5-16477736-G-T

Variant names:

• chr5-16477736-G-T
• NM_001034850.3:c.926C>A
• RETREG1 p.Ser309*

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_001034850.3(RETREG1):​c.926C>A​(p.Ser309*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: RETREG1 NM_001034850.3 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.17
• Publications: 1 publications found

Genes affected

RETREG1 (HGNC:25964): (reticulophagy regulator 1) The protein encoded by this gene is a cis-Golgi transmembrane protein that may be necessary for the long-term survival of nociceptive and autonomic ganglion neurons. Mutations in this gene are a cause of hereditary sensory and autonomic neuropathy type IIB (HSAN IIB), and this gene may also play a role in susceptibility to vascular dementia. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

RETREG1 Gene-Disease associations (from GenCC):

• hereditary sensory and autonomic neuropathy

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• neuropathy, hereditary sensory and autonomic, type 2B

  Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
• hereditary sensory and autonomic neuropathy type 2

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001034850.3. 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
	RETREG1	NM_001034850.3	MANE Select	c.926C>A	p.Ser309*	stop_gained	Exon 8 of 9	NP_001030022.1	Q9H6L5-1
	RETREG1	NM_019000.5		c.503C>A	p.Ser168*	stop_gained	Exon 6 of 7	NP_061873.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RETREG1	ENST00000306320.10	TSL:1 MANE Select	c.926C>A	p.Ser309*	stop_gained	Exon 8 of 9	ENSP00000304642.9	Q9H6L5-1
	RETREG1	ENST00000399793.6	TSL:1	c.503C>A	p.Ser168*	stop_gained	Exon 6 of 7	ENSP00000382691.2	Q9H6L5-2
	RETREG1	ENST00000510362.6	TSL:1	n.401C>A		non_coding_transcript_exon	Exon 6 of 8	ENSP00000425089.2	H0Y9U4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.57	D
BayesDel_noAF	Pathogenic	0.59
CADD	Pathogenic	42
DANN	Uncertain	1.0
Eigen	Pathogenic	0.98
Eigen_PC	Pathogenic	0.85
FATHMM_MKL	Pathogenic	0.97	D
PhyloP100		9.2
Mutation Taster		=2/198	disease causing (fs/PTC)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr5-16477845;