chr12-71556676-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_003667.4(LGR5):ā€‹c.702C>Gā€‹(p.His234Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,210 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)

Consequence

LGR5
NM_003667.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.55
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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.31802475).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LGR5NM_003667.4 linkuse as main transcriptc.702C>G p.His234Gln missense_variant 6/18 ENST00000266674.10 NP_003658.1
LOC105369833XR_001749200.2 linkuse as main transcriptn.118+14957G>C intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LGR5ENST00000266674.10 linkuse as main transcriptc.702C>G p.His234Gln missense_variant 6/181 NM_003667.4 ENSP00000266674 P1O75473-1
LGR5ENST00000540815.2 linkuse as main transcriptc.702C>G p.His234Gln missense_variant 6/171 ENSP00000441035 O75473-2
LGR5ENST00000536515.5 linkuse as main transcriptc.486C>G p.His162Gln missense_variant 5/171 ENSP00000443033 O75473-3
LGR5ENST00000550851.5 linkuse as main transcriptn.799C>G non_coding_transcript_exon_variant 6/202

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152210
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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
GnomAD4 exome
Cov.:
28
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

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 GeneticsJun 19, 2024The c.702C>G (p.H234Q) alteration is located in exon 6 (coding exon 6) of the LGR5 gene. This alteration results from a C to G substitution at nucleotide position 702, causing the histidine (H) at amino acid position 234 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
0.11
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
20
DANN
Benign
0.95
DEOGEN2
Benign
0.16
T;.;.
Eigen
Benign
-0.22
Eigen_PC
Benign
-0.0093
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.59
T;T;T
M_CAP
Benign
0.0093
T
MetaRNN
Benign
0.32
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.46
N;.;N
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.65
T
PROVEAN
Uncertain
-3.9
D;D;D
REVEL
Benign
0.11
Sift
Benign
0.22
T;T;T
Sift4G
Benign
0.31
T;T;T
Polyphen
0.60
P;.;B
Vest4
0.30
MutPred
0.32
Gain of catalytic residue at F230 (P = 0.0688);.;Gain of catalytic residue at F230 (P = 0.0688);
MVP
0.72
MPC
0.34
ClinPred
0.91
D
GERP RS
4.7
Varity_R
0.68
gMVP
0.25

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: rs140637499; hg19: chr12-71950456; API