>gnl|CDD|88437 cd04472, S1_PNPase, S1_PNPase: Polynucleotide phosphorylase (PNPase), ), S1-like RNA-binding domain. PNPase is a polyribonucleotide nucleotidyl transferase that degrades mRNA. It is a trimeric multidomain protein. The C-terminus contains the S1 domain which binds ssRNA. This family is classified based on the S1 domain. PNPase nonspecifically removes the 3' nucleotides from mRNA, but is stalled by double-stranded RNA structures such as a stem-loop. Evidence shows that a minimum of 7-10 unpaired nucleotides at the 3' end, is required for PNPase degradation. It is suggested that PNPase also dephosphorylates the RNA 5' end. This additional activity may regulate the 5'-dependent activity of RNaseE in vivo.. Length = 68

 Score = 56.6 bits (137), Expect = 2e-08
 Identities = 28/67 (41%), Positives = 45/67 (67%), Gaps = 2/67 (2%)

Query: 198 GQVIEGTVKNITDYGVFVD-LSGVDGLLHVTDIAWHRILHPSKVLSIGQQVKVKIIRINQ 256
           G++ EG V  I D+G FV+ L G DGL+H+++++  R+     VL +G +VKVK+I ++ 
Sbjct: 1   GKIYEGKVVKIKDFGAFVEILPGKDGLVHISELSDERVEKVEDVLKVGDEVKVKVIEVD- 59

Query: 257 ETHRISL 263
           +  RISL
Sbjct: 60  DRGRISL 66