chr11-132314588-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001352005.2(NTM):ā€‹c.819C>Gā€‹(p.Asn273Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,136 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

NTM
NM_001352005.2 missense

Scores

1
11
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.32
Variant links:
Genes affected
NTM (HGNC:17941): (neurotrimin) This gene encodes a member of the IgLON (LAMP, OBCAM, Ntm) family of immunoglobulin (Ig) domain-containing glycosylphosphatidylinositol (GPI)-anchored cell adhesion molecules. The encoded protein may promote neurite outgrowth and adhesion via a homophilic mechanism. This gene is closely linked to a related family member, opioid binding protein/cell adhesion molecule-like (OPCML), on chromosome 11. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2009]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NTMNM_001352005.2 linkuse as main transcriptc.819C>G p.Asn273Lys missense_variant 7/9 ENST00000683400.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NTMENST00000683400.1 linkuse as main transcriptc.819C>G p.Asn273Lys missense_variant 7/9 NM_001352005.2 A1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250604
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135408
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:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461136
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
726828
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000595

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 GeneticsMay 09, 2023The c.819C>G (p.N273K) alteration is located in exon 6 (coding exon 6) of the NTM gene. This alteration results from a C to G substitution at nucleotide position 819, causing the asparagine (N) at amino acid position 273 to be replaced by a lysine (K). 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
0.51
BayesDel_addAF
Benign
-0.025
T
BayesDel_noAF
Benign
-0.27
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.025
.;T;.;.;.;T
Eigen
Uncertain
0.26
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.92
D;D;D;D;D;D
M_CAP
Benign
0.034
D
MetaRNN
Uncertain
0.56
D;D;D;D;D;D
MetaSVM
Benign
-0.52
T
MutationAssessor
Benign
1.4
L;L;L;L;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Uncertain
-3.5
D;D;D;D;.;.
REVEL
Uncertain
0.32
Sift
Uncertain
0.0040
D;D;D;D;.;.
Sift4G
Uncertain
0.025
D;D;D;D;D;D
Polyphen
0.83
P;D;P;P;.;.
Vest4
0.73
MutPred
0.62
Gain of methylation at N273 (P = 0.032);Gain of methylation at N273 (P = 0.032);Gain of methylation at N273 (P = 0.032);Gain of methylation at N273 (P = 0.032);.;.;
MVP
0.47
MPC
1.1
ClinPred
0.95
D
GERP RS
3.7
Varity_R
0.70
gMVP
0.61

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: rs775322072; hg19: chr11-132184482; API