3-155775785-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001308229.2(C3orf33):​c.238C>T​(p.Arg80Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000539 in 1,595,090 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

C3orf33
NM_001308229.2 missense

Scores

4
6
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.96
Variant links:
Genes affected
C3orf33 (HGNC:26434): (chromosome 3 open reading frame 33) Involved in negative regulation of ERK1 and ERK2 cascade and regulation of DNA-binding transcription factor activity. Located in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
C3orf33NM_001308229.2 linkuse as main transcriptc.238C>T p.Arg80Cys missense_variant 3/5 ENST00000340171.7 NP_001295158.1
C3orf33NM_173657.3 linkuse as main transcriptc.109C>T p.Arg37Cys missense_variant 4/6 NP_775928.1
C3orf33XM_011512710.3 linkuse as main transcriptc.178C>T p.Arg60Cys missense_variant 2/4 XP_011511012.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
C3orf33ENST00000340171.7 linkuse as main transcriptc.238C>T p.Arg80Cys missense_variant 3/51 NM_001308229.2 ENSP00000342512 P3Q6P1S2-1

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152082
Hom.:
0
Cov.:
32
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000378
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000101
AC:
25
AN:
247288
Hom.:
0
AF XY:
0.000104
AC XY:
14
AN XY:
134234
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000295
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000133
Gnomad FIN exome
AF:
0.000232
Gnomad NFE exome
AF:
0.000124
Gnomad OTH exome
AF:
0.000167
GnomAD4 exome
AF:
0.0000534
AC:
77
AN:
1443008
Hom.:
0
Cov.:
27
AF XY:
0.0000543
AC XY:
39
AN XY:
718856
show subpopulations
Gnomad4 AFR exome
AF:
0.0000303
Gnomad4 AMR exome
AF:
0.0000226
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000821
Gnomad4 FIN exome
AF:
0.000281
Gnomad4 NFE exome
AF:
0.0000429
Gnomad4 OTH exome
AF:
0.000101
GnomAD4 genome
AF:
0.0000592
AC:
9
AN:
152082
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74310
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000378
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000494
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000994
AC:
12
Asia WGS
AF:
0.000289
AC:
1
AN:
3472
EpiCase
AF:
0.00
EpiControl
AF:
0.000357

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 GeneticsSep 16, 2021The c.109C>T (p.R37C) alteration is located in exon 4 (coding exon 2) of the C3orf33 gene. This alteration results from a C to T substitution at nucleotide position 109, causing the arginine (R) at amino acid position 37 to be replaced by a cysteine (C). 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
0.34
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.26
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.19
T;.
Eigen
Uncertain
0.46
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Uncertain
0.93
D;D
M_CAP
Benign
0.043
D
MetaRNN
Uncertain
0.47
T;T
MetaSVM
Benign
-0.71
T
MutationAssessor
Uncertain
2.8
M;.
MutationTaster
Benign
1.0
D;D
PROVEAN
Pathogenic
-6.5
D;D
REVEL
Benign
0.26
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
0.99
D;.
Vest4
0.64
MutPred
0.50
Loss of methylation at R80 (P = 0.0204);.;
MVP
0.66
MPC
0.75
ClinPred
0.65
D
GERP RS
3.5
Varity_R
0.68
gMVP
0.86

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: rs755821715; hg19: chr3-155493574; API