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Entry version 107 (13 Nov 2019)
Sequence version 2 (10 Aug 2010)
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Protein

Ubiquitin-60S ribosomal protein L40

Gene

ubqB

Organism
Dictyostelium discoideum (Slime mold)
Status
Reviewed-Annotation score:

Annotation score:4 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

Ubiquitin: exists either covalently attached to another protein, or free (unanchored). When covalently bound, it is conjugated to target proteins via an isopeptide bond either as a monomer (monoubiquitin), a polymer linked via different Lys residues of the ubiquitin (polyubiquitin chains) or a linear polymer linked via the initiator Met of the ubiquitin (linear polyubiquitin chains). Polyubiquitin chains, when attached to a target protein, have different functions depending on the Lys residue of the ubiquitin that is linked: Lys-48-linked is involved in protein degradation via the proteasome. Linear polymer chains formed via attachment by the initiator Met lead to cell signaling. Ubiquitin is usually conjugated to Lys residues of target proteins, however, in rare cases, conjugation to Cys or Ser residues has been observed. When polyubiquitin is free (unanchored-polyubiquitin), it also has distinct roles, such as in activation of protein kinases, and in signaling (By similarity).By similarity
60S ribosomal protein L40: component of the 60S subunit of the ribosome.By similarity

Miscellaneous

Ubiquitin is synthesized as a polyubiquitin precursor with exact head to tail repeats. Some ubiquitin genes contain a single copy of ubiquitin fused to a ribosomal protein. In D.discoideum there are 9 genes: ubqA: 5 copies of Ub and a final Asn; ubqB: 1 copy of Ub and ribosomal protein L40; ubqC: 1 copy of Ub and ribosomal protein S27A; ubqD: 3 copies of Ub and a final Leu; ubqF: 7 copies of Ub and a final Asn; ubqG: 5 copies of Ub and a final Leu; ubqH: 5 copies of Ub and a final Asn; ubqI: 4 copies of Ub and a final Asn; ubqJ: 4 copies of Ub and a final Asn.

<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 functionRibonucleoprotein, Ribosomal protein

<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:
Ubiquitin-60S ribosomal protein L40
Alternative name(s):
Ubiquitin A-52 residue ribosomal protein fusion product 1
Cleaved into the following 2 chains:
Alternative name(s):
CEP52
<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:ubqB
ORF Names:DDB_G0280755
<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>OrganismiDictyostelium discoideum (Slime mold)
<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 identifieri44689 [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 lineageiEukaryotaAmoebozoaEvoseaEumycetozoaDictyostelidsDictyostelialesDictyosteliaceaeDictyostelium
<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
  • UP000002195 <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> Componentsi: Chromosome 3, Unassembled WGS sequence

Organism-specific databases

Dictyostelium discoideum online informatics resource

More...
dictyBasei
DDB_G0280755 ubqB

<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

Ubiquitin :

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm, Nucleus

<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 describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00003964461 – 76UbiquitinAdd BLAST76
ChainiPRO_000013876277 – 12860S ribosomal protein L40Add BLAST52

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section describes <strong>covalent linkages</strong> of various types formed <strong>between two proteins (interchain cross-links)</strong> or <strong>between two parts of the same protein (intrachain cross-links)</strong>, except the disulfide bonds that are annotated in the <a href="http://www.uniprot.org/manual/disulfid">'Disulfide bond'</a> subsection.<p><a href='/help/crosslnk' target='_top'>More...</a></p>Cross-linki48Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)By similarity
Cross-linki76Glycyl lysine isopeptide (Gly-Lys) (interchain with K-? in acceptor proteins)PROSITE-ProRule annotation

Keywords - PTMi

Isopeptide bond, Ubl conjugation

Proteomic databases

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

More...
PaxDbi
P14794

PRoteomics IDEntifications database

More...
PRIDEi
P14794

<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

Ribosomal protein L40 is part of the 60S ribosomal subunit.

By similarity

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
44689.DDB0214925

<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

1128
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
P14794

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
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 <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini1 – 76Ubiquitin-likePROSITE-ProRule annotationAdd BLAST76

<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

In the N-terminal section; belongs to the ubiquitin family.Curated
In the C-terminal section; belongs to the eukaryotic ribosomal protein eL40 family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0003 Eukaryota
COG1552 LUCA
COG5272 LUCA

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P14794

KEGG Orthology (KO)

More...
KOi
K02927

Identification of Orthologs from Complete Genome Data

More...
OMAi
AREYNQN

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P14794

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.20.28.70, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR038587 L40e_sf
IPR001975 Ribosomal_L40e
IPR011332 Ribosomal_zn-bd
IPR000626 Ubiquitin-like_dom
IPR029071 Ubiquitin-like_domsf
IPR019954 Ubiquitin_CS
IPR019956 Ubiquitin_dom

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF01020 Ribosomal_L40e, 1 hit
PF00240 ubiquitin, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00348 UBIQUITIN

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM01377 Ribosomal_L40e, 1 hit
SM00213 UBQ, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF54236 SSF54236, 1 hit
SSF57829 SSF57829, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00299 UBIQUITIN_1, 1 hit
PS50053 UBIQUITIN_2, 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.

P14794-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MQIFVKTLTG KTITLEVEGS DNIENVKAKI QDKEGIPPDQ QRLIFAGKQL
60 70 80 90 100
EDGRTLSDYN IQKESTLHLV LRLRGGIEPS LVILARKYKC DKMICRKCYA
110 120
RLHPRAVNCR KKKCGHSNNL RPKKKLLK
Length:128
Mass (Da):14,671
Last modified:August 10, 2010 - 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:iC27245730CEA5C84
GO

<p>This subsection of the ‘Sequence’ section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence CAA28408 differs from that shown. Reason: Frameshift.Curated

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
X07210 mRNA Translation: CAA30183.1
M23749 mRNA Translation: AAA33263.1
AAFI02000038 Genomic DNA Translation: EAL67035.1
X04702 mRNA Translation: CAA28408.1 Frameshift.

Protein sequence database of the Protein Information Resource

More...
PIRi
S00357 UQDOR

NCBI Reference Sequences

More...
RefSeqi
XP_641020.1, XM_635928.1

Genome annotation databases

Ensembl protists genome annotation project

More...
EnsemblProtistsi
EAL67035; EAL67035; DDB_G0280755

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
8622722

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ddi:DDB_G0280755

<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
X07210 mRNA Translation: CAA30183.1
M23749 mRNA Translation: AAA33263.1
AAFI02000038 Genomic DNA Translation: EAL67035.1
X04702 mRNA Translation: CAA28408.1 Frameshift.
PIRiS00357 UQDOR
RefSeqiXP_641020.1, XM_635928.1

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
5AN9electron microscopy3.30H77-128[»]
5ANBelectron microscopy4.10H77-128[»]
5ANCelectron microscopy4.20H77-128[»]
6QKLelectron microscopy3.30H77-128[»]
SMRiP14794
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

STRINGi44689.DDB0214925

Proteomic databases

PaxDbiP14794
PRIDEiP14794

Genome annotation databases

EnsemblProtistsiEAL67035; EAL67035; DDB_G0280755
GeneIDi8622722
KEGGiddi:DDB_G0280755

Organism-specific databases

dictyBaseiDDB_G0280755 ubqB

Phylogenomic databases

eggNOGiKOG0003 Eukaryota
COG1552 LUCA
COG5272 LUCA
InParanoidiP14794
KOiK02927
OMAiAREYNQN
PhylomeDBiP14794

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P14794

Family and domain databases

Gene3Di2.20.28.70, 1 hit
InterProiView protein in InterPro
IPR038587 L40e_sf
IPR001975 Ribosomal_L40e
IPR011332 Ribosomal_zn-bd
IPR000626 Ubiquitin-like_dom
IPR029071 Ubiquitin-like_domsf
IPR019954 Ubiquitin_CS
IPR019956 Ubiquitin_dom
PfamiView protein in Pfam
PF01020 Ribosomal_L40e, 1 hit
PF00240 ubiquitin, 1 hit
PRINTSiPR00348 UBIQUITIN
SMARTiView protein in SMART
SM01377 Ribosomal_L40e, 1 hit
SM00213 UBQ, 1 hit
SUPFAMiSSF54236 SSF54236, 1 hit
SSF57829 SSF57829, 1 hit
PROSITEiView protein in PROSITE
PS00299 UBIQUITIN_1, 1 hit
PS50053 UBIQUITIN_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

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 nameiRL40_DICDI
<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: P14794
Secondary accession number(s): P08618
, Q54HH5, Q54L38, Q54SE1, Q54SP3, Q54UW7, Q54WJ3, Q550W7, Q55DZ5, Q86KQ4
<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: April 1, 1990
Last sequence update: August 10, 2010
Last modified: November 13, 2019
This is version 107 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)

<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, Complete proteome, Reference proteome

Documents

  1. Ribosomal proteins
    Ribosomal proteins families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families
  3. Dictyostelium discoideum
    Dictyostelium discoideum: entries, gene names and cross-references to dictyBase
  4. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
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