Eukaryotes
List of the RNase H homologues        
The accession numbers for the proteins that are classified as Type 1 or Type 2 RNases H are shown. Type 2 RNases H are further classified into two families which are either homologous to bacterial RNase HII (HII) or HIII (HIII). The accession numbers for the proteins which do not or must not have RNase H activity are shown in parentheses, and those for the proteins whose RNase activities have been identified are underlined. Dozens of the viral RNase H sequences have been determined, and seven of them are listed as representatives.
origins Abbrev.   Type 1 RNases H Type 2 RNases H
HII HIII
Retroviruses (domain of RT)
  bovine leukemia virus* BLV GenBank S83529    
  equine infectious anemia virus* EIAV Swiss P03371    
  human immunodeficiency virus type-1* HIV Swiss U53871    
  human T-cell leukemia virus type-1* HTLV Swiss P03362    
  Moloney leukemia virus* MoLV 223354    
  Rous sarcoma virus* RSV GenBank AF052428    
  visna lentivirus* VL 476449    
Bacteria
(Gram-positive)
  Bacillus subtilis* Bsu (Swiss P54162) EMBL Z99112 EMBL Z75208
  Enterococcus faecalis Efa (Swiss P36921) site1)  
  Lactococcus lactis Lla   GenBank AF005098**  
  Mycoplasma capricolum Mca   PIR S46901**  
  Mycobacterium leprae Mle   EMBL Z97369  
  Mycobacterium smegmatis Msm Swiss Q07705    
  Mycobacterium tuberculosis* Mtu (Swiss Q10512) Swiss Q10793  
  Mycoplasma genitalium* Mge     Swiss P47441
  Mycoplasma pneumoniae* Mpn     Swiss P75446
  Ruminococcus flavefaciens Rfl EMBL AJ003152**    
  Streptococcus pneumoniae Spn   site1) GenBank U93576
  Streptomyces coelicolor Sco   EMBL AL022374  
(Proteobacteria)
  Buchnera aphidicola Bap Swiss Q08885    
  Brucella melitensis Bme   GenBank AF054610  
  Caulobacter crescentus Ccr   Swiss P52975**  
  Escherichia coli* Eco Swiss P00647 Swiss P10442  
  Haemophilus influenzae* Hin Swiss P43807 Swiss P43808  
  Helicobacter pylori* Hpy Swiss P56120 Swiss P56121  
  Magnetospirillum sp. Msp   DDBJ D32253  
  Rickettsia prowazekii* Rpr 3861258 3860766  
  Salmonella typhimurium Sty EMBL X57159 Swiss P40675**  
  Vibrio cholerae Vch site**1) Swiss P52021**  
  Zymomonas mobilis Zmo GenBank AF060218    
(Bacteroides-Flavobacterium group)
  Porphyromonas gingivalis     EMBL X95938**  
(Deinococcus-Thermus)
  Deinococcus radiodurans Dra site**1) site1)  
  Thermus thermophilus Tth Swiss P29253    
(Planctomyces, Chlamydia and relatives)
  Chlamydia trachomatis* Ctr   GenBank AE001277 GenBank AE001275
(Spirochaetes)
  Borrelia burgdorferi* Bbu   GenBank AE001118  
  Treponema pallidum* Tpa Genbank AE001215    
(Green sulfur bacteria)
  Chlorobium tepidum Cte site**1) site1)  
(Cyanobacteria)
  Synechocystis sp. PCC6803* Ssp DDBJ D64004 DDBJ D90899  
(Others)
  Aquifex aeolicus* Aae   GenBank AE000765 GenBank AE000755
  Thermotoga maritima Tma   site1)  
Archaea
  Archaeoglobus fulgidus* Afu   GenBank AE001062  
  Methanobacterium thermoautotrophicum* Mth   GenBank AE000875  
  Methanococcus jannaschii* Mja   GenBank U67470  
  Pyrococcus furiosus Pfu   site1)  
  Pyrococcus horikoshii* Pho   DDBJ AP000006  
  Pyrococcus kodakaraensis Pko   DDBJ AB012613  
Eukaryotes
  Saccharomyces cerevisiae* Sce Swiss Q04740 EMBL Z71348  
  Schizosaccharomyces pombe Spo GenBank AF048992 Swiss Q10236  
  Arabidopsis thaliana Ath   EMBL AL0313692)  
  Crithidia fasciculata Cfa Swiss Q07762    
  Trypanosoma brucei Tbr GenBank U74470    
  Caenorhabditis elegans Cel GenBank U41994 EMBL Z66524  
  Drosophila melanogaster Dme GenBank AF032921    
  Gallus gallus Gga Swiss D26340    
  Mus musculus Mmu GenBank AF048993 W71720**  
  Homo sapiens Hsa GenBank AF048994 EMBL Z97029  
*The complete genome sequence has been determined.        
**Only the partial sequence is available.        
1)http://www.ncbi.nlm.nih.gov/BLAST/unfinishedgenome.html        
2) http://www.ncbi.nlm.nih.gov/ BLAST/        

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