rs2023878

Positions:

• chr19-18723314-C-A
• chr19-18723314-C-G
• chr19-18723314-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_015321.3(CRTC1):​c.127-19596C>A variant causes a intron 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CRTC1 NM_015321.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.822

Genes affected

CRTC1 (HGNC:16062): (CREB regulated transcription coactivator 1) Enables cAMP response element binding protein binding activity. Involved in positive regulation of transcription by RNA polymerase II. Located in cytosol; nuclear body; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.99).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CRTC1	NM_015321.3	c.127-19596C>A		intron_variant		ENST00000321949.13	NP_056136.2
CRTC1	NM_001098482.2	c.127-19596C>A		intron_variant			NP_001091952.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CRTC1	ENST00000321949.13	c.127-19596C>A		intron_variant		1	NM_015321.3	ENSP00000323332	A1
CRTC1	ENST00000338797.10	c.127-19596C>A		intron_variant		1		ENSP00000345001	P4

Frequencies

GnomAD3 genomes Cov.: 32

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

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.99
CADD	Benign	0.57
DANN	Benign	0.81

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: rs2023878; hg19: chr19-18834124;