7-30752256-G-A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_006774.5(INMT):​c.106G>A​(p.Glu36Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000044 in 1,614,046 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 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: 0.000047 ( 1 hom. )

Consequence

INMT
NM_006774.5 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.497

Publications

1 publications found
Variant links:
Genes affected
INMT (HGNC:6069): (indolethylamine N-methyltransferase) N-methylation of endogenous and xenobiotic compounds is a major method by which they are degraded. This gene encodes an enzyme that N-methylates indoles such as tryptamine. Alternative splicing results in multiple transcript variants. Read-through transcription also exists between this gene and the downstream MINDY4 (aka FAM188B) gene. In rodents and other mammals such as cetartiodactyla this gene is in the opposite orientation compared to its orientation in human and other primates and this gene appears to have been lost in carnivora and chiroptera. [provided by RefSeq, Jul 2019]
INMT-MINDY4 (HGNC:41995): (INMT-MINDY4 readthrough (NMD candidate)) This locus represents rare but naturally occurring read-through transcription between the INMT (indolethylamine N-methyltransferase) and FAM188B (family with sequence similarity 188, member B) genes on chromosome 7. The read-through transcript is unlikely to produce a protein because it is a nonsense-mediated mRNA decay (NMD) candidate based on translation from the supported INMT start codon. [provided by RefSeq, Nov 2010]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.14226922).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
INMTNM_006774.5 linkc.106G>A p.Glu36Lys missense_variant Exon 1 of 3 ENST00000013222.5 NP_006765.4 O95050-1
INMTNM_001199219.2 linkc.106G>A p.Glu36Lys missense_variant Exon 1 of 3 NP_001186148.1 O95050-2
INMT-MINDY4NR_037598.1 linkn.122G>A non_coding_transcript_exon_variant Exon 1 of 20

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
INMTENST00000013222.5 linkc.106G>A p.Glu36Lys missense_variant Exon 1 of 3 1 NM_006774.5 ENSP00000013222.5 O95050-1
INMT-MINDY4ENST00000458257.5 linkn.106G>A non_coding_transcript_exon_variant Exon 1 of 20 2 ENSP00000456039.1 F8WBC2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152186
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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
GnomAD2 exomes
AF:
0.000107
AC:
27
AN:
251444
AF XY:
0.000110
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000463
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000472
AC:
69
AN:
1461860
Hom.:
1
Cov.:
33
AF XY:
0.0000550
AC XY:
40
AN XY:
727234
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33480
American (AMR)
AF:
0.000447
AC:
20
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.000348
AC:
30
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53412
Middle Eastern (MID)
AF:
0.000520
AC:
3
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000989
AC:
11
AN:
1111998
Other (OTH)
AF:
0.0000662
AC:
4
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152186
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74338
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41438
American (AMR)
AF:
0.0000654
AC:
1
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.0000529
ExAC
AF:
0.0000988
AC:
12

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Sep 27, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.106G>A (p.E36K) alteration is located in exon 1 (coding exon 1) of the INMT gene. This alteration results from a G to A substitution at nucleotide position 106, causing the glutamic acid (E) at amino acid position 36 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
Benign
0.095
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
12
DANN
Uncertain
0.98
DEOGEN2
Benign
0.015
T;.
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.67
FATHMM_MKL
Benign
0.0064
N
LIST_S2
Benign
0.51
T;T
M_CAP
Benign
0.0037
T
MetaRNN
Benign
0.14
T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Uncertain
2.1
M;M
PhyloP100
0.50
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-1.8
N;N
REVEL
Benign
0.12
Sift
Benign
0.073
T;T
Sift4G
Benign
0.46
T;T
Polyphen
0.98
D;.
Vest4
0.29
MutPred
0.61
Gain of ubiquitination at E36 (P = 0.0219);Gain of ubiquitination at E36 (P = 0.0219);
MVP
0.24
MPC
0.62
ClinPred
0.086
T
GERP RS
2.1
PromoterAI
-0.016
Neutral
Varity_R
0.25
gMVP
0.37
Mutation Taster
=91/9
polymorphism

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

Other links and lift over

dbSNP: rs777797023; hg19: chr7-30791872; COSMIC: COSV104532467; API