rs1554948318

Positions:

• chr10-122462011-G-A
• chr10-122462011-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2 PP3_Strong PP5_Moderate

The NM_002775.5(HTRA1):​c.359G>A​(p.Gly120Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000726 in 1,377,430 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.3e-7 (0 hom.)
• Consequence: HTRA1 NM_002775.5 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 9.01

Genes affected

HTRA1 (HGNC:9476): (HtrA serine peptidase 1) This gene encodes a member of the trypsin family of serine proteases. This protein is a secreted enzyme that is proposed to regulate the availability of insulin-like growth factors (IGFs) by cleaving IGF-binding proteins. It has also been suggested to be a regulator of cell growth. Variations in the promoter region of this gene are the cause of susceptibility to age-related macular degeneration type 7. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.973
• PP5: Variant 10-122462011-G-A is Pathogenic according to our data. Variant chr10-122462011-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 523572.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HTRA1	NM_002775.5	c.359G>A	p.Gly120Asp	missense_variant	1/9	ENST00000368984.8	NP_002766.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HTRA1	ENST00000368984.8	c.359G>A	p.Gly120Asp	missense_variant	1/9	1	NM_002775.5	ENSP00000357980.3
HTRA1	ENST00000648167.1	c.154+3302G>A		intron_variant				ENSP00000498033.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.26e-7 AC: 1 AN: 1377430 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 679642

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: 9.29e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 2 Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Taipei Veterans General Hospital, Neurological Institute

Apr 13, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Uncertain	0.097	D
BayesDel_noAF	Benign	-0.10
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Benign	0.32	T
Eigen	Pathogenic	0.86
Eigen_PC	Pathogenic	0.68
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.95	D
M_CAP	Pathogenic	0.51	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Uncertain	-0.21	T
MutationAssessor	Pathogenic	4.3	H
PrimateAI	Pathogenic	0.95	D
PROVEAN	Pathogenic	-5.4	D
REVEL	Uncertain	0.56
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.75
MutPred		0.93		Gain of disorder (P = 0.1438);
MVP		0.64
MPC		1.6
ClinPred		1.0	D
GERP RS		4.1
Varity_R		0.89
gMVP		0.97

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: rs1554948318; hg19: chr10-124221527;