rs758081460

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 1P and 1B. PM4_SupportingBS1_Supporting

The NM_001034850.3(RETREG1):​c.1453_1455delAAG​(p.Lys485del) variant causes a conservative inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000372 in 1,612,196 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

RETREG1
NM_001034850.3 conservative_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.17

Publications

0 publications found
Variant links:
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):
  • 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM4
Nonframeshift variant in NON repetitive region in NM_001034850.3. Strenght limited to Supporting due to length of the change: 1aa.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000232 (35/150718) while in subpopulation AFR AF = 0.00083 (34/40978). AF 95% confidence interval is 0.00061. There are 0 homozygotes in GnomAd4. There are 17 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RETREG1NM_001034850.3 linkc.1453_1455delAAG p.Lys485del conservative_inframe_deletion Exon 9 of 9 ENST00000306320.10 NP_001030022.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RETREG1ENST00000306320.10 linkc.1453_1455delAAG p.Lys485del conservative_inframe_deletion Exon 9 of 9 1 NM_001034850.3 ENSP00000304642.9

Frequencies

GnomAD3 genomes
AF:
0.000232
AC:
35
AN:
150604
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000832
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000480
GnomAD2 exomes
AF:
0.0000361
AC:
9
AN:
249014
AF XY:
0.0000296
show subpopulations
Gnomad AFR exome
AF:
0.000388
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000111
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000171
AC:
25
AN:
1461478
Hom.:
0
AF XY:
0.0000165
AC XY:
12
AN XY:
727060
show subpopulations
African (AFR)
AF:
0.000658
AC:
22
AN:
33458
American (AMR)
AF:
0.0000224
AC:
1
AN:
44696
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53164
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111920
Other (OTH)
AF:
0.00
AC:
0
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000232
AC:
35
AN:
150718
Hom.:
0
Cov.:
31
AF XY:
0.000231
AC XY:
17
AN XY:
73490
show subpopulations
African (AFR)
AF:
0.000830
AC:
34
AN:
40978
American (AMR)
AF:
0.00
AC:
0
AN:
15044
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3462
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5114
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4780
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10210
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
290
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67830
Other (OTH)
AF:
0.000475
AC:
1
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.524
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000214
Hom.:
0
Bravo
AF:
0.000272

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Nov 10, 2016
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Inborn genetic diseases Uncertain:1
Mar 24, 2020
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1453_1455delAAG variant (also known as p.K485del) is located in coding exon 9 of the FAM134B gene. This variant results from an in-frame deletion of 3 nucleotides at nucleotide positions 1453 to 1455. This results in an in-frame deletion of a lysine residue at codon 485. This amino acid position is well conserved in available vertebrate species. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

not provided Uncertain:1
Nov 26, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant, c.1453_1455del, results in the deletion of 1 amino acid(s) of the RETREG1 protein (p.Lys485del), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (rs758081460, gnomAD 0.05%). This variant has not been reported in the literature in individuals affected with RETREG1-related conditions. ClinVar contains an entry for this variant (Variation ID: 439686). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
3.2
Mutation Taster
=53/47
polymorphism

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

Publications

Other links and lift over

dbSNP: rs758081460; hg19: chr5-16474888; API