16-67908978-C-T

Position:

• chr16-67908978-C-T

Variant summary

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

The NM_006742.3(PSKH1):​c.229C>T​(p.Pro77Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,714 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 (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: PSKH1 NM_006742.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.85

Genes affected

PSKH1 (HGNC:9529): (protein serine kinase H1) Predicted to enable protein kinase activity. Predicted to act upstream of or within determination of left/right symmetry; heart development; and protein phosphorylation. Located in cytosol and nuclear speck. [provided by Alliance of Genome Resources, Apr 2022]

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=0.100602806).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PSKH1	NM_006742.3	c.229C>T	p.Pro77Ser	missense_variant	2/3	ENST00000291041.6	NP_006733.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PSKH1	ENST00000291041.6	c.229C>T	p.Pro77Ser	missense_variant	2/3	1	NM_006742.3	ENSP00000291041.4
PSKH1	ENST00000570631.5	c.229C>T	p.Pro77Ser	missense_variant	2/2	1		ENSP00000482880.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461714 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727130

Gnomad4 AFR exome AF: 0.0000299

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

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

Mar 19, 2024

The c.229C>T (p.P77S) alteration is located in exon 2 (coding exon 1) of the PSKH1 gene. This alteration results from a C to T substitution at nucleotide position 229, causing the proline (P) at amino acid position 77 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	0.070
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	19
DANN	Benign	0.72
DEOGEN2	Benign	0.054	.;T
Eigen	Benign	-0.37
Eigen_PC	Benign	-0.13
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.78	T;T
M_CAP	Benign	0.0067	T
MetaRNN	Benign	0.10	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.34	.;N
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	0.99	.;N
REVEL	Benign	0.029
Sift	Benign	0.58	.;T
Sift4G	Benign	0.80	T;T
Polyphen		0.0020	.;B
Vest4		0.20
MutPred		0.32		Loss of catalytic residue at P77 (P = 0.0012);Loss of catalytic residue at P77 (P = 0.0012);
MVP		0.79
MPC		0.68
ClinPred		0.16	T
GERP RS		4.7
Varity_R		0.031
gMVP		0.18

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: rs1236245758; hg19: chr16-67942881;