17-81809026-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000160.5(GCGR):​c.8C>T​(p.Pro3Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000521 in 1,535,966 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

GCGR
NM_000160.5 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.67
Variant links:
Genes affected
GCGR (HGNC:4192): (glucagon receptor) The protein encoded by this gene is a glucagon receptor that is important in controlling blood glucose levels. Defects in this gene are a cause of non-insulin-dependent diabetes mellitus (NIDDM).[provided by RefSeq, Jan 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.060108244).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GCGRNM_000160.5 linkuse as main transcriptc.8C>T p.Pro3Leu missense_variant 2/14 ENST00000400723.8 NP_000151.1 P47871
GCGRXM_006722277.2 linkuse as main transcriptc.8C>T p.Pro3Leu missense_variant 2/14 XP_006722340.1 P47871
GCGRXM_017024446.2 linkuse as main transcriptc.8C>T p.Pro3Leu missense_variant 2/14 XP_016879935.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GCGRENST00000400723.8 linkuse as main transcriptc.8C>T p.Pro3Leu missense_variant 2/141 NM_000160.5 ENSP00000383558.3 P47871
GCGRENST00000572185.1 linkuse as main transcriptn.303C>T non_coding_transcript_exon_variant 2/31
GCGRENST00000570996.5 linkuse as main transcriptc.8C>T p.Pro3Leu missense_variant 2/122 ENSP00000460976.1 I3L454
GCGRENST00000573428.1 linkuse as main transcriptc.8C>T p.Pro3Leu missense_variant 2/44 ENSP00000458930.1 I3L1L8

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152250
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000724
AC:
1
AN:
138198
Hom.:
0
AF XY:
0.0000135
AC XY:
1
AN XY:
74106
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000182
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000361
AC:
5
AN:
1383716
Hom.:
0
Cov.:
32
AF XY:
0.00000439
AC XY:
3
AN XY:
682780
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000463
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152250
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 10, 2022The c.8C>T (p.P3L) alteration is located in exon 2 (coding exon 1) of the GCGR gene. This alteration results from a C to T substitution at nucleotide position 8, causing the proline (P) at amino acid position 3 to be replaced by a leucine (L). 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
0.080
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
2.6
DANN
Benign
0.69
DEOGEN2
Benign
0.045
T;.;.
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.029
N
LIST_S2
Benign
0.42
T;T;T
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.060
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.23
N;.;.
PrimateAI
Benign
0.48
T
PROVEAN
Benign
0.030
N;.;.
REVEL
Benign
0.029
Sift
Benign
0.13
T;.;.
Sift4G
Benign
0.46
T;T;T
Polyphen
0.0
B;.;.
Vest4
0.077
MutPred
0.33
Gain of stability (P = 0.0053);Gain of stability (P = 0.0053);Gain of stability (P = 0.0053);
MVP
0.52
MPC
0.0026
ClinPred
0.023
T
GERP RS
-0.69
Varity_R
0.030
gMVP
0.36

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1050897506; hg19: chr17-79766902; API