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CPTP
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.

CPTP
Synonyms GLTPD1, MGC10334
Gene descriptioni

Full gene name according to HGNC.

Ceramide-1-phosphate transfer protein
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 1
Cytoband p36.33
Chromosome location (bp) 1324756 - 1328896
Number of transcriptsi

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

2
Ensembl ENSG00000224051 (version 109)
Entrez gene 80772
HGNC HGNC:28116
UniProt Q5TA50 (UniProt - Evidence at protein level)
neXtProt NX_Q5TA50
GeneCards CPTP
Antibodypedia CPTP antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Mediates the intracellular transfer of ceramide-1-phosphate (C1P) between organelle membranes and the cell membrane. Required for normal structure of the Golgi stacks. Can bind phosphoceramides with a variety of aliphatic chains, but has a preference for lipids with saturated C16:0 or monounsaturated C18:1 aliphatic chains, and is inefficient with phosphoceramides containing lignoceryl (C24:0). Plays a role in the regulation of the cellular levels of ceramide-1-phosphate, and thereby contributes to the regulation of phospholipase PLA2G4A activity and the release of arachidonic acid. Has no activity with galactosylceramide, lactosylceramide, sphingomyelin, phosphatidylcholine, phosphatidic acid and ceramide. C1P transfer is stimulated by phosphatidylserine in C1P source vesicles 1. Regulates autophagy, inflammasome mediated IL1B and IL18 processing, and pyroptosis, but not apoptosis 2.... show less
Biological process (UniProt)i

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

Lipid transport, Transport
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

Lipid-binding
Gene summary (Entrez)i

Useful information about the gene from Entrez

Enables ceramide 1-phosphate binding activity and ceramide 1-phosphate transfer activity. Involved in several processes, including ceramide 1-phosphate transport; negative regulation of NLRP3 inflammasome complex assembly; and negative regulation of interleukin-1 beta production. Located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]... 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)
CPTP-201
ENSP00000343890
ENST00000343938
Q5TA50
[Direct mapping] Ceramide-1-phosphate transfer protein
Show all
S4S694
[Target identity:100%; Query identity:100%] Ceramide-1-phosphate transfer protein
Show all
   SPOCTOPUS predicted membrane proteins
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:0005543 [phospholipid binding]
GO:0005634 [nucleus]
GO:0005640 [nuclear outer membrane]
GO:0005737 [cytoplasm]
GO:0005768 [endosome]
GO:0005794 [Golgi apparatus]
GO:0005829 [cytosol]
GO:0005886 [plasma membrane]
GO:0006687 [glycosphingolipid metabolic process]
GO:0006869 [lipid transport]
GO:0008289 [lipid binding]
GO:0010008 [endosome membrane]
GO:0010507 [negative regulation of autophagy]
GO:0016020 [membrane]
GO:0032691 [negative regulation of interleukin-1 beta production]
GO:0035627 [ceramide transport]
GO:0120009 [intermembrane lipid transfer]
GO:0120013 [lipid transfer activity]
GO:1900226 [negative regulation of NLRP3 inflammasome complex assembly]
GO:1902387 [ceramide 1-phosphate binding]
GO:1902388 [ceramide 1-phosphate transfer activity]
GO:1902389 [ceramide 1-phosphate transport]
Show all
214 aa
24.4 kDa
No 0
CPTP-203
ENSP00000462636
ENST00000488011
J3KST3
[Direct mapping] Ceramide-1-phosphate transfer protein
Show all
   Phobius predicted membrane proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0120009 [intermembrane lipid transfer]
GO:0120013 [lipid transfer activity]
Show all
117 aa
13.6 kDa
No 0

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