chr12-71535175-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003667.4(LGR5):​c.417C>A​(p.Ser139Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000137 in 1,602,002 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

LGR5
NM_003667.4 missense

Scores

9
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.151
Variant links:
Genes affected
LGR5 (HGNC:4504): (leucine rich repeat containing G protein-coupled receptor 5) The protein encoded by this gene is a leucine-rich repeat-containing receptor (LGR) and member of the G protein-coupled, 7-transmembrane receptor (GPCR) superfamily. The encoded protein is a receptor for R-spondins and is involved in the canonical Wnt signaling pathway. This protein plays a role in the formation and maintenance of adult intestinal stem cells during postembryonic development. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2015]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LGR5NM_003667.4 linkuse as main transcriptc.417C>A p.Ser139Arg missense_variant 4/18 ENST00000266674.10
LOC105369833XR_001749200.2 linkuse as main transcriptn.119-1119G>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LGR5ENST00000266674.10 linkuse as main transcriptc.417C>A p.Ser139Arg missense_variant 4/181 NM_003667.4 P1O75473-1
LGR5ENST00000540815.2 linkuse as main transcriptc.417C>A p.Ser139Arg missense_variant 4/171 O75473-2
LGR5ENST00000536515.5 linkuse as main transcriptc.417C>A p.Ser139Arg missense_variant 4/171 O75473-3
LGR5ENST00000550851.5 linkuse as main transcriptn.514C>A non_coding_transcript_exon_variant 4/202

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152160
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250772
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135584
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000131
AC:
19
AN:
1449842
Hom.:
0
Cov.:
26
AF XY:
0.0000166
AC XY:
12
AN XY:
722180
show subpopulations
Gnomad4 AFR exome
AF:
0.0000301
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000145
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152160
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74326
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000225
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsFeb 02, 2024The c.417C>A (p.S139R) alteration is located in exon 4 (coding exon 4) of the LGR5 gene. This alteration results from a C to A substitution at nucleotide position 417, causing the serine (S) at amino acid position 139 to be replaced by an arginine (R). 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
Uncertain
0.52
BayesDel_addAF
Benign
-0.041
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T;.;.
Eigen
Uncertain
0.36
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Uncertain
0.89
D;T;T
M_CAP
Benign
0.030
D
MetaRNN
Uncertain
0.59
D;D;D
MetaSVM
Benign
-0.55
T
MutationAssessor
Benign
0.95
L;L;L
MutationTaster
Benign
0.89
D;D;N
PrimateAI
Uncertain
0.56
T
PROVEAN
Uncertain
-2.6
D;D;D
REVEL
Benign
0.18
Sift
Benign
0.19
T;T;T
Sift4G
Benign
0.13
T;D;T
Polyphen
0.99
D;.;D
Vest4
0.60
MutPred
0.48
Gain of catalytic residue at S139 (P = 0.0214);Gain of catalytic residue at S139 (P = 0.0214);Gain of catalytic residue at S139 (P = 0.0214);
MVP
0.84
MPC
0.22
ClinPred
0.93
D
GERP RS
3.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.60
gMVP
0.48

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

LitVar

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

Other links and lift over

dbSNP: rs779090996; hg19: chr12-71928955; COSMIC: COSV99877561; API