Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
The new UniProt website is here! Take me to UniProt BETA

UniProtKB - Q7MX71 (MEGL_PORGI)

Entry version 103 (25 May 2022)
Sequence version 2 (13 Apr 2016)
Previous versions | rss
Add a publicationFeedback
Protein

L-methionine gamma-lyase

Gene

mgl

Organism
Porphyromonas gingivalis (strain ATCC BAA-308 / W83)
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

Catalyzes the alpha,gamma-elimination of L-methionine to produce methanethiol, 2-oxobutanoate and ammonia; methanethiol (methyl mercaptan) is considered to be one of the main causes of the oral malodor in periodontal disease and may also play a role in the pathogenicity of P.gingivalis in that disease (PubMed:11083813).

Is also able to catalyze the alpha,gamma-elimination of L-homocysteine (By similarity).

By similarity1 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

<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

pyridoxal 5'-phosphateBy similarityCurated

<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>Kineticsi

  1. KM=23.1 mM for L-methionine1 Publication
  1. Vmax=21.9 µmol/min/mg enzyme1 Publication

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 sitei114SubstrateBy similarity1
Binding sitei376SubstrateBy 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

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 functionLyase
Biological processVirulence
LigandPyridoxal phosphate

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...BRENDAi		4.4.1.11, 756

SABIO-RK: Biochemical Reaction Kinetics Database

More...SABIO-RKi		Q7MX71

<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:
L-methionine gamma-lyase1 Publication (EC:4.4.1.111 Publication)
Short name:
MGLCurated
Alternative name(s):
Homocysteine desulfhydraseBy similarity (EC:4.4.1.2By similarity)
L-methionine-alpha-deamino-gamma-mercaptomethane-lyase1 Publication
Short name:
METase1 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:mgl1 Publication
Synonyms:megLImported
Ordered Locus Names:PG_0343Imported
<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>OrganismiPorphyromonas gingivalis (strain ATCC BAA-308 / W83)
<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 identifieri242619 [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 › Bacteroidetes › Bacteroidia › Bacteroidales › Porphyromonadaceae › Porphyromonas ›
<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
  • UP000000588 <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

<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

<p>This subsection of the 'Pathology and Biotech' section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Cells lacking this gene show a marked decrease in the formation of methyl mercaptan from L-methionine and decreased virulence compared with the wild-type strain W83. The hydrogen sulfide content in the culture supernatants of mutant and wild-type strains is similar.1 Publication

Miscellaneous databases

Pathogen-Host Interaction database

More...PHI-basei		PHI:7938

<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_00004360141 – 399L-methionine gamma-lyaseAdd BLAST399

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 residuei212N6-(pyridoxal phosphate)lysineBy similarity1

<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

Homotetramer; dimer of active dimers.

By similarity

Protein-protein interaction databases

STRING: functional protein association networks

More...STRINGi		242619.PG_0343

<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

AlphaFold Protein Structure Database

More...AlphaFoldDBi		Q7MX71

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

More...SMRi		Q7MX71

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

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni59 – 61Pyridoxal phosphate binding; shared with dimeric partnerBy similarity3
Regioni89 – 90Pyridoxal phosphate bindingBy similarity2
Regioni209 – 211Pyridoxal phosphate bindingBy similarity3

<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 trans-sulfuration enzymes family. L-methionine gamma-lyase subfamily.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG0626, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_018986_2_3_10

Database of Orthologous Groups

More...OrthoDBi		637281at2

Family and domain databases

Conserved Domains Database

More...CDDi		cd00614, CGS_like, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		3.40.640.10, 1 hit
3.90.1150.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR000277, Cys/Met-Metab_PyrdxlP-dep_enz
IPR006237, L-Met_gamma_lys
IPR015424, PyrdxlP-dep_Trfase
IPR015421, PyrdxlP-dep_Trfase_major
IPR015422, PyrdxlP-dep_Trfase_small

The PANTHER Classification System

More...PANTHERi		PTHR11808, PTHR11808, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF01053, Cys_Met_Meta_PP, 1 hit

PIRSF; a whole-protein classification database

More...PIRSFi		PIRSF001434, CGS, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF53383, SSF53383, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR01328, met_gam_lyase, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00868, CYS_MET_METAB_PP, 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.

Q7MX71-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKKEDLMRSG FATRAIHGGA IENAFGCLAT PIYQTSTFVF DTAEQGGRRF 
        60         70         80         90        100
AGEEDGYIYT RLGNPNCTQV EEKLAMLEGG EAAASASSGI GAISSAIWVC 
       110        120        130        140        150
VKAGDHIVAG KTLYGCTFAF LTHGLSRYGV EVTLVDTRHP EEVEAAIRPN 
       160        170        180        190        200
TKLVYLETPA NPNMYLTDIK AVCDIAHKHE GVRVMVDNTY CTPYICRPLE 
       210        220        230        240        250
LGADIVVHSA TKYLNGHGDV IAGFVVGKED YIKEVKLVGV KDLTGANMSP 
       260        270        280        290        300
FDAYLISRGM KTLQIRMEQH CRNAQTVAEF LEKHPAVEAV YFPGLPSFPQ 
       310        320        330        340        350
YELAKKQMAL PGAMIAFEVK GGCEAGKKLM NNLHLCSLAV SLGDTETLIQ 
       360        370        380        390 
HPASMTHSPY TPEERAASDI SEGLVRLSVG LENVEDIIAD LKHGLDSLI
Length:399
Mass (Da):43,262
Last modified:April 13, 2016 - 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:iF9D5C79336B85F31
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 AAQ65554 differs from that shown. Reason: Erroneous initiation. Truncated N-terminus.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
AE015924 Genomic DNA Translation: AAQ65554.1 Different initiation.

NCBI Reference Sequences

More...RefSeqi		WP_005873786.1, NC_002950.2

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAQ65554; AAQ65554; PG_0343

Database of genes from NCBI RefSeq genomes

More...GeneIDi		29256789

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		pgi:PG_0343

<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
AE015924 Genomic DNA Translation: AAQ65554.1 Different initiation.
RefSeqiWP_005873786.1, NC_002950.2

3D structure databases

AlphaFoldDBiQ7MX71
SMRiQ7MX71
ModBaseiSearch...

Protein-protein interaction databases

STRINGi242619.PG_0343

Genome annotation databases

EnsemblBacteriaiAAQ65554; AAQ65554; PG_0343
GeneIDi29256789
KEGGipgi:PG_0343

Phylogenomic databases

eggNOGiCOG0626, Bacteria
HOGENOMiCLU_018986_2_3_10
OrthoDBi637281at2

Enzyme and pathway databases

BRENDAi4.4.1.11, 756
SABIO-RKiQ7MX71

Miscellaneous databases

PHI-baseiPHI:7938

Family and domain databases

CDDicd00614, CGS_like, 1 hit
Gene3Di3.40.640.10, 1 hit
3.90.1150.10, 1 hit
InterProiView protein in InterPro
IPR000277, Cys/Met-Metab_PyrdxlP-dep_enz
IPR006237, L-Met_gamma_lys
IPR015424, PyrdxlP-dep_Trfase
IPR015421, PyrdxlP-dep_Trfase_major
IPR015422, PyrdxlP-dep_Trfase_small
PANTHERiPTHR11808, PTHR11808, 1 hit
PfamiView protein in Pfam
PF01053, Cys_Met_Meta_PP, 1 hit
PIRSFiPIRSF001434, CGS, 1 hit
SUPFAMiSSF53383, SSF53383, 1 hit
TIGRFAMsiTIGR01328, met_gam_lyase, 1 hit
PROSITEiView protein in PROSITE
PS00868, CYS_MET_METAB_PP, 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 nameiMEGL_PORGI
<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: Q7MX71
<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: April 13, 2016
Last sequence update: April 13, 2016
Last modified: May 25, 2022
This is version 103 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

Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again