rs17113312

Variant names:

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

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 2.60

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]

ALG9 links:

ENSG00000258529 (HGNC:):

ENSG00000258529 links:

Genome browser will be placed here

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 rank	MANE	Protein	UniProt
ALG9	NM_024740.2 link	c.764C>T	p.Ser255Leu	missense_variant	Exon 7 of 15	ENST00000616540.5	NP_079016.2	Q9H6U8-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ALG9	ENST00000616540.5 link	c.764C>T	p.Ser255Leu	missense_variant	Exon 7 of 15	1	NM_024740.2	ENSP00000482437.1		Q9H6U8-3
ENSG00000258529	ENST00000622211.4 link	c.1463C>T	p.Ser488Leu	missense_variant	Exon 11 of 19	2		ENSP00000482396.1		A0A087WZ62

Frequencies

GnomAD3 genomes

AF:

0.0113

AC:

1714

AN:

152072

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0397

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00288

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00764

GnomAD3 exomes

AF:

0.00274

AC:

683

AN:

249278

Hom.:

AF XY:

0.00210

AC XY:

284

AN XY:

135248

show subpopulations

Gnomad AFR exome

AF:

0.0396

Gnomad AMR exome

AF:

0.00165

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000442

Gnomad OTH exome

AF:

0.00116

GnomAD4 exome

AF:

0.00118

AC:

1719

AN:

1461786

Hom.:

Cov.:

AF XY:

0.00100

AC XY:

729

AN XY:

727194

show subpopulations

Gnomad4 AFR exome

AF:

0.0437

Gnomad4 AMR exome

AF:

0.00181

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000162

Gnomad4 OTH exome

AF:

0.00242

GnomAD4 genome

AF:

0.0113

AC:

1718

AN:

152190

Hom.:

Cov.:

AF XY:

0.0110

AC XY:

817

AN XY:

74402

show subpopulations

Gnomad4 AFR

AF:

0.0397

Gnomad4 AMR

AF:

0.00288

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00756

Alfa

AF:

0.00207

Hom.:

Bravo

AF:

0.0131

ESP6500AA

AF:

0.0383

AC:

141

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00347

AC:

419

Asia WGS

AF:

0.00318

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

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

Breakthrough Genomics, Breakthrough Genomics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Aug 19, 2015

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Mar 02, 2018

Athena Diagnostics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Benign:2

Nov 28, 2012

Eurofins Ntd Llc (ga)

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Apr 06, 2016

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

Gillessen-Kaesbach-Nishimura syndrome;C2931006:ALG9 congenital disorder of glycosylation

Benign:1

Oct 12, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

ALG9 congenital disorder of glycosylation

Benign:1

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.13

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

T;.;.;.;.

Eigen

Uncertain

0.21

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.92

D;D;D;D;D

MetaRNN

Benign

0.0080

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

L;.;.;L;.

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-2.7

.;D;D;.;.

REVEL

Benign

0.17

Sift

Benign

0.061

.;T;T;.;.

Sift4G

Benign

0.18

T;T;T;T;T

Polyphen

0.81

P;.;.;P;.

Vest4

0.45

MVP

0.80

MPC

0.28

ClinPred

0.012

GERP RS

5.9

Varity_R

0.23

gMVP

0.89

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.

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