chr12-27401258-G-A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_020183.6(BMAL2):​c.1162G>A​(p.Ala388Thr) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000124 in 1,613,172 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

BMAL2
NM_020183.6 missense, splice_region

Scores

8
10
Splicing: ADA: 0.001685
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.45

Publications

2 publications found
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-AS1 (HGNC:49892): (BMAL2 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4
Computational evidence support a benign effect (MetaRNN=0.12547562).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020183.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BMAL2
NM_020183.6
MANE Select
c.1162G>Ap.Ala388Thr
missense splice_region
Exon 11 of 17NP_064568.3
BMAL2
NM_001394524.1
c.1195G>Ap.Ala399Thr
missense splice_region
Exon 11 of 17NP_001381453.1
BMAL2
NM_001394525.1
c.1153G>Ap.Ala385Thr
missense splice_region
Exon 10 of 16NP_001381454.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BMAL2
ENST00000266503.10
TSL:1 MANE Select
c.1162G>Ap.Ala388Thr
missense splice_region
Exon 11 of 17ENSP00000266503.5Q8WYA1-1
BMAL2
ENST00000311001.9
TSL:1
c.1120G>Ap.Ala374Thr
missense splice_region
Exon 10 of 16ENSP00000312247.5Q8WYA1-2
BMAL2
ENST00000395901.6
TSL:1
c.1051G>Ap.Ala351Thr
missense splice_region
Exon 9 of 15ENSP00000379238.2Q8WYA1-3

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152128
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000518
AC:
13
AN:
250990
AF XY:
0.0000663
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1460926
Hom.:
0
Cov.:
30
AF XY:
0.0000165
AC XY:
12
AN XY:
726832
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33470
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26122
East Asian (EAS)
AF:
0.000428
AC:
17
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53320
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111228
Other (OTH)
AF:
0.00
AC:
0
AN:
60364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152246
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74434
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41544
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000386
AC:
2
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10590
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000494
AC:
6
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.040
T
Eigen
Benign
0.12
Eigen_PC
Benign
0.082
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.89
D
M_CAP
Benign
0.0051
T
MetaRNN
Benign
0.13
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.7
M
PhyloP100
6.5
PrimateAI
Uncertain
0.59
T
PROVEAN
Uncertain
-3.9
D
REVEL
Benign
0.16
Sift
Uncertain
0.012
D
Sift4G
Uncertain
0.027
D
Polyphen
0.36
B
Vest4
0.47
MutPred
0.64
Gain of catalytic residue at A388 (P = 3e-04)
MVP
0.30
MPC
0.29
ClinPred
0.45
T
GERP RS
2.2
Varity_R
0.22
gMVP
0.48
Mutation Taster
=50/50

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0017
dbscSNV1_RF
Benign
0.056
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs532927468; hg19: chr12-27554191; API