Ammonia channel

<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

<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

• ammonium transmembrane transporter activity Source: UniProtKB <p>Inferred from Direct Assay</p> <p>Used to indicate a direct assay for the function, process or component indicated by the GO term.</p> <p>More information in the <a href="http://geneontology.org/page/guide%2Dgo%2Devidence%2Dcodes#ida">GO evidence code guide</a></p> Inferred from direct assayⁱ
  • "Relative CO2/NH3 selectivities of AQP1, AQP4, AQP5, AmtB, and RhAG."
    Musa-Aziz R., Chen L.M., Pelletier M.F., Boron W.F.
    Proc Natl Acad Sci U S A 106:5406-5411(2009) [PubMed] [Europe PMC] [Abstract]
• identical protein binding Source: IntAct <p>Inferred from Physical Interaction</p> <p>Covers physical interactions between the gene product of interest and another molecule (or ion, or complex).</p> <p>More information in the <a href="http://geneontology.org/page/guide%2Dgo%2Devidence%2Dcodes#ipi">GO evidence code guide</a></p> Inferred from physical interactionⁱ
  • "Substrate binding, deprotonation, and selectivity at the periplasmic entrance of the Escherichia coli ammonia channel AmtB."
    Javelle A., Lupo D., Ripoche P., Fulford T., Merrick M., Winkler F.K.
    Proc Natl Acad Sci U S A 105:5040-5045(2008) [PubMed] [Europe PMC] [Abstract]
  • "Membrane proteins bind lipids selectively to modulate their structure and function."
    Laganowsky A., Reading E., Allison T.M., Ulmschneider M.B., Degiacomi M.T., Baldwin A.J., Robinson C.V.
    Nature 510:172-175(2014) [PubMed] [Europe PMC] [Abstract]
• uniporter activity Source: EcoCyc <p>Inferred from Mutant Phenotype</p> <p>Describes annotations that are concluded from looking at variations or changes in a gene product such as mutations or abnormal levels and includes techniques such as knockouts, overexpression, anti-sense experiments and use of specific protein inhibitors.</p> <p>More information in the <a href="http://geneontology.org/page/guide%2Dgo%2Devidence%2Dcodes#imp">GO evidence code guide</a></p> Inferred from mutant phenotypeⁱ
  • "Ammonia acquisition in enteric bacteria: physiological role of the ammonium/methylammonium transport B (AmtB) protein."
    Soupene E., He L., Yan D., Kustu S.
    Proc Natl Acad Sci U S A 95:7030-7034(1998) [PubMed] [Europe PMC] [Abstract]

GO - Biological processⁱ

• ammonium transport Source: UniProtKBInferred from direct assayⁱ
  • "Relative CO2/NH3 selectivities of AQP1, AQP4, AQP5, AmtB, and RhAG."
    Musa-Aziz R., Chen L.M., Pelletier M.F., Boron W.F.
    Proc Natl Acad Sci U S A 106:5406-5411(2009) [PubMed] [Europe PMC] [Abstract]
• carbon dioxide transport Source: UniProtKBInferred from direct assayⁱ
  • "Relative CO2/NH3 selectivities of AQP1, AQP4, AQP5, AmtB, and RhAG."
    Musa-Aziz R., Chen L.M., Pelletier M.F., Boron W.F.
    Proc Natl Acad Sci U S A 106:5406-5411(2009) [PubMed] [Europe PMC] [Abstract]
• nitrogen utilization Source: GO_Central <p>Inferred from Biological aspect of Ancestor</p> <p>A type of phylogenetic evidence whereby an aspect of a descendent is inferred through the characterization of an aspect of a ancestral gene.</p> <p>More information in the <a href="http://geneontology.org/page/guide%2Dgo%2Devidence%2Dcodes#iba">GO evidence code guide</a></p> Inferred from biological aspect of ancestorⁱ
  • "Phylogenetic-based propagation of functional annotations within the Gene Ontology consortium."
    Gaudet P., Livstone M.S., Lewis S.E., Thomas P.D.
    Brief Bioinform 12:449-462(2011) [PubMed] [Europe PMC] [Abstract]

<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

Enzyme and pathway databases

Protein family/group databases

<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 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

• UniProt annotation
• GO - Cellular component

Topology

Keywords - Cellular componentⁱ

<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

Chemistry databases

<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

Proteomic databases

<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

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsⁱ

GO - Molecular functionⁱ

• identical protein binding Source: IntActInferred from physical interactionⁱ
  • "Substrate binding, deprotonation, and selectivity at the periplasmic entrance of the Escherichia coli ammonia channel AmtB."
    Javelle A., Lupo D., Ripoche P., Fulford T., Merrick M., Winkler F.K.
    Proc Natl Acad Sci U S A 105:5040-5045(2008) [PubMed] [Europe PMC] [Abstract]
  • "Membrane proteins bind lipids selectively to modulate their structure and function."
    Laganowsky A., Reading E., Allison T.M., Ulmschneider M.B., Degiacomi M.T., Baldwin A.J., Robinson C.V.
    Nature 510:172-175(2014) [PubMed] [Europe PMC] [Abstract]

Protein-protein interaction databases

<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

Secondary structure

3D structure databases

Miscellaneous databases

<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 information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesⁱ

Keywords - Domainⁱ

Phylogenomic databases

Family and domain databases

<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.

<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 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.

        10         20         30         40         50
MKIATIKTGL ASLAMLPGLV MAAPAVADKA DNAFMMICTA LVLFMTIPGI 
        60         70         80         90        100
ALFYGGLIRG KNVLSMLTQV TVTFALVCIL WVVYGYSLAF GEGNNFFGNI 
       110        120        130        140        150
NWLMLKNIEL TAVMGSIYQY IHVAFQGSFA CITVGLIVGA LAERIRFSAV 
       160        170        180        190        200
LIFVVVWLTL SYIPIAHMVW GGGLLASHGA LDFAGGTVVH INAAIAGLVG 
       210        220        230        240        250
AYLIGKRVGF GKEAFKPHNL PMVFTGTAIL YIGWFGFNAG SAGTANEIAA 
       260        270        280        290        300
LAFVNTVVAT AAAILGWIFG EWALRGKPSL LGACSGAIAG LVGVTPACGY 
       310        320        330        340        350
IGVGGALIIG VVAGLAGLWG VTMLKRLLRV DDPCDVFGVH GVCGIVGCIM 
       360        370        380        390        400
TGIFAASSLG GVGFAEGVTM GHQLLVQLES IAITIVWSGV VAFIGYKLAD 
       410        420 
LTVGLRVPEE QEREGLDVNS HGENAYNA                         

Experimental Info

Sequence databases

Genome annotation databases

<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

• 100% Identity
• 90% Identity
• 50% Identity

<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

3D structure databases

Protein-protein interaction databases

Chemistry databases

Protein family/group databases

Proteomic databases

Genome annotation databases

Organism-specific databases

Phylogenomic databases

Enzyme and pathway databases

Miscellaneous databases

Family and domain databases

<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 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

Documents

1. PDB cross-references
   Index of Protein Data Bank (PDB) cross-references
2. SIMILARITY comments
   Index of protein domains and families