18-48757996-G-A
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_014772.3(CTIF):c.662G>A(p.Arg221Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000328 in 1,613,888 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 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000035 ( 0 hom. )
Consequence
CTIF
NM_014772.3 missense
NM_014772.3 missense
Scores
4
14
Clinical Significance
Conservation
PhyloP100: 5.45
Genes affected
CTIF (HGNC:23925): (cap binding complex dependent translation initiation factor) CTIF is a component of the CBP80 (NCBP1; MIM 600469)/CBP20 (NCBP2; MIM 605133) translation initiation complex that binds cotranscriptionally to the cap end of nascent mRNA. The CBP80/CBP20 complex is involved in a simultaneous editing and translation step that recognizes premature termination codons (PTCs) in mRNAs and directs PTC-containing mRNAs toward nonsense-mediated decay (NMD). On mRNAs without PTCs, the CBP80/CBP20 complex is replaced with cytoplasmic mRNA cap-binding proteins, including EIF4G (MIM 600495), and steady-state translation of the mRNAs resumes in the cytoplasm (Kim et al., 2009 [PubMed 19648179]).[supplied by OMIM, Dec 2009]
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=0.13454232).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CTIF | NM_014772.3 | c.662G>A | p.Arg221Lys | missense_variant | 8/12 | ENST00000256413.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CTIF | ENST00000256413.8 | c.662G>A | p.Arg221Lys | missense_variant | 8/12 | 1 | NM_014772.3 | A1 | |
CTIF | ENST00000382998.8 | c.662G>A | p.Arg221Lys | missense_variant | 9/13 | 1 | P3 | ||
CTIF | ENST00000587769.1 | n.314G>A | non_coding_transcript_exon_variant | 3/3 | 4 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152142Hom.: 0 Cov.: 32
GnomAD3 genomes
?
AF:
AC:
2
AN:
152142
Hom.:
Cov.:
32
Gnomad AFR
AF:
Gnomad AMI
AF:
Gnomad AMR
AF:
Gnomad ASJ
AF:
Gnomad EAS
AF:
Gnomad SAS
AF:
Gnomad FIN
AF:
Gnomad MID
AF:
Gnomad NFE
AF:
Gnomad OTH
AF:
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 251186Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135814
GnomAD3 exomes
AF:
AC:
4
AN:
251186
Hom.:
AF XY:
AC XY:
2
AN XY:
135814
Gnomad AFR exome
AF:
Gnomad AMR exome
AF:
Gnomad ASJ exome
AF:
Gnomad EAS exome
AF:
Gnomad SAS exome
AF:
Gnomad FIN exome
AF:
Gnomad NFE exome
AF:
Gnomad OTH exome
AF:
GnomAD4 exome AF: 0.0000349 AC: 51AN: 1461746Hom.: 0 Cov.: 32 AF XY: 0.0000399 AC XY: 29AN XY: 727176
GnomAD4 exome
AF:
AC:
51
AN:
1461746
Hom.:
Cov.:
32
AF XY:
AC XY:
29
AN XY:
727176
Gnomad4 AFR exome
AF:
Gnomad4 AMR exome
AF:
Gnomad4 ASJ exome
AF:
Gnomad4 EAS exome
AF:
Gnomad4 SAS exome
AF:
Gnomad4 FIN exome
AF:
Gnomad4 NFE exome
AF:
Gnomad4 OTH exome
AF:
GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152142Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74314
GnomAD4 genome
?
AF:
AC:
2
AN:
152142
Hom.:
Cov.:
32
AF XY:
AC XY:
0
AN XY:
74314
Gnomad4 AFR
AF:
Gnomad4 AMR
AF:
Gnomad4 ASJ
AF:
Gnomad4 EAS
AF:
Gnomad4 SAS
AF:
Gnomad4 FIN
AF:
Gnomad4 NFE
AF:
Gnomad4 OTH
AF:
Alfa
AF:
Hom.:
Bravo
AF:
ESP6500AA
AF:
AC:
0
ESP6500EA
AF:
AC:
1
ExAC
?
AF:
AC:
2
EpiCase
AF:
EpiControl
AF:
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 submitter | clinical testing | Ambry Genetics | Aug 28, 2023 | The c.662G>A (p.R221K) alteration is located in exon 9 (coding exon 7) of the CTIF gene. This alteration results from a G to A substitution at nucleotide position 662, causing the arginine (R) at amino acid position 221 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
Cadd
Uncertain
Dann
Uncertain
DEOGEN2
Benign
T;.
Eigen
Benign
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
M_CAP
Benign
T
MetaRNN
Benign
T;T
MetaSVM
Benign
T
MutationAssessor
Benign
N;N
MutationTaster
Benign
N;N
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N
REVEL
Benign
Sift
Benign
T;T
Sift4G
Benign
T;T
Polyphen
B;B
Vest4
MVP
MPC
0.16
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at