rs544073469

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_001330.5(CTF1):​c.55C>A​(p.Leu19Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000049 in 1,613,670 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000045 ( 1 hom. )

Consequence

CTF1
NM_001330.5 missense

Scores

1
18

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.109
Variant links:
Genes affected
CTF1 (HGNC:2499): (cardiotrophin 1) The protein encoded by this gene is a secreted cytokine that induces cardiac myocyte hypertrophy in vitro. It has been shown to bind and activate the ILST/gp130 receoptor. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.013361663).
BP6
Variant 16-30899444-C-A is Benign according to our data. Variant chr16-30899444-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 701490.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CTF1NM_001330.5 linkc.55C>A p.Leu19Ile missense_variant Exon 2 of 3 ENST00000279804.3 NP_001321.1 Q16619-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CTF1ENST00000279804.3 linkc.55C>A p.Leu19Ile missense_variant Exon 2 of 3 1 NM_001330.5 ENSP00000279804.2 Q16619-1
CTF1ENST00000395019.3 linkc.52C>A p.Leu18Ile missense_variant Exon 2 of 3 1 ENSP00000378465.3 Q16619-2

Frequencies

GnomAD3 genomes
AF:
0.0000855
AC:
13
AN:
152026
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:
0.00232
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000155
AC:
39
AN:
251130
Hom.:
0
AF XY:
0.000155
AC XY:
21
AN XY:
135776
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00212
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000452
AC:
66
AN:
1461526
Hom.:
1
Cov.:
32
AF XY:
0.0000481
AC XY:
35
AN XY:
727092
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00111
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.000315
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152144
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74382
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00232
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000680
Hom.:
0
Bravo
AF:
0.000144
ExAC
AF:
0.000132
AC:
16
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Jan 21, 2019
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: CTF1 c.55C>A (p.Leu19Ile) results in a conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00015 in 276860 control chromosomes, predominantly at a frequency of 0.0022 within the East Asian subpopulation in the gnomAD database. The observed variant frequency within East Asian control individuals in the gnomAD database is approximately 88 fold of the estimated maximal expected allele frequency for a pathogenic variant in CTF1 causing Cardiomyopathy phenotype (2.5e-05), strongly suggesting that the variant is a benign polymorphism found primarily in populations of East Asian origin. To our knowledge, no occurrence of c.55C>A in individuals affected with Cardiomyopathy and no experimental evidence demonstrating its impact on protein function have been reported. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014. Based on the evidence outlined above, the variant was classified as likely benign. -

Dilated Cardiomyopathy, Dominant Benign:1
Oct 16, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
15
DANN
Benign
0.94
DEOGEN2
Benign
0.27
T;.
Eigen
Benign
-0.51
Eigen_PC
Benign
-0.37
FATHMM_MKL
Benign
0.68
D
LIST_S2
Benign
0.61
T;T
M_CAP
Benign
0.024
T
MetaRNN
Benign
0.013
T;T
MetaSVM
Benign
-0.81
T
MutationAssessor
Benign
0.69
N;.
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.43
N;N
REVEL
Uncertain
0.33
Sift
Benign
0.37
T;T
Sift4G
Benign
0.41
T;T
Polyphen
0.078
B;.
Vest4
0.14
MutPred
0.18
Loss of catalytic residue at L19 (P = 0.0397);.;
MVP
0.67
MPC
0.48
ClinPred
0.014
T
GERP RS
0.034
Varity_R
0.046
gMVP
0.091

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs544073469; hg19: chr16-30910765; API