2-79086832-C-T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_006507.4(REG1B):​c.163G>A​(p.Glu55Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000316 in 1,613,970 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

REG1B
NM_006507.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.149

Publications

0 publications found
Variant links:
Genes affected
REG1B (HGNC:9952): (regenerating family member 1 beta) This gene is a type I subclass member of the Reg gene family. The Reg gene family is a multigene family grouped into four subclasses, types I, II, III and IV based on the primary structures of the encoded proteins. This gene encodes a protein secreted by the exocrine pancreas that is highly similar to the REG1A protein. The related REG1A protein is associated with islet cell regeneration and diabetogenesis, and may be involved in pancreatic lithogenesis. Reg family members REG1A, REGL, PAP and this gene are tandemly clustered on chromosome 2p12 and may have arisen from the same ancestral gene by gene duplication. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.015085787).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
REG1BNM_006507.4 linkc.163G>A p.Glu55Lys missense_variant Exon 3 of 6 ENST00000305089.8 NP_006498.1 P48304Q6ICS1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
REG1BENST00000305089.8 linkc.163G>A p.Glu55Lys missense_variant Exon 3 of 6 1 NM_006507.4 ENSP00000303206.3 P48304
REG1BENST00000476554.1 linkn.268G>A non_coding_transcript_exon_variant Exon 3 of 3 1
REG1BENST00000479258.5 linkn.270G>A non_coding_transcript_exon_variant Exon 3 of 4 1
REG1BENST00000454188.5 linkc.16G>A p.Glu6Lys missense_variant Exon 1 of 4 3 ENSP00000387410.1 H7BZ24

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152042
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000328
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:
0.00
GnomAD2 exomes
AF:
0.000139
AC:
35
AN:
251218
AF XY:
0.0000958
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00101
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000315
AC:
46
AN:
1461810
Hom.:
0
Cov.:
33
AF XY:
0.0000248
AC XY:
18
AN XY:
727218
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00101
AC:
45
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111946
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
4
8
11
15
19
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:
0.0000329
AC:
5
AN:
152160
Hom.:
0
Cov.:
31
AF XY:
0.0000269
AC XY:
2
AN XY:
74392
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41504
American (AMR)
AF:
0.000327
AC:
5
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10594
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000553
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.000132
AC:
16

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Dec 30, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.163G>A (p.E55K) alteration is located in exon 3 (coding exon 2) of the REG1B gene. This alteration results from a G to A substitution at nucleotide position 163, causing the glutamic acid (E) at amino acid position 55 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.61
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
15
DANN
Benign
0.60
DEOGEN2
Benign
0.049
.;T
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.0038
N
LIST_S2
Benign
0.73
T;T
M_CAP
Benign
0.0016
T
MetaRNN
Benign
0.015
T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
-1.7
.;N
PhyloP100
-0.15
PrimateAI
Benign
0.25
T
PROVEAN
Benign
0.91
N;N
REVEL
Benign
0.068
Sift
Benign
1.0
T;T
Sift4G
Benign
0.85
T;T
Polyphen
0.0060
.;B
Vest4
0.12
MutPred
0.55
.;Gain of ubiquitination at E55 (P = 0.0185);
MVP
0.11
MPC
0.027
ClinPred
0.044
T
GERP RS
-5.1
PromoterAI
-0.010
Neutral
Varity_R
0.047
gMVP
0.53
Mutation Taster
=96/4
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: rs772955313; hg19: chr2-79313958; API