1-114716978-G-A

Variant names:

• chr1-114716978-G-A
• rs8453
• NM_001007553.3:c.*1191C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001007553.3(CSDE1):​c.*1191C>T variant causes a 3 prime UTR change. 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: 33)
• Consequence: CSDE1 NM_001007553.3 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.02
• Publications: 0 publications found

Genes affected

CSDE1 (HGNC:29905): (cold shock domain containing E1) Enables RNA stem-loop binding activity. Involved in IRES-dependent viral translational initiation; nuclear-transcribed mRNA catabolic process, no-go decay; and stress granule assembly. Located in Golgi apparatus; cytosol; and plasma membrane. Part of CRD-mediated mRNA stability complex. [provided by Alliance of Genome Resources, Apr 2022]

NRAS (HGNC:7989): (NRAS proto-oncogene, GTPase) This is an N-ras oncogene encoding a membrane protein that shuttles between the Golgi apparatus and the plasma membrane. This shuttling is regulated through palmitoylation and depalmitoylation by the ZDHHC9-GOLGA7 complex. The encoded protein, which has intrinsic GTPase activity, is activated by a guanine nucleotide-exchange factor and inactivated by a GTPase activating protein. Mutations in this gene have been associated with somatic rectal cancer, follicular thyroid cancer, autoimmune lymphoproliferative syndrome, Noonan syndrome, and juvenile myelomonocytic leukemia. [provided by RefSeq, Jun 2011]

NRAS Gene-Disease associations (from GenCC):

• Noonan syndrome

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• Noonan syndrome 6

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• cardiofaciocutaneous syndrome

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: ClinGen, Genomics England PanelApp
• Costello syndrome

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• Noonan syndrome with multiple lentigines

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• Noonan syndrome-like disorder with loose anagen hair

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

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=-0.53).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001007553.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CSDE1	NM_001007553.3	MANE Select	c.*1191C>T		3_prime_UTR	Exon 20 of 20	NP_001007554.1	O75534-1
	CSDE1	NM_001242891.2		c.*1191C>T		3_prime_UTR	Exon 21 of 21	NP_001229820.1	O75534-4
	CSDE1	NM_001130523.3		c.*1191C>T		3_prime_UTR	Exon 20 of 20	NP_001123995.1	O75534-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CSDE1	ENST00000358528.9	TSL:1 MANE Select	c.*1191C>T		3_prime_UTR	Exon 20 of 20	ENSP00000351329.4	O75534-1
	CSDE1	ENST00000438362.7	TSL:1	c.*1191C>T		3_prime_UTR	Exon 21 of 21	ENSP00000407724.3	O75534-1
	CSDE1	ENST00000339438.10	TSL:1	c.*1191C>T		3_prime_UTR	Exon 19 of 19	ENSP00000342408.6	O75534-2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.53
CADD	Benign	19
DANN	Benign	0.93
PhyloP100		6.0
PromoterAI		-0.014	Neutral

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: rs8453; hg19: chr1-115259599;