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UniProtKB - P09655 (ISK1_RAT)

Entry version 159 (29 Sep 2021)
Sequence version 2 (01 Apr 1990)
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Protein

Serine protease inhibitor Kazal-type 1

Gene

Spink1

Organism
Rattus norvegicus (Rat)
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

Serine protease inhibitor which exhibits anti-trypsin activity (PubMed:3202973, PubMed:3597401).

In the pancreas, protects against trypsin-catalyzed premature activation of zymogens (By similarity).

By similarity2 Publications

In the male reproductive tract, binds to sperm heads where it modulates sperm capacitance by inhibiting calcium uptake and nitrogen oxide (NO) production (By similarity).

By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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>Sitei41 – 42Reactive bond for trypsinBy similarity2
Sitei43 – 44Necessary for sperm bindingBy similarity2

<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 ...

GO - Biological processi

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 functionProtease inhibitor, Serine protease inhibitor

<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:
Serine protease inhibitor Kazal-type 1Imported
Alternative name(s):
Cholecystokinin-releasing peptide1 Publication
Monitor peptide1 Publication
Pancreatic secretory trypsin inhibitor1 Publication
Short name:
PSTI-I1 Publication
<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:Spink1Imported
<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>OrganismiRattus norvegicus (Rat)
<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 identifieri10116 [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 › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Rattus
<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
  • UP000002494 <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 18

Organism-specific databases

Rat genome database

More...RGDi		3749, Spink1

<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

Secreted

<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 – 182 PublicationsAdd 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_000001655819 – 79Serine protease inhibitor Kazal-type 1Add BLAST61

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 bondi32 ↔ 61PROSITE-ProRule annotation
Disulfide bondi39 ↔ 58PROSITE-ProRule annotation
Disulfide bondi47 ↔ 79PROSITE-ProRule annotation

Keywords - PTMi

Disulfide bond

Proteomic databases

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

More...PaxDbi		P09655

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		P09655

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...PhosphoSitePlusi		P09655

<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		ENSRNOG00000013464, Expressed in pancreas and 15 other tissues

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		P09655, RN

<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

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		246952, 1 interactor

STRING: functional protein association networks

More...STRINGi		10116.ENSRNOP00000018110

<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		P09655

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>Domaini26 – 79Kazal-likePROSITE-ProRule annotationAdd BLAST54

Keywords - Domaini

Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG3649, Eukaryota

Ensembl GeneTree

More...GeneTreei		ENSGT00530000064228

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_169765_2_1_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P09655

Identification of Orthologs from Complete Genome Data

More...OMAi		EPKCESH

Database of Orthologous Groups

More...OrthoDBi		1591004at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		P09655

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR002350, Kazal_dom
IPR036058, Kazal_dom_sf

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00050, Kazal_1, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00280, KAZAL, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF100895, SSF100895, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00282, KAZAL_1, 1 hit
PS51465, KAZAL_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%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.

P09655-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKVAIIFLLS ALALLSLAGN PPAEVNGKTP NCPKQIMGCP RIYDPVCGTN 
        60         70 
GITYPSECSL CFENRKFGTS IHIQRRGTC
Length:79
Mass (Da):8,528
Last modified:April 1, 1990 - 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:i5816D55DF7B57874
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 conflicti78T → G AA sequence (PubMed:3597401).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
X59696 mRNA Translation: CAA42217.1
M22162 mRNA Translation: AAA41629.1
M35299 mRNA Translation: AAA74479.1
M35300 mRNA Translation: AAA41977.1
M27882 mRNA Translation: AAA41975.1
D11321 Genomic DNA Translation: BAA01944.1

Protein sequence database of the Protein Information Resource

More...PIRi		S09602, TIRT1

NCBI Reference Sequences

More...RefSeqi		NP_036806.1, NM_012674.2

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENSRNOT00000018110; ENSRNOP00000018110; ENSRNOG00000013464

Database of genes from NCBI RefSeq genomes

More...GeneIDi		24833

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		rno:24833

UCSC genome browser

More...UCSCi		RGD:3749, rat

<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
X59696 mRNA Translation: CAA42217.1
M22162 mRNA Translation: AAA41629.1
M35299 mRNA Translation: AAA74479.1
M35300 mRNA Translation: AAA41977.1
M27882 mRNA Translation: AAA41975.1
D11321 Genomic DNA Translation: BAA01944.1
PIRiS09602, TIRT1
RefSeqiNP_036806.1, NM_012674.2

3D structure databases

SMRiP09655
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi246952, 1 interactor
STRINGi10116.ENSRNOP00000018110

PTM databases

iPTMnetiP09655
PhosphoSitePlusiP09655

Proteomic databases

PaxDbiP09655

Genome annotation databases

EnsembliENSRNOT00000018110; ENSRNOP00000018110; ENSRNOG00000013464
GeneIDi24833
KEGGirno:24833
UCSCiRGD:3749, rat

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		6690
RGDi3749, Spink1

Phylogenomic databases

eggNOGiKOG3649, Eukaryota
GeneTreeiENSGT00530000064228
HOGENOMiCLU_169765_2_1_1
InParanoidiP09655
OMAiEPKCESH
OrthoDBi1591004at2759
PhylomeDBiP09655

Miscellaneous databases

Protein Ontology

More...PROi		PR:P09655

Gene expression databases

BgeeiENSRNOG00000013464, Expressed in pancreas and 15 other tissues
GenevisibleiP09655, RN

Family and domain databases

InterProiView protein in InterPro
IPR002350, Kazal_dom
IPR036058, Kazal_dom_sf
PfamiView protein in Pfam
PF00050, Kazal_1, 1 hit
SMARTiView protein in SMART
SM00280, KAZAL, 1 hit
SUPFAMiSSF100895, SSF100895, 1 hit
PROSITEiView protein in PROSITE
PS00282, KAZAL_1, 1 hit
PS51465, KAZAL_2, 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 nameiISK1_RAT
<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: P09655
Secondary accession number(s): P13072
<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: July 1, 1989
Last sequence update: April 1, 1990
Last modified: September 29, 2021
This is version 159 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 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
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