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Entry version 147 (02 Jun 2021)
Sequence version 1 (01 Feb 1994)
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Protein

Cathepsin D

Gene

CTSD

Organism
Gallus gallus (Chicken)
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

Acid protease active in intracellular protein breakdown. In chicken it is a key enzyme for yolk formation as it is capable of catalyzing intra oocytic break down of protein components of both vitellogenin and VLDL.

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

  • Specificity similar to, but narrower than, that of pepsin A. Does not cleave the 4-Gln-|-His-5 bond in B chain of insulin. EC:3.4.23.5

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei96PROSITE-ProRule annotation1
Active sitei283PROSITE-ProRule annotation1

<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 functionAspartyl protease, Hydrolase, Protease

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-GGA-2132295, MHC class II antigen presentation
R-GGA-5683826, Surfactant metabolism
R-GGA-6798695, Neutrophil degranulation

Protein family/group databases

MEROPS protease database

More...
MEROPSi
A01.009

<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%5Fand%5Ftaxonomy%5Fsection">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:
Cathepsin D (EC:3.4.23.5)
Cleaved into the following 2 chains:
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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:CTSD
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiGallus gallus (Chicken)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri9031 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiArchelosauriaArchosauriaDinosauriaSaurischiaTheropodaCoelurosauriaAvesNeognathaeGalloanseraeGalliformesPhasianidaePhasianinaeGallus
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000000539 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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 5

<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

Lysosome

<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 – 20Sequence analysisAdd BLAST20
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section describes a propeptide, which is a part of a protein that is cleaved during maturation or activation. Once cleaved, a propeptide generally has no independent biological function.<p><a href='/help/propep' target='_top'>More...</a></p>PropeptideiPRO_000002596621 – 63Activation peptideSequence analysisAdd BLAST43
<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_000002596764 – 398Cathepsin DAdd BLAST335
ChainiPRO_000002596864 – 157Cathepsin D light chainCuratedAdd BLAST94
ChainiPRO_0000025969158 – 398Cathepsin D heavy chainCuratedAdd BLAST241

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 bondi109 ↔ 116By similarity
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi133N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi251N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi274 ↔ 278By similarity
Disulfide bondi317 ↔ 354By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein, Zymogen

Proteomic databases

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

More...
PaxDbi
Q05744

PRoteomics IDEntifications database

More...
PRIDEi
Q05744

<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

Oocytic yolk, preovulatory follicles, liver.

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSGALG00000006613, Expressed in spleen and 14 other tissues

<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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Consists of a light chain and a heavy chain.

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
9031.ENSGALP00000010662

<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
Q05744

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 <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">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>Domaini78 – 395Peptidase A1PROSITE-ProRule annotationAdd BLAST318

<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 peptidase A1 family.Curated

Keywords - Domaini

Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1339, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000155733

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_013253_3_3_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q05744

Identification of Orthologs from Complete Genome Data

More...
OMAi
IGGQYVV

Database of Orthologous Groups

More...
OrthoDBi
1619495at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q05744

TreeFam database of animal gene trees

More...
TreeFami
TF314990

Family and domain databases

Conserved Domains Database

More...
CDDi
cd05490, Cathepsin_D2, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.40.70.10, 3 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001461, Aspartic_peptidase_A1
IPR001969, Aspartic_peptidase_AS
IPR033144, Cathepsin_D
IPR033121, PEPTIDASE_A1
IPR021109, Peptidase_aspartic_dom_sf

The PANTHER Classification System

More...
PANTHERi
PTHR47966, PTHR47966, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00026, Asp, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00792, PEPSIN

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF50630, SSF50630, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00141, ASP_PROTEASE, 2 hits
PS51767, PEPTIDASE_A1, 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%5Flength">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%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

Q05744-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAPRGLLVLL LLALVGPCAA LIRIPLTKFT STRRMLTEVG SEIPDMNAIT
60 70 80 90 100
QFLKFKLGFA DLAEPTPEIL KNYMDAQYYG EIGIGTPPQK FTVVFDTGSS
110 120 130 140 150
NLWVPSVHCH LLDIACLLHH KYDASKSSTY VENGTEFAIH YGTGSLSGFL
160 170 180 190 200
SQDTVTLGNL KIKNQIFGEA VKQPGITFIA AKFDGILGMA FPRISVDKVT
210 220 230 240 250
PFFDNVMQQK LIEKNIFSFY LNRDPTAQPG GELLLGGTDP KYYSGDFSWV
260 270 280 290 300
NVTRKAYWQV HMDSVDVANG LTLCKGGCEA IVDTGTSLIT GPTKEVKELQ
310 320 330 340 350
TAIGAKPLIK GQYVISCDKI SSLPVVTLML GGKPYQLTGE QYVFKVSAQG
360 370 380 390
ETICLSGFSG LDVPPPGGPL WILGDVFIGP YYTVFDRDND SVGFAKCV
Length:398
Mass (Da):43,298
Last modified:February 1, 1994 - 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:i584C99E2755AA2B1
GO

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
S49650 mRNA Translation: AAB24157.1

Protein sequence database of the Protein Information Resource

More...
PIRi
I51185

NCBI Reference Sequences

More...
RefSeqi
NP_990508.1, NM_205177.1

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSGALT00000010676; ENSGALP00000010662; ENSGALG00000006613

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
396090

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
gga:396090

<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
S49650 mRNA Translation: AAB24157.1
PIRiI51185
RefSeqiNP_990508.1, NM_205177.1

3D structure databases

SMRiQ05744
ModBaseiSearch...

Protein-protein interaction databases

STRINGi9031.ENSGALP00000010662

Protein family/group databases

MEROPSiA01.009

Proteomic databases

PaxDbiQ05744
PRIDEiQ05744

Genome annotation databases

EnsembliENSGALT00000010676; ENSGALP00000010662; ENSGALG00000006613
GeneIDi396090
KEGGigga:396090

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
1509

Phylogenomic databases

eggNOGiKOG1339, Eukaryota
GeneTreeiENSGT00940000155733
HOGENOMiCLU_013253_3_3_1
InParanoidiQ05744
OMAiIGGQYVV
OrthoDBi1619495at2759
PhylomeDBiQ05744
TreeFamiTF314990

Enzyme and pathway databases

ReactomeiR-GGA-2132295, MHC class II antigen presentation
R-GGA-5683826, Surfactant metabolism
R-GGA-6798695, Neutrophil degranulation

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q05744

Gene expression databases

BgeeiENSGALG00000006613, Expressed in spleen and 14 other tissues

Family and domain databases

CDDicd05490, Cathepsin_D2, 1 hit
Gene3Di2.40.70.10, 3 hits
InterProiView protein in InterPro
IPR001461, Aspartic_peptidase_A1
IPR001969, Aspartic_peptidase_AS
IPR033144, Cathepsin_D
IPR033121, PEPTIDASE_A1
IPR021109, Peptidase_aspartic_dom_sf
PANTHERiPTHR47966, PTHR47966, 1 hit
PfamiView protein in Pfam
PF00026, Asp, 1 hit
PRINTSiPR00792, PEPSIN
SUPFAMiSSF50630, SSF50630, 1 hit
PROSITEiView protein in PROSITE
PS00141, ASP_PROTEASE, 2 hits
PS51767, PEPTIDASE_A1, 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 nameiCATD_CHICK
<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: Q05744
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 1, 1994
Last sequence update: February 1, 1994
Last modified: June 2, 2021
This is version 147 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)
Annotation programChordata Protein Annotation Program

<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. Peptidase families
    Classification of peptidase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families
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