chr11-13385720-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001297719.2(BMAL1):​c.1649C>T​(p.Ser550Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,262 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: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

BMAL1
NM_001297719.2 missense

Scores

1
5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.19
Variant links:
Genes affected
BMAL1 (HGNC:701): (basic helix-loop-helix ARNT like 1) The protein encoded by this gene is a basic helix-loop-helix protein that forms a heterodimer with CLOCK. This heterodimer binds E-box enhancer elements upstream of Period (PER1, PER2, PER3) and Cryptochrome (CRY1, CRY2) genes and activates transcription of these genes. PER and CRY proteins heterodimerize and repress their own transcription by interacting in a feedback loop with CLOCK/ARNTL complexes. Defects in this gene have been linked to infertility, problems with gluconeogenesis and lipogenesis, and altered sleep patterns. The protein regulates interferon-stimulated gene expression and is an important factor in viral infection, including COVID-19. [provided by RefSeq, Oct 2021]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18600458).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BMAL1NM_001297719.2 linkuse as main transcriptc.1649C>T p.Ser550Phe missense_variant 19/20 ENST00000403290.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BMAL1ENST00000403290.6 linkuse as main transcriptc.1649C>T p.Ser550Phe missense_variant 19/201 NM_001297719.2 P4O00327-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251238
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135784
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461262
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
726980
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

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 GeneticsApr 20, 2024The c.1646C>T (p.S549F) alteration is located in exon 19 (coding exon 15) of the ARNTL gene. This alteration results from a C to T substitution at nucleotide position 1646, causing the serine (S) at amino acid position 549 to be replaced by a phenylalanine (F). 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
0.10
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.37
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.22
.;.;T;.;.
Eigen
Benign
0.10
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Pathogenic
0.98
D;D;D;D;D
M_CAP
Benign
0.0052
T
MetaRNN
Benign
0.19
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.8
.;.;L;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;N
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-1.9
N;N;N;N;N
REVEL
Benign
0.11
Sift
Benign
0.060
T;T;T;D;D
Sift4G
Uncertain
0.020
D;D;D;D;D
Polyphen
0.018
B;B;B;.;B
Vest4
0.35
MutPred
0.27
.;.;Loss of phosphorylation at S550 (P = 0.0296);.;.;
MVP
0.37
MPC
0.91
ClinPred
0.44
T
GERP RS
5.2
Varity_R
0.19
gMVP
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1381202191; hg19: chr11-13407267; API