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Entry version 125 (16 Oct 2019)
Sequence version 1 (01 Jun 1998)
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Protein

Phosphatidylinositol-3-phosphatase

Gene

sapM

Organism
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
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

Virulence factor that plays an important role in blocking phagosome-lysosome fusion and thus participates in the intracellular survival of the pathogen (PubMed:15753315, PubMed:23923000). Acts as a phosphatase that dephosphorylates phosphatidylinositol 3-phosphate (PI3P), a membrane trafficking regulatory lipid essential for phagosomal acquisition of lysosomal constituents (PubMed:15753315). Therefore, SapM eliminates PI3P from the phagosomal membrane by catalyzing its hydrolysis, and thus contributes to inhibition of phagosome maturation (PubMed:15753315). Also interferes with autophagy: SapM blocks autophagosome-lysosome fusion in macrophages by binding to the small GTPase RAB7, which prevents RAB7 from being involved in this process and thus negatively regulates autophagy flux (PubMed:25896765). In vitro, displays phosphatase activity with broad specificity; can dephosphorylate a variety of phosphoester substrates, with the highest activity against phosphoenolpyruvate, glycerophosphate, GTP, NADPH, phosphotyrosine and trehalose-6-phosphate (PubMed:11073936). In contrast, the enzyme exhibits poor activity against glucose-6-phosphate, phosphothreonine, and a number of nucleotides (NADP, ATP, AMP, and GMP) (PubMed:11073936).4 Publications

<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

<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

a metal cation1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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

Phosphatase activity is inhibited in vitro by low concentrations of several heavy metals (zinc chloride, sodium molybdate, magnesium chloride, and copper sulfate) and moderately high concentrations (>8 mM) of EDTA.1 Publication

<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=0.43 mM for p-nitrophenyl phosphate1 Publication
  1. Vmax=2100000 nmol/h/mg enzyme with p-nitrophenyl phosphate as substrate1 Publication

pH dependencei

Optimum pH is 6.5-7.5. Significant phosphatase activity is observed between pH 5.5 and 8.0.1 Publication

<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 functionHydrolase
Biological processVirulence

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
MTBH37RV:G185E-7584-MONOMER

<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:
Phosphatidylinositol-3-phosphatase1 Publication (EC:3.1.3.641 Publication)
Short name:
PI3P phosphatase1 Publication
Alternative name(s):
Acid phosphatase SapM1 Publication (EC:3.1.3.21 Publication)
Secreted acid phosphatase1 Publication
<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:sapM1 Publication
Ordered Locus Names:Rv3310Imported, LH57_18080Imported
<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>OrganismiMycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
<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 identifieri83332 [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 lineageiBacteriaActinobacteriaCorynebacterialesMycobacteriaceaeMycobacteriumMycobacterium tuberculosis complex
<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
  • UP000001584 <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

Organism-specific databases

Mycobacterium tuberculosis strain H37Rv genome database

More...
TubercuListi
Rv3310

<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

Host cytoplasmic vesicle, Secreted

<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

Strain lacking this gene is defective in the arrest of phagosomal maturation as well as for growth in human THP-1 macrophages. The mutant strain is severely attenuated for growth in the lungs and spleen of guinea pigs and has a significantly reduced ability to cause pathological damage in the host when compared with the parental strain. Also, the guinea pigs infected with the mutant strain exhibit a significantly enhanced survival when compared with M.tuberculosis infected animals.1 Publication

<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 denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 431 PublicationAdd BLAST43
<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_500877859744 – 299Phosphatidylinositol-3-phosphataseAdd BLAST256

Proteomic databases

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

More...
PaxDbi
O53361

PRoteomics IDEntifications database

More...
PRIDEi
O53361

<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

Monomer (PubMed:11073936). SapM interacts with host RAB7 via its C-terminus (PubMed:25896765).

2 Publications

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
83332.Rv3310

<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 general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The C-terminus of SapM is required for interaction with RAB7 and SapM-mediated autophagy block.1 Publication

Keywords - Domaini

Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

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eggNOGi
ENOG4105FBN Bacteria
ENOG41111HW LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000019680

KEGG Orthology (KO)

More...
KOi
K21302

Identification of Orthologs from Complete Genome Data

More...
OMAi
DNNMHDG

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR017850 Alkaline_phosphatase_core_sf
IPR007312 Phosphoesterase

The PANTHER Classification System

More...
PANTHERi
PTHR31956 PTHR31956, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF04185 Phosphoesterase, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF53649 SSF53649, 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>. 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_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.

<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 in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

O53361-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MLRGIQALSR PLTRVYRALA VIGVLAASLL ASWVGAVPQV GLAASALPTF
60 70 80 90 100
AHVVIVVEEN RSQAAIIGNK SAPFINSLAA NGAMMAQAFA ETHPSEPNYL
110 120 130 140 150
ALFAGNTFGL TKNTCPVNGG ALPNLGSELL SAGYTFMGFA EDLPAVGSTV
160 170 180 190 200
CSAGKYARKH VPWVNFSNVP TTLSVPFSAF PKPQNYPGLP TVSFVIPNAD
210 220 230 240 250
NDMHDGSIAQ GDAWLNRHLS AYANWAKTNN SLLVVTWDED DGSSRNQIPT
260 270 280 290
VFYGAHVRPG TYNETISHYN VLSTLEQIYG LPKTGYATNA PPITDIWGD
Length:299
Mass (Da):31,807
Last modified:June 1, 1998 - 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:iC5E8C49CF62C8BF8
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AL123456 Genomic DNA Translation: CCP46129.1
CP009480 Genomic DNA Translation: AIR16102.1

NCBI Reference Sequences

More...
RefSeqi
NP_217827.1, NC_000962.3
WP_003900013.1, NZ_NVQJ01000003.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AIR16102; AIR16102; LH57_18080
CCP46129; CCP46129; Rv3310

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
887988

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mtu:Rv3310
mtv:RVBD_3310

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|83332.111.peg.3693

<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
AL123456 Genomic DNA Translation: CCP46129.1
CP009480 Genomic DNA Translation: AIR16102.1
RefSeqiNP_217827.1, NC_000962.3
WP_003900013.1, NZ_NVQJ01000003.1

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Protein-protein interaction databases

STRINGi83332.Rv3310

Proteomic databases

PaxDbiO53361
PRIDEiO53361

Genome annotation databases

EnsemblBacteriaiAIR16102; AIR16102; LH57_18080
CCP46129; CCP46129; Rv3310
GeneIDi887988
KEGGimtu:Rv3310
mtv:RVBD_3310
PATRICifig|83332.111.peg.3693

Organism-specific databases

TubercuListiRv3310

Phylogenomic databases

eggNOGiENOG4105FBN Bacteria
ENOG41111HW LUCA
HOGENOMiHOG000019680
KOiK21302
OMAiDNNMHDG

Enzyme and pathway databases

BioCyciMTBH37RV:G185E-7584-MONOMER

Family and domain databases

InterProiView protein in InterPro
IPR017850 Alkaline_phosphatase_core_sf
IPR007312 Phosphoesterase
PANTHERiPTHR31956 PTHR31956, 1 hit
PfamiView protein in Pfam
PF04185 Phosphoesterase, 1 hit
SUPFAMiSSF53649 SSF53649, 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 nameiSAPM_MYCTU
<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: O53361
Secondary accession number(s): F2GKY3, I6X6Y4, Q7D5Q7
<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: February 15, 2017
Last sequence update: June 1, 1998
Last modified: October 16, 2019
This is version 125 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

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh
    Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh: entries and gene names
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