5-16565783-CAA-TAG

Variant names:

• chr5-16565783-CAA-TAG
• NM_001034850.3:c.436_438delTTGinsCTA
• RETREG1 p.147

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_001034850.3(RETREG1):​c.436_438delTTGinsCTA​(p.147) variant causes a synonymous change. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L146L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: RETREG1 NM_001034850.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.74
• Publications: 0 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: Uncertain_significance. The variant received 0 ACMG points.

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.436_438delTTGinsCTA	p.147	synonymous	N/A	NP_001030022.1	Q9H6L5-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RETREG1	ENST00000306320.10	TSL:1 MANE Select	c.436_438delTTGinsCTA	p.147	synonymous	N/A	ENSP00000304642.9	Q9H6L5-1
	RETREG1	ENST00000682229.1		c.436_438delTTGinsCTA	p.147	synonymous	N/A	ENSP00000507342.1	A0A804HJ37
	RETREG1	ENST00000682564.1		c.436_438delTTGinsCTA	p.147	synonymous	N/A	ENSP00000508099.1	A0A804HKW5

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 v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		5.7

Splicing

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: chr5-16565892;