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Entry version 118 (02 Jun 2021)
Sequence version 1 (01 Jun 2002)
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Protein

Homoserine O-acetyltransferase

Gene

metXA

Organism
Methanosarcina acetivorans (strain ATCC 35395 / DSM 2834 / JCM 12185 / C2A)
Status
Reviewed-Annotation score:

Annotation score:3 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

Transfers an acetyl group from acetyl-CoA to L-homoserine, forming acetyl-L-homoserine. In vitro, can also use propionyl-CoA or butiryl-CoA as acyl donor.

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

<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: L-methionine biosynthesis via de novo pathway

This protein is involved in step 1 of the subpathway that synthesizes O-acetyl-L-homoserine from L-homoserine.UniRule annotation This subpathway is part of the pathway L-methionine biosynthesis via de novo pathway, which is itself part of Amino-acid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes O-acetyl-L-homoserine from L-homoserine, the pathway L-methionine biosynthesis via de novo pathway and in Amino-acid biosynthesis.

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 sitei171NucleophileUniRule annotation1
<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 sitei240SubstrateUniRule annotation1
Active sitei365UniRule annotation1
Active sitei398UniRule annotation1
Binding sitei399SubstrateUniRule 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 functionAcyltransferase, Transferase
Biological processAmino-acid biosynthesis, Methionine biosynthesis

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
MACE188937:G1FZT-2907-MONOMER

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

More...
UniPathwayi
UPA00051;UER00074

Protein family/group databases

ESTHER database of the Alpha/Beta-hydrolase fold superfamily of proteins

More...
ESTHERi
metac-META, Homoserine_transacetylase

<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:
Homoserine O-acetyltransferaseUniRule annotation (EC:2.3.1.31UniRule annotation1 Publication)
Short name:
HAT1 PublicationUniRule annotation
Alternative name(s):
Homoserine transacetylaseUniRule annotation
Short name:
HTAUniRule 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:metXA1 PublicationUniRule annotation
Synonyms:metAImported
Ordered Locus Names:MA_2714Imported
<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>OrganismiMethanosarcina acetivorans (strain ATCC 35395 / DSM 2834 / JCM 12185 / C2A)
<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 identifieri188937 [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 lineageiArchaeaEuryarchaeotaStenosarchaea groupMethanomicrobiaMethanosarcinalesMethanosarcinaceaeMethanosarcina
<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
  • UP000002487 <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 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

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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00004402851 – 540Homoserine O-acetyltransferaseAdd BLAST540

<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.

UniRule annotation

<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
Q8TME4

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>Domaini66 – 404AB hydrolase-1UniRule annotationAdd BLAST339
Domaini425 – 484CBS 1UniRule annotationAdd BLAST60
Domaini486 – 540CBS 2UniRule annotationAdd BLAST55

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>Regioni262 – 284DisorderedSequence analysisAdd BLAST23

<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 AB hydrolase superfamily. MetX family.UniRule annotation

Keywords - Domaini

CBS domain, Repeat

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_028760_1_1_2

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q8TME4

Identification of Orthologs from Complete Genome Data

More...
OMAi
TRFCVVS

Database of Orthologous Groups

More...
OrthoDBi
8770at2157

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q8TME4

Family and domain databases

HAMAP database of protein families

More...
HAMAPi
MF_00296, MetX_acyltransf, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR029058, AB_hydrolase
IPR000073, AB_hydrolase_1
IPR000644, CBS_dom
IPR008220, HAT_MetX-like

The PANTHER Classification System

More...
PANTHERi
PTHR32268, PTHR32268, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00561, Abhydrolase_1, 1 hit
PF00571, CBS, 2 hits

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00116, CBS, 2 hits

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF53474, SSF53474, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR01392, homoserO_Ac_trn, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51371, CBS, 2 hits

<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.

Q8TME4-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAVSSGNSSV NSSKKLFSGK KGQSIGIVRS MNYKIPGTFG LESGKTLSGV
60 70 80 90 100
RVEYEMYGKM NADKSNVILI CHALTGDAHA AGFHEGDKKP GWWEIVIGPN
110 120 130 140 150
KAFDTEKYCV ICSNILGGCK GSTGPSSIDP ETGKHYGISF PVITVKDMVN
160 170 180 190 200
AQKKLIEHLG VKQLFAVAGG SMGGMQVLQW TVSYPEMVRK AIAIATTAST
210 220 230 240 250
TPQQIAFGAI GRKAITDDPK WNGGDYYGKE IPSQGLALAR MIGHITYLSD
260 270 280 290 300
ASMQNKFGRL QQDTDKSGIK GTTGTEGKNS SEISSEISSI SSEISSELSY
310 320 330 340 350
DFTPNFQVES YLNYKGDNFT KRFDANSYLY ITKAVDYFDL AKNGSLIEGF
360 370 380 390 400
SGVTAKYLVI SISSDWLYPP YQSQEIVSAL TANGVDARYE EIRSQHGHDA
410 420 430 440 450
FLLEEGQLSY LLRSFLSHIL VSDVMNRNFY TVSRDETIEH SSKLMVKECV
460 470 480 490 500
SHLPVISEDG KLEGIVTSWD ITKAVACKIN ELDEIITRDV KYVYEDEKIE
510 520 530 540
HASSIMEKHS ISALPVIDSE HRIIGIVTSE SISALFGKYD
Length:540
Mass (Da):59,169
Last modified:June 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:i12EB654216C117AB
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
AE010299 Genomic DNA Translation: AAM06093.1

NCBI Reference Sequences

More...
RefSeqi
WP_011022674.1, NC_003552.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAM06093; AAM06093; MA_2714

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
1474607

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mac:MA_2714

<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
AE010299 Genomic DNA Translation: AAM06093.1
RefSeqiWP_011022674.1, NC_003552.1

3D structure databases

SMRiQ8TME4
ModBaseiSearch...

Protein family/group databases

ESTHERimetac-META, Homoserine_transacetylase

Genome annotation databases

EnsemblBacteriaiAAM06093; AAM06093; MA_2714
GeneIDi1474607
KEGGimac:MA_2714

Phylogenomic databases

HOGENOMiCLU_028760_1_1_2
InParanoidiQ8TME4
OMAiTRFCVVS
OrthoDBi8770at2157
PhylomeDBiQ8TME4

Enzyme and pathway databases

UniPathwayiUPA00051;UER00074
BioCyciMACE188937:G1FZT-2907-MONOMER

Family and domain databases

HAMAPiMF_00296, MetX_acyltransf, 1 hit
InterProiView protein in InterPro
IPR029058, AB_hydrolase
IPR000073, AB_hydrolase_1
IPR000644, CBS_dom
IPR008220, HAT_MetX-like
PANTHERiPTHR32268, PTHR32268, 1 hit
PfamiView protein in Pfam
PF00561, Abhydrolase_1, 1 hit
PF00571, CBS, 2 hits
SMARTiView protein in SMART
SM00116, CBS, 2 hits
SUPFAMiSSF53474, SSF53474, 1 hit
TIGRFAMsiTIGR01392, homoserO_Ac_trn, 1 hit
PROSITEiView protein in PROSITE
PS51371, CBS, 2 hits

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 nameiMETXA_METAC
<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: Q8TME4
<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: June 7, 2017
Last sequence update: June 1, 2002
Last modified: June 2, 2021
This is version 118 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

Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families
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