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GeneBe

20-32160055-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3

The NM_014742.4(TM9SF4):c.1633G>A(p.Val545Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TM9SF4
NM_014742.4 missense

Scores

6
6
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.54
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 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, TM9SF4
PP3
MetaRNN computational evidence supports a deleterious effect, 0.773

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TM9SF4NM_014742.4 linkuse as main transcriptc.1633G>A p.Val545Met missense_variant 16/18 ENST00000398022.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TM9SF4ENST00000398022.7 linkuse as main transcriptc.1633G>A p.Val545Met missense_variant 16/181 NM_014742.4 P1
TM9SF4ENST00000217315.9 linkuse as main transcriptc.1582G>A p.Val528Met missense_variant 16/182
TM9SF4ENST00000495749.1 linkuse as main transcriptn.913G>A non_coding_transcript_exon_variant 1/32

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461894
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

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 26, 2022The c.1633G>A (p.V545M) alteration is located in exon 16 (coding exon 16) of the TM9SF4 gene. This alteration results from a G to A substitution at nucleotide position 1633, causing the valine (V) at amino acid position 545 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
0.21
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Uncertain
-0.030
Cadd
Pathogenic
32
Dann
Uncertain
1.0
DEOGEN2
Benign
0.077
T;.
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
D;D
M_CAP
Benign
0.017
T
MetaRNN
Pathogenic
0.77
D;D
MetaSVM
Benign
-0.52
T
MutationAssessor
Uncertain
2.0
M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.91
D
PROVEAN
Benign
-1.8
N;N
REVEL
Uncertain
0.31
Sift
Benign
0.038
D;D
Sift4G
Uncertain
0.044
D;D
Polyphen
0.99
D;.
Vest4
0.72
MutPred
0.68
Gain of sheet (P = 0.1945);.;
MVP
0.46
MPC
1.8
ClinPred
0.90
D
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.19
gMVP
0.67

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr20-30747858; API