rs61749643

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 1P and 6B. PP5BP4BS1_SupportingBS2

The NM_015465.5(GEMIN5):​c.3046C>T​(p.Arg1016Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00704 in 1,611,648 control chromosomes in the GnomAD database, including 58 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0045 ( 2 hom., cov: 32)
Exomes 𝑓: 0.0073 ( 56 hom. )

Consequence

GEMIN5
NM_015465.5 missense

Scores

2
8
9

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:2

Conservation

PhyloP100: 6.14
Variant links:
Genes affected
GEMIN5 (HGNC:20043): (gem nuclear organelle associated protein 5) This gene encodes a WD repeat protein that is a component of the survival of motor neurons (SMN) complex. The SMN complex plays a critical role in mRNA splicing through the assembly of spliceosomal small nuclear ribonucleoproteins (snRNPs), and may also mediate the assembly and transport of other classes of ribonucleoproteins. The encoded protein is the snRNA-binding component of the SMN complex. Dysregulation of this gene may play a role in alternative mRNA splicing and tumor cell motility. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PP5
Variant 5-154899279-G-A is Pathogenic according to our data. Variant chr5-154899279-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 562188.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=2, Likely_pathogenic=2}.
BP4
Computational evidence support a benign effect (MetaRNN=0.01176995). . Strength limited to SUPPORTING due to the PP5.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00454 (692/152298) while in subpopulation NFE AF = 0.00722 (491/68022). AF 95% confidence interval is 0.00669. There are 2 homozygotes in GnomAd4. There are 314 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position FAILED quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GEMIN5NM_015465.5 linkc.3046C>T p.Arg1016Cys missense_variant Exon 22 of 28 ENST00000285873.8 NP_056280.2
GEMIN5NM_001252156.2 linkc.3043C>T p.Arg1015Cys missense_variant Exon 22 of 28 NP_001239085.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GEMIN5ENST00000285873.8 linkc.3046C>T p.Arg1016Cys missense_variant Exon 22 of 28 1 NM_015465.5 ENSP00000285873.6 Q8TEQ6

Frequencies

GnomAD3 genomes
AF:
0.00454
AC:
691
AN:
152180
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00208
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00556
Gnomad ASJ
AF:
0.00173
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00186
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00722
Gnomad OTH
AF:
0.00574
GnomAD2 exomes
AF:
0.00460
AC:
1149
AN:
249516
AF XY:
0.00463
show subpopulations
Gnomad AFR exome
AF:
0.00216
Gnomad AMR exome
AF:
0.00433
Gnomad ASJ exome
AF:
0.00280
Gnomad EAS exome
AF:
0.0000548
Gnomad FIN exome
AF:
0.000324
Gnomad NFE exome
AF:
0.00737
Gnomad OTH exome
AF:
0.00542
GnomAD4 exome
AF:
0.00730
AC:
10654
AN:
1459350
Hom.:
56
Cov.:
30
AF XY:
0.00709
AC XY:
5144
AN XY:
725854
show subpopulations
Gnomad4 AFR exome
AF:
0.00153
AC:
51
AN:
33418
Gnomad4 AMR exome
AF:
0.00457
AC:
203
AN:
44442
Gnomad4 ASJ exome
AF:
0.00211
AC:
55
AN:
26082
Gnomad4 EAS exome
AF:
0.0000253
AC:
1
AN:
39604
Gnomad4 SAS exome
AF:
0.00199
AC:
170
AN:
85548
Gnomad4 FIN exome
AF:
0.000524
AC:
28
AN:
53400
Gnomad4 NFE exome
AF:
0.00878
AC:
9750
AN:
1110792
Gnomad4 Remaining exome
AF:
0.00610
AC:
368
AN:
60300
Heterozygous variant carriers
0
506
1011
1517
2022
2528
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Exome Het
Exome Hom
Variant carriers
0
402
804
1206
1608
2010
<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:
0.00454
AC:
692
AN:
152298
Hom.:
2
Cov.:
32
AF XY:
0.00422
AC XY:
314
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.00207
AC:
0.0020695
AN:
0.0020695
Gnomad4 AMR
AF:
0.00555
AC:
0.00555483
AN:
0.00555483
Gnomad4 ASJ
AF:
0.00173
AC:
0.00172811
AN:
0.00172811
Gnomad4 EAS
AF:
0.000193
AC:
0.00019305
AN:
0.00019305
Gnomad4 SAS
AF:
0.00207
AC:
0.00207125
AN:
0.00207125
Gnomad4 FIN
AF:
0.0000942
AC:
0.0000941797
AN:
0.0000941797
Gnomad4 NFE
AF:
0.00722
AC:
0.00721825
AN:
0.00721825
Gnomad4 OTH
AF:
0.00568
AC:
0.00567644
AN:
0.00567644
Heterozygous variant carriers
0
30
60
91
121
151
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00600
Hom.:
1
Bravo
AF:
0.00505
TwinsUK
AF:
0.00620
AC:
23
ALSPAC
AF:
0.00960
AC:
37
ESP6500AA
AF:
0.00159
AC:
7
ESP6500EA
AF:
0.00860
AC:
74
ExAC
AF:
0.00453
AC:
550
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00635
EpiControl
AF:
0.00764

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:2Uncertain:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Pathogenic:2Uncertain:1
Apr 12, 2024
GeneDx
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Published functional studies demonstrated reduced dimerization and ribosome association compared to wildtype (PMID: 35393353); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 35295849, 35393353, 36980979, 16677673, 38316953) -

Mar 08, 2018
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

GEMIN5: PM3:Strong, PM1, PM2:Supporting, PS3:Supporting, BP4 -

not specified Uncertain:1
May 09, 2025
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: GEMIN5 c.3046C>T (p.Arg1016Cys) results in a non-conservative amino acid change in the encoded protein sequence. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change. The variant allele was found at a frequency of 0.0046 in 249516 control chromosomes in the gnomAD database, including 5 homozygotes. The observed variant frequency exceeds the estimated maximal expected allele frequency for a pathogenic variant in GEMIN5 causing GEMIN5-Related Disorder phenotype. c.3046C>T has been observed in multiple compound heterozygous individuals affected with GEMIN5-Related Disorder (Rajan_2022, Francisco-Velilla_2022, Cascajo-Almenara_2024). These data indicate that the variant is likely to be associated with disease. At least one publication reports experimental evidence evaluating an impact on protein function. The most pronounced variant effect results in 30%-<50% of normal activity (Francisco-Velilla_2022). ClinVar contains an entry for this variant (Variation ID: 562188). Based on the evidence outlined above, the variant was classified as VUS-possibly pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.21
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.15
T
Eigen
Uncertain
0.51
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
D
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.012
T
MetaSVM
Benign
-0.36
T
MutationAssessor
Benign
1.1
L
PrimateAI
Benign
0.38
T
PROVEAN
Uncertain
-2.7
D
REVEL
Uncertain
0.40
Sift
Uncertain
0.013
D
Sift4G
Uncertain
0.015
D
Polyphen
1.0
D
Vest4
0.60
MVP
0.79
MPC
0.45
ClinPred
0.024
T
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.35
gMVP
0.40
Mutation Taster
=87/13
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

LitVar

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

Other links and lift over

dbSNP: rs61749643; hg19: chr5-154278839; API