dbSNP rs878886: CRHR1:n.1823C>A (chr17-45835124-C-A) – 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 ENST00000580955.6(CRHR1):n.1823C>A variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000906 in 110,412 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: not found (cov: 34)

Exomes 𝑓: 0.0000091 ( 0 hom. )

Consequence

CRHR1
ENST00000580955.6 non_coding_transcript_exon

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.825

Publications

0 publications found

Variant links:

Genes affected

CRHR1 (HGNC:2357): (corticotropin releasing hormone receptor 1) This gene encodes a G-protein coupled receptor that binds neuropeptides of the corticotropin releasing hormone family that are major regulators of the hypothalamic-pituitary-adrenal pathway. The encoded protein is essential for the activation of signal transduction pathways that regulate diverse physiological processes including stress, reproduction, immune response and obesity. Alternative splicing results in multiple transcript variants. Naturally-occurring readthrough transcription between this gene and upstream GeneID:147081 results in transcripts that encode isoforms that share similarity with the products of this gene. [provided by RefSeq, Aug 2016]

CRHR1 links:

LINC02210-CRHR1 (HGNC:51483): (LINC02210-CRHR1 readthrough) This locus represents naturally occurring readthrough transcription between neighboring genes CRHR1-IT1, CRHR1 intronic transcript 1 (Gene ID: 147081) and CRHR1, corticotropin releasing hormone receptor 1 (Gene ID: 1394) on chromosome 17. The readthrough transcript encodes a protein that shares sequence identity with the product of the CRHR1 gene. [provided by RefSeq, Dec 2016]

LINC02210-CRHR1 links:

MAPT-AS1 (HGNC:43738): (MAPT antisense RNA 1) Implicated in Parkinson's disease. [provided by Alliance of Genome Resources, Apr 2022]

MAPT-AS1 links:

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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=-0.91).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CRHR1	NM_004382.5 link	c.*360C>A		3_prime_UTR_variant	Exon 13 of 13	ENST00000314537.10	NP_004373.2	P34998-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CRHR1	ENST00000314537.10 link	c.*360C>A		3_prime_UTR_variant	Exon 13 of 13	1	NM_004382.5	ENSP00000326060.6		P34998-2
LINC02210-CRHR1	ENST00000634540.1 link	c.*360C>A		3_prime_UTR_variant	Exon 15 of 15	2		ENSP00000488912.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000906

AC:

AN:

110412

Hom.:

Cov.:

AF XY:

0.0000180

AC XY:

AN XY:

55408

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

4308

American (AMR)

AF:

0.00

AC:

AN:

4622

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

4180

East Asian (EAS)

AF:

0.00

AC:

AN:

7852

South Asian (SAS)

AF:

0.00

AC:

AN:

4126

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6686

Middle Eastern (MID)

AF:

0.00

AC:

AN:

546

European-Non Finnish (NFE)

AF:

0.0000142

AC:

AN:

70668

Other (OTH)

AF:

0.00

AC:

AN:

7424

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.275

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.91

CADD

Benign

7.9

(source)

DANN

Benign

0.17

PhyloP100

0.82

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over