RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy4082
(86 letters)
>gnl|CDD|193496 cd03874, M28_PMSA_TfR_like, M28 Zn-peptidase Transferrin
Receptor-like family. Peptidase M28 family; Transferrin
Receptor (TfR) and prostate-specific membrane antigen
(PSMA, also called glutamate carboxypeptidase or GCP-II)
subfamily. TfR and PSMA are homodimeric type II
transmembrane proteins containing three distinct
domains: protease-like, apical or protease-associated
(PA) and helical domains. The protease-like domain is a
large extracellular portion (ectodomain). In TfR, it
contains a binding site for the transferrin molecule and
has 28% identity to membrane glutamate carboxypeptidase
II (mGCP-II or PSMA). The PA domain is inserted between
the first and second strands of the central beta sheet
in the protease-like domain. TfR1 is widely expressed,
and is a key player in the uptake of iron-loaded
transferrin (Tf) into cells. The TfR1 homodimer binds
two molecules of Tf and the complex is then
internalized. TfR1 may also participate in cell growth
and proliferation. TfR2 binds Tf but with a
significantly lower affinity than TfR1. It is expressed
chiefly in hepatocytes, hematopoietic cells, and
duodenal crypt cells; its expression overlaps with that
of hereditary hemochromatosis protein (HFE). TfR2 is
involved in iron homeostasis; in humans, mutations in
TfR2 are associated with a form of hemochromatosis
(HFE3). PSMA is over-expressed predominantly in prostate
cancer (PCa) as well as neovasculature of most solid
tumors, but not in the vasculature of normal tissues.
PSMA is considered a biomarker for PCa and possibly for
use as an imaging and therapeutic target. The
extracellular domain of PSMA possesses two unique
enzymatic functions: N-acetylated, alpha-linked acidic
dipeptidase (NAALADase) which cleaves terminal glutamate
from the neurodipeptide N-acetyl-aspartyl-glutamate
(NAAG), and folate hydrolase (FOLH) which cleaves the
terminal glutamates from gamma-linked polyglutamates
(carboxypeptidase). A mutation in this gene may be
associated with impaired intestinal absorption of
dietary folates, resulting in low blood folate levels
and consequent hyperhomocysteinemia. Expression of this
protein in the brain may be involved in a number of
pathological conditions associated with glutamate
excitotoxicity. This gene likely arose from a
duplication event of a nearby chromosomal region.
Alternative splicing gives rise to multiple transcript
variants. While related in sequence to peptidase M28
GCP-II, TfR lacks the metal ion coordination centers and
protease activity.
Length = 279
Score = 26.0 bits (58), Expect = 2.4
Identities = 11/20 (55%), Positives = 13/20 (65%), Gaps = 1/20 (5%)
Query: 29 PLRTLLFISMDGRKMGY-GS 47
PLRT+ FIS DG + GS
Sbjct: 114 PLRTIKFISWDGSEYNLAGS 133
>gnl|CDD|183859 PRK13103, secA, preprotein translocase subunit SecA; Reviewed.
Length = 913
Score = 26.1 bits (57), Expect = 2.5
Identities = 9/34 (26%), Positives = 18/34 (52%)
Query: 37 SMDGRKMGYGSMQGIPMVASSPVRHDSPIGMNAL 70
++ ++G + VAS+PVR++ +G N
Sbjct: 863 GLEQPQLGEEEEEPAVAVASAPVRNEQKLGRNEP 896
>gnl|CDD|188476 TIGR03961, rSAM_PTO1314, archaeal radical SAM protein, PTO1314
family. Members of this protein family average about
340 residues in length, with a radical SAM domain in the
N-terminal 200 residues. The taxonomic distribution is
restricted to non-methanogenic archaea, including
Picrophilus torridus (locus PTO1314), Sulfolobus sp.,
Thermoplasma sp., Picrophilus torridus, and
Metallosphaera sedula. The gene neighborhood is not
conserved, and the function of this family is unknown
[Unknown function, Enzymes of unknown specificity].
Length = 332
Score = 25.2 bits (55), Expect = 4.9
Identities = 8/19 (42%), Positives = 12/19 (63%)
Query: 34 LFISMDGRKMGYGSMQGIP 52
LF+S+DG + +GIP
Sbjct: 120 LFVSIDGIGEVHDKQRGIP 138
>gnl|CDD|237587 PRK14019, PRK14019, bifunctional 3,4-dihydroxy-2-butanone
4-phosphate synthase/GTP cyclohydrolase II-like protein;
Provisional.
Length = 367
Score = 24.9 bits (55), Expect = 6.7
Identities = 15/38 (39%), Positives = 19/38 (50%), Gaps = 5/38 (13%)
Query: 41 RKMGYGSMQGIPMVASSPVRHDSPIGMNALEVTSYQPP 78
R +G G M+ + SSP + S G LEVT Y P
Sbjct: 332 RDLGVGKMR----LLSSPRKFPSMSGFG-LEVTGYVPM 364
>gnl|CDD|133028 cd04185, GT_2_like_b, Subfamily of Glycosyltransferase Family GT2
of unknown function. GT-2 includes diverse families of
glycosyltransferases with a common GT-A type structural
fold, which has two tightly associated beta/alpha/beta
domains that tend to form a continuous central sheet of
at least eight beta-strands. These are enzymes that
catalyze the transfer of sugar moieties from activated
donor molecules to specific acceptor molecules, forming
glycosidic bonds. Glycosyltransferases have been
classified into more than 90 distinct sequence based
families.
Length = 202
Score = 24.5 bits (54), Expect = 8.8
Identities = 9/28 (32%), Positives = 13/28 (46%)
Query: 53 MVASSPVRHDSPIGMNALEVTSYQPPWK 80
V + V H + I + V + PPWK
Sbjct: 164 YVPDAVVVHKTAINKGSSAVVNIDPPWK 191
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.326 0.137 0.432
Gapped
Lambda K H
0.267 0.0850 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 4,421,680
Number of extensions: 348157
Number of successful extensions: 351
Number of sequences better than 10.0: 1
Number of HSP's gapped: 351
Number of HSP's successfully gapped: 6
Length of query: 86
Length of database: 10,937,602
Length adjustment: 54
Effective length of query: 32
Effective length of database: 8,542,486
Effective search space: 273359552
Effective search space used: 273359552
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 15 ( 7.0 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 40 (21.7 bits)
S2: 53 (24.0 bits)