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GeneBe

20-35801593-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_016436.5(PHF20):c.71G>A(p.Arg24His) variant causes a missense change. The variant allele was found at a frequency of 0.000018 in 1,609,880 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 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

PHF20
NM_016436.5 missense

Scores

2
5
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.57
Variant links:
Genes affected
PHF20 (HGNC:16098): (PHD finger protein 20) Predicted to enable DNA binding activity and metal ion binding activity. Involved in histone H4-K16 acetylation; histone H4-K5 acetylation; and histone H4-K8 acetylation. Located in cytosol; nuclear membrane; and nucleoplasm. Part of MLL1 complex and histone acetyltransferase complex. [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 -5 ACMG points.

PP2
Missense variant where missense usually causes diseases, PHF20
BP4
Computational evidence support a benign effect (MetaRNN=0.21502417).
BS2
High AC in GnomAd at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PHF20NM_016436.5 linkuse as main transcriptc.71G>A p.Arg24His missense_variant 2/18 ENST00000374012.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PHF20ENST00000374012.8 linkuse as main transcriptc.71G>A p.Arg24His missense_variant 2/181 NM_016436.5 P1Q9BVI0-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152124
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000400
AC:
10
AN:
250118
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
135206
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.0000998
Gnomad EAS exome
AF:
0.0000546
Gnomad SAS exome
AF:
0.000197
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000165
AC:
24
AN:
1457756
Hom.:
0
Cov.:
28
AF XY:
0.0000124
AC XY:
9
AN XY:
725360
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000698
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.0000664
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152124
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74306
show subpopulations
Gnomad4 AFR
AF:
0.0000724
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000493
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000494
AC:
6

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 GeneticsJan 04, 2024The c.71G>A (p.R24H) alteration is located in exon 2 (coding exon 1) of the PHF20 gene. This alteration results from a G to A substitution at nucleotide position 71, causing the arginine (R) at amino acid position 24 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
Pathogenic
0.81
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.26
Cadd
Pathogenic
29
Dann
Uncertain
0.99
DEOGEN2
Benign
0.028
T;T;T
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D;D;D
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.22
T;T;T
MetaSVM
Benign
-0.80
T
MutationAssessor
Benign
1.7
L;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
0.10
N;N;N
REVEL
Benign
0.20
Sift
Benign
0.47
T;T;T
Sift4G
Benign
0.55
T;T;T
Polyphen
1.0
D;.;.
Vest4
0.56
MutPred
0.34
Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);
MVP
0.40
MPC
0.56
ClinPred
0.30
T
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.16
gMVP
0.68

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: rs768125992; hg19: chr20-34389515; API