rs201246220

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_138425.4(C12orf57):​c.37G>A​(p.Ala13Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000196 in 1,614,222 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00021 ( 0 hom. )

Consequence

C12orf57
NM_138425.4 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.47
Variant links:
Genes affected
C12orf57 (HGNC:29521): (chromosome 12 open reading frame 57) This gene is ubiquitously expressed in human tissues. It is required for development of the human corpus callosum. Mutations in this gene are associated with Temtamy syndrome (TEMTYS). Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Sep 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.22601861).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
C12orf57NM_138425.4 linkuse as main transcriptc.37G>A p.Ala13Thr missense_variant 1/3 ENST00000229281.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
C12orf57ENST00000229281.6 linkuse as main transcriptc.37G>A p.Ala13Thr missense_variant 1/31 NM_138425.4 P1
ENST00000607421.2 linkuse as main transcriptn.473C>T non_coding_transcript_exon_variant 1/1

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152242
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000191
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000795
AC:
20
AN:
251446
Hom.:
0
AF XY:
0.0000883
AC XY:
12
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.000167
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000207
AC:
303
AN:
1461862
Hom.:
0
Cov.:
33
AF XY:
0.000191
AC XY:
139
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000267
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000919
AC:
14
AN:
152360
Hom.:
0
Cov.:
34
AF XY:
0.0000671
AC XY:
5
AN XY:
74512
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000191
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000173
Hom.:
0
Bravo
AF:
0.000121
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.000164
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Temtamy syndrome Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 31, 2018- -
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 01, 2022This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 13 of the C12orf57 protein (p.Ala13Thr). This variant is present in population databases (rs201246220, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with C12orf57-related conditions. ClinVar contains an entry for this variant (Variation ID: 575714). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.053
T
BayesDel_noAF
Uncertain
-0.050
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.25
T;T;T;T
Eigen
Benign
0.15
Eigen_PC
Benign
0.14
FATHMM_MKL
Benign
0.70
D
LIST_S2
Benign
0.71
.;T;T;T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.23
T;T;T;T
MetaSVM
Benign
-0.52
T
MutationAssessor
Benign
1.7
L;.;.;L
MutationTaster
Benign
0.96
D;D
PROVEAN
Benign
-1.3
N;.;N;N
REVEL
Uncertain
0.35
Sift
Benign
0.18
T;.;T;T
Sift4G
Benign
0.28
T;T;T;T
Polyphen
0.95
P;.;.;P
Vest4
0.54, 0.54, 0.53
MVP
0.89
MPC
0.15
ClinPred
0.34
T
GERP RS
3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.13
gMVP
0.39

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs201246220; hg19: chr12-7053321; API