1-158944943-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_152501.5(PYHIN1):c.1260G>T(p.Gln420His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000277 in 1,613,550 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q420R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000092 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00030 (0 hom.)
• Consequence: PYHIN1 NM_152501.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.42

Genes affected

PYHIN1 (HGNC:28894): (pyrin and HIN domain family member 1) The protein encoded by this gene belongs to the HIN-200 family of interferon-inducible proteins that share a 200-amino acid signature motif at their C-termini. HIN200 proteins are primarily nuclear and are involved in transcriptional regulation of genes important for cell cycle control, differentiation, and apoptosis. Downregulation of this gene is associated with breast cancer. This protein acts as a tumor suppressor by promoting ubiquitination and subsequent degradation of MDM2, which leads to stabilization of p53/TP53. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Aug 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06891364).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PYHIN1	NM_152501.5	c.1260G>T	p.Gln420His	missense_variant	7/9	ENST00000368140.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PYHIN1	ENST00000368140.6	c.1260G>T	p.Gln420His	missense_variant	7/9	1	NM_152501.5	P2

Frequencies

GnomAD3 genomes AF: 0.0000920 AC: 14 AN: 152114 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000483

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

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: 0.000147

Gnomad OTH AF: 0.000479

GnomAD3 exomes AF: 0.000115 AC: 29 AN: 251140 Hom.: 0 AF XY: 0.000103 AC XY: 14 AN XY: 135746

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000145

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000202

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.000296 AC: 433 AN: 1461436 Hom.: 0 Cov.: 30 AF XY: 0.000264 AC XY: 192 AN XY: 727026

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.000112

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: 0.000382

Gnomad4 OTH exome AF: 0.0000497

GnomAD4 genome AF: 0.0000920 AC: 14 AN: 152114 Hom.: 0 Cov.: 32 AF XY: 0.0000673 AC XY: 5 AN XY: 74302

Gnomad4 AFR AF: 0.0000483

Gnomad4 AMR AF: 0.0000655

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000147

Gnomad4 OTH AF: 0.000479

Alfa AF: 0.0000658 Hom.: 0

Bravo AF: 0.0000793

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.00 AC: 0

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000233 AC: 2

ExAC AF: 0.0000659 AC: 8

EpiCase AF: 0.000164

EpiControl AF: 0.000356

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

Apr 07, 2022

The c.1260G>T (p.Q420H) alteration is located in exon 7 (coding exon 6) of the PYHIN1 gene. This alteration results from a G to T substitution at nucleotide position 1260, causing the glutamine (Q) at amino acid position 420 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	Benign	0.13
BayesDel_addAF	Benign	-0.51	T
BayesDel_noAF	Benign	-0.70
Cadd	Benign	7.2
Dann	Benign	0.94
DEOGEN2	Benign	0.0090	T;.;.;.
Eigen	Benign	-0.82
Eigen_PC	Benign	-0.88
FATHMM_MKL	Benign	0.081	N
LIST_S2	Benign	0.62	T;T;T;T
M_CAP	Benign	0.0039	T
MetaRNN	Benign	0.069	T;T;T;T
MetaSVM	Benign	-0.95	T
MutationAssessor	Benign	1.0	L;.;L;.
MutationTaster	Benign	1.0	N;N;N;N
PrimateAI	Benign	0.24	T
PROVEAN	Benign	-0.95	N;N;N;N
REVEL	Benign	0.051
Sift	Benign	0.076	T;T;T;T
Sift4G	Benign	0.13	T;T;T;T
Polyphen		0.028	B;B;B;B
Vest4		0.17
MutPred		0.058		Gain of glycosylation at S425 (P = 0.1082);.;Gain of glycosylation at S425 (P = 0.1082);.;
MVP		0.13
MPC		0.31
ClinPred		0.045	T
GERP RS		2.3
Varity_R		0.088
gMVP		0.058

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

Other links and lift over

dbSNP: rs150828296; hg19: chr1-158914733;