18-77250584-C-G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM1BP4_Strong

The NM_001480.4(GALR1):​c.36C>G​(p.Asn12Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000174 in 1,543,906 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N12S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00018 ( 1 hom. )

Consequence

GALR1
NM_001480.4 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.326

Publications

0 publications found
Variant links:
Genes affected
GALR1 (HGNC:4132): (galanin receptor 1) The neuropeptide galanin elicits a range of biological effects by interaction with specific G-protein-coupled receptors. Galanin receptors are seven-transmembrane proteins shown to activate a variety of intracellular second-messenger pathways. GALR1 inhibits adenylyl cyclase via a G protein of the Gi/Go family. GALR1 is widely expressed in the brain and spinal cord, as well as in peripheral sites such as the small intestine and heart. [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 -2 ACMG points.

PM1
In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity GALR1_HUMAN
BP4
Computational evidence support a benign effect (MetaRNN=0.03688571).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GALR1NM_001480.4 linkc.36C>G p.Asn12Lys missense_variant Exon 1 of 3 ENST00000299727.5 NP_001471.2 P47211
GALR1XM_017025691.2 linkc.36C>G p.Asn12Lys missense_variant Exon 1 of 3 XP_016881180.1
LOC124904329XR_007066422.1 linkn.604+264G>C intron_variant Intron 1 of 1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GALR1ENST00000299727.5 linkc.36C>G p.Asn12Lys missense_variant Exon 1 of 3 1 NM_001480.4 ENSP00000299727.3 P47211
ENSG00000309801ENST00000844037.1 linkn.162+264G>C intron_variant Intron 1 of 1
ENSG00000309801ENST00000844038.1 linkn.118+217G>C intron_variant Intron 1 of 1
ENSG00000309801ENST00000844041.1 linkn.159+264G>C intron_variant Intron 1 of 1

Frequencies

GnomAD3 genomes
AF:
0.000151
AC:
23
AN:
152186
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000221
Gnomad OTH
AF:
0.00143
GnomAD2 exomes
AF:
0.000214
AC:
31
AN:
145058
AF XY:
0.000240
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000199
Gnomad ASJ exome
AF:
0.000241
Gnomad EAS exome
AF:
0.0000898
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000346
Gnomad OTH exome
AF:
0.000234
GnomAD4 exome
AF:
0.000176
AC:
245
AN:
1391720
Hom.:
1
Cov.:
37
AF XY:
0.000199
AC XY:
137
AN XY:
687552
show subpopulations
African (AFR)
AF:
0.000126
AC:
4
AN:
31744
American (AMR)
AF:
0.000193
AC:
7
AN:
36294
Ashkenazi Jewish (ASJ)
AF:
0.000278
AC:
7
AN:
25150
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36028
South Asian (SAS)
AF:
0.0000625
AC:
5
AN:
79958
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
37510
Middle Eastern (MID)
AF:
0.00300
AC:
16
AN:
5334
European-Non Finnish (NFE)
AF:
0.000168
AC:
182
AN:
1081670
Other (OTH)
AF:
0.000414
AC:
24
AN:
58032
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.509
Heterozygous variant carriers
0
17
34
52
69
86
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000151
AC:
23
AN:
152186
Hom.:
0
Cov.:
34
AF XY:
0.0000942
AC XY:
7
AN XY:
74342
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41458
American (AMR)
AF:
0.000131
AC:
2
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.000576
AC:
2
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5156
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000221
AC:
15
AN:
68024
Other (OTH)
AF:
0.00143
AC:
3
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.538
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.000217
Hom.:
0
Bravo
AF:
0.000140
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.000126
AC:
14

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Oct 05, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.36C>G (p.N12K) alteration is located in exon 1 (coding exon 1) of the GALR1 gene. This alteration results from a C to G substitution at nucleotide position 36, causing the asparagine (N) at amino acid position 12 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
Uncertain
0.48
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
17
DANN
Uncertain
0.98
DEOGEN2
Benign
0.14
T
Eigen
Benign
-0.37
Eigen_PC
Benign
-0.39
FATHMM_MKL
Benign
0.21
N
LIST_S2
Benign
0.51
T
M_CAP
Benign
0.033
D
MetaRNN
Benign
0.037
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Uncertain
2.0
M
PhyloP100
0.33
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.058
Sift
Benign
0.076
T
Sift4G
Benign
0.45
T
Polyphen
0.59
P
Vest4
0.58
MutPred
0.34
Gain of ubiquitination at N12 (P = 0.0025);
MVP
0.81
MPC
1.4
ClinPred
0.041
T
GERP RS
1.6
Varity_R
0.088
gMVP
0.56
Mutation Taster
=92/8
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: rs755295011; hg19: chr18-74962540; API