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UniProtKB - P55059 (PDI_HUMIN)

Entry version 115 (25 May 2022)
Sequence version 1 (01 Oct 1996)
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Protein

Protein disulfide-isomerase

Gene
N/A
Organism
Humicola insolens (Soft-rot fungus)
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

Participates in the folding of proteins containing disulfide bonds, may be involved in glycosylation, prolyl hydroxylation and triglyceride transfer.

By similarity

<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

  • Catalyzes the rearrangement of -S-S- bonds in proteins. EC:5.3.4.1

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 sitei50NucleophileBy similarity1
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei51Contributes to redox potential valueBy similarity1
Sitei52Contributes to redox potential valueBy similarity1
Active sitei53NucleophileBy similarity1
Sitei113Lowers pKa of C-terminal Cys of first active siteBy similarity1
Active sitei385NucleophileBy similarity1
Sitei386Contributes to redox potential valueBy similarity1
Sitei387Contributes to redox potential valueBy similarity1
Active sitei388NucleophileBy similarity1
Sitei451Lowers pKa of C-terminal Cys of second active siteBy 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

Complete GO annotation on QuickGO ...

<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 functionIsomerase

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...BRENDAi		5.3.4.1, 2710

<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:
Protein disulfide-isomerase (EC:5.3.4.1)
Short name:
PDI
<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>OrganismiHumicola insolens (Soft-rot fungus)
<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 identifieri34413 [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 lineageiEukaryota › Fungi › Dikarya › Ascomycota › Pezizomycotina › Sordariomycetes › Sordariomycetidae › Sordariales › Chaetomiaceae › Humicola

<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 – 20Sequence analysisAdd BLAST20
<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_000003421521 – 505Protein disulfide-isomeraseAdd BLAST485

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 bondi50 ↔ 53Redox-activePROSITE-ProRule annotation
Disulfide bondi385 ↔ 388Redox-activePROSITE-ProRule annotation

Keywords - PTMi

Disulfide bond

<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

1505
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

AlphaFold Protein Structure Database

More...AlphaFoldDBi		P55059

Biological Magnetic Resonance Data Bank

More...BMRBi		P55059

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

More...SMRi		P55059

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		P55059

<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>Domaini21 – 128Thioredoxin 1PROSITE-ProRule annotationAdd BLAST108
Domaini335 – 465Thioredoxin 2PROSITE-ProRule annotationAdd BLAST131

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>Regioni470 – 505DisorderedSequence analysisAdd BLAST36

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>Motifi502 – 505Prevents secretion from ERPROSITE-ProRule annotation4

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 biasi474 – 488Polar residuesSequence analysisAdd BLAST15
Compositional biasi489 – 505Basic and acidic residuesSequence analysisAdd BLAST17

<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 protein disulfide isomerase family.Curated

Keywords - Domaini

Redox-active center, Repeat, Signal

Family and domain databases

Intrinsically Disordered proteins with Extensive Annotations and Literature

More...IDEALi		IID50214

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR005788, Disulphide_isomerase
IPR005792, Prot_disulphide_isomerase
IPR036249, Thioredoxin-like_sf
IPR017937, Thioredoxin_CS
IPR013766, Thioredoxin_domain

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00085, Thioredoxin, 2 hits

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF52833, SSF52833, 4 hits

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR01130, ER_PDI_fam, 1 hit
TIGR01126, pdi_dom, 2 hits

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00014, ER_TARGET, 1 hit
PS00194, THIOREDOXIN_1, 2 hits
PS51352, THIOREDOXIN_2, 2 hits

<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.

P55059-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MHKAQKFALG LLAAAAVATA SDVVQLKKDT FDDFIKTNDL VLAEFFAPWC 
        60         70         80         90        100
GHCKALAPEY EEAATTLKEK NIKLAKVDCT EETDLCQQHG VEGYPTLKVF 
       110        120        130        140        150
RGLDNVSPYK GQRKAAAITS YMIKQSLPAV SEVTKDNLEE FKKADKAVLV 
       160        170        180        190        200
AYVDASDKAS SEVFTQVAEK LRDNYPFGSS SDAALAEAEG VKAPAIVLYK 
       210        220        230        240        250
DFDEGKAVFS EKFEVEAIEK FAKTGATPLI GEIGPETYSD YMSAGIPLAY 
       260        270        280        290        300
IFAETAEERK ELSDKLKPIA EAQRGVINFG TIDAKAFGAH AGNLNLKTDK 
       310        320        330        340        350
FPAFAIQEVA KNQKFPFDQE KEITFEAIKA FVDDFVAGKI EPSIKSEPIP 
       360        370        380        390        400
EKQEGPVTVV VAKNYNEIVL DDTKDVLIEF YAPWCGHCKA LAPKYEELGA 
       410        420        430        440        450
LYAKSEFKDR VVIAKVDATA NDVPDEIQGF PTIKLYPAGA KGQPVTYSGS 
       460        470        480        490        500
RTVEDLIKFI AENGKYKAAI SEDAEETSSA TETTTETATK SEEAAKETAT 

EHDEL
Length:505
Mass (Da):55,114
Last modified:October 1, 1996 - 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:i27E7C0D1A61B5F95
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
S74296 mRNA Translation: AAC60578.1

Protein sequence database of the Protein Information Resource

More...PIRi		JC2291

<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
S74296 mRNA Translation: AAC60578.1
PIRiJC2291

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
2DJJNMR-A354-469[»]
2DJKNMR-A228-355[»]
2KP1NMR-A354-469[»]
2KP2NMR-A228-355[»]
2RUENMR-A354-469[»]
2RUFNMR-A354-469[»]
3WT1X-ray1.85A/B/C/D228-469[»]
3WT2X-ray3.30A/B/C228-469[»]
5CRWX-ray1.60A228-469[»]
AlphaFoldDBiP55059
BMRBiP55059
SMRiP55059
ModBaseiSearch...
PDBe-KBiSearch...

Enzyme and pathway databases

BRENDAi5.3.4.1, 2710

Miscellaneous databases

EvolutionaryTraceiP55059

Family and domain databases

IDEALiIID50214
InterProiView protein in InterPro
IPR005788, Disulphide_isomerase
IPR005792, Prot_disulphide_isomerase
IPR036249, Thioredoxin-like_sf
IPR017937, Thioredoxin_CS
IPR013766, Thioredoxin_domain
PfamiView protein in Pfam
PF00085, Thioredoxin, 2 hits
SUPFAMiSSF52833, SSF52833, 4 hits
TIGRFAMsiTIGR01130, ER_PDI_fam, 1 hit
TIGR01126, pdi_dom, 2 hits
PROSITEiView protein in PROSITE
PS00014, ER_TARGET, 1 hit
PS00194, THIOREDOXIN_1, 2 hits
PS51352, THIOREDOXIN_2, 2 hits

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 nameiPDI_HUMIN
<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: P55059
<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: October 1, 1996
Last sequence update: October 1, 1996
Last modified: May 25, 2022
This is version 115 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 programFungal 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

3D-structure

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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