12-27368390-G-A

Position:

chr12-27368390-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_020183.6(BMAL2):c.160G>A(p.Gly54Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000173 in 1,613,956 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

BMAL2
NM_020183.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.69

Variant links:

Genes affected

BMAL2 (HGNC:18984): (basic helix-loop-helix ARNT like 2) This gene encodes a basic helix-loop-helix transcription factor belonging to the PAS (PER, ARNT, SIM) superfamily. The PAS proteins play important roles in adaptation to low atmospheric and cellular oxygen levels, exposure to certain environmental pollutants, and diurnal oscillations in light and temperature. This protein forms a transcriptionally active heterodimer with the circadian CLOCK protein, the structurally related MOP4, and hypoxia-inducible factors, such as HIF1alpha. Consistent with its role as a biologically relevant partner of circadian and hypoxia factors, this protein is coexpressed in regions of the brain such as the thalamus, hypothalamus, and amygdala. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Oct 2011]

BMAL2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.045532227).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BMAL2	NM_020183.6 linkuse as main transcript	c.160G>A	p.Gly54Arg	missense_variant	2/17	ENST00000266503.10	NP_064568.3	Q8WYA1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BMAL2	ENST00000266503.10 linkuse as main transcript	c.160G>A	p.Gly54Arg	missense_variant	2/17	1	NM_020183.6	ENSP00000266503.5		Q8WYA1-1
BMAL2	ENST00000457040.6 linkuse as main transcript	c.94G>A	p.Gly32Arg	missense_variant	1/15	1		ENSP00000400185.2		H0Y5R1

Frequencies

GnomAD3 genomes

AF:

0.0000921

AC:

AN:

152090

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000191

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000795

AC:

AN:

251428

Hom.:

AF XY:

0.0000957

AC XY:

AN XY:

135882

show subpopulations

Gnomad AFR exome

AF:

0.0000615

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:

0.000149

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000181

AC:

265

AN:

1461866

Hom.:

Cov.:

AF XY:

0.000160

AC XY:

116

AN XY:

727238

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.0000187

Gnomad4 NFE exome

AF:

0.000235

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000921

AC:

AN:

152090

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74292

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000191

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000902

Hom.:

Bravo

AF:

0.0000718

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.0000988

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000415

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 submitter

clinical testing

Ambry Genetics

Apr 07, 2023

The c.160G>A (p.G54R) alteration is located in exon 2 (coding exon 2) of the ARNTL2 gene. This alteration results from a G to A substitution at nucleotide position 160, causing the glycine (G) at amino acid position 54 to be replaced by an arginine (R). 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

0.28

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.48

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.0085

.;.;.;.;.;T;.

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.49

FATHMM_MKL

Benign

0.52

LIST_S2

Benign

0.86

D;T;T;D;T;T;D

M_CAP

Benign

0.0025

MetaRNN

Benign

0.046

T;T;T;T;T;T;T

MetaSVM

Benign

-0.95

MutationAssessor

Benign

0.95

L;.;.;L;L;L;.

PrimateAI

Benign

0.31

PROVEAN

Benign

-1.7

N;N;N;N;N;N;N

REVEL

Benign

0.057

Sift

Benign

0.052

T;T;T;T;T;T;T

Sift4G

Benign

0.57

T;T;T;T;T;T;T

Polyphen

0.010

B;B;.;B;B;B;.

Vest4

0.16

MutPred

0.32

Gain of catalytic residue at P59 (P = 0.0059);.;.;Gain of catalytic residue at P59 (P = 0.0059);Gain of catalytic residue at P59 (P = 0.0059);Gain of catalytic residue at P59 (P = 0.0059);.;

MVP

0.19

MPC

0.14

ClinPred

0.061

GERP RS

1.5

Varity_R

0.047

gMVP

0.23

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