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GeneBe

11-92969757-G-A

Variant summary

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

The NM_005959.5(MTNR1B):c.32G>A(p.Cys11Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000531 in 1,505,688 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000044 ( 0 hom. )

Consequence

MTNR1B
NM_005959.5 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.98
Variant links:
Genes affected
MTNR1B (HGNC:7464): (melatonin receptor 1B) This gene encodes one of two high affinity forms of a receptor for melatonin, the primary hormone secreted by the pineal gland. This gene product is an integral membrane protein that is a G-protein coupled, 7-transmembrane receptor. It is found primarily in the retina and brain although this detection requires RT-PCR. It is thought to participate in light-dependent functions in the retina and may be involved in the neurobiological effects of melatonin. [provided by RefSeq, Jul 2008]

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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=0.19836164).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MTNR1BNM_005959.5 linkuse as main transcriptc.32G>A p.Cys11Tyr missense_variant 1/2 ENST00000257068.3
MTNR1BXM_011542839.3 linkuse as main transcriptc.32G>A p.Cys11Tyr missense_variant 1/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MTNR1BENST00000257068.3 linkuse as main transcriptc.32G>A p.Cys11Tyr missense_variant 1/21 NM_005959.5 P1
MTNR1BENST00000532482.1 linkuse as main transcriptc.32G>A p.Cys11Tyr missense_variant, NMD_transcript_variant 1/35
MTNR1BENST00000528076.1 linkuse as main transcript upstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152158
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000180
AC:
3
AN:
166892
Hom.:
0
AF XY:
0.0000322
AC XY:
3
AN XY:
93282
show subpopulations
Gnomad AFR exome
AF:
0.000341
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000443
AC:
6
AN:
1353530
Hom.:
0
Cov.:
31
AF XY:
0.00000899
AC XY:
6
AN XY:
667200
show subpopulations
Gnomad4 AFR exome
AF:
0.000173
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:
9.46e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152158
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000171
AC:
2

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 GeneticsNov 17, 2022The c.32G>A (p.C11Y) alteration is located in exon 1 (coding exon 1) of the MTNR1B gene. This alteration results from a G to A substitution at nucleotide position 32, causing the cysteine (C) at amino acid position 11 to be replaced by a tyrosine (Y). 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
0.24
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.24
Cadd
Benign
20
Dann
Uncertain
0.98
DEOGEN2
Benign
0.14
T
Eigen
Benign
-0.23
Eigen_PC
Benign
-0.18
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.61
T
M_CAP
Benign
0.070
D
MetaRNN
Benign
0.20
T
MetaSVM
Benign
-0.64
T
MutationAssessor
Uncertain
2.4
M
MutationTaster
Benign
0.95
D
PrimateAI
Pathogenic
0.84
D
PROVEAN
Uncertain
-2.8
D
REVEL
Benign
0.13
Sift
Uncertain
0.011
D
Sift4G
Uncertain
0.026
D
Polyphen
0.41
B
Vest4
0.48
MutPred
0.26
Loss of disorder (P = 0.0351);
MVP
0.74
MPC
0.70
ClinPred
0.72
D
GERP RS
4.3
Varity_R
0.33
gMVP
0.85

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: rs751521431; hg19: chr11-92702923; API