UniProtKB - P52193 (CALR_BOVIN)
Protein
Calreticulin
Gene
CALR
Organism
Bos taurus (Bovine)
Status
Functioni
Calcium-binding chaperone that promotes folding, oligomeric assembly and quality control in the endoplasmic reticulum (ER) via the calreticulin/calnexin cycle. This lectin interacts transiently with almost all of the monoglucosylated glycoproteins that are synthesized in the ER. Interacts with the DNA-binding domain of NR3C1 and mediates its nuclear export. Involved in maternal gene expression regulation. May participate in oocyte maturation via the regulation of calcium homeostasis.By similarity
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 26 | Calcium; via carbonyl oxygenBy similarity | 1 | |
Metal bindingi | 62 | Calcium; via carbonyl oxygenBy similarity | 1 | |
Metal bindingi | 64 | Calcium; via carbonyl oxygenBy similarity | 1 | |
Binding sitei | 109 | CarbohydrateBy similarity | 1 | |
Binding sitei | 111 | CarbohydrateBy similarity | 1 | |
Binding sitei | 128 | CarbohydrateBy similarity | 1 | |
Binding sitei | 135 | CarbohydrateBy similarity | 1 | |
Binding sitei | 317 | CarbohydrateBy similarity | 1 | |
Metal bindingi | 328 | CalciumBy similarity | 1 |
GO - Molecular functioni
- calcium ion binding Source: UniProtKB
- carbohydrate binding Source: UniProtKB-KW
- unfolded protein binding Source: InterPro
GO - Biological processi
- endoplasmic reticulum unfolded protein response Source: GO_Central
- protein folding Source: GO_Central
- protein stabilization Source: UniProtKB
Keywordsi
Molecular function | Chaperone |
Ligand | Calcium, Lectin, Metal-binding, Zinc |
Names & Taxonomyi
Protein namesi | Recommended name: CalreticulinAlternative name(s): CRP55 Calregulin HACBP |
Gene namesi | Name:CALR Synonyms:CRT |
Organismi | Bos taurus (Bovine) |
Taxonomic identifieri | 9913 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Laurasiatheria › Artiodactyla › Ruminantia › Pecora › Bovidae › Bovinae › Bos |
Proteomesi |
|
Subcellular locationi
Endoplasmic reticulum
- Endoplasmic reticulum lumen PROSITE-ProRule annotation1 Publication
Other locations
- Sarcoplasmic reticulum lumen By similarity
Endoplasmic reticulum
- endoplasmic reticulum membrane Source: GO_Central
- sarcoplasmic reticulum lumen Source: UniProtKB-SubCell
Keywords - Cellular componenti
Endoplasmic reticulum, Sarcoplasmic reticulumPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 17 | 2 PublicationsAdd BLAST | 17 | |
ChainiPRO_0000004170 | 18 – 417 | CalreticulinAdd BLAST | 400 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 48 | N6-acetyllysineBy similarity | 1 | |
Disulfide bondi | 137 ↔ 163 | |||
Modified residuei | 159 | N6-acetyllysineBy similarity | 1 | |
Glycosylationi | 179 | N-linked (GlcNAc...) asparagine | 1 | |
Modified residuei | 209 | N6-acetyllysineBy similarity | 1 |
Keywords - PTMi
Acetylation, Disulfide bond, GlycoproteinProteomic databases
PaxDbi | P52193 |
PeptideAtlasi | P52193 |
PRIDEi | P52193 |
Interactioni
Subunit structurei
Monomer.
Component of an EIF2 complex at least composed of CELF1/CUGBP1, CALR, CALR3, EIF2S1, EIF2S2, HSP90B1 and HSPA5.
Interacts with GABARAP, NR3C1, PDIA3/ERp57 and TRIM21.
Interacts with PPIB and SPACA9.
Interacts (via P-domain) with PDIA5 (By similarity).
Interacts with CLCC1 (By similarity).
By similarityGO - Molecular functioni
- unfolded protein binding Source: InterPro
Protein-protein interaction databases
IntActi | P52193, 2 interactors |
STRINGi | 9913.ENSBTAP00000020111 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Repeati | 191 – 202 | 1-1Add BLAST | 12 | |
Repeati | 210 – 221 | 1-2Add BLAST | 12 | |
Repeati | 227 – 238 | 1-3Add BLAST | 12 | |
Repeati | 244 – 255 | 1-4Add BLAST | 12 | |
Repeati | 259 – 269 | 2-1Add BLAST | 11 | |
Repeati | 273 – 283 | 2-2Add BLAST | 11 | |
Repeati | 287 – 297 | 2-3Add BLAST | 11 |
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 18 – 197 | N-domainAdd BLAST | 180 | |
Regioni | 191 – 255 | 4 X approximate repeatsAdd BLAST | 65 | |
Regioni | 198 – 308 | P-domainAdd BLAST | 111 | |
Regioni | 237 – 270 | Interaction with PPIBBy similarityAdd BLAST | 34 | |
Regioni | 259 – 297 | 3 X approximate repeatsAdd BLAST | 39 | |
Regioni | 309 – 417 | C-domainAdd BLAST | 109 |
Motif
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Motifi | 414 – 417 | Prevents secretion from ERPROSITE-ProRule annotation | 4 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 351 – 407 | Asp/Glu/Lys-richAdd BLAST | 57 |
Domaini
Can be divided into a N-terminal globular domain, a proline-rich P-domain forming an elongated arm-like structure and a C-terminal acidic domain. The P-domain binds one molecule of calcium with high affinity, whereas the acidic C-domain binds multiple calcium ions with low affinity (By similarity).By similarity
The interaction with glycans occurs through a binding site in the globular lectin domain.By similarity
The zinc binding sites are localized to the N-domain.By similarity
Associates with PDIA3 through the tip of the extended arm formed by the P-domain.By similarity
Sequence similaritiesi
Belongs to the calreticulin family.Curated
Keywords - Domaini
Repeat, SignalPhylogenomic databases
eggNOGi | KOG0674, Eukaryota |
InParanoidi | P52193 |
OrthoDBi | 822188at2759 |
Family and domain databases
Gene3Di | 2.10.250.10, 1 hit |
InterProi | View protein in InterPro IPR001580, Calret/calnex IPR018124, Calret/calnex_CS IPR009169, Calreticulin IPR009033, Calreticulin/calnexin_P_dom_sf IPR013320, ConA-like_dom_sf |
PANTHERi | PTHR11073, PTHR11073, 1 hit |
Pfami | View protein in Pfam PF00262, Calreticulin, 2 hits |
PIRSFi | PIRSF002356, Calreticulin, 1 hit |
PRINTSi | PR00626, CALRETICULIN |
SUPFAMi | SSF49899, SSF49899, 1 hit SSF63887, SSF63887, 1 hit |
PROSITEi | View protein in PROSITE PS00803, CALRETICULIN_1, 1 hit PS00804, CALRETICULIN_2, 1 hit PS00805, CALRETICULIN_REPEAT, 3 hits PS00014, ER_TARGET, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
P52193-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MLLPVPLLLG LLGLAAADPT VYFKEQFLDG DGWTERWIES KHKPDFGKFV
60 70 80 90 100
LSSGKFYGDQ EKDKGLQTSQ DARFYALSAR FEPFSNKGQT LVVQFTVKHE
110 120 130 140 150
QNIDCGGGYV KLFPAGLDQT DMHGDSEYNI MFGPDICGPG TKKVHVIFNY
160 170 180 190 200
KGKNVLINKD IRCKDDEFTH LYTLIVRPNN TYEVKIDNSQ VESGSLEDDW
210 220 230 240 250
DFLPPKKIKD PDAAKPEDWD DRAKIDDPTD SKPEDWDKPE HIPDPDAKKP
260 270 280 290 300
EDWDEEMDGE WEPPVIQNPE YKGEWKPRQI DNPEYKGIWI HPEIDNPEYS
310 320 330 340 350
PDSNIYAYEN FAVLGLDLWQ VKSGTIFDNF LITNDEAYAE EFGNETWGVT
360 370 380 390 400
KAAEKQMKDK QDEEQRLHEE EEEKKGKEEE EADKDDDEDK DEDEEDEDEK
410
EEEEEEDAAA GQAKDEL
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 1 – 99 | MLLPV…FTVKH → MCLNHFLLSLVLSIVLLFHF VFYICLHHIVTFLREETVFF SEQFLTLDLKYKASKLSSIR EALSMSKVGIIENFCFSEIS FLQESIKSHGRRTLVGCSPW GHE in AAC37307 (PubMed:8373827).CuratedAdd BLAST | 99 | |
Sequence conflicti | 18 – 21 | DPTV → EPAI AA sequence (PubMed:2016321).Curated | 4 | |
Sequence conflicti | 111 – 112 | KL → NV in AAC37307 (PubMed:8373827).Curated | 2 | |
Sequence conflicti | 265 | V → L in AAC37307 (PubMed:8373827).Curated | 1 | |
Sequence conflicti | 383 | D → E in AAC37307 (PubMed:8373827).Curated | 1 | |
Sequence conflicti | 411 | G → A in AAC37307 (PubMed:8373827).Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | L13462 mRNA Translation: AAC37307.1 AB067687 mRNA Translation: BAB86913.1 |
PIRi | A33208 S36799 S43376 |
RefSeqi | NP_776425.1, NM_174000.2 |
Genome annotation databases
GeneIDi | 281036 |
KEGGi | bta:281036 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | L13462 mRNA Translation: AAC37307.1 AB067687 mRNA Translation: BAB86913.1 |
PIRi | A33208 S36799 S43376 |
RefSeqi | NP_776425.1, NM_174000.2 |
3D structure databases
SMRi | P52193 |
ModBasei | Search... |
Protein-protein interaction databases
IntActi | P52193, 2 interactors |
STRINGi | 9913.ENSBTAP00000020111 |
Proteomic databases
PaxDbi | P52193 |
PeptideAtlasi | P52193 |
PRIDEi | P52193 |
Genome annotation databases
GeneIDi | 281036 |
KEGGi | bta:281036 |
Organism-specific databases
CTDi | 811 |
Phylogenomic databases
eggNOGi | KOG0674, Eukaryota |
InParanoidi | P52193 |
OrthoDBi | 822188at2759 |
Family and domain databases
Gene3Di | 2.10.250.10, 1 hit |
InterProi | View protein in InterPro IPR001580, Calret/calnex IPR018124, Calret/calnex_CS IPR009169, Calreticulin IPR009033, Calreticulin/calnexin_P_dom_sf IPR013320, ConA-like_dom_sf |
PANTHERi | PTHR11073, PTHR11073, 1 hit |
Pfami | View protein in Pfam PF00262, Calreticulin, 2 hits |
PIRSFi | PIRSF002356, Calreticulin, 1 hit |
PRINTSi | PR00626, CALRETICULIN |
SUPFAMi | SSF49899, SSF49899, 1 hit SSF63887, SSF63887, 1 hit |
PROSITEi | View protein in PROSITE PS00803, CALRETICULIN_1, 1 hit PS00804, CALRETICULIN_2, 1 hit PS00805, CALRETICULIN_REPEAT, 3 hits PS00014, ER_TARGET, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | CALR_BOVIN | |
Accessioni | P52193Primary (citable) accession number: P52193 Secondary accession number(s): P28489, P42918, Q8SQ53 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | October 1, 1996 |
Last sequence update: | February 22, 2003 | |
Last modified: | December 2, 2020 | |
This is version 141 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Direct protein sequencing, Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families