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chr12-29583398-T-C

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_001193451.2(TMTC1):​c.1418+9A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00167 in 1,612,742 control chromosomes in the GnomAD database, including 31 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0092 ( 18 hom., cov: 33)
Exomes 𝑓: 0.00089 ( 13 hom. )

Consequence

TMTC1
NM_001193451.2 intron

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.21
Variant links:
Genes affected
TMTC1 (HGNC:24099): (transmembrane O-mannosyltransferase targeting cadherins 1) Enables mannosyltransferase activity. Involved in protein O-linked mannosylation. Predicted to be located in endoplasmic reticulum. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 12-29583398-T-C is Benign according to our data. Variant chr12-29583398-T-C is described in ClinVar as [Benign]. Clinvar id is 785397.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00916 (1396/152370) while in subpopulation AFR AF= 0.0318 (1322/41576). AF 95% confidence interval is 0.0304. There are 18 homozygotes in gnomad4. There are 666 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 18 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMTC1NM_001193451.2 linkuse as main transcriptc.1418+9A>G intron_variant ENST00000539277.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMTC1ENST00000539277.6 linkuse as main transcriptc.1418+9A>G intron_variant 1 NM_001193451.2 Q8IUR5-5

Frequencies

GnomAD3 genomes
AF:
0.00903
AC:
1375
AN:
152252
Hom.:
18
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0314
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00366
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00430
GnomAD3 exomes
AF:
0.00240
AC:
599
AN:
249872
Hom.:
12
AF XY:
0.00171
AC XY:
231
AN XY:
135008
show subpopulations
Gnomad AFR exome
AF:
0.0325
Gnomad AMR exome
AF:
0.00166
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000986
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000354
Gnomad OTH exome
AF:
0.00115
GnomAD4 exome
AF:
0.000887
AC:
1296
AN:
1460372
Hom.:
13
Cov.:
30
AF XY:
0.000789
AC XY:
573
AN XY:
726444
show subpopulations
Gnomad4 AFR exome
AF:
0.0303
Gnomad4 AMR exome
AF:
0.00184
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000139
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000387
Gnomad4 OTH exome
AF:
0.00232
GnomAD4 genome
AF:
0.00916
AC:
1396
AN:
152370
Hom.:
18
Cov.:
33
AF XY:
0.00894
AC XY:
666
AN XY:
74528
show subpopulations
Gnomad4 AFR
AF:
0.0318
Gnomad4 AMR
AF:
0.00366
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00426
Alfa
AF:
0.00483
Hom.:
11
Bravo
AF:
0.0104
Asia WGS
AF:
0.00606
AC:
21
AN:
3478
EpiCase
AF:
0.0000547
EpiControl
AF:
0.0000593

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 testingInvitaeMay 14, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
0.067
DANN
Benign
0.73

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: rs112130088; hg19: chr12-29736331; API