rs8177804

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The ENST00000409155.8(ALAD):​c.262-176G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.141 in 152,240 control chromosomes in the GnomAD database, including 1,628 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.14 ( 1628 hom., cov: 33)

Consequence

ALAD
ENST00000409155.8 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.943
Variant links:
Genes affected
ALAD (HGNC:395): (aminolevulinate dehydratase) The ALAD enzyme is composed of 8 identical subunits and catalyzes the condensation of 2 molecules of delta-aminolevulinate to form porphobilinogen (a precursor of heme, cytochromes and other hemoproteins). ALAD catalyzes the second step in the porphyrin and heme biosynthetic pathway; zinc is essential for enzymatic activity. ALAD enzymatic activity is inhibited by lead and a defect in the ALAD structural gene can cause increased sensitivity to lead poisoning and acute hepatic porphyria. Alternative splicing of this gene results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Dec 2015]

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 (BayesDel_noAF=-0.93).
BP6
Variant 9-113391109-C-T is Benign according to our data. Variant chr9-113391109-C-T is described in ClinVar as [Benign]. Clinvar id is 1238193.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.211 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALADNM_000031.6 linkuse as main transcriptc.262-176G>A intron_variant ENST00000409155.8 NP_000022.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALADENST00000409155.8 linkuse as main transcriptc.262-176G>A intron_variant 1 NM_000031.6 ENSP00000386284 P1P13716-1

Frequencies

GnomAD3 genomes
AF:
0.141
AC:
21486
AN:
152122
Hom.:
1628
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0960
Gnomad AMI
AF:
0.0987
Gnomad AMR
AF:
0.113
Gnomad ASJ
AF:
0.233
Gnomad EAS
AF:
0.135
Gnomad SAS
AF:
0.222
Gnomad FIN
AF:
0.159
Gnomad MID
AF:
0.139
Gnomad NFE
AF:
0.163
Gnomad OTH
AF:
0.149
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome
AF:
0.141
AC:
21491
AN:
152240
Hom.:
1628
Cov.:
33
AF XY:
0.141
AC XY:
10482
AN XY:
74414
show subpopulations
Gnomad4 AFR
AF:
0.0959
Gnomad4 AMR
AF:
0.112
Gnomad4 ASJ
AF:
0.233
Gnomad4 EAS
AF:
0.136
Gnomad4 SAS
AF:
0.222
Gnomad4 FIN
AF:
0.159
Gnomad4 NFE
AF:
0.163
Gnomad4 OTH
AF:
0.147
Alfa
AF:
0.162
Hom.:
1539
Bravo
AF:
0.133
Asia WGS
AF:
0.151
AC:
526
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 18, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.93
CADD
Benign
1.1
DANN
Benign
0.58

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: rs8177804; hg19: chr9-116153389; COSMIC: COSV52958257; COSMIC: COSV52958257; API