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Entry version 134 (11 Dec 2019)
Sequence version 1 (01 Jun 2001)
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Protein

Sphingomyelin synthase-related protein 1

Gene

Samd8

Organism
Mus musculus (Mouse)
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 transcript 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

sphingomyelin synthases synthesize sphingolipids through transfer of a phosphatidyl head group on to the primary hydroxyl of ceramide. SAMD8 is an endoplasmic reticulum (ER) transferase that has no sphingomyelin synthase activity but can convert phosphatidylethanolamine (PE) and ceramide to ceramide phosphatidylethanolamine (CPE) albeit with low product yield. Appears to operate as a ceramide sensor to control ceramide homeostasis in the endoplasmic reticulum rather than a converter of ceramides. Seems to be critical for the integrity of the early secretory pathway (By similarity).By similarity

Caution

It is uncertain whether Met-1 or Met-64 is the initiator.Curated

<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 functionTransferase
Biological processLipid metabolism, Sphingolipid metabolism

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-MMU-1660661 Sphingolipid de novo biosynthesis

<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:
Sphingomyelin synthase-related protein 1 (EC:2.7.8.-)
Short name:
SMSr
Alternative name(s):
Ceramide phosphoethanolamine synthase
Short name:
CPE synthase
Sterile alpha motif domain-containing protein 8
Short name:
SAM domain-containing protein 8
<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:Samd8
<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>OrganismiMus musculus (Mouse)Imported
<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 identifieri10090 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
<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
  • UP000000589 <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 14

Organism-specific databases

Mouse genome database (MGD) from Mouse Genome Informatics (MGI)

More...
MGIi
MGI:1914880 Samd8

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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>Transmembranei216 – 236HelicalSequence analysisAdd BLAST21
Transmembranei264 – 284HelicalSequence analysisAdd BLAST21
Transmembranei295 – 315HelicalSequence analysisAdd BLAST21
Transmembranei341 – 361HelicalSequence analysisAdd BLAST21
Transmembranei385 – 405HelicalSequence analysisAdd BLAST21
Transmembranei410 – 430HelicalSequence analysisAdd BLAST21
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini431 – 478CytoplasmicSequence analysisAdd BLAST48

Keywords - Cellular componenti

Endoplasmic reticulum, 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

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_00002210811 – 478Sphingomyelin synthase-related protein 1Add BLAST478

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
Q9DA37

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

More...
PaxDbi
Q9DA37

PRoteomics IDEntifications database

More...
PRIDEi
Q9DA37

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
Q9DA37

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...
PhosphoSitePlusi
Q9DA37

<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
ENSMUSG00000021770 Expressed in 270 organ(s), highest expression level in gastrocnemius

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q9DA37 baseline and differential

<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

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
212321, 1 interactor

STRING: functional protein association networks

More...
STRINGi
10090.ENSMUSP00000022292

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...
RNActi
Q9DA37 protein

<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
Q9DA37

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_and_domains_section">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>Domaini75 – 141SAMPROSITE-ProRule annotationAdd BLAST67

<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 SAM domain is required to retain SMAD8 in the endoplasmic reticulum. membrane protein (By similarity).By similarity

<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 sphingomyelin synthase family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG3058 Eukaryota
ENOG410XNSC LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000155540

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000233822

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q9DA37

KEGG Orthology (KO)

More...
KOi
K22697

Database of Orthologous Groups

More...
OrthoDBi
599210at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q9DA37

TreeFam database of animal gene trees

More...
TreeFami
TF314547

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.150.50, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001660 SAM
IPR013761 SAM/pointed_sf
IPR025749 Sphingomyelin_synth-like_dom

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF14360 PAP2_C, 1 hit
PF00536 SAM_1, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00454 SAM, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47769 SSF47769, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50105 SAM_DOMAIN, 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>Sequence (1+)i

<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.

This entry has 1 described isoform and 2 potential isoforms that are computationally mapped.Show allAlign All

Q9DA37-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MPAGSRAGSR LRSGSLPRPS RLTLKALRPA YAPRTPDSNG DLDTGSELGP
60 70 80 90 100
GSPAPTAEEV EKEMAGPSQL CIRRWTTKHV AVWLKDEGFF EYVDILCNKH
110 120 130 140 150
RLDGITLLTL TEYDLRSPPL EIKVLGDIKR LMLSVRKLQK IHTDVLEEMG
160 170 180 190 200
YNSDSPMSPM TPFLSALQSA DWLCNGEPTH SCDGPIPDLS SDQYQYMNGK
210 220 230 240 250
NKHSARRLDP EYWKTILSCV YVFIVFGFTS FIMVIVHERV PDMQTYPPLP
260 270 280 290 300
DIFLDSVPRI PWAFSMTEVC GVILCYIWIL VLLLHKHRSI LLRRLCSLMG
310 320 330 340 350
TVFLLRCFTM FVTSLSVPGQ HLQCTGKIYG SVWEKLRRAF AIWSGFGMTL
360 370 380 390 400
TGVHTCGDYM FSGHTVVLTM LNFFVTEYTP RSWNFLHTLS WVLNLFGIFF
410 420 430 440 450
ILAAHEHYSI DVFIAFYITT RLFLYYHTLA NTRAYHQSRR ARIWFPMFSF
460 470
FECNVNGTVP NEYCWPFSKP AIMKRLIG
Length:478
Mass (Da):54,713
Last modified:June 1, 2001 - 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:i5FE31E342E146A29
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 2 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
Q3UH82Q3UH82_MOUSE
Sphingomyelin synthase-related prot...
Samd8
415Annotation score:

Annotation score:1 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>
D6REI9D6REI9_MOUSE
Sphingomyelin synthase-related prot...
Samd8
64Annotation score:

Annotation score:1 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
AK006211 mRNA Translation: BAB24461.1
AK075749 mRNA Translation: BAC35929.1
AY294423 Genomic DNA Translation: AAQ01515.1

The Consensus CDS (CCDS) project

More...
CCDSi
CCDS26866.1

NCBI Reference Sequences

More...
RefSeqi
NP_080559.1, NM_026283.2

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSMUST00000022292; ENSMUSP00000022292; ENSMUSG00000021770

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
67630

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mmu:67630

UCSC genome browser

More...
UCSCi
uc007slp.1 mouse

<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
AK006211 mRNA Translation: BAB24461.1
AK075749 mRNA Translation: BAC35929.1
AY294423 Genomic DNA Translation: AAQ01515.1
CCDSiCCDS26866.1
RefSeqiNP_080559.1, NM_026283.2

3D structure databases

SMRiQ9DA37
ModBaseiSearch...

Protein-protein interaction databases

BioGridi212321, 1 interactor
STRINGi10090.ENSMUSP00000022292

PTM databases

iPTMnetiQ9DA37
PhosphoSitePlusiQ9DA37

Proteomic databases

MaxQBiQ9DA37
PaxDbiQ9DA37
PRIDEiQ9DA37

Genome annotation databases

EnsembliENSMUST00000022292; ENSMUSP00000022292; ENSMUSG00000021770
GeneIDi67630
KEGGimmu:67630
UCSCiuc007slp.1 mouse

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
142891
MGIiMGI:1914880 Samd8

Phylogenomic databases

eggNOGiKOG3058 Eukaryota
ENOG410XNSC LUCA
GeneTreeiENSGT00940000155540
HOGENOMiHOG000233822
InParanoidiQ9DA37
KOiK22697
OrthoDBi599210at2759
PhylomeDBiQ9DA37
TreeFamiTF314547

Enzyme and pathway databases

ReactomeiR-MMU-1660661 Sphingolipid de novo biosynthesis

Miscellaneous databases

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

More...
ChiTaRSi
Samd8 mouse

Protein Ontology

More...
PROi
PR:Q9DA37
RNActiQ9DA37 protein

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSMUSG00000021770 Expressed in 270 organ(s), highest expression level in gastrocnemius
ExpressionAtlasiQ9DA37 baseline and differential

Family and domain databases

Gene3Di1.10.150.50, 1 hit
InterProiView protein in InterPro
IPR001660 SAM
IPR013761 SAM/pointed_sf
IPR025749 Sphingomyelin_synth-like_dom
PfamiView protein in Pfam
PF14360 PAP2_C, 1 hit
PF00536 SAM_1, 1 hit
SMARTiView protein in SMART
SM00454 SAM, 1 hit
SUPFAMiSSF47769 SSF47769, 1 hit
PROSITEiView protein in PROSITE
PS50105 SAM_DOMAIN, 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 nameiSAMD8_MOUSE
<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: Q9DA37
<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: March 1, 2004
Last sequence update: June 1, 2001
Last modified: December 11, 2019
This is version 134 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 programChordata 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
  2. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
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