FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term polypeptide_region ID (Ontology) SO:0000839 (Sequence Ontology)
Definition Biological sequence region that can be assigned to a specific subsequence of a polypeptide.
Comment
Links to External Ontologies
SO.org
Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Sequence Features (FBsf)  FEATURE_TYPE   188707
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 Full annotation statements 
Relevant FlyBase reports
 Sequence Features
 polypeptide_region (all annotations which use CV term, excluding "NOT" statements)   188707
Spanning Tree (Parents/Children)
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region
 |__biological_region__
biological_region      |
 |__polypeptide________|
                       polypeptide_region  188713 rec.
                        |__2A_self_cleaving_peptide_region
                        |__cleaved_peptide_region
                        |   |__c_terminal_region
                        |   |__central_hydrophobic_region_of_signal_peptide
                        |   |__cleaved_for_gpi_anchor_region
                        |   |__cleaved_initiator_methionine
                        |   |__intein
                        |   |__lipoprotein_signal_peptide
                        |   |__n_terminal_region
                        |   |__propeptide(+)
                        |   |__propeptide_cleavage_site
                        |__compositionally_biased_region_of_peptide
                        |__hydrophobic_region_of_peptide
                        |__immature_peptide_region 6 rec.
                        |   |__cleaved_peptide_region
                        |   |__mature_protein_region 6 rec.
                        |__immunoglobulin_region
                        |   |__C_region
                        |   |__V_region
                        |__mature_protein_region 6 rec.
                        |   |__active_peptide
                        |__peptide_localization_signal
                        |   |__endosomal_localization_signal
                        |   |__ER_retention_signal
                        |   |__lysosomal_localization_signal
                        |   |__mitochondrial_targeting_signal
                        |   |__nuclear_export_signal
                        |   |__nuclear_localization_signal
                        |   |__nuclear_rim_localization_signal
                        |   |__signal_peptide(+)
                        |   |__transit_peptide
                        |   |__vacuolar_sorting_signal
                        |__polypeptide_conserved_region
                        |   |__polypeptide_domain
                        |   |__polypeptide_motif(+)
                        |   |__polypeptide_repeat
                        |__polypeptide_structural_region
                        |   |__extramembrane_polypeptide_region(+)
                        |   |__intramembrane_polypeptide_region(+)
                        |   |__intrinsically_unstructured_polypeptide_region
                        |   |__membrane_structure(+)
                        |   |__polypeptide_domain
                        |   |__polypeptide_secondary_structure(+)
                        |   |__polypeptide_structural_motif(+)
                        |__polypeptide_variation_site
                        |   |__alternate_sequence_site
                        |   |__mutated_variant_site
                        |   |__natural_variant_site
                        |__protease_site
                        |__protein_stability_element
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Is a biological_region
Part of polypeptide
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Synonyms
  • "positional" RELATED
    "positional polypeptide feature" RELATED
    "region" NARROW
    "region or site annotation" RELATED
    "site" NARROW
Secondary IDs
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