CALR (Mus musculus)
Description [+]
- Synonyms: CALR, CALREGULIN,CRP55,HACBP,ERP60
- Species: Metazoa;Bilateria;Deuterostoma;Chordata;Vertebrata;Mammalia;Rodentia; Mus musculus
- Short gene description: Calreticulin Precursor (CRP55)(Calregulin)(HACBP)(ERp60) [Source:UniProtKB/Swiss-Prot;Acc:P14211]
- Family: other
- Process: apoptosis,
- Pathways: apoptotic cell clearance,
- Criteria: manually curated
- Curator comment: Null
- Human ortholog(s): CALR
- WIKI: CALR-M_musculus
References [+]
- Cell-surface calreticulin initiates clearance of viable or apoptotic cells through trans-activation of LRP on the phagocyte.
- Gardai SJ, McPhillips KA, Frasch SC, Janssen WJ, Starefeldt A, Murphy-Ullrich JE, Bratton DL, Oldenborg PA, Michalak M, Henson PM
- Apoptotic-cell removal is critical for development, tissue homeostasis, and resolution of inflammation. Although many candidate systems exist, only phosphatidylserine has been identified as a general recognition ligand on apoptotic cells. We demonstrate here that calreticulin acts as a second general recognition ligand by binding and activating LDL-receptor-related protein (LRP) on the engulfing cell. Since surface calreticulin is also found on viable cells, a mechanism preventing inadvertent uptake was sought. Disruption of interactions between CD47 (integrin-associated protein) on the target cell and SIRPalpha (SHPS-1), a heavily glycosylated transmembrane protein on the engulfing cell, permitted uptake of viable cells in a calreticulin/LRP-dependent manner. On apoptotic cells, CD47 was altered and/or lost and no longer activated SIRPalpha. These changes on the apoptotic cell create an environment where don't eat me signals are rendered inactive and eat me signals, including calreticulin and phosphatidylserine, congregate together and signal for removal. Cell. 2005 Oct 21;123(2):321-34.
- Calreticulin is essential for cardiac development.
- Mesaeli N, Nakamura K, Zvaritch E, Dickie P, Dziak E, Krause KH, Opas M, MacLennan DH, Michalak M
- Calreticulin is a ubiquitous Ca2+ binding protein, located in the endoplasmic reticulum lumen, which has been implicated in many diverse functions including: regulation of intracellular Ca2+ homeostasis, chaperone activity, steroid-mediated gene regulation, and cell adhesion. To understand the physiological function of calreticulin we used gene targeting to create a knockout mouse for calreticulin. Mice homozygous for the calreticulin gene disruption developed omphalocele (failure of absorption of the umbilical hernia) and showed a marked decrease in ventricular wall thickness and deep intertrabecular recesses in the ventricular walls. Transgenic mice expressing a green fluorescent protein reporter gene under the control of the calreticulin promoter were used to show that the calreticulin gene is highly activated in the cardiovascular system during the early stages of cardiac development. Calreticulin protein is also highly expressed in the developing heart, but it is only a minor component of the mature heart. Bradykinin-induced Ca2+ release by the InsP3-dependent pathway was inhibited in crt-/- cells, suggesting that calreticulin plays a role in Ca2+ homeostasis. Calreticulin-deficient cells also exhibited impaired nuclear import of nuclear factor of activated T cell (NF-AT3) transcription factor indicating that calreticulin plays a role in cardiac development as a component of the Ca2+/calcineurin/NF-AT/GATA-4 transcription pathway. J Cell Biol. 1999 Mar 8;144(5):857-68.
- References from Human ortholog(s):
- Cell-surface calreticulin initiates clearance of viable or apoptotic cells through trans-activation of LRP on the phagocyte.
- Gardai SJ, McPhillips KA, Frasch SC, Janssen WJ, Starefeldt A, Murphy-Ullrich JE, Bratton DL, Oldenborg PA, Michalak M, Henson PM
- Apoptotic-cell removal is critical for development, tissue homeostasis, and resolution of inflammation. Although many candidate systems exist, only phosphatidylserine has been identified as a general recognition ligand on apoptotic cells. We demonstrate here that calreticulin acts as a second general recognition ligand by binding and activating LDL-receptor-related protein (LRP) on the engulfing cell. Since surface calreticulin is also found on viable cells, a mechanism preventing inadvertent uptake was sought. Disruption of interactions between CD47 (integrin-associated protein) on the target cell and SIRPalpha (SHPS-1), a heavily glycosylated transmembrane protein on the engulfing cell, permitted uptake of viable cells in a calreticulin/LRP-dependent manner. On apoptotic cells, CD47 was altered and/or lost and no longer activated SIRPalpha. These changes on the apoptotic cell create an environment where don't eat me signals are rendered inactive and eat me signals, including calreticulin and phosphatidylserine, congregate together and signal for removal. Cell. 2005 Oct 21;123(2):321-34.
- Apoptosis: controlled demolition at the cellular level.
- Taylor RC, Cullen SP, Martin SJ
- Apoptosis is characterized by a series of dramatic perturbations to the cellular architecture that contribute not only to cell death, but also prepare cells for removal by phagocytes and prevent unwanted immune responses. Much of what happens during the demolition phase of apoptosis is orchestrated by members of the caspase family of cysteine proteases. These proteases target several hundred proteins for restricted proteolysis in a controlled manner that minimizes damage and disruption to neighbouring cells and avoids the release of immunostimulatory molecules. Nat Rev Mol Cell Biol. 2008 Mar;9(3):231-41.
Structure & Sequence [+]
Pfam domains:
(Pfam is a large collection of protein families.)
Source | Domain Name | Start | End |
---|---|---|---|
PFAM A | Calreticulin | 21 | 232 |
Protein sequence [+]
Calr | Mus musculus | 10090 | length:416
MLLSVPLLLGLLGLAAADPAIYFKEQFLDGDAWTNRWVESKHKSDFGKFVLSSGKFYGDL
EKDKGLQTSQDARFYALSAKFEPFSNKGQTLVVQFTVKHEQNIDCGGGYVKLFPSGLDQK
DMHGDSEYNIMFGPDICGPGTKKVHVIFNYKGKNVLINKDIRCKDDEFTHLYTLIVRPDN
TYEVKIDNSQVESGSLEDDWDFLPPKKIKDPDAAKPEDWDERAKIDDPTDSKPEDWDKPE
HIPDPDAKKPEDWDEEMDGEWEPPVIQNPEYKGEWKPRQIDNPDYKGTWIHPEIDNPEYS
PDANIYAYDSFAVLGLDLWQVKSGTIFDNFLITNDEAYAEEFGNETWGVTKAAEKQMKDK
QDEEQRLKEEEEDKKRKEEEEAEDKEDDDDRDEDEDEEDEKEEDEEESPGQAKDEL
EKDKGLQTSQDARFYALSAKFEPFSNKGQTLVVQFTVKHEQNIDCGGGYVKLFPSGLDQK
DMHGDSEYNIMFGPDICGPGTKKVHVIFNYKGKNVLINKDIRCKDDEFTHLYTLIVRPDN
TYEVKIDNSQVESGSLEDDWDFLPPKKIKDPDAAKPEDWDERAKIDDPTDSKPEDWDKPE
HIPDPDAKKPEDWDEEMDGEWEPPVIQNPEYKGEWKPRQIDNPDYKGTWIHPEIDNPEYS
PDANIYAYDSFAVLGLDLWQVKSGTIFDNFLITNDEAYAEEFGNETWGVTKAAEKQMKDK
QDEEQRLKEEEEDKKRKEEEEAEDKEDDDDRDEDEDEEDEKEEDEEESPGQAKDEL
Evolution [+]
View protein alignment and tree with Jalview:  
Explore tree at phylomeDB:   Click here.
Homologs list [+]
Name | Relationship | Species |
---|---|---|
A_aegypti_AAEL011773-PA | orthology | Aedes |
A_aegypti_AAEL001005-PA | orthology | Aedes |
A_gambiae_AGAP004212-PA | orthology | Anopheles |
XR_024426.1 | orthology | Chimpanzee |
NA | orthology | Ciona |
CALR_BOVIN | orthology | Cow |
CALR | orthology | Dog |
Crc | orthology | Fly |
CALR | orthology | Gorilla |
CALR | orthology | Horse |
CALR | orthology | Human |
CALR | orthology | Lyzard |
CALR | orthology | Macaca |
CALR | orthology | Monodelphis |
CALR | orthology | Orangutan |
CALR | orthology | Ornithorhynchus |
CALR_RAT | orthology | Rat |
crt-1 | orthology | Worm |
calr | orthology | Xenopus |
CNE1 | orthology | Yeast |
A_aegypti_AAEL015100-PA | paralogy | Aedes |
A_gambiae_AGAP005032-PA | paralogy | Anopheles |
NP_001025791.1 | paralogy | Chicken |
IPI00597616.2 | paralogy | Chicken |
IPI00580922.2 | paralogy | Chicken |
CANX | paralogy | Chimpanzee |
XR_022389.1 | paralogy | Chimpanzee |
CLGN | paralogy | Chimpanzee |
NA | paralogy | Ciona |
IPI00716596.5 | paralogy | Cow |
CLGN_BOVIN | paralogy | Cow |
CALR3_BOVIN | paralogy | Cow |
CLGN | paralogy | Dog |
CALX_CANFA | paralogy | Dog |
CALR3 | paralogy | Dog |
CG9906 | paralogy | Fly |
Cnx99A | paralogy | Fly |
CG1924 | paralogy | Fly |
CALR3 | paralogy | Fugu |
CLGN | paralogy | Fugu |
CALR | paralogy | Fugu |
CANX | paralogy | Fugu |
CLGN | paralogy | Gasterosteus |
CALR | paralogy | Gasterosteus |
CANX | paralogy | Gasterosteus |
CALR3 (1 of 2) | paralogy | Gasterosteus |
CALR3 (2 of 2) | paralogy | Gasterosteus |
CANX | paralogy | Gorilla |
XP_001494051.2 | paralogy | Horse |
CALR3 | paralogy | Horse |
CLGN | paralogy | Horse |
CANX | paralogy | Horse |
CALR3 | paralogy | Human |
CANX | paralogy | Human |
CLGN | paralogy | Human |
CANX | paralogy | Lyzard |
CLGN | paralogy | Lyzard |
CANX | paralogy | Macaca |
M_mulatta_ENSMMUP00000040204 | paralogy | Macaca |
CLGN | paralogy | Macaca |
CLGN | paralogy | Medaka |
CALR3 (2 of 2) | paralogy | Medaka |
CALR | paralogy | Medaka |
CANX | paralogy | Medaka |
CALR3 (1 of 2) | paralogy | Medaka |
XR_030339.1 | paralogy | Monodelphis |
M_domestica_ENSMODP00000020352 | paralogy | Monodelphis |
M_domestica_ENSMODP00000019327 | paralogy | Monodelphis |
CLGN | paralogy | Monodelphis |
XM_001372298.1 | paralogy | Monodelphis |
CALR3 | paralogy | Monodelphis |
Calr4 | paralogy | Mouse |
Canx | paralogy | Mouse |
Clgn | paralogy | Mouse |
Calr3 | paralogy | Mouse |
CANX | paralogy | Orangutan |
CLGN | paralogy | Orangutan |
CALR3 | paralogy | Orangutan |
O_anatinus_ENSOANP00000023446 | paralogy | Ornithorhynchus |
CLGN | paralogy | Ornithorhynchus |
CANX | paralogy | Ornithorhynchus |
CALR3 | paralogy | Ornithorhynchus |
CANX | paralogy | Rabbit |
CALR3 | paralogy | Rabbit |
CLGN | paralogy | Rabbit |
NP_001012212.1 | paralogy | Rat |
CALX_RAT | paralogy | Rat |
Calr4 | paralogy | Rat |
NP_001102942.1 | paralogy | Rat |
CANX (1 of 2) | paralogy | Tetraodon |
CALR | paralogy | Tetraodon |
CLGN | paralogy | Tetraodon |
CANX (2 of 2) | paralogy | Tetraodon |
cnx-1 | paralogy | Worm |
canx | paralogy | Xenopus |
CALR3 | paralogy | Xenopus |
CLGN | paralogy | Xenopus |
CLGN | paralogy | Zebra finch |
CANX | paralogy | Zebra finch |
CALR (1 of 3) | paralogy | Zebrafish |
CANX (2 of 2) | paralogy | Zebrafish |
canx | paralogy | Zebrafish |
clgn | paralogy | Zebrafish |
calrl | paralogy | Zebrafish |
calr | paralogy | Zebrafish |
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Gene Ontology [+]
GO id | Name | Ontology type | Evidence |
---|---|---|---|
GO:0002502 | peptide antigen assembly with MHC class I protein complex | biological_proccess | IMP |
GO:0006457 | protein folding | biological_proccess | IEA |
GO:0010149 | senescence | biological_proccess | IMP |
GO:0030866 | cortical actin cytoskeleton organization | biological_proccess | IDA |
GO:0040020 | regulation of meiosis | biological_proccess | IDA |
GO:0045787 | positive regulation of cell cycle | biological_proccess | IMP |
GO:0050766 | positive regulation of phagocytosis | biological_proccess | IMP |
GO:0008284 | positive regulation of cell proliferation | biological_proccess | IEA |
GO:0000122 | negative regulation of transcription from RNA polymerase II promoter | biological_proccess | IEA |
GO:0007050 | cell cycle arrest | biological_proccess | IEA |
GO:0006611 | protein export from nucleus | biological_proccess | IEA |
GO:0045740 | positive regulation of DNA replication | biological_proccess | IEA |
GO:0033144 | negative regulation of steroid hormone receptor signaling pathway | biological_proccess | IEA |
GO:0045665 | negative regulation of neuron differentiation | biological_proccess | IEA |
GO:0048387 | negative regulation of retinoic acid receptor signaling pathway | biological_proccess | IEA |
GO:0010149 | senescence | biological_proccess | IEA |
GO:0045787 | positive regulation of cell cycle | biological_proccess | IEA |
GO:0017148 | negative regulation of translation | biological_proccess | IEA |
GO:0003729 | mRNA binding | mollecular_function | IDA |
GO:0005509 | calcium ion binding | mollecular_function | IDA |
GO:0005529 | sugar binding | mollecular_function | IEA |
GO:0008270 | zinc ion binding | mollecular_function | IEA |
GO:0051082 | unfolded protein binding | mollecular_function | IEA |
GO:0046872 | metal ion binding | mollecular_function | IEA |
GO:0016564 | transcription repressor activity | mollecular_function | IEA |
GO:0005178 | integrin binding | mollecular_function | IEA |
GO:0050681 | androgen receptor binding | mollecular_function | IEA |
GO:0003729 | mRNA binding | mollecular_function | IEA |
GO:0008937 | ferredoxin reductase activity | mollecular_function | IEA |
GO:0005615 | extracellular space | cell_component | IDA |
GO:0005783 | endoplasmic reticulum | cell_component | IDA |
GO:0005788 | endoplasmic reticulum lumen | cell_component | IEA |
GO:0005792 | microsome | cell_component | IDA |
GO:0005844 | polysome | cell_component | IDA |
GO:0009897 | external side of plasma membrane | cell_component | IDA |
GO:0042824 | MHC class I peptide loading complex | cell_component | IMP |
GO:0005634 | nucleus | cell_component | IEA |
GO:0005829 | cytosol | cell_component | IEA |
GO:0048471 | perinuclear region of cytoplasm | cell_component | IEA |
GO:0005783 | endoplasmic reticulum | cell_component | IEA |
Check GO Evidence Codes here
Information from other databases [+]
- Ensembl genome browser [?] : ENSMUSG00000003814
- Expression info from Arrayexpress [?] : ENSMUSG00000003814
- Protein expression from Protein Atlas: [?] ENSMUSG00000003814
Click on [?] for more information.