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CTIF
HPA
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PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

CTIF
Synonyms KIAA0427
Gene descriptioni

Full gene name according to HGNC.

Cap binding complex dependent translation initiation factor
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Transporters
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 18
Cytoband q21.1
Chromosome location (bp) 48539031 - 48863217
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

6
Ensembl ENSG00000134030 (version 109)
Entrez gene 9811
HGNC HGNC:23925
UniProt O43310 (UniProt - Evidence at protein level)
neXtProt NX_O43310
GeneCards CTIF
Antibodypedia CTIF antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Specifically required for the pioneer round of mRNA translation mediated by the cap-binding complex (CBC), that takes place during or right after mRNA export via the nuclear pore complex (NPC). Acts via its interaction with the NCBP1/CBP80 component of the CBC complex and recruits the 40S small subunit of the ribosome via eIF3. In contrast, it is not involved in steady state translation, that takes place when the CBC complex is replaced by cytoplasmic cap-binding protein eIF4E. Also required for nonsense-mediated mRNA decay (NMD), the pioneer round of mRNA translation mediated by the cap-binding complex playing a central role in nonsense-mediated mRNA decay (NMD).... show less
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Nonsense-mediated mRNA decay, Translation regulation
Gene summary (Entrez)i

Useful information about the gene from Entrez

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).[supplied by OMIM, Dec 2009]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
CTIF-201
ENSP00000256413
ENST00000256413
O43310
[Direct mapping] CBP80/20-dependent translation initiation factor
Show all
A0A024R259
[Target identity:100%; Query identity:100%] KIAA0427, isoform CRA_a
Show all
Transporters
   Transporter channels and pores
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000184 [nuclear-transcribed mRNA catabolic process, nonsense-mediated decay]
GO:0003723 [RNA binding]
GO:0005515 [protein binding]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006417 [regulation of translation]
GO:0006446 [regulation of translational initiation]
GO:0008494 [translation activator activity]
GO:0045727 [positive regulation of translation]
GO:0048471 [perinuclear region of cytoplasm]
Show all
598 aa
67.6 kDa
No 0
CTIF-202
ENSP00000372459
ENST00000382998
O43310
[Direct mapping] CBP80/20-dependent translation initiation factor
Show all
Transporters
   Transporter channels and pores
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000184 [nuclear-transcribed mRNA catabolic process, nonsense-mediated decay]
GO:0003723 [RNA binding]
GO:0005515 [protein binding]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006417 [regulation of translation]
GO:0006446 [regulation of translational initiation]
GO:0008494 [translation activator activity]
GO:0045727 [positive regulation of translation]
GO:0048471 [perinuclear region of cytoplasm]
Show all
600 aa
67.8 kDa
No 0
CTIF-203
ENSP00000465405
ENST00000587752
K7EK08
[Direct mapping] CBP80/20-dependent translation initiation factor
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005829 [cytosol]
Show all
194 aa
21.8 kDa
No 0
CTIF-206
ENSP00000467957
ENST00000588345
K7EQS5
[Direct mapping] CBP80/20-dependent translation initiation factor
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
104 aa
11.3 kDa
No 0
CTIF-209
ENSP00000467425
ENST00000591387
K7EPK6
[Direct mapping] CBP80/20-dependent translation initiation factor
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
138 aa
15.3 kDa
No 0
CTIF-210
ENSP00000467965
ENST00000591412
K7EQS9
[Direct mapping] CBP80/20-dependent translation initiation factor
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
120 aa
13 kDa
No 0

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