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chr3-100576990-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_018004.3(TMEM45A):​c.800G>A​(p.Arg267Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000552 in 1,613,402 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00028 ( 1 hom., cov: 32)
Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

TMEM45A
NM_018004.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.50
Variant links:
Genes affected
TMEM45A (HGNC:25480): (transmembrane protein 45A) 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 -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0110434).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM45ANM_018004.3 linkuse as main transcriptc.800G>A p.Arg267Gln missense_variant 6/6 ENST00000323523.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM45AENST00000323523.8 linkuse as main transcriptc.800G>A p.Arg267Gln missense_variant 6/61 NM_018004.3 P1
TMEM45AENST00000489060.1 linkuse as main transcriptn.4161G>A non_coding_transcript_exon_variant 3/31
TMEM45AENST00000403410.5 linkuse as main transcriptc.848G>A p.Arg283Gln missense_variant 8/85
TMEM45AENST00000488904.1 linkuse as main transcriptn.356G>A non_coding_transcript_exon_variant 2/23

Frequencies

GnomAD3 genomes
AF:
0.000263
AC:
40
AN:
152160
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000941
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:
0.0000638
AC:
16
AN:
250592
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135450
show subpopulations
Gnomad AFR exome
AF:
0.000923
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:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000315
AC:
46
AN:
1461124
Hom.:
0
Cov.:
31
AF XY:
0.0000316
AC XY:
23
AN XY:
726916
show subpopulations
Gnomad4 AFR exome
AF:
0.000926
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00000360
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.000282
AC:
43
AN:
152278
Hom.:
1
Cov.:
32
AF XY:
0.000228
AC XY:
17
AN XY:
74460
show subpopulations
Gnomad4 AFR
AF:
0.00101
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:
0.000117
Hom.:
1
Bravo
AF:
0.000306
ESP6500AA
AF:
0.00136
AC:
6
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000123
AC:
15
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 GeneticsJul 21, 2021The c.800G>A (p.R267Q) alteration is located in exon 6 (coding exon 5) of the TMEM45A gene. This alteration results from a G to A substitution at nucleotide position 800, causing the arginine (R) at amino acid position 267 to be replaced by a glutamine (Q). 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
0.089
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
18
DANN
Benign
0.73
DEOGEN2
Benign
0.019
T;.
Eigen
Benign
-0.27
Eigen_PC
Benign
-0.19
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Benign
0.78
T;T
M_CAP
Benign
0.0097
T
MetaRNN
Benign
0.011
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.1
M;.
MutationTaster
Benign
0.97
D;D
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.43
N;N
REVEL
Benign
0.067
Sift
Benign
0.44
T;T
Sift4G
Benign
0.49
T;T
Polyphen
0.77
P;.
Vest4
0.090
MVP
0.12
MPC
0.29
ClinPred
0.049
T
GERP RS
3.5
Varity_R
0.023
gMVP
0.26

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: rs201066091; hg19: chr3-100295834; COSMIC: COSV100058645; API