12-27403514-T-C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020183.6(BMAL2):​c.1559T>C​(p.Ile520Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000505 in 1,604,470 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000052 ( 0 hom. )

Consequence

BMAL2
NM_020183.6 missense

Scores

7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.59

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: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.19384041).

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.1559T>Cp.Ile520Thr
missense
Exon 14 of 17NP_064568.3
BMAL2
NM_001394524.1
c.1592T>Cp.Ile531Thr
missense
Exon 14 of 17NP_001381453.1
BMAL2
NM_001394525.1
c.1550T>Cp.Ile517Thr
missense
Exon 13 of 16NP_001381454.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BMAL2
ENST00000266503.10
TSL:1 MANE Select
c.1559T>Cp.Ile520Thr
missense
Exon 14 of 17ENSP00000266503.5Q8WYA1-1
BMAL2
ENST00000311001.9
TSL:1
c.1517T>Cp.Ile506Thr
missense
Exon 13 of 16ENSP00000312247.5Q8WYA1-2
BMAL2
ENST00000395901.6
TSL:1
c.1448T>Cp.Ile483Thr
missense
Exon 12 of 15ENSP00000379238.2Q8WYA1-3

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000284
AC:
7
AN:
246586
AF XY:
0.0000300
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000622
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000516
AC:
75
AN:
1452268
Hom.:
0
Cov.:
28
AF XY:
0.0000498
AC XY:
36
AN XY:
722584
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33188
American (AMR)
AF:
0.00
AC:
0
AN:
43458
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25948
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39534
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84706
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53292
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5748
European-Non Finnish (NFE)
AF:
0.0000651
AC:
72
AN:
1106344
Other (OTH)
AF:
0.0000500
AC:
3
AN:
60050
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
4
7
11
14
18
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000394
AC:
6
AN:
152202
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74368
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000329
Hom.:
0
Bravo
AF:
0.0000453
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000412
AC:
5

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
0.18
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.071
T
Eigen
Benign
0.060
Eigen_PC
Benign
-0.0019
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.87
D
M_CAP
Benign
0.0059
T
MetaRNN
Benign
0.19
T
MetaSVM
Benign
-0.89
T
MutationAssessor
Uncertain
2.2
M
PhyloP100
2.6
PrimateAI
Benign
0.45
T
PROVEAN
Uncertain
-3.9
D
REVEL
Benign
0.11
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0030
D
Polyphen
0.96
D
Vest4
0.37
MVP
0.59
MPC
0.14
ClinPred
0.39
T
GERP RS
0.21
Varity_R
0.35
gMVP
0.72
Mutation Taster
=46/54
disease causing

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

Other links and lift over

dbSNP: rs150931145; hg19: chr12-27556447; API