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Entry version 108 (29 Sep 2021)
Sequence version 2 (22 Sep 2009)
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Protein

LDLR chaperone boca

Gene

boca

Organism
Drosophila melanogaster (Fruit fly)
Status
Reviewed-Annotation score:

Annotation score:5 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

Chaperone specifically assisting the folding of beta-propeller/EGF modules within the family of low-density lipoprotein receptors (LDLRs). Acts as a modulator of the Wg pathway, since some LDLRs are coreceptors for the canonical Wnt pathway.

1 Publication

<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

  • identical protein binding Source: IntAct

GO - Biological processi

  • endoplasmic reticulum to Golgi vesicle-mediated transport Source: FlyBase
  • protein folding Source: FlyBase
  • protein targeting to membrane Source: FlyBase
  • Wnt signaling pathway Source: UniProtKB-KW

<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
Biological processWnt signaling pathway

<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:
LDLR chaperone boca
<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:boca
ORF Names:CG30498
<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>OrganismiDrosophila melanogaster (Fruit fly)
<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 identifieri7227 [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 lineageiEukaryotaMetazoaEcdysozoaArthropodaHexapodaInsectaPterygotaNeopteraEndopterygotaDipteraBrachyceraMuscomorphaEphydroideaDrosophilidaeDrosophilaSophophora
<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
  • UP000000803 <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: Chromosome 2R

Organism-specific databases

Drosophila genome database

More...
FlyBasei
FBgn0004132, boca

Eukaryotic Pathogen, Vector and Host Database Resources

More...
VEuPathDBi
VectorBase:FBgn0004132

<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 provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi49W → R in boca1; induces lethality. 1 Publication1

<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 – 18Sequence analysisAdd BLAST18
<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_000038502119 – 180LDLR chaperone bocaAdd BLAST162

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
Q8T9B6

PRoteomics IDEntifications database

More...
PRIDEi
Q8T9B6

<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

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
FBgn0004132, Expressed in eye disc (Drosophila) and 34 other tissues

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q8T9B6, DM

<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).

Interacts with Arrow and Yolkless.

By similarity1 Publication

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Q8T9B6
With#Exp.IntAct
itself3EBI-15914860,EBI-15914860

GO - Molecular functioni

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
71878, 76 interactors

Database of interacting proteins

More...
DIPi
DIP-59112N

The Eukaryotic Linear Motif resource for Functional Sites in Proteins

More...
ELMi
Q8T9B6

Protein interaction database and analysis system

More...
IntActi
Q8T9B6, 3 interactors

STRING: functional protein association networks

More...
STRINGi
7227.FBpp0088027

<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

Secondary structure

1180
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

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

More...
SMRi
Q8T9B6

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
Q8T9B6

<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

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>Regioni48 – 78DisorderedSequence analysisAdd BLAST31
Regioni93 – 166Structured coreBy similarityAdd BLAST74

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>Motifi177 – 180Prevents secretion from ER4

<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

The LDLR maturation activity resides in the N- and C-terminal unstructured regions.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 MESD family.Curated

Keywords - Domaini

Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG4357, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00390000000993

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_111621_1_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q8T9B6

Identification of Orthologs from Complete Genome Data

More...
OMAi
RPQPKID

Database of Orthologous Groups

More...
OrthoDBi
1590303at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q8T9B6

Family and domain databases

Database of protein disorder

More...
DisProti
DP02312

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR019330, MESD

The PANTHER Classification System

More...
PANTHERi
PTHR17600, PTHR17600, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF10185, Mesd, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
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.

Q8T9B6-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MQTRLVLLLL ALTPLVLAKK FKEEEKPAWA KKDIRDYSEA DLERLLDQWE
60 70 80 90 100
EDEEPLEDDE LPEHLRPQPK LDLSNLDSKS PEDLLKVSKK GRTLMTFVSV
110 120 130 140 150
TGNPTREESD TITKLWQTSL WNNHIQAERY MVDDNRAIFL FKDGTQAWDA
160 170 180
KDFLIEQERC KGVTIENKEY PGVNAKKDEL
Length:180
Mass (Da):21,002
Last modified:September 22, 2009 - v2
<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:iB51E057C901A6546
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 conflicti15L → V in AAL39985 (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
AE013599 Genomic DNA Translation: AAF59229.2
AY069840 mRNA Translation: AAL39985.1
BT044294 mRNA Translation: ACH92359.1

NCBI Reference Sequences

More...
RefSeqi
NP_724578.1, NM_165541.2

Genome annotation databases

Ensembl metazoan genome annotation project

More...
EnsemblMetazoai
FBtr0088953; FBpp0088027; FBgn0004132

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
48986

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
dme:Dmel_CG30498

UCSC genome browser

More...
UCSCi
CG30498-RA, d. melanogaster

<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
AE013599 Genomic DNA Translation: AAF59229.2
AY069840 mRNA Translation: AAL39985.1
BT044294 mRNA Translation: ACH92359.1
RefSeqiNP_724578.1, NM_165541.2

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3OFEX-ray2.29A/B88-172[»]
3OFFX-ray2.00A89-172[»]
SMRiQ8T9B6
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi71878, 76 interactors
DIPiDIP-59112N
ELMiQ8T9B6
IntActiQ8T9B6, 3 interactors
STRINGi7227.FBpp0088027

Proteomic databases

PaxDbiQ8T9B6
PRIDEiQ8T9B6

Protocols and materials databases

The DNASU plasmid repository

More...
DNASUi
48986

Genome annotation databases

EnsemblMetazoaiFBtr0088953; FBpp0088027; FBgn0004132
GeneIDi48986
KEGGidme:Dmel_CG30498
UCSCiCG30498-RA, d. melanogaster

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
48986
FlyBaseiFBgn0004132, boca
VEuPathDBiVectorBase:FBgn0004132

Phylogenomic databases

eggNOGiKOG4357, Eukaryota
GeneTreeiENSGT00390000000993
HOGENOMiCLU_111621_1_0_1
InParanoidiQ8T9B6
OMAiRPQPKID
OrthoDBi1590303at2759
PhylomeDBiQ8T9B6

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...
BioGRID-ORCSi
48986, 0 hits in 1 CRISPR screen
EvolutionaryTraceiQ8T9B6

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...
GenomeRNAii
48986

Protein Ontology

More...
PROi
PR:Q8T9B6

Gene expression databases

BgeeiFBgn0004132, Expressed in eye disc (Drosophila) and 34 other tissues
GenevisibleiQ8T9B6, DM

Family and domain databases

DisProtiDP02312
InterProiView protein in InterPro
IPR019330, MESD
PANTHERiPTHR17600, PTHR17600, 1 hit
PfamiView protein in Pfam
PF10185, Mesd, 1 hit
PROSITEiView protein in PROSITE
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 nameiMESD_DROME
<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: Q8T9B6
Secondary accession number(s): A1Z712
<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: September 22, 2009
Last sequence update: September 22, 2009
Last modified: September 29, 2021
This is version 108 of the entry and version 2 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)
Annotation programDrosophila annotation project

<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

3D-structure, Reference proteome

Documents

  1. Drosophila
    Drosophila: entries, gene names and cross-references to FlyBase
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families
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