17-81956658-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_178493.6(NOTUM):​c.980C>T​(p.Thr327Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000276 in 1,610,240 control chromosomes in the GnomAD database, including 2 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00028 ( 2 hom. )

Consequence

NOTUM
NM_178493.6 missense

Scores

3
13
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.28
Variant links:
Genes affected
NOTUM (HGNC:27106): (notum, palmitoleoyl-protein carboxylesterase) Enables palmitoleyl hydrolase activity. Involved in negative regulation of Wnt signaling pathway and protein depalmitoleylation. Acts upstream of or within bone development and regulation of bone mineralization. Predicted to be located in endoplasmic reticulum lumen and extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High Homozygotes in GnomAdExome4 at 2 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NOTUMNM_178493.6 linkuse as main transcriptc.980C>T p.Thr327Ile missense_variant 8/11 ENST00000409678.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NOTUMENST00000409678.8 linkuse as main transcriptc.980C>T p.Thr327Ile missense_variant 8/111 NM_178493.6 P1
NOTUMENST00000477214.5 linkuse as main transcriptc.554C>T p.Thr185Ile missense_variant 7/85

Frequencies

GnomAD3 genomes
AF:
0.000223
AC:
34
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.000353
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000193
AC:
48
AN:
248576
Hom.:
0
AF XY:
0.000215
AC XY:
29
AN XY:
135068
show subpopulations
Gnomad AFR exome
AF:
0.0000626
Gnomad AMR exome
AF:
0.0000871
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000384
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000282
AC:
411
AN:
1458034
Hom.:
2
Cov.:
30
AF XY:
0.000284
AC XY:
206
AN XY:
725522
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000346
Gnomad4 OTH exome
AF:
0.000332
GnomAD4 genome
AF:
0.000223
AC:
34
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.000215
AC XY:
16
AN XY:
74368
show subpopulations
Gnomad4 AFR
AF:
0.0000965
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000353
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000223
Hom.:
0
Bravo
AF:
0.000166
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000214
AC:
26
EpiCase
AF:
0.000382
EpiControl
AF:
0.000474

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 21, 2022The c.980C>T (p.T327I) alteration is located in exon 8 (coding exon 8) of the NOTUM gene. This alteration results from a C to T substitution at nucleotide position 980, causing the threonine (T) at amino acid position 327 to be replaced by an isoleucine (I). 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
Uncertain
0.55
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.090
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.45
T;T
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.89
D;D
M_CAP
Uncertain
0.13
D
MetaRNN
Uncertain
0.47
T;T
MetaSVM
Uncertain
0.12
D
MutationAssessor
Pathogenic
3.3
M;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.60
T
PROVEAN
Pathogenic
-4.8
D;.
REVEL
Uncertain
0.39
Sift
Uncertain
0.0070
D;.
Sift4G
Uncertain
0.022
D;.
Polyphen
0.99
D;.
Vest4
0.78
MVP
0.31
MPC
1.4
ClinPred
0.85
D
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.79
gMVP
0.79

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: rs369826654; hg19: chr17-79914534; API