Entry: O33125 Genes: hupB hlp lbp21 ML1683 MLCB637.34 Length: 200 aa

DNA-binding protein HupB (HupB)

DBH_MYCLE Mycobacterium leprae (strain TN)
Navigate Overview Model Scores RCSB 1D Mol* Pockets B-Cell Epitopes Function and interactions Ontology and localisation Sequence features and PTMs Evidence and cross-references

Summary

Download FASTA UniProt: O33125 ML Locus: ML1683
Entry O33125
Reviewed reviewed
Entry Name DBH_MYCLE
Gene Names hupB hlp lbp21 ML1683 MLCB637.34
ML locus tag ML1683
Organism Mycobacterium leprae (strain TN)
Length 200 aa
Mass 20970 Da
Annotation 5.0
Annotation Summary

Evidence and cross-references

PubMed ID 10449784; 11234002; 21698192
DOI ID 10.1073/pnas.96.17.9857; 10.1038/35059006; 10.1371/journal.pone.0020985
STRING 272631.gene:17575526;
KEGG mle:ML1683;
eggNOG COG0776;
OrthoDB 9799835at2;
InterPro IPR000119;IPR020816;IPR010992;

Oligomer Models

Best Boltz2 oligomer and local AlphaFold‑3 homooligomer structure models matched to ML1683, with the same model switching, Mol*, Nightingale, pLDDT, PAE, and download functionality as monomers.
Count: 1
Assembly Method Template / Source Overall Rank Download
Homo 2-mer Boltz2 4DKY 0.594473 Download Model

Ligands

Curated ligands imported from the selected oligomer template/YAML rows. The displayed ligand code is the original template CCD code; predicted-model placeholders such as LIG1/LIG2 are not shown. Click a ligand code to focus the ligand in Mol*.
Ligands: 0
Ligand Code Ligand Name PubChem ID
No curated ligand rows were found for this oligomer in the database.

Monomer Models

Monomer structure models for ML1683, retaining all existing model selection, Mol*, Nightingale, pLDDT, PAE, and download functionality.
Count: 4
Assembly Method Model Overall Rank Download
Monomer Boltz2 0 0.574418 Download Model
Monomer AlphaFold‑3 3 0.772112 Download Model
Monomer Boltz 0 0.616479 Download Model
Monomer CHAI 1 0.094001 Download Model

Sequence & Feature Viewer

Residue-level feature tracks for the loaded model — pLDDT confidence colouring, mapped annotations, and interactive PAE selection ranges. Drag a region on the heatmap to highlight it here and in Mol*.
RCSB 1D
Sequence viewer will initialise once a structure model is loaded.
Mol* — ML1683

Mol* Structure Viewer

Local mmCIF model display for ML1683 with Mol* controls hidden.
Default: Homo 2-mer • Boltz2
Preparing Homo 2-mer • Boltz2 model 0 for ML1683…
Residue focus: none
Heterooligomer ML IDs / chain selection

PAE Map Panel

Predicted aligned error heatmap for the currently loaded model, when pairwise confidence data are available in the local mmCIF.
PAE • Waiting for Model
PAE Heatmap
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Scored residue
Aligned residue
Hover over the heatmap to inspect residue-pair PAE values.
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B-cell Epitope Propensity

Per-residue conformational B-cell epitope predictions from DiscoTope-3.0.
Epitope · Loading
Low
Epitope
Residue number Residue type DiscoTope-3.0 score Focus
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Annotation Summary

Function and interactions

EC number 1.16.3.1
Catalytic activity CATALYTIC ACTIVITY: Reaction=4 Fe(2+) + O2 + 4 H(+) = 4 Fe(3+) + 2 H2O; Xref=Rhea:RHEA:11148, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:15379, ChEBI:CHEBI:29033, ChEBI:CHEBI:29034; EC=1.16.3.1; Evidence={ECO:0000269|PubMed:21698192}; PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:11149; Evidence={ECO:0000269|PubMed:21698192};
Subunit structure SUBUNIT: Binds to human laminin-2. {ECO:0000269|PubMed:10449784}.
Annotation Summary

Ontology and localisation

Gene Ontology (biological process) chromosome condensation [GO:0030261]
Gene Ontology (cellular component) cell surface [GO:0009986]; cytosol [GO:0005829]; nucleoid [GO:0009295]
Gene Ontology (GO) cell surface [GO:0009986]; cytosol [GO:0005829]; nucleoid [GO:0009295]; DNA binding [GO:0003677]; ferric iron binding [GO:0008199]; ferroxidase activity [GO:0004322]; structural constituent of chromatin [GO:0030527]; chromosome condensation [GO:0030261]
Gene Ontology (molecular function) DNA binding [GO:0003677]; ferric iron binding [GO:0008199]; ferroxidase activity [GO:0004322]; structural constituent of chromatin [GO:0030527]
Gene Ontology IDs GO:0003677; GO:0004322; GO:0005829; GO:0008199; GO:0009295; GO:0009986; GO:0030261; GO:0030527
Subcellular location [CC] SUBCELLULAR LOCATION: Cytoplasm, nucleoid {ECO:0000250|UniProtKB:Q9ZHC5}. Secreted, cell wall {ECO:0000269|PubMed:10449784}. Cell surface {ECO:0000269|PubMed:10449784}.
Protein families Bacterial histone-like protein family, Long actinobacterial subfamily
Sequence similarities SIMILARITY: Belongs to the bacterial histone-like protein family. Long actinobacterial subfamily. {ECO:0000305}.
Annotation Summary

Sequence features and PTMs

Chain CHAIN 1..200; /note="DNA-binding protein HupB"; /id="PRO_0000104948"
Modified residue MOD_RES 3; /note="N6-acetyllysine"; /evidence="ECO:0000250|UniProtKB:A5U6Z7"; MOD_RES 72; /note="N6-acetyllysine"; /evidence="ECO:0000250|UniProtKB:A5U6Z7"; MOD_RES 86; /note="N6-acetyllysine"; /evidence="ECO:0000250|UniProtKB:A5U6Z7"; MOD_RES 103; /note="N6-acetyllysine"; /evidence="ECO:0000250|UniProtKB:A5U6Z7"; MOD_RES 137; /note="N6-acetyllysine"; /evidence="ECO:0000250|UniProtKB:A5U6Z7"; MOD_RES 144; /note="N6-acetyllysine"; /evidence="ECO:0000250|UniProtKB:A5U6Z7"; MOD_RES 156; /note="N6-acetyllysine"; /evidence="ECO:0000250|UniProtKB:A5U6Z7"
Post-translational modification PTM: May also be methylated and possibly phosphorylated in vivo. {ECO:0000250|UniProtKB:A5U6Z7, ECO:0000250|UniProtKB:P9WMK7}.
Region REGION 1..90; /note="Bacterial histone-like domain"; REGION 101..200; /note="Degenerate repeats region"; REGION 179..200; /note="Disordered"; /evidence="ECO:0000256|SAM:MobiDB-lite"