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Entry version 159 (26 Feb 2020)
Sequence version 1 (01 May 2000)
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Protein

Sphingomyelin phosphodiesterase

Gene

Dmel\CG3376

Organism
Drosophila melanogaster (Fruit fly)
Status
Unreviewed-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

Converts sphingomyelin to ceramide.UniRule annotation

<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

Zn2+UniRule annotationNote: Binds 2 Zn2+ ions per subunit.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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 bindingi277Zinc 1UniRule annotation1
Metal bindingi279Zinc 1; via tele nitrogenUniRule annotation1
Metal bindingi350Zinc 1UniRule annotation1
Metal bindingi350Zinc 2UniRule annotation1
Metal bindingi390Zinc 2UniRule annotation1
Metal bindingi498Zinc 2; via tele nitrogenUniRule annotation1
Metal bindingi532Zinc 2; via pros nitrogenUniRule annotation1
Metal bindingi534Zinc 1; via tele nitrogenUniRule 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 functionGlycosidaseUniRule annotation, Hydrolase
LigandMetal-bindingUniRule annotation, ZincUniRule annotation

<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:
Sphingomyelin phosphodiesteraseUniRule annotation (EC:3.1.4.12UniRule 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:Dmel\CG3376Imported
Synonyms:aSMaseImported
ORF Names:CG3376Imported, Dmel_CG3376Imported
<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>OrganismiDrosophila melanogaster (Fruit fly)Imported
<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 identifieri7227 [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 lineageiEukaryotaMetazoaEcdysozoaArthropodaHexapodaInsectaPterygotaNeopteraHolometabolaDipteraBrachyceraMuscomorphaEphydroideaDrosophilidaeDrosophilaSophophora
<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
  • UP000000803 <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 2R

Organism-specific databases

Drosophila genome database

More...
FlyBasei
FBgn0034997 CG3376

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei23 – 46HelicalSequence analysisAdd BLAST24

Keywords - Cellular componenti

Membrane

<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

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi158 ↔ 234UniRule annotation
Disulfide bondi161 ↔ 226UniRule annotation
Disulfide bondi189 ↔ 200UniRule annotation
Disulfide bondi292 ↔ 297UniRule annotation
Disulfide bondi298 ↔ 321UniRule annotation
Disulfide bondi458 ↔ 506UniRule annotation
Disulfide bondi658 ↔ 662UniRule annotation
Disulfide bondi668 ↔ 682UniRule annotation

Keywords - PTMi

Disulfide bondUniRule annotation

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
FBgn0034997 Expressed in arthropod fat body and 41 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q9W188 differential

<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
Q9W188

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>Domaini154 – 238Saposin B-typeInterPro annotationAdd BLAST85

<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 acid sphingomyelinase family.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helixSequence analysis

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG3770 Eukaryota
ENOG410YYPB LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00950000183182

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00842 MPP_ASMase, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.60.21.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR041805 ASMase/PPN1_MPP
IPR004843 Calcineurin-like_PHP_ApaH
IPR029052 Metallo-depent_PP-like
IPR011001 Saposin-like
IPR008139 SaposinB_dom
IPR011160 Sphingomy_PDE

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00149 Metallophos, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF000948 Sphingomy_PDE, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00741 SapB, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47862 SSF47862, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50015 SAP_B, 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>Sequence (1+)i

<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.

This entry has 1 described isoform and 3 potential isoforms that are computationally mapped.Show allAlign All

Q9W188-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MTQQQPPWPS PISSSSSNPR GKCWLILVLM AVLPLVADVG ALPFLFTHIK
60 70 80 90 100
PQINWTQPEM ESWVIEEQPR SIEPHLEPVL HPNRTHRALS SDSTDAEFLQ
110 120 130 140 150
RLVSIRHNQT ASSRMLWYDV AGGDGLVYPP FVDKALKLLN LKQVAFEIEN
160 170 180 190 200
SVMSKVTCTA CRAGAGMLQH QIQSGKTDAE LIRMITDYCT NLNIQSARVC
210 220 230 240 250
QGVAQLFGSE LIYVLKRVNL SPDELCSFVI GDGCADVYNP YHEWEVIFPP
260 270 280 290 300
VPKPPRLPDL PIPMEAAPFF KVLHISDTHY DPHYAEGSNA DCNEPLCCRL
310 320 330 340 350
SSGRPATPNA AAGKWGDYRK CDTPKRTVDH MLSHIAETHK DIDYILWTGD
360 370 380 390 400
LPPHDVWNQT KEENLAIIKD TVKQMVEMFP GVPIFPALGN HESAPVNSFP
410 420 430 440 450
PPYVNQVDIS ISWLYDELDI QWRRWLPQSV THTVRRGAFY SVLVRPGFRI
460 470 480 490 500
ISLNMNYCNN KNWWLLLNST DPATELQWFI YELQSAEFSN EKVHVIGHIP
510 520 530 540 550
PGHSDCLKVW SRNFYKIISR YESTVTAQFY GHTHYDEFEM FYDPHDLNHP
560 570 580 590 600
NGIAYIGPSV SPYYDLNPGY RIYYVDGDHD ATTRLVIDHE SWIMNLKEAN
610 620 630 640 650
LYGYPIWYKL YTARAAYNMK ALRPSDWNNL LNELTNNQEL FELYYKYYWK
660 670 680 690 700
NSPARPTCDA ECKKRLICDC RSGRSHDRKH FCAEVESKID EESSKSWKSW
710 720 730
FYKGLTNSAE DRTEEPAPTT DGYGPFDVVI VNVGG
Length:735
Mass (Da):84,183
Last modified:May 1, 2000 - 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:iA5078434669378F5
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There are 3 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
D6W4U0D6W4U0_DROME
Sphingomyelin phosphodiesterase
CG3376-RA aSMase, Dmel\CG3376, CG3376, Dmel_CG3376
764Annotation 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>
Q8MLP3Q8MLP3_DROME
Sphingomyelin phosphodiesterase
Dmel\CG3376 aSMase, CG3376, Dmel_CG3376
708Annotation 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>
A0A0B4LGL2A0A0B4LGL2_DROME
Sphingomyelin phosphodiesterase
aSMase Dmel\CG3376, CG3376, Dmel_CG3376
726Annotation 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>

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
AE013599 Genomic DNA Translation: AAF47189.1
AY061466 mRNA Translation: AAL29014.1

NCBI Reference Sequences

More...
RefSeqi
NP_611904.1, NM_138060.3

Genome annotation databases

Ensembl metazoan genome annotation project

More...
EnsemblMetazoai
FBtr0072266; FBpp0072173; FBgn0034997

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
37884

UCSC genome browser

More...
UCSCi
CG3376-RA d. melanogaster

<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
AE013599 Genomic DNA Translation: AAF47189.1
AY061466 mRNA Translation: AAL29014.1
RefSeqiNP_611904.1, NM_138060.3

3D structure databases

SMRiQ9W188
ModBaseiSearch...

Genome annotation databases

EnsemblMetazoaiFBtr0072266; FBpp0072173; FBgn0034997
GeneIDi37884
UCSCiCG3376-RA d. melanogaster

Organism-specific databases

FlyBaseiFBgn0034997 CG3376

Phylogenomic databases

eggNOGiKOG3770 Eukaryota
ENOG410YYPB LUCA
GeneTreeiENSGT00950000183182

Miscellaneous databases

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...
ChiTaRSi
CG3376 fly

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...
GenomeRNAii
37884

Gene expression databases

BgeeiFBgn0034997 Expressed in arthropod fat body and 41 other tissues
ExpressionAtlasiQ9W188 differential

Family and domain databases

CDDicd00842 MPP_ASMase, 1 hit
Gene3Di3.60.21.10, 1 hit
InterProiView protein in InterPro
IPR041805 ASMase/PPN1_MPP
IPR004843 Calcineurin-like_PHP_ApaH
IPR029052 Metallo-depent_PP-like
IPR011001 Saposin-like
IPR008139 SaposinB_dom
IPR011160 Sphingomy_PDE
PfamiView protein in Pfam
PF00149 Metallophos, 1 hit
PIRSFiPIRSF000948 Sphingomy_PDE, 1 hit
SMARTiView protein in SMART
SM00741 SapB, 1 hit
SUPFAMiSSF47862 SSF47862, 1 hit
PROSITEiView protein in PROSITE
PS50015 SAP_B, 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 nameiQ9W188_DROME
<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: Q9W188
<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/TrEMBL: May 1, 2000
Last sequence update: May 1, 2000
Last modified: February 26, 2020
This is version 159 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 statusiUnreviewed (UniProtKB/TrEMBL)

<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

Proteomics identificationCombined sources, Reference proteomeImported
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