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UniProtKB - P06720 (AGAL_ECOLI)

Entry version 158 (23 Feb 2022)
Sequence version 1 (01 Jan 1988)
Previous versions | rss
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Protein

Alpha-galactosidase

Gene

melA

Organism
Escherichia coli (strain K12)
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

<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 terminal, non-reducing alpha-D-galactose residues in alpha-D-galactosides, including galactose oligosaccharides, galactomannans and galactolipids. EC:3.2.1.22

<p>This subsection of the 'Function' section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Protein has several cofactor binding sites:

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei151SubstrateBy similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the 'Description' field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi173ManganeseBy similarity1
<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 sitei174Proton donorBy similarity1
Metal bindingi203ManganeseBy similarity1
Binding sitei287SubstrateBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi5 – 71NADBy similarityAdd BLAST67

<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

  • melibiose catabolic process Source: EcoCyc
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 functionGlycosidase, Hydrolase
Biological processCarbohydrate metabolism
LigandManganese, Metal-binding, NAD

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...BioCyci		EcoCyc:ALPHAGALACTOSID-MONOMER

Protein family/group databases

Carbohydrate-Active enZymes

More...CAZyi		GH4, Glycoside Hydrolase Family 4

<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:
Alpha-galactosidase (EC:3.2.1.22)
Alternative name(s):
Melibiase
<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:melA
Synonyms:mel-7
Ordered Locus Names:b4119, JW4080
<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>OrganismiEscherichia coli (strain K12)
<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 identifieri83333 [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 lineageiBacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Enterobacteriaceae › Escherichia ›
<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
  • UP000000318 <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
  • UP000000625 Componenti: Chromosome

<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

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...ChEMBLi		CHEMBL3696

<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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001698521 – 451Alpha-galactosidaseAdd BLAST451

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P06720

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

More...PaxDbi		P06720

PRoteomics IDEntifications database

More...PRIDEi		P06720

<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

Homodimer.

1 Publication

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		4262685, 8 interactors

Database of interacting proteins

More...DIPi		DIP-10179N

Protein interaction database and analysis system

More...IntActi		P06720, 3 interactors

STRING: functional protein association networks

More...STRINGi		511145.b4119

<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		P06720

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 4 family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG1486, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_045951_1_1_6

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P06720

Database for complete collections of gene phylogenies

More...PhylomeDBi		P06720

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR019802, GlycHydrolase_4_CS
IPR001088, Glyco_hydro_4
IPR022616, Glyco_hydro_4_C
IPR015955, Lactate_DH/Glyco_Ohase_4_C
IPR036291, NAD(P)-bd_dom_sf

The PANTHER Classification System

More...PANTHERi		PTHR32092, PTHR32092, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF02056, Glyco_hydro_4, 1 hit
PF11975, Glyco_hydro_4C, 1 hit

Protein Motif fingerprint database; a protein domain database

More...PRINTSi		PR00732, GLHYDRLASE4

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF51735, SSF51735, 1 hit
SSF56327, SSF56327, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS01324, GLYCOSYL_HYDROL_F4, 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.

P06720-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MMSAPKITFI GAGSTIFVKN ILGDVFHREA LKTAHIALMD IDPTRLEESH 
        60         70         80         90        100
IVVRKLMDSA GASGKITCHT QQKEALEDAD FVVVAFQIGG YEPCTVTDFE 
       110        120        130        140        150
VCKRHGLEQT IADTLGPGGI MRALRTIPHL WQICEDMTEV CPDATMLNYV 
       160        170        180        190        200
NPMAMNTWAM YARYPHIKQV GLCHSVQGTA EELARDLNID PATLRYRCAG 
       210        220        230        240        250
INHMAFYLEL ERKTADGSYV NLYPELLAAY EAGQAPKPNI HGNTRCQNIV 
       260        270        280        290        300
RYEMFKKLGY FVTESSEHFA EYTPWFIKPG REDLIERYKV PLDEYPKRCV 
       310        320        330        340        350
EQLANWHKEL EEYKKASRID IKPSREYAST IMNAIWTGEP SVIYGNVRND 
       360        370        380        390        400
GLIDNLPQGC CVEVACLVDA NGIQPTKVGT LPSHLAALMQ TNINVQTLLT 
       410        420        430        440        450
EAILTENRDR VYHAAMMDPH TAAVLGIDEI YALVDDLIAA HGDWLPGWLH 

R
Length:451
Mass (Da):50,657
Last modified:January 1, 1988 - 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:iCB20367C0860AB5F
GO

<p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence AAA24149 differs from that shown. Reason: Erroneous initiation.Curated

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
X04894 Genomic DNA Translation: CAA28581.1
K01490 Genomic DNA Translation: AAA24149.1 Different initiation.
U14003 Genomic DNA Translation: AAA97019.1
U00096 Genomic DNA Translation: AAC77080.1
AP009048 Genomic DNA Translation: BAE78121.1

Protein sequence database of the Protein Information Resource

More...PIRi		A26571, GBECAG

NCBI Reference Sequences

More...RefSeqi		NP_418543.1, NC_000913.3
WP_000986601.1, NZ_SSZK01000018.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC77080; AAC77080; b4119
BAE78121; BAE78121; BAE78121

Database of genes from NCBI RefSeq genomes

More...GeneIDi		948636

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ecj:JW4080
eco:b4119

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|1411691.4.peg.2581

<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
X04894 Genomic DNA Translation: CAA28581.1
K01490 Genomic DNA Translation: AAA24149.1 Different initiation.
U14003 Genomic DNA Translation: AAA97019.1
U00096 Genomic DNA Translation: AAC77080.1
AP009048 Genomic DNA Translation: BAE78121.1
PIRiA26571, GBECAG
RefSeqiNP_418543.1, NC_000913.3
WP_000986601.1, NZ_SSZK01000018.1

3D structure databases

SMRiP06720
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi4262685, 8 interactors
DIPiDIP-10179N
IntActiP06720, 3 interactors
STRINGi511145.b4119

Chemistry databases

ChEMBLiCHEMBL3696

Protein family/group databases

CAZyiGH4, Glycoside Hydrolase Family 4

Proteomic databases

jPOSTiP06720
PaxDbiP06720
PRIDEiP06720

Genome annotation databases

EnsemblBacteriaiAAC77080; AAC77080; b4119
BAE78121; BAE78121; BAE78121
GeneIDi948636
KEGGiecj:JW4080
eco:b4119
PATRICifig|1411691.4.peg.2581

Organism-specific databases

EchoBASE - an integrated post-genomic database for E. coli

More...EchoBASEi		EB0572

Phylogenomic databases

eggNOGiCOG1486, Bacteria
HOGENOMiCLU_045951_1_1_6
InParanoidiP06720
PhylomeDBiP06720

Enzyme and pathway databases

BioCyciEcoCyc:ALPHAGALACTOSID-MONOMER

Miscellaneous databases

Protein Ontology

More...PROi		PR:P06720

Family and domain databases

InterProiView protein in InterPro
IPR019802, GlycHydrolase_4_CS
IPR001088, Glyco_hydro_4
IPR022616, Glyco_hydro_4_C
IPR015955, Lactate_DH/Glyco_Ohase_4_C
IPR036291, NAD(P)-bd_dom_sf
PANTHERiPTHR32092, PTHR32092, 1 hit
PfamiView protein in Pfam
PF02056, Glyco_hydro_4, 1 hit
PF11975, Glyco_hydro_4C, 1 hit
PRINTSiPR00732, GLHYDRLASE4
SUPFAMiSSF51735, SSF51735, 1 hit
SSF56327, SSF56327, 1 hit
PROSITEiView protein in PROSITE
PS01324, GLYCOSYL_HYDROL_F4, 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 nameiAGAL_ECOLI
<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: P06720
Secondary accession number(s): Q2M6I5
<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: January 1, 1988
Last sequence update: January 1, 1988
Last modified: February 23, 2022
This is version 158 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, Reference proteome

Documents

  1. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families
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