Genetic Variant ALOX5AP:p.Ala44Ala (chr13-30735566-T-C) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_001204406.2(ALOX5AP):c.132T>C(p.Ala44Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000824 in 1,613,206 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0040 ( 7 hom., cov: 32)

Exomes 𝑓: 0.00049 ( 8 hom. )

Consequence

ALOX5AP
NM_001204406.2 synonymous

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.100

Variant links:

Genes affected

ALOX5AP (HGNC:436): (arachidonate 5-lipoxygenase activating protein) This gene encodes a protein which, with 5-lipoxygenase, is required for leukotriene synthesis. Leukotrienes are arachidonic acid metabolites which have been implicated in various types of inflammatory responses, including asthma, arthritis and psoriasis. This protein localizes to the plasma membrane. Inhibitors of its function impede translocation of 5-lipoxygenase from the cytoplasm to the cell membrane and inhibit 5-lipoxygenase activation. Alternatively spliced transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Feb 2011]

ALOX5AP links:

LOC124903146 (HGNC:):

LOC124903146 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

BP6

Variant 13-30735566-T-C is Benign according to our data. Variant chr13-30735566-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 3041867.Status of the report is no_assertion_criteria_provided, 0 stars.

BP7

Synonymous conserved (PhyloP=-0.1 with no splicing effect.

BS2

High Homozygotes in GnomAd4 at 7 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ALOX5AP	NM_001629.4 link	c.-40T>C		5_prime_UTR_variant	Exon 1 of 5	ENST00000380490.5	NP_001620.2	P20292
ALOX5AP	NM_001204406.2 link	c.132T>C	p.Ala44Ala	synonymous_variant	Exon 2 of 6		NP_001191335.1	P20292A0A087WW23
LOC124903146	XR_007063743.1 link	n.221-2829A>G		intron_variant	Intron 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ALOX5AP	ENST00000617770.4 link	c.132T>C	p.Ala44Ala	synonymous_variant	Exon 2 of 6	1		ENSP00000479870.1		A0A087WW23
ALOX5AP	ENST00000380490 link	c.-40T>C		5_prime_UTR_variant	Exon 1 of 5	1	NM_001629.4	ENSP00000369858.3		P20292

Frequencies

GnomAD3 genomes

AF:

0.00394

AC:

599

AN:

152030

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0137

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00144

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00145

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00144

GnomAD3 exomes

AF:

0.00107

AC:

268

AN:

249872

Hom.:

AF XY:

0.000800

AC XY:

108

AN XY:

135028

show subpopulations

Gnomad AFR exome

AF:

0.0118

Gnomad AMR exome

AF:

0.000610

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00168

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000354

Gnomad OTH exome

AF:

0.000492

GnomAD4 exome

AF:

0.000495

AC:

723

AN:

1461060

Hom.:

Cov.:

AF XY:

0.000465

AC XY:

338

AN XY:

726690

show subpopulations

Gnomad4 AFR exome

AF:

0.0142

Gnomad4 AMR exome

AF:

0.000717

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00131

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000135

Gnomad4 OTH exome

AF:

0.00134

GnomAD4 genome

AF:

0.00398

AC:

606

AN:

152146

Hom.:

Cov.:

AF XY:

0.00394

AC XY:

293

AN XY:

74374

show subpopulations

Gnomad4 AFR

AF:

0.0139

Gnomad4 AMR

AF:

0.00144

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.000364

Hom.:

Bravo

AF:

0.00440

Asia WGS

AF:

0.00346

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

ALOX5AP-related disorder

Benign:1

Dec 04, 2023

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.82

CADD

Benign

5.8

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over