Genetic Variant AASS:p.Ile292Leu (chr7-122116653-T-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM2PM5BP4_Moderate

The NM_005763.4(AASS):c.874A>C(p.Ile292Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000136 in 1,614,020 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I292V) has been classified as Pathogenic.

Frequency

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

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

AASS
NM_005763.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.05

Variant links:

Genes affected

AASS (HGNC:17366): (aminoadipate-semialdehyde synthase) This gene encodes a bifunctional enzyme that catalyzes the first two steps in the mammalian lysine degradation pathway. The N-terminal and the C-terminal portions of this enzyme contain lysine-ketoglutarate reductase and saccharopine dehydrogenase activity, respectively, resulting in the conversion of lysine to alpha-aminoadipic semialdehyde. Mutations in this gene are associated with familial hyperlysinemia. [provided by RefSeq, Jul 2008]

AASS links:

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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;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr7-122116653-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 100643.Status of the report is no_assertion_criteria_provided, 0 stars.

BP4

Computational evidence support a benign effect (MetaRNN=0.20621374).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AASS	NM_005763.4 link	c.874A>C	p.Ile292Leu	missense_variant	Exon 8 of 24	ENST00000417368.7	NP_005754.2	Q9UDR5A4D0W4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AASS	ENST00000417368.7 link	c.874A>C	p.Ile292Leu	missense_variant	Exon 8 of 24	1	NM_005763.4	ENSP00000403768.2		Q9UDR5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152216

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD4 exome

AF:

0.0000144

AC:

AN:

1461804

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

727200

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000180

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.00

Gnomad4 OTH

AF:

0.000478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.086

BayesDel_addAF

Benign

-0.056

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Benign

0.23

T;T

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.11

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.70

.;T

M_CAP

Benign

0.021

MetaRNN

Benign

0.21

T;T

MetaSVM

Benign

-0.53

MutationAssessor

Benign

1.1

L;L

PrimateAI

Benign

0.26

PROVEAN

Benign

-0.20

N;N

REVEL

Benign

0.19

Sift

Benign

0.80

T;T

Sift4G

Benign

0.35

T;T

Polyphen

0.0

B;B

Vest4

0.29

MutPred

0.46

Gain of helix (P = 0.0199);Gain of helix (P = 0.0199);

MVP

0.68

MPC

0.14

ClinPred

0.64

GERP RS

4.7

Varity_R

0.081

gMVP

0.42

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over