chr1-150858359-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_001668.4(ARNT):​c.127C>T​(p.Arg43Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000413 in 1,453,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

ARNT
NM_001668.4 missense

Scores

7
7
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.73
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.38107985).
BS2
High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ARNTNM_001668.4 linkuse as main transcriptc.127C>T p.Arg43Trp missense_variant 2/22 ENST00000358595.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ARNTENST00000358595.10 linkuse as main transcriptc.127C>T p.Arg43Trp missense_variant 2/221 NM_001668.4 P3P27540-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000832
AC:
2
AN:
240354
Hom.:
0
AF XY:
0.00000773
AC XY:
1
AN XY:
129414
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:
0.0000185
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000413
AC:
6
AN:
1453786
Hom.:
0
Cov.:
30
AF XY:
0.00000554
AC XY:
4
AN XY:
722340
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:
9.03e-7
Gnomad4 OTH exome
AF:
0.0000333
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 20, 2023The c.127C>T (p.R43W) alteration is located in exon 2 (coding exon 2) of the ARNT gene. This alteration results from a C to T substitution at nucleotide position 127, causing the arginine (R) at amino acid position 43 to be replaced by a tryptophan (W). 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
Pathogenic
0.67
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.040
CADD
Pathogenic
28
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.56
D;.;.;.
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Pathogenic
0.99
D;D;D;D
M_CAP
Benign
0.042
D
MetaRNN
Benign
0.38
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Pathogenic
3.0
M;M;.;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.79
T
PROVEAN
Uncertain
-3.7
D;D;D;D
REVEL
Benign
0.26
Sift
Pathogenic
0.0
D;D;D;D
Sift4G
Pathogenic
0.0010
D;D;D;D
Polyphen
1.0
D;.;D;D
Vest4
0.81
MutPred
0.36
Loss of disorder (P = 0.0017);Loss of disorder (P = 0.0017);.;Loss of disorder (P = 0.0017);
MVP
0.64
MPC
0.93
ClinPred
0.99
D
GERP RS
5.0
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.0
Varity_R
0.28
gMVP
0.47

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: rs1386729618; hg19: chr1-150830835; API