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Entry version 142 (03 Jul 2019)
Sequence version 1 (01 Aug 1990)
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Protein

Guanine nucleotide-binding protein alpha-1 subunit

Gene

gpaA

Organism
Dictyostelium discoideum (Slime mold)
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 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

Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling systems.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 bindingi50MagnesiumBy similarity1
Metal bindingi183MagnesiumBy similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 sitei327GTP; via amide nitrogenBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi43 – 50GTPBy similarity8
Nucleotide bindingi177 – 183GTPBy similarity7
Nucleotide bindingi202 – 206GTPBy similarity5
Nucleotide bindingi271 – 274GTPBy similarity4

<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 functionTransducer
LigandGTP-binding, Magnesium, Metal-binding, Nucleotide-binding

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-DDI-112043 PLC beta mediated events
R-DDI-202040 G-protein activation
R-DDI-416482 G alpha (12/13) signalling events

<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:
Guanine nucleotide-binding protein alpha-1 subunit
Short name:
G alpha-1
<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:gpaA
ORF Names:DDB_G0283349
<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>OrganismiDictyostelium discoideum (Slime mold)
<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 identifieri44689 [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 lineageiEukaryotaAmoebozoaMycetozoaDictyostelidsDictyostelialesDictyosteliaceaeDictyostelium
<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
  • UP000002195 <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> Componentsi: Chromosome 4, Unassembled WGS sequence

Organism-specific databases

Dictyostelium discoideum online informatics resource

More...
dictyBasei
DDB_G0283349 gpaA

<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

<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 <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemovedSequence analysis
<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_00002036602 – 356Guanine nucleotide-binding protein alpha-1 subunitAdd BLAST355

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section specifies the position(s) and the type of covalently attached lipid group(s).<p><a href='/help/lipid' target='_top'>More...</a></p>Lipidationi2N-myristoyl glycineSequence analysis1
Lipidationi5S-palmitoyl cysteineSequence analysis1

Keywords - PTMi

Lipoprotein, Myristate, Palmitate

Proteomic databases

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

More...
PaxDbi
P16894

PRoteomics IDEntifications database

More...
PRIDEi
P16894

<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

G proteins are composed of 3 units; alpha, beta and gamma. The alpha chain contains the guanine nucleotide binding site.

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
44689.DDB0191255

<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
P16894

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>Domaini35 – 355G-alphaPROSITE-ProRule annotationAdd BLAST321

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>Regioni38 – 51G1 motifPROSITE-ProRule annotationAdd BLAST14
Regioni175 – 183G2 motifPROSITE-ProRule annotation9
Regioni198 – 207G3 motifPROSITE-ProRule annotation10
Regioni267 – 274G4 motifPROSITE-ProRule annotation8
Regioni325 – 330G5 motifPROSITE-ProRule annotation6

<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 G-alpha family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0082 Eukaryota
ENOG410XNVQ LUCA

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P16894

KEGG Orthology (KO)

More...
KOi
K04630

Identification of Orthologs from Complete Genome Data

More...
OMAi
VHRTCAT

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P16894

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00066 G-alpha, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.400.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001019 Gprotein_alpha_su
IPR011025 GproteinA_insert
IPR027417 P-loop_NTPase

The PANTHER Classification System

More...
PANTHERi
PTHR10218 PTHR10218, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00503 G-alpha, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00318 GPROTEINA

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00275 G_alpha, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47895 SSF47895, 1 hit
SSF52540 SSF52540, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51882 G_ALPHA, 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.

P16894-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGNICGKPEL GSPEEIKANQ HINSLLKQAR SKLEGEIKLL LLGAGESGKS
60 70 80 90 100
TIAKQMKIIH LNGFNDEEKS SYKTIIYNNT VGSMRVLVNA AEELKIGISE
110 120 130 140 150
NNKEAASRIS NDLGDHFNGV LTAELAQDIK ALWADPGIQN TFQRSSEFQL
160 170 180 190 200
NDSAAYYFDS IDRISQPLYL PSENDVLRSR TKTTGIIETV FEIQNSTFRM
210 220 230 240 250
VDVGGQRSER KKWMHCFQEV TAVIFCVALS EYDLKLYEDD TTNRMQESLK
260 270 280 290 300
LFKEICNTKW FANTAMILFL NKRDIFSEKI TKTPITVCFK EYDGPQTYEG
310 320 330 340 350
CSEFIKQQFI NQNENPKKSI YPHLTCATDT NNILVVFNAV KDIVLNLTLG

EAGMIL
Length:356
Mass (Da):40,188
Last modified:August 1, 1990 - 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:iD3F9C3BE399634B0
GO

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
M25060 mRNA Translation: AAA33207.1
AAFI02000054 Genomic DNA Translation: EAL65751.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A32384
A32945

NCBI Reference Sequences

More...
RefSeqi
XP_639105.1, XM_634013.1

Genome annotation databases

Ensembl protists genome annotation project

More...
EnsemblProtistsi
EAL65751; EAL65751; DDB_G0283349

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
8624038

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ddi:DDB_G0283349

<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
M25060 mRNA Translation: AAA33207.1
AAFI02000054 Genomic DNA Translation: EAL65751.1
PIRiA32384
A32945
RefSeqiXP_639105.1, XM_634013.1

3D structure databases

SMRiP16894
ModBaseiSearch...

Protein-protein interaction databases

STRINGi44689.DDB0191255

Proteomic databases

PaxDbiP16894
PRIDEiP16894

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblProtistsiEAL65751; EAL65751; DDB_G0283349
GeneIDi8624038
KEGGiddi:DDB_G0283349

Organism-specific databases

dictyBaseiDDB_G0283349 gpaA

Phylogenomic databases

eggNOGiKOG0082 Eukaryota
ENOG410XNVQ LUCA
InParanoidiP16894
KOiK04630
OMAiVHRTCAT
PhylomeDBiP16894

Enzyme and pathway databases

ReactomeiR-DDI-112043 PLC beta mediated events
R-DDI-202040 G-protein activation
R-DDI-416482 G alpha (12/13) signalling events

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P16894

Family and domain databases

CDDicd00066 G-alpha, 1 hit
Gene3Di1.10.400.10, 1 hit
InterProiView protein in InterPro
IPR001019 Gprotein_alpha_su
IPR011025 GproteinA_insert
IPR027417 P-loop_NTPase
PANTHERiPTHR10218 PTHR10218, 1 hit
PfamiView protein in Pfam
PF00503 G-alpha, 1 hit
PRINTSiPR00318 GPROTEINA
SMARTiView protein in SMART
SM00275 G_alpha, 1 hit
SUPFAMiSSF47895 SSF47895, 1 hit
SSF52540 SSF52540, 1 hit
PROSITEiView protein in PROSITE
PS51882 G_ALPHA, 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 nameiGPA1_DICDI
<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: P16894
Secondary accession number(s): Q54R78
<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: August 1, 1990
Last sequence update: August 1, 1990
Last modified: July 3, 2019
This is version 142 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)

<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, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Dictyostelium discoideum
    Dictyostelium discoideum: entries, gene names and cross-references to dictyBase
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