chr4-140399004-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_004362.3(CLGN):​c.731A>G​(p.Asp244Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000248 in 1,613,784 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

CLGN
NM_004362.3 missense

Scores

11
7
1

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 8.01
Variant links:
Genes affected
CLGN (HGNC:2060): (calmegin) Calmegin is a testis-specific endoplasmic reticulum chaperone protein. CLGN may play a role in spermatogeneisis and infertility. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.937

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CLGNNM_004362.3 linkuse as main transcriptc.731A>G p.Asp244Gly missense_variant 8/15 ENST00000325617.10 NP_004353.1
CLGNNM_001130675.2 linkuse as main transcriptc.731A>G p.Asp244Gly missense_variant 9/16 NP_001124147.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CLGNENST00000325617.10 linkuse as main transcriptc.731A>G p.Asp244Gly missense_variant 8/151 NM_004362.3 ENSP00000326699 P1O14967-1
CLGNENST00000414773.5 linkuse as main transcriptc.731A>G p.Asp244Gly missense_variant 9/161 ENSP00000392782 P1O14967-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152176
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000358
AC:
9
AN:
251096
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135726
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000580
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000260
AC:
38
AN:
1461490
Hom.:
0
Cov.:
31
AF XY:
0.0000275
AC XY:
20
AN XY:
727022
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000333
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152294
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000113
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000576
AC:
7
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

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

Submissions by phenotype

Short stature Pathogenic:1
Likely pathogenic, no assertion criteria providedcase-controlInstitute of Human Genetics, FAU Erlangen, Friedrich-Alexander-Universität Erlangen-NürnbergNov 18, 2001- -
not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 28, 2023The c.731A>G (p.D244G) alteration is located in exon 9 (coding exon 7) of the CLGN gene. This alteration results from a A to G substitution at nucleotide position 731, causing the aspartic acid (D) at amino acid position 244 to be replaced by a glycine (G). 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
Pathogenic
0.78
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.35
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.51
D;D
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.75
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.86
D;.
M_CAP
Uncertain
0.26
D
MetaRNN
Pathogenic
0.94
D;D
MetaSVM
Uncertain
0.49
D
MutationAssessor
Pathogenic
3.6
H;H
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.53
T
PROVEAN
Pathogenic
-6.6
D;D
REVEL
Pathogenic
0.82
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.0050
D;D
Polyphen
0.96
D;D
Vest4
0.98
MVP
0.93
MPC
0.56
ClinPred
0.99
D
GERP RS
5.7
Varity_R
0.96
gMVP
0.85

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: rs201306926; hg19: chr4-141320158; API