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Reviewed, UniProtKB/Swiss-Prot P18418 (CALR_RAT)

Last modified November 4, 2008. Version 96. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (3) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Calreticulin
Alternative name(s):
    CRP55
    Calregulin
    HACBP
    ERp60
    CALBP
    Calcium-binding protein 3
      Short name=CABP3
Gene names
Name: Calr
OrganismRattus norvegicus (Rat)
Taxonomic identifier10116 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeRattus

Protein attributes

Sequence length416 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence at protein level.

General annotation (Comments)

Function

Molecular calcium binding chaperone promoting folding, oligomeric assembly and quality control in the 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 By similarity.

Subunit structure

Monomer. Component of an EIF2 complex at least composed of CUGBP1, CALR, CALR3, EIF2S1, EIF2S2, HSP90B1 and HSPA5. Interacts with PDIA3/ERp57 and with NR3C1 By similarity.

Subcellular location

Endoplasmic reticulum lumen.

Tissue specificity

Predentin and odontoblast.

Domain

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.

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.

Sequence similarities

Belongs to the calreticulin family.

Caution

Was originally (Ref.9) thought to be D-beta-hydroxybutyrate dehydrogenase.

Ontologies

Keywords

   Cellular componentEndoplasmic reticulum
   DomainRepeat
Signal
   LigandCalcium
Lectin
Metal-binding
Zinc
   Molecular functionChaperone
   Technical term3D-structure
Direct protein sequencing

Gene Ontology (GO)

   Biological processnegative regulation of translation

Inferred from direct assay. Source: UniProtKB

   Molecular functionmRNA binding

Inferred from direct assay. Source: UniProtKB

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Signal peptide1 – 1717
Chain18 – 416399Calreticulin
PRO_0000004177

Regions

Repeat191 – 202121-1
Repeat210 – 221121-2
Repeat227 – 238121-3
Repeat244 – 255121-4
Repeat259 – 269112-1
Repeat273 – 283112-2
Repeat287 – 297112-3
Region18 – 197180N-domain
Region191 – 255654 X approximate repeats
Region198 – 308111P-domain
Region259 – 297393 X approximate repeats
Region309 – 416108C-domain
Motif413 – 4164Prevents secretion from ER
Compositional bias351 – 40757Asp/Glu/Lys-rich

Amino acid modifications

Disulfide bond105 ↔ 137 By similarity

Experimental info

Sequence conflict2691P → R in CAA31987. Ref.9
Sequence conflict359 – 3613DKQ → AAG in CAA31987. Ref.9

Secondary structure

........... 416
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
P18418-1 [UniParc].

Last modified November 1, 1990. Version 1.
Checksum: 2E6713CED31A2970

FASTA41647,995
        10         20         30         40         50         60 
MLLSVPLLLG LLGLAAADPA IYFKEQFLDG DAWTNRWVES KHKSDFGKFV LSSGKFYGDQ 

        70         80         90        100        110        120 
EKDKGLQTSQ DARFYALSAR FEPFSNKGQT LVVQFTVKHE QNIDCGGGYV KLFPGGLDQK 

       130        140        150        160        170        180 
DMHGDSEYNI MFGPDICGPG TKKVHVIFNY KGKNVLINKD IRCKDDEFTH LYTLIVRPDN 

       190        200        210        220        230        240 
TYEVKIDNSQ VESGSLEDDW DFLPPKKIKD PDAAKPEDWD ERAKIDDPTD SKPEDWDKPE 

       250        260        270        280        290        300 
HIPDPDAKKP EDWDEEMDGE WEPPVIQNPE YKGEWKPRQI DNPDYKGTWI HPEIDNPEYS 

       310        320        330        340        350        360 
PDANIYAYDS FAVLGLDLWQ VKSGTIFDNF LITNDEAYAE EFGNETWGVT KAAEKQMKDK 

       370        380        390        400        410 
QDEEQRLKEE EEDKKRKEEE EAEDKEDEDD RDEDEDEEDE KEEDEEDATG QAKDEL 

« Hide

References

« Hide 'large scale' references
[1]"Structural homology between the rat calreticulin gene product and the Onchocerca volvulus antigen Ral-1."
Murthy K.K., Banville D., Srikant C.B., Carrier F., Bell A., Holmes C., Patel Y.C.
Nucleic Acids Res. 18:4933-4933(1990) [PubMed: 2395661] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
Strain: Sprague-Dawley.
Tissue: Brain cortex.
[2]"An endoplasmic reticulum protein, calreticulin, is transported into the acrosome of rat sperm."
Nakamura M., Moriya M., Baba T., Michikawa Y., Yamanobe T., Arai K., Okinaga S., Kobayashi T.
Exp. Cell Res. 205:101-110(1993) [PubMed: 8453984] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
Strain: Sprague-Dawley.
[3]"Retention and retrieval: both mechanisms cooperate to maintain calreticulin in the endoplasmic reticulum."
Soennichsen B., Fuellekrug J., van Nguyen P., Diekmann W., Robinson D.G., Mieskes G.
J. Cell Sci. 107:2705-2717(1994) [PubMed: 7876339] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
Strain: Sprague-Dawley.
Tissue: Liver.
[4]"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
The MGC Project Team
Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Tissue: Prostate.
[5]"Calreticulin is present in the acrosome of spermatids of rat testis."
Nakamura M., Michikawa Y., Baba T., Okinaga S., Arai K.
Biochem. Biophys. Res. Commun. 186:668-673(1992) [PubMed: 1497655] [Abstract]
Cited for: PROTEIN SEQUENCE OF 18-32.
Strain: Sprague-Dawley.
Tissue: Testis.
[6]"Identification of protein disulfide isomerase and calreticulin as autoimmune antigens in LEC strain of rats."
Yokoi T., Nagayama S., Kajiwara R., Kawaguchi Y., Horiuchi R., Kamataki T.
Biochim. Biophys. Acta 1158:339-344(1993) [PubMed: 8251535] [Abstract]
Cited for: PROTEIN SEQUENCE OF 18-32.
Strain: LEC.
Tissue: Liver.
[7]"Calreticulin is a candidate for a calsequestrin-like function in Ca2(+)-storage compartments (calciosomes) of liver and brain."
Treves S., de Mattei M., Lanfredi M., Villa A., Green N.M., Maclennan D.H., Meldolesi J., Pozzan T.
Biochem. J. 271:473-480(1990) [PubMed: 2241926] [Abstract]
Cited for: PROTEIN SEQUENCE OF 18-29.
[8]Lubec G., Afjehi-Sadat L., Diao W.
Submitted (APR-2007) to UniProtKB
Cited for: PROTEIN SEQUENCE OF 25-36; 88-98 AND 163-185, MASS SPECTROMETRY.
Strain: Sprague-Dawley.
Tissue: Hippocampus and Spinal cord.
[9]Lone Y.-C., Bailly A., Latruffe N.
Submitted (DEC-1988) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 269-361.
Strain: Sprague-Dawley.
[10]"Calreticulin -- an endoplasmic reticulum protein with calcium-binding activity is also found in the extracellular matrix."
Somogyi E., Petersson U., Hultenby K., Wendel M.
Matrix Biol. 22:179-191(2003) [PubMed: 12782144] [Abstract]
Cited for: TISSUE SPECIFICITY, SUBCELLULAR LOCATION.
[11]"TROSY-NMR reveals interaction between ERp57 and the tip of the calreticulin P-domain."
Frickel E.M., Riek R., Jelesarov I., Helenius A., Wuethrich K., Ellgaard L.
Proc. Natl. Acad. Sci. U.S.A. 99:1954-1959(2002) [PubMed: 11842220] [Abstract]
Cited for: INTERACTION WITH PDIA3.
+Additional computationally mapped references.

Cross-references

Sequence databases

X53363 mRNA. Translation: CAA37446.1.
D78308 mRNA. Translation: BAA11345.1.
X79327 mRNA. Translation: CAA55890.1.
BC062395 mRNA. Translation: AAH62395.1.
X13702 mRNA. Translation: CAA31987.1.
PIRJH0819.
RefSeqNP_071794.1.
UniGeneRn.974

3D structure databases

EntryMethodResolution (Å)ChainPositionsPDBsum
1HHNNMR-A206-305[»]
1K91NMR-A238-273[»]
1K9CNMR-A206-278[»]
ModBaseSearch...

Genome annotation databases

EnsemblENSRNOG00000003029. Rattus norvegicus. [Contig view]
GeneID64202.
KEGGrno:64202.

Organism-specific databases

RGD620288. Calr.

Phylogenomic databases

HOVERGENP18418.

Gene expression databases

ArrayExpressP18418.
GermOnlineENSRNOG00000003029. Rattus norvegicus.

Family and domain databases

InterProIPR001580. Calret/calnex.
IPR009169. Calreticulin.
IPR009033. Calreticulin/calnexin_P.
IPR013320. ConA_like_subgrp.
IPR000886. ER_targeting_sequence.
[Graphical view]
Gene3DG3DSA:2.10.250.10. Calreticulin/calnexin_P. 1 hit.
G3DSA:2.60.120.200. ConA_like_subgrp. 1 hit.
PANTHERPTHR11073. Calret/calnex. 1 hit.
PTHR11073:SF2. Calreticulin. 1 hit.
PfamPF00262. Calreticulin. 1 hit.
[Graphical view]
PIRSFPIRSF002356. Calreticulin. 1 hit.
PRINTSPR00626. CALRETICULIN.
ProDomPD001866. Calret/calnex. 1 hit.
[Graphical view] [Entries sharing at least one domain]
PROSITEPS00803. CALRETICULIN_1. 1 hit.
PS00804. CALRETICULIN_2. 1 hit.
PS00805. CALRETICULIN_REPEAT. 3 hits.
PS00014. ER_TARGET. 1 hit.
[Graphical view]
BLOCKSSearch...
ProtoNetSearch...

Other Resources

NextBio612898.

Entry information

Entry nameCALR_RAT
AccessionPrimary (citable) accession number: P18418
Secondary accession number(s): P10452
Entry history
Integrated into UniProtKB/Swiss-Prot: November 1, 1990
Last sequence update: November 1, 1990
Last modified: November 4, 2008
This is version 96 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHPI (Human Proteome Initiative)

Relevant documents

PDB cross-references

Index of Protein Data Bank (PDB) cross-references

UniProtKB secondary accession numbers

Index of UniProtKB secondary accession numbers

SIMILARITY comments

Index of protein domains and families

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents