Genetic Variant HTRA1:c.1274+144C>T (chr10-122512209-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_002775.5(HTRA1):c.1274+144C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000027 in 740,064 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.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000017 ( 0 hom. )

Consequence

HTRA1
NM_002775.5 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.832

Publications

0 publications found

Variant links:

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

HTRA1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.79).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HTRA1	NM_002775.5 link	c.1274+144C>T		intron_variant	Intron 8 of 8	ENST00000368984.8	NP_002766.1	Q92743

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
HTRA1	ENST00000368984.8 link	c.1274+144C>T	intron_variant	Intron 8 of 8	1	NM_002775.5	ENSP00000357980.3	Q92743
HTRA1	ENST00000648167.1 link	c.956+144C>T	intron_variant	Intron 8 of 8			ENSP00000498033.1	A0A3B3IU24
HTRA1	ENST00000420892.1 link	c.497+144C>T	intron_variant	Intron 5 of 5	2		ENSP00000412676.1	H0Y7G9

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152134

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000170

AC:

AN:

587930

Hom.:

AF XY:

0.00000316

AC XY:

AN XY:

316286

show subpopulations

African (AFR)

AF:

0.0000611

AC:

AN:

16354

American (AMR)

AF:

0.00

AC:

AN:

35212

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19546

East Asian (EAS)

AF:

0.00

AC:

AN:

32172

South Asian (SAS)

AF:

0.00

AC:

AN:

63386

European-Finnish (FIN)

AF:

0.00

AC:

AN:

35096

Middle Eastern (MID)

AF:

0.00

AC:

AN:

2490

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

352308

Other (OTH)

AF:

0.00

AC:

AN:

31366

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152134

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74322

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41406

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68044

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.79

CADD

Benign

7.2

(source)

DANN

Benign

0.79

PhyloP100

0.83

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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chr10-122512209-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over