7-30753915-C-T

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_006774.5(INMT):​c.339C>T​(p.Phe113Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00118 in 1,613,992 control chromosomes in the GnomAD database, including 23 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0059 ( 12 hom., cov: 32)
Exomes 𝑓: 0.00068 ( 11 hom. )

Consequence

INMT
NM_006774.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -3.28
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant 7-30753915-C-T is Benign according to our data. Variant chr7-30753915-C-T is described in ClinVar as [Benign]. Clinvar id is 722841.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-3.28 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00592 (901/152282) while in subpopulation AFR AF= 0.0203 (842/41534). AF 95% confidence interval is 0.0191. There are 12 homozygotes in gnomad4. There are 428 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 12 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
INMTNM_006774.5 linkuse as main transcriptc.339C>T p.Phe113Phe synonymous_variant 2/3 ENST00000013222.5 NP_006765.4 O95050-1
INMTNM_001199219.2 linkuse as main transcriptc.336C>T p.Phe112Phe synonymous_variant 2/3 NP_001186148.1 O95050-2
INMT-MINDY4NR_037598.1 linkuse as main transcriptn.352C>T non_coding_transcript_exon_variant 2/20

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
INMTENST00000013222.5 linkuse as main transcriptc.339C>T p.Phe113Phe synonymous_variant 2/31 NM_006774.5 ENSP00000013222.5 O95050-1
INMT-MINDY4ENST00000458257.5 linkuse as main transcriptn.336C>T non_coding_transcript_exon_variant 2/202 ENSP00000456039.1 F8WBC2

Frequencies

GnomAD3 genomes
AF:
0.00588
AC:
894
AN:
152164
Hom.:
12
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0202
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00216
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.00621
GnomAD3 exomes
AF:
0.00172
AC:
432
AN:
250874
Hom.:
5
AF XY:
0.00130
AC XY:
177
AN XY:
135662
show subpopulations
Gnomad AFR exome
AF:
0.0217
Gnomad AMR exome
AF:
0.00176
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000883
Gnomad OTH exome
AF:
0.000817
GnomAD4 exome
AF:
0.000684
AC:
1000
AN:
1461710
Hom.:
11
Cov.:
32
AF XY:
0.000612
AC XY:
445
AN XY:
727154
show subpopulations
Gnomad4 AFR exome
AF:
0.0216
Gnomad4 AMR exome
AF:
0.00179
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000647
Gnomad4 OTH exome
AF:
0.00174
GnomAD4 genome
AF:
0.00592
AC:
901
AN:
152282
Hom.:
12
Cov.:
32
AF XY:
0.00575
AC XY:
428
AN XY:
74452
show subpopulations
Gnomad4 AFR
AF:
0.0203
Gnomad4 AMR
AF:
0.00216
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.00614
Alfa
AF:
0.00304
Hom.:
2
Bravo
AF:
0.00654
Asia WGS
AF:
0.00202
AC:
7
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 20, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
CADD
Benign
6.2
DANN
Benign
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs116690173; hg19: chr7-30793531; COSMIC: COSV104532471; API