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GeneBe

chr2-69830123-G-C

Variant summary

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

The NM_178439.5(GMCL1):ā€‹c.231G>Cā€‹(p.Glu77Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000444 in 1,575,120 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000026 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

GMCL1
NM_178439.5 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.93
Variant links:
Genes affected
GMCL1 (HGNC:23843): (germ cell-less 1, spermatogenesis associated) This gene encodes a nuclear envelope protein that appears to be involved in spermatogenesis, either directly or by influencing genes that play a more direct role in the process. This multi-exon locus is the homolog of the mouse and drosophila germ cell-less gene but the human genome also contains a single-exon locus on chromosome 5 that contains an open reading frame capable of encoding a highly-related protein. [provided by RefSeq, Jul 2008]

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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=0.04045549).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GMCL1NM_178439.5 linkuse as main transcriptc.231G>C p.Glu77Asp missense_variant 1/14 ENST00000282570.4
GMCL1XM_011533033.3 linkuse as main transcriptc.231G>C p.Glu77Asp missense_variant 1/13
GMCL1XR_007079574.1 linkuse as main transcriptn.464G>C non_coding_transcript_exon_variant 1/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GMCL1ENST00000282570.4 linkuse as main transcriptc.231G>C p.Glu77Asp missense_variant 1/141 NM_178439.5 P1
GMCL1ENST00000468386.2 linkuse as main transcriptn.438G>C non_coding_transcript_exon_variant 1/45

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152238
Hom.:
0
Cov.:
33
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:
0.000771
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
AF:
0.00000211
AC:
3
AN:
1422882
Hom.:
0
Cov.:
31
AF XY:
0.00000426
AC XY:
3
AN XY:
703808
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000526
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000169
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152238
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74378
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000771
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ExAC
AF:
0.0000252
AC:
3

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 GeneticsMay 24, 2023The c.231G>C (p.E77D) alteration is located in exon 1 (coding exon 1) of the GMCL1 gene. This alteration results from a G to C substitution at nucleotide position 231, causing the glutamic acid (E) at amino acid position 77 to be replaced by an aspartic acid (D). 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
0.086
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.52
CADD
Benign
19
DANN
Uncertain
0.98
DEOGEN2
Benign
0.076
T
Eigen
Benign
-0.28
Eigen_PC
Benign
-0.044
FATHMM_MKL
Benign
0.55
D
LIST_S2
Benign
0.56
T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.040
T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
0.99
D
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-0.070
N
REVEL
Benign
0.055
Sift
Benign
0.57
T
Sift4G
Benign
0.66
T
Polyphen
0.0
B
Vest4
0.18
MutPred
0.22
Gain of helix (P = 0.1736);
MVP
0.64
MPC
0.36
ClinPred
0.31
T
GERP RS
4.7
Varity_R
0.18
gMVP
0.19

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: rs771755165; hg19: chr2-70057255; API