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Protein

Beta-galactosidase

Gene

lacS

Organism
Sulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)
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

Caution

The DNA coding for this protein is not found in the complete genome of strain 98/2. Sequence in PubMed:10383958 could have originated from another strain.Curated

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 beta-D-galactose residues in beta-D-galactosides. EC:3.2.1.23

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ 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 sitei206Proton donorSequence analysis1
Active sitei387NucleophilePROSITE-ProRule 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

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
SSOL273057:G1FZF-3294-MONOMER

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
3.2.1.23 6163
3.2.1.B26 6163
3.2.1.B28 6163

SABIO-RK: Biochemical Reaction Kinetics Database

More...
SABIO-RKi
P22498

Protein family/group databases

Carbohydrate-Active enZymes

More...
CAZyi
GH1 Glycoside Hydrolase Family 1

<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_and_taxonomy_section">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:
Beta-galactosidase (EC:3.2.1.23)
Short name:
Lactase
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:lacS
Ordered Locus Names:SSO3019
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiSulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri273057 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 lineageiArchaeaCrenarchaeotaThermoproteiSulfolobalesSulfolobaceaeSaccharolobus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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
  • UP000001974 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">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

<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_00000638671 – 489Beta-galactosidaseAdd BLAST489

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei116N6-methyllysine; partial1 Publication1
Modified residuei135N6-methyllysine1 Publication1
Modified residuei273N6-methyllysine; partial1 Publication1
Modified residuei311N6-methyllysine; partial1 Publication1
Modified residuei332N6-methyllysine1 Publication1

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>Sitei76Not N6-methylated1
Sitei102Not N6-methylated1
Sitei124Not N6-methylated1
Sitei138Not N6-methylated1

Keywords - PTMi

Methylation

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
P22498

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P22498

<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_section">'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_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homotetramer.

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
273057.SSO3019

<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

1489
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
P22498

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

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SMRi
P22498

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P22498

<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 1 family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
arCOG05412 Archaea
COG2723 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000088630

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P22498

KEGG Orthology (KO)

More...
KOi
K01190

Identification of Orthologs from Complete Genome Data

More...
OMAi
ITERNYP

Database of Orthologous Groups

More...
OrthoDBi
POG093Z01CD

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001360 Glyco_hydro_1
IPR018120 Glyco_hydro_1_AS
IPR033132 Glyco_hydro_1_N_CS
IPR017853 Glycoside_hydrolase_SF

The PANTHER Classification System

More...
PANTHERi
PTHR10353 PTHR10353, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00232 Glyco_hydro_1, 2 hits

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00131 GLHYDRLASE1

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF51445 SSF51445, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00572 GLYCOSYL_HYDROL_F1_1, 1 hit
PS00653 GLYCOSYL_HYDROL_F1_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_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

P22498-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MYSFPNSFRF GWSQAGFQSE MGTPGSEDPN TDWYKWVHDP ENMAAGLVSG
60 70 80 90 100
DLPENGPGYW GNYKTFHDNA QKMGLKIARL NVEWSRIFPN PLPRPQNFDE
110 120 130 140 150
SKQDVTEVEI NENELKRLDE YANKDALNHY REIFKDLKSR GLYFILNMYH
160 170 180 190 200
WPLPLWLHDP IRVRRGDFTG PSGWLSTRTV YEFARFSAYI AWKFDDLVDE
210 220 230 240 250
YSTMNEPNVV GGLGYVGVKS GFPPGYLSFE LSRRAMYNII QAHARAYDGI
260 270 280 290 300
KSVSKKPVGI IYANSSFQPL TDKDMEAVEM AENDNRWWFF DAIIRGEITR
310 320 330 340 350
GNEKIVRDDL KGRLDWIGVN YYTRTVVKRT EKGYVSLGGY GHGCERNSVS
360 370 380 390 400
LAGLPTSDFG WEFFPEGLYD VLTKYWNRYH LYMYVTENGI ADDADYQRPY
410 420 430 440 450
YLVSHVYQVH RAINSGADVR GYLHWSLADN YEWASGFSMR FGLLKVDYNT
460 470 480
KRLYWRPSAL VYREIATNGA ITDEIEHLNS VPPVKPLRH
Length:489
Mass (Da):56,692
Last modified:June 20, 2001 - 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:iB56F6CE8EE4A429D
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 conflicti235A → H in AAA72843 (PubMed:2121622).Curated1

<p>This subsection of the ‘Sequence’ section reports information derived from mass spectrometry experiments done on the entire protein or on biologically active derived peptide(s).<p><a href='/help/mass_spectrometry' target='_top'>More...</a></p>Mass spectrometryi

Molecular mass is 56754.8±4.9 Da from positions 1 - 489. Determined by ESI. 1 Publication

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
M34696 Genomic DNA Translation: AAA72843.1
AF133096 Genomic DNA Translation: AAD21094.1
AE006641 Genomic DNA Translation: AAK43121.1

Protein sequence database of the Protein Information Resource

More...
PIRi
B90483
JQ0767

NCBI Reference Sequences

More...
RefSeqi
WP_009992676.1, NC_002754.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAK43121; AAK43121; SSO3019

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
27429277

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
sso:SSO3019

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|273057.12.peg.3113

<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
M34696 Genomic DNA Translation: AAA72843.1
AF133096 Genomic DNA Translation: AAD21094.1
AE006641 Genomic DNA Translation: AAK43121.1
PIRiB90483
JQ0767
RefSeqiWP_009992676.1, NC_002754.1

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
1GOWX-ray2.60A/B1-489[»]
1UWIX-ray2.55A/B/C/D1-489[»]
1UWQX-ray2.02A/B1-489[»]
1UWRX-ray2.14A/B1-489[»]
1UWSX-ray1.95A/B1-489[»]
1UWTX-ray1.95A/B1-489[»]
1UWUX-ray1.95A/B1-489[»]
2CEQX-ray2.14A/B1-489[»]
2CERX-ray2.29A/B1-489[»]
4EAMX-ray1.70A/B1-489[»]
4EANX-ray1.75A/B1-489[»]
5I3DX-ray2.16A/B/C/D1-489[»]
5IXEX-ray1.75A/B1-489[»]
ProteinModelPortaliP22498
SMRiP22498
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi273057.SSO3019

Protein family/group databases

CAZyiGH1 Glycoside Hydrolase Family 1

PTM databases

iPTMnetiP22498

Proteomic databases

PRIDEiP22498

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAK43121; AAK43121; SSO3019
GeneIDi27429277
KEGGisso:SSO3019
PATRICifig|273057.12.peg.3113

Phylogenomic databases

eggNOGiarCOG05412 Archaea
COG2723 LUCA
HOGENOMiHOG000088630
InParanoidiP22498
KOiK01190
OMAiITERNYP
OrthoDBiPOG093Z01CD

Enzyme and pathway databases

BioCyciSSOL273057:G1FZF-3294-MONOMER
BRENDAi3.2.1.23 6163
3.2.1.B26 6163
3.2.1.B28 6163
SABIO-RKiP22498

Miscellaneous databases

EvolutionaryTraceiP22498

Protein Ontology

More...
PROi
PR:P22498

Family and domain databases

InterProiView protein in InterPro
IPR001360 Glyco_hydro_1
IPR018120 Glyco_hydro_1_AS
IPR033132 Glyco_hydro_1_N_CS
IPR017853 Glycoside_hydrolase_SF
PANTHERiPTHR10353 PTHR10353, 1 hit
PfamiView protein in Pfam
PF00232 Glyco_hydro_1, 2 hits
PRINTSiPR00131 GLHYDRLASE1
SUPFAMiSSF51445 SSF51445, 1 hit
PROSITEiView protein in PROSITE
PS00572 GLYCOSYL_HYDROL_F1_1, 1 hit
PS00653 GLYCOSYL_HYDROL_F1_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
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 nameiBGAL_SULSO
<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: P22498
Secondary accession number(s): Q9V2Z5
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 1, 1991
Last sequence update: June 20, 2001
Last modified: December 5, 2018
This is version 142 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 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

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  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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