chr9-101476932-C-T

Variant summary

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

The NM_032342.3(PGAP4):​c.161G>A​(p.Arg54His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,613,930 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

PGAP4
NM_032342.3 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.14
Variant links:
Genes affected
PGAP4 (HGNC:28180): (post-GPI attachment to proteins GalNAc transferase 4) Enables glycosyltransferase activity. Involved in GPI anchor biosynthetic process. Located in Golgi membrane. [provided by Alliance of Genome Resources, Apr 2022]
TMEM246-AS1 (HGNC:51191): (TMEM246 antisense RNA 1)

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=0.19505474).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PGAP4NM_032342.3 linkuse as main transcriptc.161G>A p.Arg54His missense_variant 2/2 ENST00000374848.8
TMEM246-AS1NR_121573.1 linkuse as main transcriptn.337+1890C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PGAP4ENST00000374848.8 linkuse as main transcriptc.161G>A p.Arg54His missense_variant 2/21 NM_032342.3 P1
TMEM246-AS1ENST00000424154.6 linkuse as main transcriptn.212-2908C>T intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152088
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000318
AC:
8
AN:
251320
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135812
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000173
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000342
AC:
50
AN:
1461842
Hom.:
0
Cov.:
32
AF XY:
0.0000426
AC XY:
31
AN XY:
727224
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000157
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000324
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152088
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74286
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.0000412
AC:
5

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 GeneticsNov 30, 2022The c.161G>A (p.R54H) alteration is located in exon 2 (coding exon 1) of the TMEM246 gene. This alteration results from a G to A substitution at nucleotide position 161, causing the arginine (R) at amino acid position 54 to be replaced by a histidine (H). 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
0.14
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.17
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.075
T;T;T
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.85
.;.;D
M_CAP
Benign
0.0028
T
MetaRNN
Benign
0.20
T;T;T
MetaSVM
Benign
-0.36
T
MutationAssessor
Benign
0.90
L;L;L
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-1.9
N;N;N
REVEL
Benign
0.18
Sift
Uncertain
0.0060
D;D;D
Sift4G
Uncertain
0.010
D;D;D
Polyphen
1.0
D;D;D
Vest4
0.14
MutPred
0.55
Loss of stability (P = 0.0762);Loss of stability (P = 0.0762);Loss of stability (P = 0.0762);
MVP
0.20
MPC
0.51
ClinPred
0.26
T
GERP RS
5.6
Varity_R
0.14
gMVP
0.54

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: rs751875311; hg19: chr9-104239214; COSMIC: COSV66387805; API