Genetic Variant ALG9:p.Ser17Ile (chr11-111871433-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001352413.1(ALG9):c.-468G>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,536,450 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

ALG9
NM_001352413.1 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.09

Publications

1 publications found

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 Gene-Disease associations (from GenCC):

ALG9-associated autosomal dominant polycystic kidney disease
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
ALG9-congenital disorder of glycosylation
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, G2P
autosomal dominant polycystic kidney disease
Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet
Gillessen-Kaesbach-Nishimura syndrome
Inheritance: AR Classification: MODERATE Submitted by: Ambry Genetics

ALG9 links:

ENSG00000258529 (HGNC:):

ENSG00000258529 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.07199055).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001352413.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ALG9	NM_024740.2	MANE Select	c.50G>T	p.Ser17Ile	missense	Exon 1 of 15	NP_079016.2	Q9H6U8-3
ALG9	NM_001352413.1		c.-468G>T		5_prime_UTR_premature_start_codon_gain	Exon 1 of 15	NP_001339342.1	Q9H6U8-4
ALG9	NM_001352409.1		c.-325G>T		5_prime_UTR_premature_start_codon_gain	Exon 1 of 14	NP_001339338.1	Q9H6U8-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ALG9	ENST00000616540.5	TSL:1 MANE Select	c.50G>T	p.Ser17Ile	missense	Exon 1 of 15	ENSP00000482437.1	Q9H6U8-3
ENSG00000258529	ENST00000622211.4	TSL:2	c.749G>T	p.Ser250Ile	missense	Exon 5 of 19	ENSP00000482396.1	A0A087WZ62
ALG9	ENST00000614444.4	TSL:1	c.50G>T	p.Ser17Ile	missense	Exon 1 of 15	ENSP00000484200.1	Q9H6U8-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000146

AC:

AN:

136950

AF XY:

0.0000268

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000367

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000275

AC:

AN:

1384216

Hom.:

Cov.:

AF XY:

0.0000293

AC XY:

AN XY:

683252

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31570

American (AMR)

AF:

0.00

AC:

AN:

35694

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25168

East Asian (EAS)

AF:

0.00

AC:

AN:

35722

South Asian (SAS)

AF:

0.00

AC:

AN:

79206

European-Finnish (FIN)

AF:

0.00

AC:

AN:

34694

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5610

European-Non Finnish (NFE)

AF:

0.0000343

AC:

AN:

1078682

Other (OTH)

AF:

0.0000173

AC:

AN:

57870

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152234

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74382

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41470

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.089

BayesDel_noAF

Benign

-0.25

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.13

Eigen

Benign

-0.66

Eigen_PC

Benign

-0.54

FATHMM_MKL

Benign

0.34

LIST_S2

Benign

0.69

MetaRNN

Benign

0.072

MetaSVM

Benign

-1.1

PhyloP100

1.1

Sift4G

Benign

0.14

Polyphen

0.0

Vest4

0.14

MutPred

0.27

Loss of phosphorylation at S17 (P = 0.0068)

MVP

0.29

ClinPred

0.97

GERP RS

3.0

PromoterAI

0.042

Neutral

(source)

Varity_R

0.096

gMVP

0.36

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over