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Entry version 83 (02 Jun 2021)
Sequence version 1 (01 Oct 2003)
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Protein

Calreticulin

Gene

crt

Organism
Bombyx mori (Silk moth)
Status
Reviewed-Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Molecular calcium-binding chaperone promoting folding, oligomeric assembly and quality control in the ER via the calreticulin/calnexin cycle. This lectin may interact transiently with almost all of the monoglucosylated glycoproteins that are synthesized in the ER (By similarity).

By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei109CarbohydrateBy similarity1
Binding sitei111CarbohydrateBy similarity1
Binding sitei128CarbohydrateBy similarity1
Binding sitei135CarbohydrateBy similarity1
Binding sitei317CarbohydrateBy similarity1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionChaperone
LigandCalcium, Lectin, Metal-binding, Zinc

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Calreticulin
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:crtImported
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiBombyx mori (Silk moth)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri7091 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaEcdysozoaArthropodaHexapodaInsectaPterygotaNeopteraEndopterygotaLepidopteraGlossataDitrysiaBombycoideaBombycidaeBombycinaeBombyx
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000005204 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Unassembled WGS sequence

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Keywords - Cellular componenti

Endoplasmic reticulum

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 19Sequence analysisAdd BLAST19
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000027969620 – 398CalreticulinSequence analysisAdd BLAST379

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi105 ↔ 137By similarity

Keywords - PTMi

Disulfide bond

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q7Z1E6

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Expressed in fat bodies. Not expressed in midgut, silk gland, ovary or testis.2 Publications

<p>This subsection of the 'Expression' section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

Induced by disturbances in intracellular calcium levels caused by the chelators BAPTA-AM and EDTA, the endoplasmic reticulum calcium-ATPase inhibitor thapsigargin and by calcium. Not induced by the endoplasmic reticulum stress-inducing drugs brefeldin A, DTT and tunicamycin, or by heat stress and hydrogen peroxide.1 Publication

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Monomer.

By similarity

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
7091.BGIBMGA000475-TA

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q7Z1E6

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section indicates the positions and types of repeated sequence motifs or repeated domains within the protein.<p><a href='/help/repeat' target='_top'>More...</a></p>Repeati191 – 2021-1Sequence analysisAdd BLAST12
Repeati210 – 2211-2Sequence analysisAdd BLAST12
Repeati227 – 2381-3Sequence analysisAdd BLAST12
Repeati244 – 2551-4Sequence analysisAdd BLAST12
Repeati259 – 2692-1Sequence analysisAdd BLAST11
Repeati273 – 2832-2Sequence analysisAdd BLAST11
Repeati287 – 2972-3Sequence analysisAdd BLAST11

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni20 – 197N-domainSequence analysisAdd BLAST178
Regioni191 – 2554 X approximate repeatsSequence analysisAdd BLAST65
Regioni198 – 308P-domainSequence analysisAdd BLAST111
Regioni207 – 257DisorderedSequence analysisAdd BLAST51
Regioni259 – 2973 X approximate repeatsSequence analysisAdd BLAST39
Regioni309 – 398C-domainSequence analysisAdd BLAST90
Regioni334 – 398DisorderedSequence analysisAdd BLAST65

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi395 – 398Prevents secretion from ERSequence analysis4

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular type of amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi207 – 248Basic and acidic residuesSequence analysisAdd BLAST42
Compositional biasi334 – 372Basic and acidic residuesSequence analysisAdd BLAST39
Compositional biasi373 – 398Acidic residuesSequence analysisAdd BLAST26

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>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

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the calreticulin family.Sequence analysis

Keywords - Domaini

Repeat, Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0674, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_018224_0_2_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q7Z1E6

Database of Orthologous Groups

More...
OrthoDBi
822188at2759

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.10.250.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
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

The PANTHER Classification System

More...
PANTHERi
PTHR11073, PTHR11073, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00262, Calreticulin, 2 hits

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF002356, Calreticulin, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00626, CALRETICULIN

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF49899, SSF49899, 1 hit
SSF63887, SSF63887, 1 hit

PROSITE; a protein domain and family database

More...
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

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

Q7Z1E6-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKAVVLVVVS LLALSSINCD VFFEEKFPDD SWESNWVYSE HPGKEFGKFK
60 70 80 90 100
LTAGKFFSDP EDDKGLKTSE DARFYALSRK FKPFSNEGKP LVVQFTVKHE
110 120 130 140 150
QDIDCGGGYL KVFDCKLEQK DMHGETPYEI MFGPDICGPG TKKVHVIFSY
160 170 180 190 200
KGKNHLIKKD IRCKDDVYTH LYTLIVKPDN TYEVLIDNEK VESGDLEADW
210 220 230 240 250
DFLPNKKIKD PEAKKPEDWD DKPTIPDPED KKPEDWDKPE HIPDPDATKP
260 270 280 290 300
EDWDDEMDGE WEPPMIDNPD YKGVWAPKQI DNPAYKGPWV HPEIDNPEYT
310 320 330 340 350
PDSNLYKRDE ICAVGLDLWQ VKSGTIFDDF LITDDPAAAK ERGEVIKKRQ
360 370 380 390
EGEKKMKSEQ DEAEREKEKA EKPDDEEDDE DLDDETGDAA PVEEHDEL
Length:398
Mass (Da):45,802
Last modified:October 1, 2003 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i0BC049839F5950EA
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti36W → K AA sequence (PubMed:11280994).Curated1
Sequence conflicti41H → A AA sequence (PubMed:11280994).Curated1
Sequence conflicti45E → D AA sequence (PubMed:11280994).Curated1
Sequence conflicti47G → E AA sequence (PubMed:11280994).Curated1
Sequence conflicti49F → K AA sequence (PubMed:11280994).Curated1
Sequence conflicti205N → P in BAC57964 (Ref. 3) Curated1
Sequence conflicti285Y → F in BAC57964 (Ref. 3) Curated1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AY297158 mRNA Translation: AAP50845.1
AB090887 mRNA Translation: BAC57964.1

NCBI Reference Sequences

More...
RefSeqi
NP_001037075.1, NM_001043610.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
692629

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
bmor:692629

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY297158 mRNA Translation: AAP50845.1
AB090887 mRNA Translation: BAC57964.1
RefSeqiNP_001037075.1, NM_001043610.1

3D structure databases

SMRiQ7Z1E6
ModBaseiSearch...

Protein-protein interaction databases

STRINGi7091.BGIBMGA000475-TA

Proteomic databases

PRIDEiQ7Z1E6

Genome annotation databases

GeneIDi692629
KEGGibmor:692629

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
45841

Phylogenomic databases

eggNOGiKOG0674, Eukaryota
HOGENOMiCLU_018224_0_2_1
InParanoidiQ7Z1E6
OrthoDBi822188at2759

Family and domain databases

Gene3Di2.10.250.10, 1 hit
InterProiView protein in InterPro
IPR001580, Calret/calnex
IPR018124, Calret/calnex_CS
IPR009169, Calreticulin
IPR009033, Calreticulin/calnexin_P_dom_sf
IPR013320, ConA-like_dom_sf
PANTHERiPTHR11073, PTHR11073, 1 hit
PfamiView protein in Pfam
PF00262, Calreticulin, 2 hits
PIRSFiPIRSF002356, Calreticulin, 1 hit
PRINTSiPR00626, CALRETICULIN
SUPFAMiSSF49899, SSF49899, 1 hit
SSF63887, SSF63887, 1 hit
PROSITEiView protein in PROSITE
PS00803, CALRETICULIN_1, 1 hit
PS00804, CALRETICULIN_2, 1 hit
PS00805, CALRETICULIN_REPEAT, 3 hits
PS00014, ER_TARGET, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiCALR_BOMMO
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q7Z1E6
Secondary accession number(s): P82199, Q869E0
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 6, 2007
Last sequence update: October 1, 2003
Last modified: June 2, 2021
This is version 83 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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