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K9RZL6 · K9RZL6_CHAAC

Function

function

Monomeric globin with a bis-histidyl six-coordinate heme-iron atom through which it can bind dioxygen, carbon monoxide and nitric oxide. Could help transport oxygen and increase its availability to the metabolically active neuronal tissues, though its low quantity in tissues as well as its high affinity for dioxygen, which may limit its oxygen-releasing ability, argue against it. The ferrous/deoxygenated form exhibits a nitrite reductase activity and it could produce nitric oxide which in turn inhibits cellular respiration in response to hypoxia. In its ferrous/deoxygenated state, it may also exhibit GDI (Guanine nucleotide Dissociation Inhibitor) activity toward heterotrimeric G-alpha proteins, thereby regulating signal transduction to facilitate neuroprotective responses in the wake of hypoxia and associated oxidative stress.

Catalytic activity

GO annotations

all annotationsall molecular functionvirus receptor activitydna bindingrna bindingcytoskeletal motor activitycatalytic activitygtpase activitystructural molecule activitytransporter activitycytoskeletal protein bindinglipid bindingcyclase activityantioxidant activityoxidoreductase activitytransferase activityhydrolase activitylyase activityisomerase activityligase activityprotein tag activitycargo receptor activityhistone bindingprotein folding chaperonetranslation regulator activitynutrient reservoir activityreceptor ligand activitymolecular transducer activitymolecular adaptor activitytoxin activitycell adhesion mediator activitymolecular function regulator activityvirus coreceptor activitycatalytic activity, acting on a proteincatalytic activity, acting on dnacatalytic activity, acting on rnamolecular carrier activitytranscription regulator activitygeneral transcription initiation factor activitymolecular sensor activitymolecular sequestering activityatp-dependent activityother molecular functionall biological processmitotic cell cyclecytokinesiscytoplasmic translationimmune system processmuscle system processcirculatory system processrenal system processrespiratory system processcarbohydrate metabolic processgeneration of precursor metabolites and energydna replicationdna repairdna recombinationchromatin organizationdna-templated transcriptionregulation of dna-templated transcriptiontrna metabolic processprotein foldingprotein glycosylationamino acid metabolic processmodified amino acid metabolic processlipid metabolic processvitamin metabolic processsulfur compound metabolic processintracellular protein transportnucleocytoplasmic transportautophagyinflammatory responsemitochondrion organizationcytoskeleton organizationmicrotubule-based movementperoxisome organizationlysosome organizationchromosome segregationcell adhesionestablishment or maintenance of cell polarityprogrammed cell deathphotosynthesismrna metabolic processsnrna metabolic processvesicle-mediated transportreproductive processdigestive system processsignalingcell differentiationprotein catabolic processextracellular matrix organizationregulatory ncrna-mediated gene silencingtelomere organizationcell junction organizationwound healingribosome biogenesiscilium organizationanatomical structure developmentcell motilitynervous system processendocrine processprotein maturationtransmembrane transportnucleobase-containing small molecule metabolic processhepaticobiliary system processmembrane organizationprotein-containing complex assemblycell wall organization or biogenesisnitrogen cycle metabolic processprotein localization to plasma membranedefense response to other organismdetoxificationmeiotic nuclear divisionmitotic nuclear divisionmitochondrial gene expressioncarbohydrate derivative metabolic processother biological processall cellular componentnuclear chromosomeextracellular regionextracellular spacecell wallnucleusnuclear envelopenucleoplasmchromosomenucleolusmitochondrionlysosomeendosomevacuoleperoxisomeendoplasmic reticulumgolgi apparatuslipid dropletmicrotubule organizing centercytosolribosomecytoskeletonplasma membraneciliumplastidthylakoidexternal encapsulating structureextracellular matrixcytoplasmic vesicleorganelleother cellular component
Cell color indicative of number of GO terms
AspectTerm
Molecular Functionheme binding
Molecular Functionoxygen binding
Molecular Functionoxygen carrier activity
Biological Processresponse to hypoxia

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Nitrite reductase

Gene names

    • Name
      Ngb

Organism names

Accessions

  • Primary accession
    K9RZL6

Subcellular Location

Cytoplasm, cytosol

Interaction

Subunit

Monomer. Homodimers and homotetramers. Mainly monomeric but also detected as part of homodimers and homotetramers.

Structure

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain4-148Globin

Sequence similarities

Belongs to the globin family.

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    159
  • Mass (Da)
    17,718
  • Last updated
    2013-03-06 v1
  • MD5 Checksum
    564CD883B7E364E0A3F22685094D385B
MEKLSEKDKELIRGSWESLGKNKVPHGVVMFSRLFELDPELLTLFHYTTNCGSTQDCLSSPEFLEHVTKVMLVIDAAVSHLDDLPSLEDFLLNLGRKHQAVGVNTQSFAEVGESLLYMLQCSLGQAYTAPLRQAWLNLYSIVVAAMSQGWAKNGEDKAD

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
JQ684711
EMBL· GenBank· DDBJ
AFY62986.1
EMBL· GenBank· DDBJ
mRNA

Similar Proteins

Disclaimer

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