2-74530433-C-T

Position:

• chr2-74530433-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_013247.5(HTRA2):​c.427C>T​(p.Pro143Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000207 in 1,452,462 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. P143A) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: HTRA2 NM_013247.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.62

Genes affected

HTRA2 (HGNC:14348): (HtrA serine peptidase 2) This gene encodes a serine protease. The protein has been localized in the endoplasmic reticulum and interacts with an alternatively spliced form of mitogen-activated protein kinase 14. The protein has also been localized to the mitochondria with release to the cytosol following apoptotic stimulus. The protein is thought to induce apoptosis by binding the apoptosis inhibitory protein baculoviral IAP repeat-containing 4. Nuclear localization of this protein has also been observed. Alternate splicing of this gene results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.27724808).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HTRA2	NM_013247.5	c.427C>T	p.Pro143Ser	missense_variant	1/8	ENST00000258080.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HTRA2	ENST00000258080.8	c.427C>T	p.Pro143Ser	missense_variant	1/8	1	NM_013247.5	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000428 AC: 1 AN: 233530 Hom.: 0 AF XY: 0.00000777 AC XY: 1 AN XY: 128726

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

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: 0.00000941

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000207 AC: 3 AN: 1452462 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 722766

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: 0.00000180

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.26
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.39
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.31	T;.;T
Eigen	Uncertain	0.40
Eigen_PC	Uncertain	0.38
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Benign	0.83	T;T;T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.28	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.69	N;N;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.73	T
PROVEAN	Uncertain	-3.1	D;N;D
REVEL	Benign	0.17
Sift	Benign	0.15	T;T;T
Sift4G	Benign	0.22	T;T;T
Polyphen		1.0	D;D;.
Vest4		0.33
MutPred		0.30		Gain of relative solvent accessibility (P = 0.0023);Gain of relative solvent accessibility (P = 0.0023);.;
MVP		0.67
MPC		2.0
ClinPred		0.50	D
GERP RS		5.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.46
gMVP		0.81

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs387906942; hg19: chr2-74757560;