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Entry version 95 (11 Dec. 2019)
Sequence version 1 (01 Oct. 2002)
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Protein

Glycogen debranching enzyme

Gene

glgX

Organism
Dickeya chrysanthemi (Pectobacterium chrysanthemi) (Erwinia chrysanthemi)
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

Removes maltotriose and maltotetraose chains that are attached by 1,6-alpha-linkage to the limit dextrin main chain, generating a debranched limit dextrin (By similarity). Hydrolyzes the alpha-1,6-glycosidic linkages in amylopectin while does not hydrolyze the alpha-1,4-glycosidic linkages in amylose. Native glycogen is a poor substrate (PubMed:11554733).UniRule annotation1 Publication

Caution

Was originally (PubMed:11554733) identified as an isoamylase despite of its little activity on glycogen, but was renamed as glycogen debranching enzyme due to the characterization of the flanking gene coding for the glycogen branching enzyme (PubMed:12480526).2 Publications

<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

  • Hydrolysis of (1->6)-alpha-D-glucosidic linkages to branches with degrees of polymerization of three or four glucose residues in limit dextrin.UniRule annotation EC:3.2.1.196

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Slightly activated by Ca2+. Inhibited by divalent cations such as Zn2+, Cu2+, Fe2+, Mg2+, Mn2+, but only slightly inhibited by EDTA.

<p>This subsection of the 'Function' section describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>pH dependencei

Optimum pH is 7.

Temperature dependencei

Optimum temperature is 40 degrees Celsius.

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: glycogen degradation

This protein is involved in the pathway glycogen degradation, which is part of Glycan degradation.UniRule annotation
View all proteins of this organism that are known to be involved in the pathway glycogen degradation and in Glycan degradation.

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 sitei334NucleophileUniRule annotation1
Active sitei369Proton donorUniRule annotation1
<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>Sitei441Transition state stabilizerUniRule 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 functionGlycosidase, Hydrolase
Biological processCarbohydrate metabolism, Glycogen metabolism

Enzyme and pathway databases

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...
UniPathwayi
UPA00165

Protein family/group databases

Carbohydrate-Active enZymes

More...
CAZyi
CBM48 Carbohydrate-Binding Module Family 48
GH13 Glycoside Hydrolase Family 13

<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:
Glycogen debranching enzymeUniRule annotation (EC:3.2.1.196UniRule annotation)
Alternative name(s):
Limit dextrin alpha-1,6-maltotetraose-hydrolaseUniRule annotation
<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:glgXUniRule annotation
Synonyms:amyX
<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>OrganismiDickeya chrysanthemi (Pectobacterium chrysanthemi) (Erwinia chrysanthemi)
<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 identifieri556 [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 lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesPectobacteriaceaeDickeya

<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

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

<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_00000543001 – 657Glycogen debranching enzymeAdd BLAST657

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q8KR69

<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
Q8KR69

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

<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 glycosyl hydrolase 13 family.UniRule annotationCurated

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.60.40.10, 1 hit
2.60.40.1180, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_01248 GlgX, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR040784 GlgX_C
IPR006047 Glyco_hydro_13_cat_dom
IPR004193 Glyco_hydro_13_N
IPR013780 Glyco_hydro_b
IPR022844 Glycogen_debranch_bac
IPR011837 Glycogen_debranch_GlgX
IPR017853 Glycoside_hydrolase_SF
IPR013783 Ig-like_fold
IPR014756 Ig_E-set

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00128 Alpha-amylase, 1 hit
PF02922 CBM_48, 1 hit
PF18390 GlgX_C, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00642 Aamy, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF51445 SSF51445, 1 hit
SSF81296 SSF81296, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR02100 glgX_debranch, 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.

Q8KR69-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGELLAGRPR PLGSHFDGEG VNFALFSSGA SRVELCIFDG LREQRLPLTA
60 70 80 90 100
RTGDIWHGYL PDAQPGLCYG YRVDGAFDPS RGQRFNANKL LLDPCARQMD
110 120 130 140 150
GWVVDDQRLH GGYHQPDPSD SAEVMPPSVV VDEHYDWQGD RLPRTPWSQT
160 170 180 190 200
VLYEAHVRGL TRRHPGIPAA IRGTYAALAH PVMLDYLTQL GVTALELMPV
210 220 230 240 250
QQHADEPRLQ SMGLRNYWGY NTLLPFAVDN SLAASDDPLN EFRDTVRALH
260 270 280 290 300
QAGIEVILDV VFNHSAELDV DGPTLTLRGI DNASYYWLTE NGDYHNWAGC
310 320 330 340 350
GNVLRLEHPA VLHWVIECLT FWHEVCHVDG FRFDLATILG RLPDFSSSAP
360 370 380 390 400
FFTALRNHRS LRDCKLIAEP WDISPGGYQL GQFPAPFAEW NDRFRDDMRR
410 420 430 440 450
FWLHGDLPIG VLARRFAASS EVFERGSRQP WASVNMLTSH DGFTLRDLVC
460 470 480 490 500
FNHKHNDANG EQNRDGTNSN FSFNHGTEGL EADETTQARR RVSQQALLTT
510 520 530 540 550
LLLSQGTPML LAGDEFGNSQ QGNNNAYCQD NALAWLHWDQ ADDALLAFTS
560 570 580 590 600
GLIRLRRSIP ALQRGRWWRD DDEDDVRWLN AQGEALTPYE WEQGTHQLQI
610 620 630 640 650
QLSERWLLLV NATPQVSDFS LPEGEWRVAP PFSATDHLLD GQTWRGQANA

VCVLVKQ
Length:657
Mass (Da):74,152
Last modified:October 1, 2002 - 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:iFC5206E4B6D925B2
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AY044255 Genomic DNA Translation: AAL02393.1

Protein sequence database of the Protein Information Resource

More...
PIRi
JC7767

<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
AY044255 Genomic DNA Translation: AAL02393.1
PIRiJC7767

3D structure databases

SMRiQ8KR69
ModBaseiSearch...

Protein family/group databases

CAZyiCBM48 Carbohydrate-Binding Module Family 48
GH13 Glycoside Hydrolase Family 13

Proteomic databases

PRIDEiQ8KR69

Enzyme and pathway databases

UniPathwayiUPA00165

Family and domain databases

Gene3Di2.60.40.10, 1 hit
2.60.40.1180, 1 hit
HAMAPiMF_01248 GlgX, 1 hit
InterProiView protein in InterPro
IPR040784 GlgX_C
IPR006047 Glyco_hydro_13_cat_dom
IPR004193 Glyco_hydro_13_N
IPR013780 Glyco_hydro_b
IPR022844 Glycogen_debranch_bac
IPR011837 Glycogen_debranch_GlgX
IPR017853 Glycoside_hydrolase_SF
IPR013783 Ig-like_fold
IPR014756 Ig_E-set
PfamiView protein in Pfam
PF00128 Alpha-amylase, 1 hit
PF02922 CBM_48, 1 hit
PF18390 GlgX_C, 1 hit
SMARTiView protein in SMART
SM00642 Aamy, 1 hit
SUPFAMiSSF51445 SSF51445, 1 hit
SSF81296 SSF81296, 1 hit
TIGRFAMsiTIGR02100 glgX_debranch, 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 nameiGLGX_DICCH
<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: Q8KR69
<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 16, 2004
Last sequence update: October 1, 2002
Last modified: December 11, 2019
This is version 95 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 programProkaryotic 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

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families
  3. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
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