10-122467114-G-T

Variant names:

• chr10-122467114-G-T
• rs2284665
• NM_002775.5:c.472+4990G>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002775.5(HTRA1):​c.472+4990G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.235 in 152,180 control chromosomes in the GnomAD database, including 4,382 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as not provided (no stars).

• Frequency: Genomes: 𝑓 0.23 (4382 hom., cov: 33)
• Consequence: HTRA1 NM_002775.5 intron
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: -1.70
• Publications: 28 publications found

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]

HTRA1 Gene-Disease associations (from GenCC):

• CARASIL syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
• cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 2

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• genetic cerebral small vessel disease

  Inheritance: AD Classification: STRONG Submitted by: Franklin by Genoox
• HTRA1-related autosomal dominant cerebral small vessel disease

  Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.439 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HTRA1	NM_002775.5	c.472+4990G>T		intron_variant	Intron 1 of 8	ENST00000368984.8	NP_002766.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HTRA1	ENST00000368984.8	c.472+4990G>T		intron_variant	Intron 1 of 8	1	NM_002775.5	ENSP00000357980.3
HTRA1	ENST00000648167.1	c.154+8405G>T		intron_variant	Intron 1 of 8			ENSP00000498033.1

Frequencies

GnomAD3 genomes AF: 0.235 AC: 35704 AN: 152062 Hom.: 4371 Cov.: 33

Gnomad AFR AF: 0.232

Gnomad AMI AF: 0.235

Gnomad AMR AF: 0.226

Gnomad ASJ AF: 0.214

Gnomad EAS AF: 0.453

Gnomad SAS AF: 0.317

Gnomad FIN AF: 0.234

Gnomad MID AF: 0.177

Gnomad NFE AF: 0.217

Gnomad OTH AF: 0.240

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.235 AC: 35749 AN: 152180 Hom.: 4382 Cov.: 33 AF XY: 0.238 AC XY: 17684 AN XY: 74396

African (AFR) AF: 0.232 AC: 9640 AN: 41512

American (AMR) AF: 0.227 AC: 3479 AN: 15308

Ashkenazi Jewish (ASJ) AF: 0.214 AC: 742 AN: 3470

East Asian (EAS) AF: 0.454 AC: 2343 AN: 5162

South Asian (SAS) AF: 0.318 AC: 1533 AN: 4822

European-Finnish (FIN) AF: 0.234 AC: 2475 AN: 10590

Middle Eastern (MID) AF: 0.187 AC: 55 AN: 294

European-Non Finnish (NFE) AF: 0.217 AC: 14768 AN: 68000

Other (OTH) AF: 0.237 AC: 500 AN: 2110

Alfa AF: 0.212 Hom.: 4916

Bravo AF: 0.238

Asia WGS AF: 0.383 AC: 1330 AN: 3478

ClinVar

Significance: not provided

Submissions summary: Other:1

Revision: no classification provided

Submissions by phenotype

not provided Other:1

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Department of Ophthalmology and Visual Sciences Kyoto University

Significance: not provided

Review Status: no classification provided

Collection Method: not provided

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	0.021
DANN	Benign	0.53
PhyloP100		-1.7
Mutation Taster		=100/0	polymorphism (auto)

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: rs2284665; hg19: chr10-124226630;