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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.
Assigned HPA protein class(es) for the encoded protein(s).
Cancer-related genes Candidate cardiovascular disease genes Human disease related genes Plasma proteins
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.
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
q23.2
Chromosome location (bp)
159712289 - 159714589
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
Displays several functions associated with host defense: it promotes agglutination, bacterial capsular swelling, phagocytosis and complement fixation through its calcium-dependent binding to phosphorylcholine. Can interact with DNA and histones and may scavenge nuclear material released from damaged circulating cells....show less
Biological process (UniProt)i
Keywords assigned by UniProt to proteins because they are involved in a particular biological process.
Acute phase
Ligand (UniProt)i
Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.
Calcium, Metal-binding
Gene summary (Entrez)i
Useful information about the gene from Entrez
The protein encoded by this gene belongs to the pentraxin family which also includes serum amyloid P component protein and pentraxin 3. Pentraxins are involved in complement activation and amplification via communication with complement initiation pattern recognition molecules, but also complement regulation via recruitment of complement regulators. The encoded protein has a calcium dependent ligand binding domain with a distinctive flattened beta-jellyroll structure. It exists in two forms as either a pentamer in circulation or as a nonsoluble monomer in tissues. It is involved in several host defense related functions based on its ability to recognize foreign pathogens and damaged cells of the host and to initiate their elimination by interacting with humoral and cellular effector systems in the blood. Consequently, the level of this protein in plasma increases greatly during acute phase response to tissue injury, infection, or other inflammatory stimuli. Elevated expression of the encoded protein is associated with severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) infection. [provided by RefSeq, Aug 2020]...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.
P02741 [Direct mapping] C-reactive protein C-reactive protein(1-205)
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MEMSAT3 predicted membrane proteins Predicted secreted proteins Secreted proteins predicted by MDSEC SignalP predicted secreted proteins Phobius predicted secreted proteins SPOCTOPUS predicted secreted proteins DeepTMHMM predicted secreted proteins DeepSig predicted secreted proteins Plasma proteins Cancer-related genes Candidate cancer biomarkers Candidate cardiovascular disease genes Human disease related genes Immune system diseases Allergies and autoimmune diseases Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
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GO:0001849[complement component C1q complex binding] GO:0005509[calcium ion binding] GO:0005515[protein binding] GO:0005576[extracellular region] GO:0005615[extracellular space] GO:0006953[acute-phase response] GO:0006954[inflammatory response] GO:0008228[opsonization] GO:0010628[positive regulation of gene expression] GO:0010745[negative regulation of macrophage derived foam cell differentiation] GO:0010888[negative regulation of lipid storage] GO:0030169[low-density lipoprotein particle binding] GO:0032677[regulation of interleukin-8 production] GO:0032930[positive regulation of superoxide anion generation] GO:0032945[negative regulation of mononuclear cell proliferation] GO:0033265[choline binding] GO:0042310[vasoconstriction] GO:0042802[identical protein binding] GO:0045087[innate immune response] GO:0046872[metal ion binding] GO:0050750[low-density lipoprotein particle receptor binding] GO:0050830[defense response to Gram-positive bacterium]
Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Immune system diseases Allergies and autoimmune diseases Protein evidence (Ezkurdia et al 2014)
The Human Protein Atlas project is funded
