rs761546961

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_000032.5(ALAS2):​c.1563C>T​(p.Ser521Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000209 in 1,097,899 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 5 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.000021 ( 0 hom. 5 hem. )

Consequence

ALAS2
NM_000032.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.191
Variant links:
Genes affected
ALAS2 (HGNC:397): (5'-aminolevulinate synthase 2) The product of this gene specifies an erythroid-specific mitochondrially located enzyme. The encoded protein catalyzes the first step in the heme biosynthetic pathway. Defects in this gene cause X-linked pyridoxine-responsive sideroblastic anemia. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP6
Variant X-55013523-G-A is Benign according to our data. Variant chrX-55013523-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 254728.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.191 with no splicing effect.
BS2
High Hemizygotes in GnomAdExome4 at 5 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALAS2NM_000032.5 linkuse as main transcriptc.1563C>T p.Ser521Ser synonymous_variant 10/11 ENST00000650242.1 NP_000023.2 P22557-1
ALAS2NM_001037968.4 linkuse as main transcriptc.1524C>T p.Ser508Ser synonymous_variant 10/11 NP_001033057.1 P22557-4
ALAS2NM_001037967.4 linkuse as main transcriptc.1452C>T p.Ser484Ser synonymous_variant 9/10 NP_001033056.1 P22557-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALAS2ENST00000650242.1 linkuse as main transcriptc.1563C>T p.Ser521Ser synonymous_variant 10/11 NM_000032.5 ENSP00000497236.1 P22557-1
ALAS2ENST00000396198.7 linkuse as main transcriptc.1524C>T p.Ser508Ser synonymous_variant 10/115 ENSP00000379501.3 P22557-4
ALAS2ENST00000335854.8 linkuse as main transcriptc.1452C>T p.Ser484Ser synonymous_variant 9/102 ENSP00000337131.4 P22557-2
ALAS2ENST00000498636.1 linkuse as main transcriptc.726+1224C>T intron_variant 3 ENSP00000495662.1 A0A2R8Y6N3

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.0000274
AC:
5
AN:
182639
Hom.:
0
AF XY:
0.0000149
AC XY:
1
AN XY:
67187
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000615
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000209
AC:
23
AN:
1097899
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
5
AN XY:
363263
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:
0.0000202
Gnomad4 OTH exome
AF:
0.000130
GnomAD4 genome
Cov.:
23
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

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

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpApr 28, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
6.8
DANN
Benign
0.76
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs761546961; hg19: chrX-55039956; API