17-45807072-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004382.5(CRHR1):c.96C>A(p.Ser32Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: CRHR1 NM_004382.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.747

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]

LINC02210-CRHR1 (HGNC:):

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

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.22134835).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CRHR1	NM_004382.5	c.96C>A	p.Ser32Arg	missense_variant	2/13	ENST00000314537.10
LINC02210-CRHR1	NM_001256299.3	c.-430C>A		5_prime_UTR_variant	4/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CRHR1	ENST00000314537.10	c.96C>A	p.Ser32Arg	missense_variant	2/13	1	NM_004382.5	P1
MAPT-AS1	ENST00000634876.2	n.2594-6282G>T		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 26, 2023

The c.96C>A (p.S32R) alteration is located in exon 2 (coding exon 2) of the CRHR1 gene. This alteration results from a C to A substitution at nucleotide position 96, causing the serine (S) at amino acid position 32 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.38
Cadd	Benign	15
Dann	Benign	0.82
DEOGEN2	Benign	0.093	T;.;.;.;.;T
Eigen	Benign	-0.70
Eigen_PC	Benign	-0.60
FATHMM_MKL	Benign	0.58	D
LIST_S2	Uncertain	0.90	D;T;T;D;T;T
M_CAP	Benign	0.023	T
MetaRNN	Benign	0.22	T;T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationTaster	Benign	0.90	D;D;D;D;D;D
PrimateAI	Benign	0.48	T
Sift4G	Uncertain	0.0070	D;T;T;T;T;T
Polyphen		0.0020, 0.94, 0.0040, 0.072	.;.;B;P;B;B
Vest4		0.72
MutPred		0.27		Loss of disorder (P = 0.0693);Loss of disorder (P = 0.0693);Loss of disorder (P = 0.0693);Loss of disorder (P = 0.0693);Loss of disorder (P = 0.0693);Loss of disorder (P = 0.0693);
MVP		0.54
MPC		0.71
ClinPred		0.096	T
GERP RS		2.1
Varity_R		0.20
gMVP		0.72

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: rs2061733943; hg19: chr17-43884438;