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Gene nusB from Helicobacter pylori 26695: transcription antitermination protein NusB
Member of NCBI Protein Clusters PRK00202(See COMBREX Page ) (See NCBI page)
NCBI Entrez GeneID 898756
UniProtKB accession
RefSeq Protein accession NP_206803.1 (PROVISIONAL)
Gene Symbol(s)
  • symbol: nusB
  • locus tag: HP0001
Organism Helicobacter pylori 26695 (NCBI TaxID: 85962)
Other Cross References:
  • S
    Structure(s) available in PDB:
  • C
    Gene cloned by a participant in the Protein Structure Initiative (PSI): TargetDB. (To obtain a clone, please contact the PSI:Biology-Materials Repository.)
  • U
    Protein purified by a participant in the Protein Structure Initiative (PSI): TargetDB. (If you are interested in collaborating to obtain the protein, please contact the Northeast Structural Genomics consortium).
  • Protein described in EcoCyc:
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Source Predicted function(s)
NCBI Protein Cluster Prediction transcription antitermination protein NusB
Berkeley Phylogenomics Group GO:0005515 protein binding / (References: 19435885)
Berkeley Phylogenomics Group GO:0009383 rRNA (cytosine-C5-)-methyltransferase activity / (References: 19435885)
Functional Status blueblue (function predicted, no experimental evidence)
Source of prediction NCBI Protein Clusters info
BLASTP hits to experimentally validated proteins
green nusB from Thermotoga maritima MSB8
(%_identity=33.33; E_val=6e-13; BitScore=67.8)

other hits with E-value < 1e-05
Share the same Pfam domain composition with the following experimentally validated proteins
green nusB from Escherichia coli str. K-12 substr. MG1655

to see the rest 3 genes click here
GO terms
  • BP: GO:0006353 : transcription termination : IEA
  • MF: GO:0003723 : RNA binding : IEA
  • BP: GO:0006350 : transcription : IEA
  • MF: GO:0003715 : transcription termination factor activity : IEA
  • BP: GO:0045449 : regulation of transcription : IEA
  • BP: GO:0006355 : regulation of transcription, DNA-dependent : IEA
Domain Structure from CDD
  • Terminator_NusB: Transcription termination factor NusB (N protein-Utilization Substance B). NusB plays a key role in the regulation of ri.... (More)

See domain structure on NCBI Conserved Domain Database
Domain structure from Pfam
See domain structure on Pfam Database
The table at right lists genes that may be "functionally linked to" (i.e., participate in a common biological process, or form a protein complex with) the subject gene of this page, as determined by two sequence-independent methods, including phylogenetic profiling and operon membership (determined by OperonDB). (Info.) These linkages may also be viewed graphically using the program VisANT, by clicking on the headers of the table. Note: VisANT requires Java. To install the latest version of Java, see
gene neighbourhoods
phylogenetic profile
ribH6,7-dimethyl-8-ribityllumazine synthase
HP00032-dehydro-3-deoxyphosphooctonate aldolase
HP1590hypothetical protein
rplT50S ribosomal protein L20  
HP1362replicative DNA helicase  
dnaEDNA polymerase III subunit alpha  
rpmI50S ribosomal protein L35  
HP1247DNA polymerase III subunit delta  
ligANAD-dependent DNA ligase LigA  
HP1448ribonuclease P, protein component (rnpA)  
rplI50S ribosomal protein L9  
rplU50S ribosomal protein L21  
HP1051hypothetical protein  
ruvAHolliday junction DNA helicase RuvA  
tigtrigger factor  
mraWS-adenosyl-methyltransferase MraW  
HP0717DNA polymerase III subunits gamma and tau  
HP0955prolipoprotein diacylglyceryl transferase  
rbfAribosome-binding factor A  
infCtranslation initiation factor IF-3  
rpsT30S ribosomal protein S20  
tsfelongation factor Ts  
ruvBHolliday junction DNA helicase RuvB  
rpmE50S ribosomal protein L31  
HP0088RNA polymerase sigma factor RpoD  
defpeptide deformylase  
smpBSsrA-binding protein  
dnaAchromosomal replication initiation protein  
lspAlipoprotein signal peptidase  
trmDtRNA (guanine-N(1)-)-methyltransferase  
secEpreprotein translocase membrane subunit  
secApreprotein translocase subunit SecA