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GeneBe

chr20-32145169-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_014742.4(TM9SF4):​c.731A>T​(p.Lys244Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000124 in 1,614,040 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

TM9SF4
NM_014742.4 missense

Scores

3
6
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.54
Variant links:
Genes affected
TM9SF4 (HGNC:30797): (transmembrane 9 superfamily member 4) Involved in several processes, including positive regulation of protein localization; regulation of intracellular pH; and vacuolar proton-transporting V-type ATPase complex assembly. Located in Golgi apparatus and early endosome. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, TM9SF4

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TM9SF4NM_014742.4 linkuse as main transcriptc.731A>T p.Lys244Met missense_variant 7/18 ENST00000398022.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TM9SF4ENST00000398022.7 linkuse as main transcriptc.731A>T p.Lys244Met missense_variant 7/181 NM_014742.4 P1
TM9SF4ENST00000217315.9 linkuse as main transcriptc.680A>T p.Lys227Met missense_variant 7/182

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152152
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251484
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135916
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:
0.0000130
AC:
19
AN:
1461888
Hom.:
0
Cov.:
32
AF XY:
0.0000124
AC XY:
9
AN XY:
727244
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:
0.0000171
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152152
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74336
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000224
Hom.:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
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 GeneticsApr 22, 2022The c.731A>T (p.K244M) alteration is located in exon 7 (coding exon 7) of the TM9SF4 gene. This alteration results from a A to T substitution at nucleotide position 731, causing the lysine (K) at amino acid position 244 to be replaced by a methionine (M). 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
0.22
BayesDel_addAF
Benign
-0.030
T
BayesDel_noAF
Benign
-0.28
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.070
T;.
Eigen
Pathogenic
0.70
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
D;D
M_CAP
Benign
0.027
D
MetaRNN
Uncertain
0.49
T;T
MetaSVM
Benign
-0.38
T
MutationAssessor
Benign
1.7
L;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-2.2
N;N
REVEL
Benign
0.18
Sift
Uncertain
0.028
D;D
Sift4G
Uncertain
0.041
D;D
Polyphen
0.95
P;.
Vest4
0.58
MVP
0.12
MPC
1.8
ClinPred
0.82
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.15
gMVP
0.64

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: rs376848441; hg19: chr20-30732972; API