnomad AMR exome
AF:
0.000405
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000354
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000244
AC:
357
AN:
1461806
Hom.:
2
Cov.:
31
AF XY:
0.000210
AC XY:
153
AN XY:
727210
show subpopulations
Gnomad4 AFR exome
AF:
0.00860
Gnomad4 AMR exome
AF:
0.000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000279
Gnomad4 OTH exome
AF:
0.000215
GnomAD4 genome
AF:
0.00219
AC:
333
AN:
152154
Hom.:
2
Cov.:
32
AF XY:
0.00211
AC XY:
157
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.00740
Gnomad4 AMR
AF:
0.00105
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00285
Alfa
AF:
0.000379
Hom.:
0
Bravo
AF:
0.00271
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenSep 01, 2024ALG9: BP4, BP7 -
Likely benign, criteria provided, single submitterclinical testingGeneDxMay 01, 2018- -
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Gillessen-Kaesbach-Nishimura syndrome;C2931006:ALG9 congenital disorder of glycosylation Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsJul 29, 2021- -
ALG9 congenital disorder of glycosylation Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.67
CADD
Benign
6.1
DANN
Benign
0.67
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs77191760; hg19: chr11-111657184; API