chr8-108784861-C-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_153015.3(TMEM74):​c.238G>T​(p.Ala80Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,614,054 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

TMEM74
NM_153015.3 missense

Scores

19

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.303
Variant links:
Genes affected
TMEM74 (HGNC:26409): (transmembrane protein 74) Involved in macroautophagy. Predicted to be located in autophagosome membrane; cytoplasmic vesicle; and lysosomal membrane. 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 Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.038417786).
BP6
Variant 8-108784861-C-A is Benign according to our data. Variant chr8-108784861-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 2526133.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM74NM_153015.3 linkuse as main transcriptc.238G>T p.Ala80Ser missense_variant 2/2 ENST00000297459.4 NP_694560.1 Q96NL1A0A024R9D4
TMEM74NR_136411.2 linkuse as main transcriptn.119+2615G>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM74ENST00000297459.4 linkuse as main transcriptc.238G>T p.Ala80Ser missense_variant 2/21 NM_153015.3 ENSP00000297459.3 Q96NL1
TMEM74ENST00000518838.1 linkuse as main transcriptn.119+2615G>T intron_variant 1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251482
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135914
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000192
AC:
28
AN:
1461892
Hom.:
0
Cov.:
31
AF XY:
0.0000220
AC XY:
16
AN XY:
727246
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:
0.0000252
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152162
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74338
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsMar 17, 2023This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.063
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.79
CADD
Benign
0.032
DANN
Benign
0.23
DEOGEN2
Benign
0.0086
T
Eigen
Benign
-1.9
Eigen_PC
Benign
-1.8
FATHMM_MKL
Benign
0.011
N
LIST_S2
Benign
0.27
T
M_CAP
Benign
0.0026
T
MetaRNN
Benign
0.038
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-1.4
N
PrimateAI
Benign
0.22
T
PROVEAN
Benign
0.070
N
REVEL
Benign
0.049
Sift
Benign
0.45
T
Sift4G
Benign
0.45
T
Polyphen
0.0
B
Vest4
0.030
MutPred
0.11
Gain of glycosylation at A80 (P = 0.0449);
MVP
0.040
MPC
0.13
ClinPred
0.027
T
GERP RS
-4.1
Varity_R
0.050
gMVP
0.16

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
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: rs1211415430; hg19: chr8-109797090; API