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Entry version 126 (07 Oct 2020)
Sequence version 2 (22 Sep 2009)
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Protein

Chitinase 4

Gene

Cht4

Organism
Oryza sativa subsp. japonica (Rice)
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 transcript 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

Hydrolyzes chitin and may function in reproductive organs during embryogenesis and seed maturation.

1 Publication

<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

  • Random endo-hydrolysis of N-acetyl-beta-D-glucosaminide (1->4)-beta-linkages in chitin and chitodextrins. EC:3.2.1.14

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 sitei148Proton donorBy 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

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 functionGlycosidase, Hydrolase
Biological processCarbohydrate metabolism, Chitin degradation, Plant defense, Polysaccharide degradation
LigandChitin-binding

Protein family/group databases

Carbohydrate-Active enZymes

More...
CAZyi
CBM18, Carbohydrate-Binding Module Family 18
GH19, Glycoside Hydrolase Family 19

<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:
Chitinase 4 (EC:3.2.1.14)
Alternative name(s):
OsChia2b
Pathogenesis related (PR)-3 chitinase 4
<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:Cht4
Ordered Locus Names:Os04g0493400, LOC_Os04g41620
ORF Names:OsJ_15306, OSJNBb0091E11.8
<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>OrganismiOryza sativa subsp. japonica (Rice)
<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 identifieri39947 [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 lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaLiliopsidaPoalesPoaceaeBOP cladeOryzoideaeOryzeaeOryzinaeOryzaOryza sativa
<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
  • UP000007752 <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 4
  • UP000059680 Componenti: Chromosome 4
  • UP000000763 Componenti: Chromosome 4

<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 – 27Sequence analysisAdd BLAST27
<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_000038346328 – 285Chitinase 4Add BLAST258

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 bondi30 ↔ 38PROSITE-ProRule annotation
Disulfide bondi32 ↔ 44PROSITE-ProRule annotation
Disulfide bondi37 ↔ 51PROSITE-ProRule annotation
Disulfide bondi55 ↔ 60PROSITE-ProRule annotation
Disulfide bondi104 ↔ 153PROSITE-ProRule annotation
Disulfide bondi166 ↔ 175PROSITE-ProRule annotation
Disulfide bondi253 ↔ 285PROSITE-ProRule annotation

Keywords - PTMi

Disulfide bond

Proteomic databases

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

More...
PaxDbi
O04138

PRoteomics IDEntifications database

More...
PRIDEi
O04138

<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

Expressed at low levels in leaves, sheaths and meristems.1 Publication

<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

STRING: functional protein association networks

More...
STRINGi
4530.OS04T0493400-01

<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
O04138

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>Domaini28 – 62Chitin-binding type-1PROSITE-ProRule annotationAdd BLAST35

<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

Keywords - Domaini

Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG4742, Eukaryota

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
O04138

Identification of Orthologs from Complete Genome Data

More...
OMAi
EQRITYF

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.30.60.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001002, Chitin-bd_1
IPR018371, Chitin-binding_1_CS
IPR036861, Endochitinase-like_sf
IPR016283, Glyco_hydro_19
IPR000726, Glyco_hydro_19_cat
IPR023346, Lysozyme-like_dom_sf

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00187, Chitin_bind_1, 1 hit
PF00182, Glyco_hydro_19, 2 hits

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF001060, Endochitinase, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00270, ChtBD1, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF53955, SSF53955, 1 hit
SSF57016, SSF57016, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00026, CHIT_BIND_I_1, 1 hit
PS50941, CHIT_BIND_I_2, 1 hit
PS00773, CHITINASE_19_1, 1 hit
PS00774, CHITINASE_19_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>Sequences (2)i

<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.

This entry describes 2 <p>This subsection of the 'Sequence' section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Isoform 1 (identifier: O04138-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MAAKMATMVA LVFGLALLLS AAAPAAAQNC GCQDGYCCSQ WGYCGTTEAY
60 70 80 90 100
CGQGCQSGPC WGSGGEAAAG MAGRKAGAGA GVSVESVVTE AFFNGIKNQA
110 120 130 140 150
PNGCAGKSFY TRQSFLNAAR SYSGFANDRT NDDSKREIAA FFAHVTHETG
160 170 180 190 200
HMCYINEING ANMDYCDKSN KQWPCQPGKK YYGRGPLQIS WNFNYGPAGK
210 220 230 240 250
NIGFDGLRDP DKVAQDPTIS FKTALWFWMN NVHQVMSQGF GATIRAINGA
260 270 280
LECNGKNPGA VNARVNYYKD YCRQFGVSPG GNLYC
Length:285
Mass (Da):30,451
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:i289A6A44CB5EBFCE
GO
Isoform 2 (identifier: O04138-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-56: Missing.
     57-80: SGPCWGSGGEAAAGMAGRKAGAGA → MANSPTLTMLVFLAIGLSLVLSAA

Show »
Length:229
Mass (Da):25,151
Checksum:i90F7945DECDC7433
GO

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_0379981 – 56Missing in isoform 2. 2 PublicationsAdd BLAST56
Alternative sequenceiVSP_03799957 – 80SGPCW…AGAGA → MANSPTLTMLVFLAIGLSLV LSAA in isoform 2. 2 PublicationsAdd BLAST24

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
AB054687 Genomic DNA Translation: BAB21374.1
AB003194 mRNA Translation: BAA19793.1
AL606629 Genomic DNA Translation: CAD41540.2
AP008210 Genomic DNA Translation: BAF15098.1
AP014960 Genomic DNA Translation: BAS89866.1
CM000141 Genomic DNA Translation: EAZ31206.1
AK060363 mRNA Translation: BAG87422.1
AK099973 mRNA Translation: BAG94383.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T03405

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
Os04t0493400-01; Os04t0493400-01; Os04g0493400 [O04138-2]

Gramene; a comparative resource for plants

More...
Gramenei
Os04t0493400-01; Os04t0493400-01; Os04g0493400 [O04138-2]

Keywords - Coding sequence diversityi

Alternative splicing

<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
AB054687 Genomic DNA Translation: BAB21374.1
AB003194 mRNA Translation: BAA19793.1
AL606629 Genomic DNA Translation: CAD41540.2
AP008210 Genomic DNA Translation: BAF15098.1
AP014960 Genomic DNA Translation: BAS89866.1
CM000141 Genomic DNA Translation: EAZ31206.1
AK060363 mRNA Translation: BAG87422.1
AK099973 mRNA Translation: BAG94383.1
PIRiT03405

3D structure databases

SMRiO04138
ModBaseiSearch...

Protein-protein interaction databases

STRINGi4530.OS04T0493400-01

Protein family/group databases

CAZyiCBM18, Carbohydrate-Binding Module Family 18
GH19, Glycoside Hydrolase Family 19

Proteomic databases

PaxDbiO04138
PRIDEiO04138

Genome annotation databases

EnsemblPlantsiOs04t0493400-01; Os04t0493400-01; Os04g0493400 [O04138-2]
GrameneiOs04t0493400-01; Os04t0493400-01; Os04g0493400 [O04138-2]

Phylogenomic databases

eggNOGiKOG4742, Eukaryota
InParanoidiO04138
OMAiEQRITYF

Family and domain databases

Gene3Di3.30.60.10, 1 hit
InterProiView protein in InterPro
IPR001002, Chitin-bd_1
IPR018371, Chitin-binding_1_CS
IPR036861, Endochitinase-like_sf
IPR016283, Glyco_hydro_19
IPR000726, Glyco_hydro_19_cat
IPR023346, Lysozyme-like_dom_sf
PfamiView protein in Pfam
PF00187, Chitin_bind_1, 1 hit
PF00182, Glyco_hydro_19, 2 hits
PIRSFiPIRSF001060, Endochitinase, 1 hit
SMARTiView protein in SMART
SM00270, ChtBD1, 1 hit
SUPFAMiSSF53955, SSF53955, 1 hit
SSF57016, SSF57016, 1 hit
PROSITEiView protein in PROSITE
PS00026, CHIT_BIND_I_1, 1 hit
PS50941, CHIT_BIND_I_2, 1 hit
PS00773, CHITINASE_19_1, 1 hit
PS00774, CHITINASE_19_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 nameiCHI4_ORYSJ
<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: O04138
Secondary accession number(s): Q7XU64
<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: September 22, 2009
Last sequence update: September 22, 2009
Last modified: October 7, 2020
This is version 126 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 programPlant 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

Reference proteome

Documents

  1. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  2. Oryza sativa (rice)
    Index of Oryza sativa entries and their corresponding gene designations
  3. SIMILARITY comments
    Index of protein domains and families
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