NM_020975.6:c.74-7526T>C

Variant names:

• chr10-43092933-T-C
• rs752977
• NM_020975.6:c.74-7526T>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_020975.6(RET):​c.74-7526T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.785 in 152,188 control chromosomes in the GnomAD database, including 47,929 homozygotes. 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: 𝑓 0.78 (47929 hom., cov: 33)
• Consequence: RET NM_020975.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.820
• 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: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.941 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RET	NM_020975.6	c.74-7526T>C		intron_variant	Intron 1 of 19	ENST00000355710.8	NP_066124.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RET	ENST00000355710.8	c.74-7526T>C		intron_variant	Intron 1 of 19	5	NM_020975.6	ENSP00000347942.3

Frequencies

GnomAD3 genomes AF: 0.785 AC: 119313 AN: 152070 Hom.: 47865 Cov.: 33

Gnomad AFR AF: 0.949

Gnomad AMI AF: 0.834

Gnomad AMR AF: 0.756

Gnomad ASJ AF: 0.701

Gnomad EAS AF: 0.542

Gnomad SAS AF: 0.708

Gnomad FIN AF: 0.636

Gnomad MID AF: 0.715

Gnomad NFE AF: 0.742

Gnomad OTH AF: 0.774

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

GnomAD4 genome AF: 0.785 AC: 119445 AN: 152188 Hom.: 47929 Cov.: 33 AF XY: 0.777 AC XY: 57817 AN XY: 74382

African (AFR) AF: 0.949 AC: 39425 AN: 41550

American (AMR) AF: 0.757 AC: 11564 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.701 AC: 2434 AN: 3472

East Asian (EAS) AF: 0.542 AC: 2800 AN: 5164

South Asian (SAS) AF: 0.709 AC: 3421 AN: 4826

European-Finnish (FIN) AF: 0.636 AC: 6728 AN: 10578

Middle Eastern (MID) AF: 0.714 AC: 210 AN: 294

European-Non Finnish (NFE) AF: 0.742 AC: 50468 AN: 68000

Other (OTH) AF: 0.773 AC: 1634 AN: 2114

Alfa AF: 0.765 Hom.: 5851

Bravo AF: 0.803

Asia WGS AF: 0.653 AC: 2272 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	2.2
DANN	Benign	0.45
PhyloP100		-0.82
Mutation Taster		=100/0	polymorphism (auto)

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: rs752977; hg19: chr10-43588381;