8-132836627-C-A

Position:

• chr8-132836627-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_016018.5(PHF20L1):​c.1997C>A​(p.Thr666Asn) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PHF20L1 NM_016018.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.34

Genes affected

PHF20L1 (HGNC:24280): (PHD finger protein 20 like 1) Predicted to enable metal ion binding activity. Predicted to be involved in histone acetylation and regulation of transcription by RNA polymerase II. Predicted to be located in nucleus. Predicted to be part of NSL complex. [provided by Alliance of Genome Resources, Apr 2022]

PHF20L1 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PHF20L1	NM_016018.5	c.1997C>A	p.Thr666Asn	missense_variant	16/21	ENST00000395386.7	NP_057102.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PHF20L1	ENST00000395386.7	c.1997C>A	p.Thr666Asn	missense_variant	16/21	5	NM_016018.5	ENSP00000378784.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

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

Oct 16, 2024

The c.1997C>A (p.T666N) alteration is located in exon 16 (coding exon 15) of the PHF20L1 gene. This alteration results from a C to A substitution at nucleotide position 1997, causing the threonine (T) at amino acid position 666 to be replaced by an asparagine (N). 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	Uncertain	0.37
BayesDel_addAF	Benign	-0.052	T
BayesDel_noAF	Benign	-0.31
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Benign	0.095	T;T;T;T
Eigen	Uncertain	0.62
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.88	D;D;.;D
M_CAP	Benign	0.017	T
MetaRNN	Uncertain	0.46	T;T;T;T
MetaSVM	Benign	-0.79	T
MutationAssessor	Uncertain	2.3	M;.;M;.
PrimateAI	Uncertain	0.77	T
PROVEAN	Benign	-2.1	.;.;N;N
REVEL	Benign	0.14
Sift	Uncertain	0.0040	.;.;D;D
Sift4G	Uncertain	0.0060	D;D;D;D
Polyphen		1.0	D;.;D;D
Vest4		0.66
MutPred		0.20		Loss of glycosylation at S665 (P = 0.1326);.;Loss of glycosylation at S665 (P = 0.1326);.;
MVP		0.15
MPC		0.84
ClinPred		0.95	D
GERP RS		5.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.24
gMVP		0.50

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: chr8-133848872;