NM_020975.6:c.1522+35C>G

Variant names:

• chr10-43111500-C-G
• rs377130948
• NM_020975.6:c.1522+35C>G

Variant summary

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

The NM_020975.6(RET):​c.1522+35C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000692 in 1,445,348 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: 6.9e-7 (0 hom.)
• Consequence: RET NM_020975.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.147
• Publications: 0 publications found

Genes affected

RET (HGNC:9967): (ret proto-oncogene) This gene encodes a transmembrane receptor and member of the tyrosine protein kinase family of proteins. Binding of ligands such as GDNF (glial cell-line derived neurotrophic factor) and other related proteins to the encoded receptor stimulates receptor dimerization and activation of downstream signaling pathways that play a role in cell differentiation, growth, migration and survival. The encoded receptor is important in development of the nervous system, and the development of organs and tissues derived from the neural crest. This proto-oncogene can undergo oncogenic activation through both cytogenetic rearrangement and activating point mutations. Mutations in this gene are associated with Hirschsprung disease and central hypoventilation syndrome and have been identified in patients with renal agenesis. [provided by RefSeq, Sep 2017]

RET Gene-Disease associations (from GenCC):

• familial medullary thyroid carcinoma

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
• multiple endocrine neoplasia type 2A

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P
• multiple endocrine neoplasia type 2B

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen
• pheochromocytoma

  Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
• Hirschsprung disease, susceptibility to, 1

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• Haddad syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Hirschsprung disease

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• renal agenesis, unilateral

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• bilateral renal agenesis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• renal agenesis

  Inheritance: AR Classification: LIMITED Submitted by: G2P

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=-0.93).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RET	NM_020975.6	c.1522+35C>G		intron_variant	Intron 7 of 19	ENST00000355710.8	NP_066124.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RET	ENST00000355710.8	c.1522+35C>G		intron_variant	Intron 7 of 19	5	NM_020975.6	ENSP00000347942.3

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD2 exomes AF: 0.00000443 AC: 1 AN: 225766 AF XY: 0.00000808

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000100

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.92e-7 AC: 1 AN: 1445348 Hom.: 0 Cov.: 34 AF XY: 0.00000139 AC XY: 1 AN XY: 716918

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

African (AFR) AF: 0.00 AC: 0 AN: 33128

American (AMR) AF: 0.00 AC: 0 AN: 43512

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25736

East Asian (EAS) AF: 0.00 AC: 0 AN: 39252

South Asian (SAS) AF: 0.00 AC: 0 AN: 85178

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5680

European-Non Finnish (NFE) AF: 9.07e-7 AC: 1 AN: 1102622

Other (OTH) AF: 0.00 AC: 0 AN: 59620

⚠️ 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.

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	0.095
DANN	Benign	0.45
PhyloP100		-0.15

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: rs377130948; hg19: chr10-43606948;