RPS-BLAST 2.2.22 [Sep-27-2009]
Database: CddA
21,609 sequences; 6,263,737 total letters
Searching..................................................done
Query= gi|254781159|ref|YP_003065572.1| hypothetical protein
CLIBASIA_05330 [Candidatus Liberibacter asiaticus str. psy62]
(67 letters)
>gnl|CDD|176249 cd08289, MDR_yhfp_like, Yhfp putative quinone oxidoreductases.
yhfp putative quinone oxidoreductases (QOR). QOR
catalyzes the conversion of a quinone + NAD(P)H to a
hydroquinone + NAD(P)+. Quinones are cyclic diones
derived from aromatic compounds. Membrane bound QOR
actin the respiratory chains of bacteria and
mitochondria, while soluble QOR acts to protect from
toxic quinones (e.g. DT-diaphorase) or as a soluble
eye-lens protein in some vertebrates (e.g.
zeta-crystalin). QOR reduces quinones through a
semi-quinone intermediate via a NAD(P)H-dependent single
electron transfer. QOR is a member of the medium chain
dehydrogenase/reductase family, but lacks the
zinc-binding sites of the prototypical alcohol
dehydrogenases of this group. NAD(P)(H)-dependent
oxidoreductases are the major enzymes in the
interconversion of alcohols and aldehydes, or ketones.
Alcohol dehydrogenase in the liver converts ethanol and
NAD+ to acetaldehyde and NADH, while in yeast and some
other microorganisms ADH catalyzes the conversion
acetaldehyde to ethanol in alcoholic fermentation. ADH
is a member of the medium chain alcohol dehydrogenase
family (MDR), which has a NAD(P)(H)-binding domain in a
Rossmann fold of a beta-alpha form. The NAD(H)-binding
region is comprised of 2 structurally similar halves,
each of which contacts a mononucleotide. A GxGxxG motif
after the first mononucleotide contact half allows the
close contact of the coenzyme with the ADH backbone.
The N-terminal catalytic domain has a distant homology
to GroES. These proteins typically form dimers
(typically higher plants, mammals) or tetramers (yeast,
bacteria), and have 2 tightly bound zinc atoms per
subunit, a catalytic zinc at the active site, and a
structural zinc in a lobe of the catalytic domain.
NAD(H) binding occurs in the cleft between the catalytic
and coenzyme-binding domains at the active site, and
coenzyme binding induces a conformational closing of
this cleft. Coenzyme binding typically precedes and
contributes to substrate binding. In human ADH
catalysis, the zinc ion helps coordinate the alcohol,
followed by deprotonation of a histidine, the ribose of
NAD, a serine, then the alcohol, which allows the
transfer of a hydride to NAD+, creating NADH and a
zinc-bound aldehyde or ketone. In yeast and some
bacteria, the active site zinc binds an aldehyde,
polarizing it, and leading to the reverse reaction.
Length = 326
Score = 26.1 bits (58), Expect = 2.2
Identities = 11/44 (25%), Positives = 18/44 (40%), Gaps = 5/44 (11%)
Query: 2 WRRV---FAITLFSSIPLQKISF--LPQIFSLIITCGAQGKYCV 40
WRR+ T + Q+I+ LP+ I+ G+ V
Sbjct: 281 WRRLATDLKPTQLLNEIKQEITLDELPEALKQILQGRVTGRTVV 324
>gnl|CDD|35428 KOG0207, KOG0207, KOG0207, Cation transport ATPase [Inorganic ion
transport and metabolism].
Length = 951
Score = 25.7 bits (56), Expect = 2.6
Identities = 10/29 (34%), Positives = 15/29 (51%), Gaps = 3/29 (10%)
Query: 2 WRRVFAITLFSSIPLQKISFLPQIFSLII 30
W+R F I+L S+P+ SF I +
Sbjct: 234 WKRPFLISLGFSLPV---SFAMIICPPLA 259
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
0.328 0.137 0.414
Gapped
Lambda K H
0.267 0.0710 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 21609
Number of Hits to DB: 742,691
Number of extensions: 27388
Number of successful extensions: 112
Number of sequences better than 10.0: 1
Number of HSP's gapped: 112
Number of HSP's successfully gapped: 9
Length of query: 67
Length of database: 6,263,737
Length adjustment: 38
Effective length of query: 29
Effective length of database: 5,442,595
Effective search space: 157835255
Effective search space used: 157835255
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 15 ( 7.1 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 40 (21.8 bits)
S2: 51 (23.5 bits)