RPS-BLAST 2.2.22 [Sep-27-2009]

Database: CddA 
           21,609 sequences; 6,263,737 total letters

Searching..................................................done

Query= gi|254780816|ref|YP_003065229.1| hypothetical protein
CLIBASIA_03535 [Candidatus Liberibacter asiaticus str. psy62]
         (63 letters)



>gnl|CDD|163618 cd00842, MPP_ASMase, acid sphingomyelinase and related proteins,
           metallophosphatase domain.  Acid sphingomyelinase
           (ASMase) is a ubiquitously expressed phosphodiesterase
           which hydrolyzes sphingomyelin in acid pH conditions to
           form ceramide, a bioactive second messenger, as part of
           the sphingomyelin signaling pathway.  ASMase is
           localized at the noncytosolic leaflet of biomembranes
           (for example the luminal leaflet of endosomes, lysosomes
           and phagosomes, and the extracellular leaflet of plasma
           membranes).  ASMase-deficient humans develop
           Niemann-Pick disease. This disease is characterized by
           lysosomal storage of sphingomyelin in all tissues.
           Although ASMase-deficient mice are resistant to
           stress-induced apoptosis, they have greater
           susceptibility to bacterial infection. The latter
           correlates with defective phagolysosomal fusion and
           antibacterial killing activity in ASMase-deficient
           macrophages.  ASMase belongs to the metallophosphatase
           (MPP) superfamily.  MPPs are functionally diverse, but
           all share a conserved domain with an active site
           consisting of two metal ions (usually manganese, iron,
           or zinc) coordinated with octahedral geometry by a cage
           of histidine, aspartate, and asparagine residues. The
           MPP superfamily includes: the phosphoprotein
           phosphatases (PPPs), Mre11/SbcD-like exonucleases,
           Dbr1-like RNA lariat debranching enzymes, YfcE-like
           phosphodiesterases, purple acid phosphatases (PAPs),
           YbbF-like UDP-2,3-diacylglucosamine hydrolases, and acid
           sphingomyelinases (ASMases). The conserved domain is a
           double beta-sheet sandwich with a di-metal active site
           made up of residues located at the C-terminal side of
           the sheets. This domain is thought to allow for
           productive metal coordination.
          Length = 296

 Score = 24.2 bits (53), Expect = 8.2
 Identities = 7/26 (26%), Positives = 13/26 (50%)

Query: 9   VYFQRKSIFNLFKISIATIPVYISIG 34
           V     ++ +L K +    PVY ++G
Sbjct: 92  VLISISNLTSLLKKAFPDTPVYPALG 117


  Database: CddA
    Posted date:  Feb 4, 2011  9:38 PM
  Number of letters in database: 6,263,737
  Number of sequences in database:  21,609
  
Lambda     K      H
   0.331    0.141    0.418 

Gapped
Lambda     K      H
   0.267   0.0631    0.140 


Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 21609
Number of Hits to DB: 730,685
Number of extensions: 26245
Number of successful extensions: 67
Number of sequences better than 10.0: 1
Number of HSP's gapped: 66
Number of HSP's successfully gapped: 2
Length of query: 63
Length of database: 6,263,737
Length adjustment: 35
Effective length of query: 28
Effective length of database: 5,507,422
Effective search space: 154207816
Effective search space used: 154207816
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 15 ( 7.2 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 40 (21.9 bits)
S2: 51 (23.6 bits)