chr17-7236206-G-A

Position:

• chr17-7236206-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_024297.3(PHF23):​c.721C>T​(p.Pro241Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000822 in 1,460,500 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: not found (cov: 32)
  • Exomes 𝑓: 0.0000082 (0 hom.)
• Consequence: PHF23 NM_024297.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.76

Genes affected

PHF23 (HGNC:28428): (PHD finger protein 23) Predicted to enable metal ion binding activity. Involved in negative regulation of autophagosome assembly; negative regulation of autophagosome maturation; and positive regulation of protein ubiquitination. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.11722562).
• BS2: High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PHF23	NM_024297.3	c.721C>T	p.Pro241Ser	missense_variant	4/5	ENST00000320316.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PHF23	ENST00000320316.8	c.721C>T	p.Pro241Ser	missense_variant	4/5	1	NM_024297.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000822 AC: 12 AN: 1460500 Hom.: 0 Cov.: 34 AF XY: 0.00000413 AC XY: 3 AN XY: 726476

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: 0.00000900

Gnomad4 OTH exome AF: 0.0000331

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 29, 2023

The c.721C>T (p.P241S) alteration is located in exon 4 (coding exon 4) of the PHF23 gene. This alteration results from a C to T substitution at nucleotide position 721, causing the proline (P) at amino acid position 241 to be replaced by a serine (S). 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	0.094
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.57
CADD	Benign	20
DANN	Uncertain	0.98
DEOGEN2	Benign	0.015	T;.;.;.;T
Eigen	Benign	-0.26
Eigen_PC	Benign	-0.085
FATHMM_MKL	Benign	0.66	D
LIST_S2	Uncertain	0.87	D;D;D;D;D
M_CAP	Benign	0.020	T
MetaRNN	Benign	0.12	T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.0	N;.;.;.;.
MutationTaster	Benign	0.93	N;N;N;N
PrimateAI	Uncertain	0.57	T
PROVEAN	Benign	-0.82	N;.;.;N;.
REVEL	Benign	0.086
Sift	Benign	0.030	D;.;.;D;.
Sift4G	Benign	0.61	T;T;T;T;T
Polyphen		0.0030	B;.;.;.;.
Vest4		0.15
MutPred		0.34		Gain of phosphorylation at P241 (P = 4e-04);.;.;.;.;
MVP		0.082
MPC		0.47
ClinPred		0.21	T
GERP RS		4.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.077
gMVP		0.43

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-7139525;