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metadata
license: mit
language:
  - en
tags:
  - biology
  - protein structure
  - token classification
widget:
  - text: >-
      N-terminal acetylation (Nt-acetylation), carried out by N-terminal
      acetyltransferases (NATs), is a conserved and primary modification of
      nascent peptide chains. Naa60 (also named NatF) is a recently identified
      NAT found only in multicellular eukaryotes. This protein was shown to
      locate on the Golgi apparatus and mainly catalyze the Nt-acetylation of
      transmembrane proteins, and it also harbors lysine Nε-acetyltransferase
      (KAT) activity to catalyze the acetylation of lysine ε-amine. Here, we
      report the crystal structures of human Naa60 (hNaa60) in complex with
      Acetyl-Coenzyme A (Ac-CoA) or Coenzyme A (CoA). The hNaa60 protein
      contains an amphipathic helix following its GNAT domain that may
      contribute to Golgi localization of hNaa60, and the β7-β8 hairpin adopted
      different conformations in the hNaa60(1-242) and hNaa60(1-199) crystal
      structures. Remarkably, we found that the side-chain of Phe 34 can
      influence the position of the coenzyme, indicating a new regulatory
      mechanism involving enzyme, co-factor and substrates interactions.
      Moreover, structural comparison and biochemical studies indicated that Tyr
      97 and His 138 are key residues for catalytic reaction and that a
      non-conserved β3-β4 long loop participates in the regulation of hNaa60
      activity.
model-index:
  - name: BiomedNLP-PubMedBERT-ProteinStructure-NER-v1.2
    results:
      - task:
          name: NER
          type: token-classification
        metrics:
          - name: NER Precision
            type: precision
            value: 0.87
          - name: NER Recall
            type: recall
            value: 0.89
          - name: NER F Score
            type: f_score
            value: 0.88
Feature Description
Name BiomedNLP-PubMedBERT-ProteinStructure-NER-v1.2
Default Pipeline transformer, ner
Components transformer, ner
Vectors 0 keys, 0 unique vectors (0 dimensions)
Sources n/a
License n/a
Author Melanie Vollmar

Label Scheme

View label scheme (19 labels for 1 components)
Component Labels
ner "chemical", "complex_assembly", "evidence", "experimental_method", "gene", "mutant", "oligomeric_state", "protein", "protein_state", "protein_type", "ptm", "residue_name", "residue_name_number", "residue_number", "residue_range", "site", "species", "structure_element", "taxonomy_domain"

Scores for entity types

entity type precision recall F1 sample number
"chemical" 0.84 0.90 0.87 194
"complex_assembly" 0.85 0.76 0.80 51
"evidence" 0.74 0.76 0.75 106
"experimental_method" 0.77 0.75 0.76 116
"gene" 0.86 0.92 0.89 74
"mutant" 0.83 0.92 0.88 258
"oligomeric_state" 0.94 1.00 0.97 15
"protein" 0.91 0.93 0.92 463
"protein_state" 0.80 0.83 0.81 191
"protein_type" 0.85 0.84 0.84 166
"ptm" 0.88 0.76 0.81 29
"residue_name" 0.86 0.95 0.91 22
"residue_name_number" 0.99 0.99 0.99 341
"residue_number" 1.00 1.00 1.00 13
"residue_range" 1.00 0.80 0.89 10
"site" 0.83 0.82 0.82 99
"species" 0.96 0.98 0.97 44
"structure_element" 0.88 0.86 0.87 319
"taxonomy_domain" 0.95 0.97 0.96 79

Data and annotations

The dataset can be found here: https://huggingface.co/datasets/PDBEurope/protein_structure_NER_model_v1.2