NM_006507.4:c.336C>G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006507.4(REG1B):c.336C>G(p.His112Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,460,484 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: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

REG1B
NM_006507.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.607

Publications

1 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]

REG1B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.054513752).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
REG1B	NM_006507.4 link	c.336C>G	p.His112Gln	missense_variant	Exon 5 of 6	ENST00000305089.8	NP_006498.1	P48304Q6ICS1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
REG1B	ENST00000305089.8 link	c.336C>G	p.His112Gln	missense_variant	Exon 5 of 6	1	NM_006507.4	ENSP00000303206.3	P48304
REG1B	ENST00000479258.5 link	n.1206C>G		non_coding_transcript_exon_variant	Exon 4 of 4	1
REG1B	ENST00000454188.5 link	c.189C>G	p.His63Gln	missense_variant	Exon 3 of 4	3		ENSP00000387410.1	H7BZ24

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000401

AC:

AN:

249600

AF XY:

0.00000742

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

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:

0.00000205

AC:

AN:

1460484

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

726602

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33434

American (AMR)

AF:

0.0000224

AC:

AN:

44610

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26002

East Asian (EAS)

AF:

0.00

AC:

AN:

39682

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86168

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53382

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5560

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111344

Other (OTH)

AF:

0.00

AC:

AN:

60302

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 19, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.336C>G (p.H112Q) alteration is located in exon 5 (coding exon 4) of the REG1B gene. This alteration results from a C to G substitution at nucleotide position 336, causing the histidine (H) at amino acid position 112 to be replaced by a glutamine (Q). 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

0.22

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.64

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.047

.;T

Eigen

Benign

-0.94

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.028

LIST_S2

Benign

0.58

T;T

M_CAP

Benign

0.0029

MetaRNN

Benign

0.055

T;T

MetaSVM

Benign

-0.95

MutationAssessor

Benign

0.38

.;N

PhyloP100

-0.61

PrimateAI

Benign

0.31

PROVEAN

Benign

-0.12

N;N

REVEL

Benign

0.039

Sift

Benign

0.46

T;D

Sift4G

Benign

0.41

T;T

Polyphen

0.21

.;B

Vest4

0.10

MutPred

0.32

.;Loss of disorder (P = 0.1538);

MVP

0.081

MPC

0.019

ClinPred

0.078

GERP RS

-1.7

Varity_R

0.072

gMVP

0.30

Mutation Taster

=97/3

polymorphism

(source)

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

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NM_006507.4:c.336C>G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over