18-48758146-C-T
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_014772.3(CTIF):c.812C>T(p.Ala271Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000867 in 1,613,922 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )
Consequence
CTIF
NM_014772.3 missense
NM_014772.3 missense
Scores
1
3
14
Clinical Significance
Conservation
PhyloP100: 4.64
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]
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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=0.17534244).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CTIF | NM_014772.3 | c.812C>T | p.Ala271Val | missense_variant | 8/12 | ENST00000256413.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CTIF | ENST00000256413.8 | c.812C>T | p.Ala271Val | missense_variant | 8/12 | 1 | NM_014772.3 | A1 | |
CTIF | ENST00000382998.8 | c.812C>T | p.Ala271Val | missense_variant | 9/13 | 1 | P3 | ||
CTIF | ENST00000587769.1 | n.464C>T | non_coding_transcript_exon_variant | 3/3 | 4 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152096Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000319 AC: 8AN: 250986Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135692
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GnomAD4 exome AF: 0.00000889 AC: 13AN: 1461826Hom.: 0 Cov.: 32 AF XY: 0.00000688 AC XY: 5AN XY: 727202
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GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152096Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74300
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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 | Sep 16, 2021 | The c.812C>T (p.A271V) alteration is located in exon 9 (coding exon 7) of the CTIF gene. This alteration results from a C to T substitution at nucleotide position 812, causing the alanine (A) at amino acid position 271 to be replaced by a valine (V). 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
Benign
Dann
Uncertain
DEOGEN2
Benign
T;.
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Pathogenic
D
M_CAP
Benign
T
MetaRNN
Benign
T;T
MetaSVM
Benign
T
MutationAssessor
Benign
L;L
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N
REVEL
Benign
Sift
Uncertain
D;D
Sift4G
Benign
T;T
Polyphen
B;B
Vest4
MutPred
Gain of catalytic residue at A271 (P = 0.0296);Gain of catalytic residue at A271 (P = 0.0296);
MVP
MPC
0.18
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at