4-139044978-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_012118.4(NOCT):ā€‹c.800T>Cā€‹(p.Ile267Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000328 in 1,614,088 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.000035 ( 0 hom. )

Consequence

NOCT
NM_012118.4 missense

Scores

4
11
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.99
Variant links:
Genes affected
NOCT (HGNC:14254): (nocturnin) The protein encoded by this gene is highly similar to Nocturnin, a gene identified as a circadian clock regulated gene in Xenopus laevis. This protein and Nocturnin protein share similarity with the C-terminal domain of a yeast transcription factor, carbon catabolite repression 4 (CCR4). The mRNA abundance of a similar gene in mouse has been shown to exhibit circadian rhythmicity, which suggests a role for this protein in clock function or as a circadian clock effector. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.839

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NOCTNM_012118.4 linkuse as main transcriptc.800T>C p.Ile267Thr missense_variant 3/3 ENST00000280614.4 NP_036250.2 Q9UK39

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NOCTENST00000280614.4 linkuse as main transcriptc.800T>C p.Ile267Thr missense_variant 3/31 NM_012118.4 ENSP00000280614.2 Q9UK39
NOCTENST00000515616.1 linkuse as main transcriptn.612T>C non_coding_transcript_exon_variant 2/21
ELF2ENST00000515489.1 linkuse as main transcriptn.272+15346A>G intron_variant 2
NOCTENST00000630479.1 linkuse as main transcriptn.*505-584T>C intron_variant 5 ENSP00000486546.1 Q8WTX0

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152202
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251304
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135814
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000349
AC:
51
AN:
1461886
Hom.:
0
Cov.:
33
AF XY:
0.0000399
AC XY:
29
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000360
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000474
Hom.:
0
Bravo
AF:
0.0000151
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 14, 2024The c.800T>C (p.I267T) alteration is located in exon 3 (coding exon 3) of the NOCT gene. This alteration results from a T to C substitution at nucleotide position 800, causing the isoleucine (I) at amino acid position 267 to be replaced by a threonine (T). 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
Pathogenic
0.89
BayesDel_addAF
Benign
-0.071
T
BayesDel_noAF
Benign
-0.23
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.44
T
Eigen
Uncertain
0.65
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Uncertain
0.12
D
MetaRNN
Pathogenic
0.84
D
MetaSVM
Benign
-0.84
T
MutationAssessor
Uncertain
2.6
M
PrimateAI
Uncertain
0.58
T
PROVEAN
Uncertain
-4.1
D
REVEL
Uncertain
0.31
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.016
D
Polyphen
0.99
D
Vest4
0.78
MutPred
0.67
Loss of stability (P = 0.0215);
MVP
0.14
MPC
1.1
ClinPred
0.92
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.78
gMVP
0.82

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: rs766293473; hg19: chr4-139966132; API