17-7855617-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_203411.2(TMEM88):​c.383G>A​(p.Arg128Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000236 in 1,609,074 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

TMEM88
NM_203411.2 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.56
Variant links:
Genes affected
TMEM88 (HGNC:32371): (transmembrane protein 88) Predicted to enable PDZ domain binding activity. Involved in negative regulation of canonical Wnt signaling pathway; protein localization to plasma membrane; and protein stabilization. Located in cytosol and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.15074807).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM88NM_203411.2 linkuse as main transcriptc.383G>A p.Arg128Gln missense_variant 2/2 ENST00000301599.7 NP_981956.1 Q6PEY1
TMEM88XM_005256856.4 linkuse as main transcriptc.425G>A p.Arg142Gln missense_variant 2/2 XP_005256913.1
TMEM88NM_001319941.1 linkuse as main transcriptc.211-154G>A intron_variant NP_001306870.1 I3L2J3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM88ENST00000301599.7 linkuse as main transcriptc.383G>A p.Arg128Gln missense_variant 2/21 NM_203411.2 ENSP00000301599.6 Q6PEY1
TMEM88ENST00000574668.1 linkuse as main transcriptc.211-154G>A intron_variant 2 ENSP00000459725.1 I3L2J3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152200
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000167
AC:
4
AN:
238884
Hom.:
0
AF XY:
0.0000153
AC XY:
2
AN XY:
131002
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:
0.0000374
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000240
AC:
35
AN:
1456874
Hom.:
0
Cov.:
32
AF XY:
0.0000248
AC XY:
18
AN XY:
725058
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000306
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74338
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000284
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.00000830
AC:
1

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 GeneticsMay 03, 2023The c.383G>A (p.R128Q) alteration is located in exon 2 (coding exon 2) of the TMEM88 gene. This alteration results from a G to A substitution at nucleotide position 383, causing the arginine (R) at amino acid position 128 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
0.17
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.31
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.019
T
Eigen
Benign
-0.12
Eigen_PC
Benign
0.0062
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Benign
0.77
T
M_CAP
Benign
0.054
D
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-0.69
T
MutationAssessor
Benign
1.3
L
PrimateAI
Uncertain
0.78
T
PROVEAN
Benign
-2.0
N
REVEL
Benign
0.11
Sift
Benign
0.056
T
Sift4G
Benign
0.10
T
Polyphen
0.013
B
Vest4
0.20
MVP
0.65
MPC
1.9
ClinPred
0.43
T
GERP RS
3.9
Varity_R
0.14
gMVP
0.92

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs777709892; hg19: chr17-7758935; API