rs764859178

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001668.4(ARNT):c.1459A>G(p.Thr487Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,770 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ARNT
NM_001668.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.471

Publications

3 publications found

Variant links:

Genes affected

ARNT (HGNC:700): (aryl hydrocarbon receptor nuclear translocator) This gene encodes a protein containing a basic helix-loop-helix domain and two characteristic PAS domains along with a PAC domain. The encoded protein binds to ligand-bound aryl hydrocarbon receptor and aids in the movement of this complex to the nucleus, where it promotes the expression of genes involved in xenobiotic metabolism. This protein is also a co-factor for transcriptional regulation by hypoxia-inducible factor 1. Chromosomal translocation of this locus with the ETV6 (ets variant 6) gene on chromosome 12 have been described in leukemias. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2013]

ARNT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.053989947).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ARNT	NM_001668.4 link	c.1459A>G	p.Thr487Ala	missense_variant	Exon 15 of 22	ENST00000358595.10	NP_001659.1	P27540-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ARNT	ENST00000358595.10 link	c.1459A>G	p.Thr487Ala	missense_variant	Exon 15 of 22	1	NM_001668.4	ENSP00000351407.5	P27540-1
ARNT	ENST00000471844.6 link	n.*56A>G		non_coding_transcript_exon_variant	Exon 14 of 17	2		ENSP00000425899.1	A6NGV6
ARNT	ENST00000471844.6 link	n.*56A>G		3_prime_UTR_variant	Exon 14 of 17	2		ENSP00000425899.1	A6NGV6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000796

AC:

AN:

251132

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461770

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727148

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86180

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111980

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 29, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1459A>G (p.T487A) alteration is located in exon 15 (coding exon 15) of the ARNT gene. This alteration results from a A to G substitution at nucleotide position 1459, causing the threonine (T) at amino acid position 487 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.054

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.73

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.076

T;.;.;.

Eigen

Benign

-0.77

Eigen_PC

Benign

-0.58

FATHMM_MKL

Benign

0.75

LIST_S2

Benign

0.66

T;T;T;T

M_CAP

Benign

0.0057

MetaRNN

Benign

0.054

T;T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

0.55

N;N;.;.

PhyloP100

0.47

PrimateAI

Benign

0.32

PROVEAN

Benign

-0.29

N;N;N;N

REVEL

Benign

0.037

Sift

Benign

0.16

T;T;T;T

Sift4G

Benign

0.79

T;T;T;T

Polyphen

0.0

B;.;B;B

Vest4

0.17

MutPred

0.12

Loss of glycosylation at T487 (P = 0.0273);Loss of glycosylation at T487 (P = 0.0273);.;.;

MVP

0.25

MPC

0.29

ClinPred

0.022

GERP RS

0.57

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.024

gMVP

0.17

Mutation Taster

=95/5

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over