15-55546688-C-G

Variant names:

• chr15-55546688-C-G
• rs988814042
• NM_001367806.1:c.595G>C

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001367806.1(PYGO1):​c.595G>C​(p.Asp199His) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,752 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D199N) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PYGO1 NM_001367806.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.29
• Publications: 0 publications found

Genes affected

PYGO1 (HGNC:30256): (pygopus family PHD finger 1) Enables methylated histone binding activity. Predicted to be involved in kidney development and spermatid nucleus differentiation. Predicted to act upstream of or within several processes, including hematopoietic progenitor cell differentiation; protein localization to nucleus; and spermatid development. Predicted to be located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.30632538).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001367806.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PYGO1	NM_001367806.1	MANE Select	c.595G>C	p.Asp199His	missense	Exon 3 of 3	NP_001354735.1	Q9Y3Y4-2
	PYGO1	NM_001330326.2		c.595G>C	p.Asp199His	missense	Exon 3 of 4	NP_001317255.1	Q9Y3Y4-2
	PYGO1	NM_015617.3		c.595G>C	p.Asp199His	missense	Exon 3 of 3	NP_056432.1	Q9Y3Y4-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PYGO1	ENST00000563719.4	TSL:5 MANE Select	c.595G>C	p.Asp199His	missense	Exon 3 of 3	ENSP00000457777.1	Q9Y3Y4-2
	PYGO1	ENST00000302000.10	TSL:1	c.595G>C	p.Asp199His	missense	Exon 3 of 3	ENSP00000302327.6	Q9Y3Y4-1
	PYGO1	ENST00000645724.1		c.595G>C	p.Asp199His	missense	Exon 3 of 4	ENSP00000496139.1	Q9Y3Y4-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461752 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727190

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.0000224 AC: 1 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.00 AC: 0 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111892

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.30
BayesDel_addAF	Uncertain	0.091	D
BayesDel_noAF	Benign	-0.11
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.10	T
Eigen	Uncertain	0.51
Eigen_PC	Uncertain	0.53
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.31	T
MetaSVM	Benign	-0.85	T
MutationAssessor	Benign	1.8	L
PhyloP100		5.3
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	0.25	N
REVEL	Benign	0.23
Sift	Uncertain	0.0080	D
Sift4G	Benign	0.18	T
Polyphen		1.0	D
Vest4		0.61
MutPred		0.099		Loss of relative solvent accessibility (P = 0.114)
MVP		0.45
MPC		0.59
ClinPred		0.89	D
GERP RS		4.8
Varity_R		0.17
gMVP		0.75

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

Other links and lift over

dbSNP: rs988814042; hg19: chr15-55838886;