chr7-122078966-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6_ModerateBS1

The NM_005763.4(AASS):​c.2397-16C>T variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000146 in 1,614,028 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00083 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000075 ( 1 hom. )

Consequence

AASS
NM_005763.4 splice_polypyrimidine_tract, intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.610
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.68).
BP6
Variant 7-122078966-G-A is Benign according to our data. Variant chr7-122078966-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 1990692.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000834 (127/152326) while in subpopulation AFR AF= 0.00289 (120/41570). AF 95% confidence interval is 0.00247. There are 0 homozygotes in gnomad4. There are 64 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AASSNM_005763.4 linkuse as main transcriptc.2397-16C>T splice_polypyrimidine_tract_variant, intron_variant ENST00000417368.7 NP_005754.2
AASSXM_011515725.3 linkuse as main transcriptc.2301-16C>T splice_polypyrimidine_tract_variant, intron_variant XP_011514027.1
AASSXM_047419710.1 linkuse as main transcriptc.2396+631C>T intron_variant XP_047275666.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AASSENST00000417368.7 linkuse as main transcriptc.2397-16C>T splice_polypyrimidine_tract_variant, intron_variant 1 NM_005763.4 ENSP00000403768 P1

Frequencies

GnomAD3 genomes
AF:
0.000828
AC:
126
AN:
152208
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00287
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.000478
GnomAD3 exomes
AF:
0.000131
AC:
33
AN:
251446
Hom.:
0
AF XY:
0.000110
AC XY:
15
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.00191
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000746
AC:
109
AN:
1461702
Hom.:
1
Cov.:
32
AF XY:
0.0000619
AC XY:
45
AN XY:
727168
show subpopulations
Gnomad4 AFR exome
AF:
0.00278
Gnomad4 AMR exome
AF:
0.0000671
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.000199
GnomAD4 genome
AF:
0.000834
AC:
127
AN:
152326
Hom.:
0
Cov.:
32
AF XY:
0.000859
AC XY:
64
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.00289
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000555
Hom.:
0
Bravo
AF:
0.000737
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 16, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.68
CADD
Benign
15
DANN
Benign
0.61

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: rs180824698; hg19: chr7-121719020; API