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GeneBe

20-35847411-A-G

Variant summary

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

The NM_016436.5(PHF20):c.317A>G(p.Lys106Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000267 in 1,612,040 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 0.000033 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

PHF20
NM_016436.5 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.91
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=0.10668099).
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.317A>G p.Lys106Arg missense_variant 4/18 ENST00000374012.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PHF20ENST00000374012.8 linkuse as main transcriptc.317A>G p.Lys106Arg missense_variant 4/181 NM_016436.5 P1Q9BVI0-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
151970
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000958
GnomAD3 exomes
AF:
0.0000318
AC:
8
AN:
251350
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135844
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000326
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000260
AC:
38
AN:
1460070
Hom.:
0
Cov.:
30
AF XY:
0.0000220
AC XY:
16
AN XY:
726416
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000504
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.000216
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
151970
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74208
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000958
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000247
AC:
3

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 20, 2021The c.317A>G (p.K106R) alteration is located in exon 4 (coding exon 3) of the PHF20 gene. This alteration results from a A to G substitution at nucleotide position 317, causing the lysine (K) at amino acid position 106 to be replaced by an arginine (R). 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
0.074
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.46
Cadd
Benign
17
Dann
Uncertain
0.99
DEOGEN2
Benign
0.15
T;T;T
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.26
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.83
T;T;T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.11
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.57
N;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-2.0
N;N;N
REVEL
Benign
0.076
Sift
Benign
0.15
T;T;T
Sift4G
Benign
0.18
T;T;T
Polyphen
0.0030
B;.;.
Vest4
0.26
MutPred
0.24
Loss of ubiquitination at K106 (P = 0.0381);Loss of ubiquitination at K106 (P = 0.0381);Loss of ubiquitination at K106 (P = 0.0381);
MVP
0.29
MPC
0.32
ClinPred
0.065
T
GERP RS
0.69
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.12
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: rs756903137; hg19: chr20-34435333; API