RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy14180
(131 letters)
>gnl|CDD|238200 cd00326, alpha_CA, Carbonic anhydrase alpha (vertebrate-like)
group. Carbonic anhydrases (CAs) are zinc-containing
enzymes that catalyze the reversible hydration of carbon
dioxide in a two-step mechanism: a nucleophilic attack
of a zinc-bound hydroxide ion on carbon dioxide,
followed by the regeneration of the active site by
ionization of the zinc-bound water molecule and removal
of a proton from the active site. They are ubiquitous
enzymes involved in fundamental processes like
photosynthesis, respiration, pH homeostasis and ion
transport. There are three evolutionary distinct groups
- alpha, beta and gamma carbonic anhydrases - which show
no significant sequence identity or structural
similarity. Most alpha CAs are monomeric enzymes. The
zinc ion is complexed by three histidine residues and a
fourth conserved histidine plays a potential role in
proton transfer.
Length = 227
Score = 168 bits (428), Expect = 5e-54
Identities = 63/125 (50%), Positives = 84/125 (67%), Gaps = 4/125 (3%)
Query: 7 GERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVDGEDSELTGGPL 66
G+RQSP+N+ T+ V D +L PL + Y P + T+ N G+ +V+ D + L+GG L
Sbjct: 1 GKRQSPINIVTSAVVYDPSL--PPLNFDYYPTTSLTLVNNGHTVQVNFDDDGGTLSGGGL 58
Query: 67 HHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQPDGLAVL 126
+Y+L QFH HWG ++ GSEHT+DGK Y ELHLVH+NSD YS+ EAA +P GLAVL
Sbjct: 59 PGRYKLVQFHFHWGSENSPGSEHTIDGKRYPLELHLVHYNSDYYSS--EAAKKPGGLAVL 116
Query: 127 GVLLE 131
GV E
Sbjct: 117 GVFFE 121
>gnl|CDD|215000 smart01057, Carb_anhydrase, Eukaryotic-type carbonic anhydrase.
Carbonic anhydrases are zinc metalloenzymes which
catalyse the reversible hydration of carbon dioxide to
bicarbonate.. CAs have essential roles in facilitating
the transport of carbon dioxide and protons in the
intracellular space, across biological membranes and in
the layers of the extracellular space; they are also
involved in many other processes, from respiration and
photosynthesis in eukaryotes to cyanate degradation in
prokaryotes. There are five known evolutionarily
distinct CA families (alpha, beta, gamma, delta and
epsilon) that have no significant sequence identity and
have structurally distinct overall folds. Some CAs are
membrane-bound, while others act in the cytosol; there
are several related proteins that lack enzymatic
activity. The active site of alpha-CAs is well
described, consisting of a zinc ion coordinated through
3 histidine residues and a water molecule/hydroxide ion
that acts as a potent nucleophile. The enzyme employs a
two-step mechanism: in the first step, there is a
nucleophilic attack of a zinc-bound hydroxide ion on
carbon dioxide; in the second step, the active site is
regenerated by the ionisation of the zinc-bound water
molecule and the removal of a proton from the active
site. Beta- and gamma-CAs also employ a zinc hydroxide
mechanism, although at least some beta-class enzymes do
not have water directly coordinated to the metal ion.
Length = 247
Score = 167 bits (425), Expect = 2e-53
Identities = 59/130 (45%), Positives = 82/130 (63%), Gaps = 4/130 (3%)
Query: 2 FPEASGERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVDGEDSEL 61
P G+RQSP+++ T + D +L KPL Y+ K I N G+ +V+ D + S L
Sbjct: 17 PPFCGGKRQSPIDIVTAEAQYDPSL--KPLKLSYDQPTAKRILNNGHTVQVNFDDDGSTL 74
Query: 62 TGGPLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQPD 121
+GGPL +YRL+QFH HWG ++GSEHT+DGK + ELHLVH+NS +F EA +P
Sbjct: 75 SGGPLPGRYRLKQFHFHWGGSDSEGSEHTIDGKRFPLELHLVHYNSKG--SFSEAVSKPG 132
Query: 122 GLAVLGVLLE 131
GLAV+ V +
Sbjct: 133 GLAVVAVFFK 142
>gnl|CDD|201071 pfam00194, Carb_anhydrase, Eukaryotic-type carbonic anhydrase.
Length = 238
Score = 165 bits (421), Expect = 9e-53
Identities = 71/129 (55%), Positives = 88/129 (68%), Gaps = 4/129 (3%)
Query: 5 ASGERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVD--GEDSELT 62
A+GERQSP+N+ T K D +L KPL+ Y K I N G+ ++V+ D + S L+
Sbjct: 1 ANGERQSPINIQTKKAKYDPSL--KPLSLSYYAATAKEIVNNGHSFQVEFDDSDDKSVLS 58
Query: 63 GGPLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQPDG 122
GGPL YRL+QFH HWG + GSEHTVDGK YA ELHLVHWNS KY ++ EA QPDG
Sbjct: 59 GGPLPGPYRLKQFHFHWGSSDDHGSEHTVDGKKYAAELHLVHWNSTKYGSYKEAQSQPDG 118
Query: 123 LAVLGVLLE 131
LAVLGV ++
Sbjct: 119 LAVLGVFVK 127
>gnl|CDD|239393 cd03119, alpha_CA_I_II_III_XIII, Carbonic anhydrase alpha, isozymes
I, II, and III and XIII. Carbonic anhydrases (CAs) are
zinc-containing enzymes that catalyze the reversible
hydration of carbon dioxide in a two-step mechanism: a
nucleophilic attack of a zinc-bound hydroxide ion on
carbon dioxide, followed by the regeneration of the
active site by ionization of the zinc-bound water
molecule and removal of a proton from the active site.
They are ubiquitous enzymes involved in fundamental
processes like photosynthesis, respiration, pH
homeostasis and ion transport. Most alpha CAs are
monomeric enzymes. The zinc ion is complexed by three
histidines. This vertebrate subgroup comprises isozymes
I, II, and III, which are cytoplasmic enzymes. CA I, for
example, is expressed in erythrocyes of many
vertebrates; CA II is the most active cytosolic isozyme;
while it is being expressed nearly ubiquitously, it
comprises 95% of the renal carbonic anhydrase and is
required for renal acidification; CA III has been
implicated in protection from the damaging effect of
oxidizing agents in hepatocytes. CAXIII may play
important physiological roles in several organs.
Length = 259
Score = 161 bits (410), Expect = 6e-51
Identities = 75/132 (56%), Positives = 89/132 (67%), Gaps = 5/132 (3%)
Query: 2 FPEASGERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVDGED--S 59
FP A G+RQSP+++ T D +L KPL+ Y+P KTI N G+ + V+ D D S
Sbjct: 20 FPIAKGDRQSPIDIKTKDAKHDPSL--KPLSVSYDPATAKTILNNGHSFNVEFDDTDDRS 77
Query: 60 ELTGGPLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQ 119
L GGPL YRL QFH HWG + GSEHTVDG YA ELHLVHWNS KY +FGEAA Q
Sbjct: 78 VLRGGPLTGSYRLRQFHFHWGSSDDHGSEHTVDGVKYAAELHLVHWNS-KYGSFGEAAKQ 136
Query: 120 PDGLAVLGVLLE 131
PDGLAV+GV L+
Sbjct: 137 PDGLAVVGVFLK 148
>gnl|CDD|239402 cd03149, alpha_CA_VII, Carbonic anhydrase alpha, CA isozyme
VII_like subgroup. Carbonic anhydrases (CAs) are
zinc-containing enzymes that catalyze the reversible
hydration of carbon dioxide in a two-step mechanism: a
nucleophilic attack of a zinc-bound hydroxide ion on
carbon dioxide, followed by the regeneration of the
active site by ionization of the zinc-bound water
molecule and removal of a proton from the active site.
They are ubiquitous enzymes involved in fundamental
processes like photosynthesis, respiration, pH
homeostasis and ion transport. Most alpha CAs are
monomeric enzymes. The zinc ion is complexed by three
histidines. This vertebrate subgroup comprises isozyme
VII. CA VII is the most active cytosolic enzyme after CA
II, and may be highly expressed in the brain. Human CA
VII may be a target of antiepileptic
sulfonamides/sulfamates.
Length = 236
Score = 150 bits (381), Expect = 8e-47
Identities = 66/127 (51%), Positives = 87/127 (68%), Gaps = 4/127 (3%)
Query: 7 GERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVD--GEDSELTGG 64
G RQSP+++ +++ D L KPL+ Y+P + +I+N G+ V+ D + + +TGG
Sbjct: 1 GNRQSPIDIVSSEAVYDPKL--KPLSLSYDPCTSLSISNNGHSVMVEFDDSDDKTVITGG 58
Query: 65 PLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQPDGLA 124
PL + YRL+QFH HWG GSEHTVDGK + ELHLVHWN+ KY +FGEAA PDGLA
Sbjct: 59 PLENPYRLKQFHFHWGAKHGSGSEHTVDGKTFPSELHLVHWNAKKYKSFGEAAAAPDGLA 118
Query: 125 VLGVLLE 131
VLGV LE
Sbjct: 119 VLGVFLE 125
>gnl|CDD|239392 cd03118, alpha_CA_V, Carbonic anhydrase alpha, CA isozyme V_like
subgroup. Carbonic anhydrases (CAs) are zinc-containing
enzymes that catalyze the reversible hydration of carbon
dioxide in a two-step mechanism: a nucleophilic attack
of a zinc-bound hydroxide ion on carbon dioxide,
followed by the regeneration of the active site by
ionization of the zinc-bound water molecule and removal
of a proton from the active site. They are ubiquitous
enzymes involved in fundamental processes like
photosynthesis, respiration, pH homeostasis and ion
transport. Most alpha CAs are monomeric enzymes. The
zinc ion is complexed by three histidines. This
vertebrate subgroup comprises isozyme V. CA V is the
mitochondrial isozyme, which may play a role in
gluconeogenesis and ureagenesis and possibly also in
lipogenesis.
Length = 236
Score = 138 bits (349), Expect = 4e-42
Identities = 62/127 (48%), Positives = 78/127 (61%), Gaps = 4/127 (3%)
Query: 7 GERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVD--GEDSELTGG 64
G RQSP+N+ D L PL Y+P I N GY ++V+ D + S ++GG
Sbjct: 1 GTRQSPINIQWRDSVYDPQL--APLRVSYDPATCLYIWNNGYSFQVEFDDSTDKSGISGG 58
Query: 65 PLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQPDGLA 124
PL + YRL+QFH HWG + GSEHTVDG Y ELHLVHWNS KY F EA + +GLA
Sbjct: 59 PLENHYRLKQFHFHWGANNEWGSEHTVDGHTYPAELHLVHWNSVKYENFEEAVMEENGLA 118
Query: 125 VLGVLLE 131
V+GV L+
Sbjct: 119 VIGVFLK 125
>gnl|CDD|239391 cd03117, alpha_CA_IV_XV_like, Carbonic anhydrase alpha, CA_IV,
CA_XV, like isozymes. Carbonic anhydrases (CAs) are
zinc-containing enzymes that catalyze the reversible
hydration of carbon dioxide in a two-step mechanism: a
nucleophilic attack of a zinc-bound hydroxide ion on
carbon dioxide, followed by the regeneration of the
active site by ionization of the zinc-bound water
molecule and removal of a proton from the active site.
They are ubiquitous enzymes involved in fundamental
processes like photosynthesis, respiration, pH
homeostasis and ion transport. There are three
evolutionary distinct groups - alpha, beta and gamma
carbonic anhydrases - which show no significant sequence
identity or structural similarity. Most alpha CAs are
monomeric enzymes. The zinc ion is complexed by three
histidine residues. This subgroup, restricted to
animals, contains isozyme IV and similar proteins such
as mouse CA XV. Isozymes IV is attached to membranes via
a glycosylphosphatidylinositol (GPI) tail. In mammals,
Isozyme IV plays crucial roles in kidney and lung
function, amongst others. This subgroup also contains
the dual domain CA from the giant clam, Tridacna gigas.
T. gigas CA plays a role in the movement of inorganic
carbon from the surrounding seawater to the symbiotic
algae found in the clam's tissues. CA XV is expressed in
several species but not in humans or chimps. Similar to
isozyme CA IV, CA XV attaches to membranes via a GPI
tail.
Length = 234
Score = 121 bits (307), Expect = 1e-35
Identities = 55/127 (43%), Positives = 75/127 (59%), Gaps = 6/127 (4%)
Query: 7 GERQSPVNVDTTKVSSDKTLEEKPLTWK-YNPDKT-KTITNPGYCWRVDVDGEDSELTGG 64
G+RQSP+N+ T KV D+ L P T+ Y+ T TITN G+ +V + + ++++GG
Sbjct: 1 GKRQSPINIVTKKVQYDENL--TPFTFTGYDDTTTNWTITNNGHTVQVTLP-DGAKISGG 57
Query: 65 PLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQPDGLA 124
L Y+ QFH HWG + GSEHT+DG+ Y ELH+VH S EA DGLA
Sbjct: 58 GLPGTYKALQFHFHWGSNGSPGSEHTIDGERYPMELHIVHIKESYNSL-LEALKDSDGLA 116
Query: 125 VLGVLLE 131
VLG +E
Sbjct: 117 VLGFFIE 123
>gnl|CDD|239397 cd03123, alpha_CA_VI_IX_XII_XIV, Carbonic anhydrase alpha, isozymes
VI, IX, XII and XIV. Carbonic anhydrases (CAs) are
zinc-containing enzymes that catalyze the reversible
hydration of carbon dioxide in a two-step mechanism: a
nucleophilic attack of a zinc-bound hydroxide ion on
carbon dioxide, followed by the regeneration of the
active site by ionization of the zinc-bound water
molecule and removal of a proton from the active site.
They are ubiquitous enzymes involved in fundamental
processes like photosynthesis, respiration, pH
homeostasis and ion transport. There are three
evolutionary distinct groups - alpha, beta and gamma
carbonic anhydrases - which show no significant sequence
identity or structural similarity. Alpha CAs are mostly
monomeric enzymes. The zinc ion is complexed by three
histidine residues. This sub-family comprises the
secreted CA VI, which is found in saliva, for example,
and the membrane proteins CA IX, XII, and XIV.
Length = 248
Score = 117 bits (296), Expect = 8e-34
Identities = 59/134 (44%), Positives = 82/134 (61%), Gaps = 8/134 (5%)
Query: 2 FPEASGERQSPVNVDTTKVSSDKTLEEKPLTWK-YN--PDKTKTITNPGYCWRVDVDGED 58
+P G+RQSP+++ T V D +L PL Y+ + T+TN G+ ++ +
Sbjct: 9 YPACGGKRQSPIDIQTDIVQFDPSL--PPLELVGYDLPGTEEFTLTNNGHTVQLSLP-PT 65
Query: 59 SELTGGPLHHKYRLEQFHCHWGCV-SNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAA 117
+ GGP +Y Q H HWG S GSEHT+DG +A ELH+VH+NSDKYS+F EAA
Sbjct: 66 MHIRGGP-GTEYTAAQLHLHWGGRGSLSGSEHTIDGIRFAAELHIVHYNSDKYSSFDEAA 124
Query: 118 GQPDGLAVLGVLLE 131
+PDGLAVL +L+E
Sbjct: 125 DKPDGLAVLAILIE 138
>gnl|CDD|239394 cd03120, alpha_CARP_VIII, Carbonic anhydrase alpha related protein,
group VIII. Carbonic anhydrase related proteins (CARPs)
are sequence similar to carbonic anhydrases. Carbonic
anhydrases are zinc-containing enzymes that catalyze the
reversible hydration of carbon dioxide in a two-step
mechanism. CARPs have lost conserved histidines involved
in zinc binding and consequently their catalytic
activity. CARP VIII may play roles in various biological
processes of the central nervous system, and could be
involved in protein-protein interactions. CARP VIII has
been shown to bind inositol 1,4,5-triphosphate (IP3)
receptor type I (IP3RI), reducing the affinity of the
receptor for IP3. IP3RI is an intracellular IP3-gated
Ca2+ channel located on intracellular Ca2+ stores. IP3RI
converts IP3 signaling into Ca2+ signaling thereby
participating in a variety of cell functions.
Length = 256
Score = 106 bits (265), Expect = 3e-29
Identities = 52/133 (39%), Positives = 85/133 (63%), Gaps = 3/133 (2%)
Query: 1 MFPEASGERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVDGEDSE 60
+FPEA+GE QSP+N+++ + D +L E L+ Y + + N G+ ++ + + S
Sbjct: 7 LFPEANGEYQSPINLNSREARYDPSLLEVRLSPNYVVCRDCEVINDGHTIQIILKSK-SV 65
Query: 61 LTGGPL--HHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAG 118
L+GGPL H++ L + HWG + +GSEHTV+ KA+ ELHL+HWNS YS+ EA G
Sbjct: 66 LSGGPLPQGHEFELAEVRFHWGRENQRGSEHTVNFKAFPMELHLIHWNSTLYSSLEEAMG 125
Query: 119 QPDGLAVLGVLLE 131
+P G+A++ + ++
Sbjct: 126 KPHGIAIIALFVQ 138
>gnl|CDD|239395 cd03121, alpha_CARP_X_XI_like, Carbonic anhydrase alpha related
protein: groups X, XI and related proteins. This
subgroup contains carbonic anhydrase related proteins
(CARPs) X and XI, which have been implicated in various
biological processes of the central nervous system.
CARPs are sequence similar to carbonic anhydrases.
Carbonic anhydrases are zinc-containing enzymes that
catalyze the reversible hydration of carbon dioxide in a
two-step mechanism. CARPs have lost conserved histidines
involved in zinc binding and consequently their
catalytic activity. CARP XI plays a role in the
development of gastrointestinal stromal tumors.
Length = 256
Score = 101 bits (254), Expect = 1e-27
Identities = 45/126 (35%), Positives = 74/126 (58%), Gaps = 3/126 (2%)
Query: 7 GERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVDGEDS-ELTGGP 65
G RQSPV+++ +++ D L PL + T N G D + ++GGP
Sbjct: 18 GRRQSPVDIEPSRLLFDPFL--TPLRIDTGRKVSGTFYNTGRHVSFRPDKDPVVNISGGP 75
Query: 66 LHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQPDGLAV 125
L ++YRLE+ H+G +GSEHTV+G+A+ GE+ L+H+NS+ Y F EA+ P+GL +
Sbjct: 76 LSYRYRLEEIRLHFGREDEQGSEHTVNGQAFPGEVQLIHYNSELYPNFSEASKSPNGLVI 135
Query: 126 LGVLLE 131
+ + ++
Sbjct: 136 VSLFVK 141
>gnl|CDD|239400 cd03126, alpha_CA_XII_XIV, Carbonic anhydrase alpha, isozymes XII
and XIV. Carbonic anhydrases (CAs) are zinc-containing
enzymes that catalyze the reversible hydration of carbon
dioxide in a two-step mechanism: a nucleophilic attack
of a zinc-bound hydroxide ion on carbon dioxide,
followed by the regeneration of the active site by
ionization of the zinc-bound water molecule and removal
of a proton from the active site. They are ubiquitous
enzymes involved in fundamental processes like
photosynthesis, respiration, pH homeostasis and ion
transport. There are three evolutionary distinct groups
- alpha, beta and gamma carbonic anhydrases - which show
no significant sequence identity or structural
similarity. Most alpha CAs are monomeric enzymes. The
zinc ion is complexed by three histidine residues. This
sub-family comprises the membrane proteins CA XII and
XIV.
Length = 249
Score = 100 bits (251), Expect = 3e-27
Identities = 49/132 (37%), Positives = 73/132 (55%), Gaps = 5/132 (3%)
Query: 2 FPEASGERQSPVNVDTTKVSSDKTLEE-KPLTWKYNPDKTKTITNPGYCWRVDVDGEDSE 60
+P G QSP+++ T + D +L + + + + T+TN G+ ++ +
Sbjct: 9 YPFCGGVAQSPIDIHTDILQYDSSLPPLEFHGYNVSGTEQFTLTNNGHTVQLSLP---PT 65
Query: 61 LTGGPLHHKYRLEQFHCHWGCV-SNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQ 119
+ G L KY Q H HWG S +GSEHT+ GK +A ELH+VH+NSDKY A +
Sbjct: 66 MHIGGLPFKYTASQLHLHWGQRGSPEGSEHTISGKHFAAELHIVHYNSDKYPDISTAMNK 125
Query: 120 PDGLAVLGVLLE 131
GLAVLG+L+E
Sbjct: 126 SQGLAVLGILIE 137
>gnl|CDD|239399 cd03125, alpha_CA_VI, Carbonic anhydrase alpha, isozyme VI.
Carbonic anhydrases (CAs) are zinc-containing enzymes
that catalyze the reversible hydration of carbon dioxide
in a two-step mechanism: a nucleophilic attack of a
zinc-bound hydroxide ion on carbon dioxide, followed by
the regeneration of the active site by ionization of the
zinc-bound water molecule and removal of a proton from
the active site. They are ubiquitous enzymes involved in
fundamental processes like photosynthesis, respiration,
pH homeostasis and ion transport. There are three
evolutionary distinct groups - alpha, beta and gamma
carbonic anhydrases - which show no significant sequence
identity or structural similarity. Most alpha CAs are
monomeric enzymes. The zinc ion is complexed by three
histidine residues. This sub-family comprises the
secreted CA VI, which is found in saliva.
Length = 249
Score = 98.3 bits (245), Expect = 2e-26
Identities = 50/132 (37%), Positives = 73/132 (55%), Gaps = 5/132 (3%)
Query: 2 FPEASGERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVDGEDSEL 61
+P G+RQSP+++ +V + +L + L T+TN G+ ++D+ S
Sbjct: 9 YPACGGKRQSPIDIQRREVRFNPSLLQLELVGYEKEQGEFTMTNNGHTVQIDLPPTMSIT 68
Query: 62 TGGPLHHKYRLEQFHCHWGCVSNK--GSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQ 119
TG Y Q H HWG ++ GSEHT+DG Y ELH+VH+NS KY ++ EA +
Sbjct: 69 TGDG--TVYTAVQMHFHWGGRDSEISGSEHTIDGMRYVAELHIVHYNS-KYKSYEEAKDK 125
Query: 120 PDGLAVLGVLLE 131
PDGLAVL L +
Sbjct: 126 PDGLAVLAFLYK 137
>gnl|CDD|239398 cd03124, alpha_CA_prokaryotic_like, Carbonic anhydrase alpha,
prokaryotic-like subfamily. Carbonic anhydrases (CAs)
are zinc-containing enzymes that catalyze the reversible
hydration of carbon dioxide in a two-step mechanism: a
nucleophilic attack of a zinc-bound hydroxide ion on
carbon dioxide, followed by the regeneration of the
active site by ionization of the zinc-bound water
molecule and removal of a proton from the active site.
They are ubiquitous enzymes involved in fundamental
processes like photosynthesis, respiration, pH
homeostasis and ion transport. Most alpha CAs are
monomeric enzymes. The zinc ion is complexed by three
histidines. This sub-family includes bacterial carbonic
anhydrase alpha, as well as plant enzymes such as
tobacco nectarin III and yam dioscorin and, carbonic
anhydrases from molluscs, such as nacrein, which are
part of the organic matrix layer in shells. Other
members of this family may be involved in maintaining pH
balance, in facilitating transport of carbon dioxide or
carbonic acid, or in sensing carbon dioxide levels in
the environment. Dioscorin is the major storage protein
of yam tubers and may play a role as an antioxidant.
Tobacco Nectarin may play a role in the maintenace of pH
and oxidative balance in nectar. Mollusc nacrein may
participate in calcium carbonate crystal formation of
the nacreous layer. This subfamily also includes three
alpha carbonic anhydrases from Chlamydomonas reinhardtii
(CAH 1-3). CAHs1-2 are localized in the periplasmic
space. CAH1 faciliates the movement of carbon dioxide
across the plasma membrane when the medium is alkaline.
CAH3 is localized to the thylakoid lumen and provides
CO2 to Rubisco.
Length = 216
Score = 86.2 bits (214), Expect = 7e-22
Identities = 46/128 (35%), Positives = 63/128 (49%), Gaps = 26/128 (20%)
Query: 5 ASGERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVDGEDSELT-G 63
A+G+ QSP+++ T V SDK PL + Y P + T+ N G+ +V+ +G LT
Sbjct: 16 ATGKNQSPIDITTKAVVSDKLP---PLNYNYKPT-SATLVNNGHTIQVNFEGNGGTLTID 71
Query: 64 GPLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQPDGL 123
G Y+L QFH H SEH ++GK Y E HLVH + D L
Sbjct: 72 G---ETYQLLQFHFH------SPSEHLINGKRYPLEAHLVHKSKDG------------QL 110
Query: 124 AVLGVLLE 131
AV+ VL E
Sbjct: 111 AVVAVLFE 118
>gnl|CDD|239403 cd03150, alpha_CA_IX, Carbonic anhydrase alpha, isozyme IX.
Carbonic anhydrases (CAs) are zinc-containing enzymes
that catalyze the reversible hydration of carbon dioxide
in a two-step mechanism: a nucleophilic attack of a
zinc-bound hydroxide ion on carbon dioxide, followed by
the regeneration of the active site by ionization of the
zinc-bound water molecule and removal of a proton from
the active site. They are ubiquitous enzymes involved in
fundamental processes like photosynthesis, respiration,
pH homeostasis and ion transport. There are three
evolutionary distinct groups - alpha, beta and gamma
carbonic anhydrases - which show no significant sequence
identity or structural similarity. Alpha CAs are
strictly monomeric enzymes. The zinc ion is complexed by
three histidine residues. This sub-family comprises the
membrane protein CA IX. CA IX is functionally implicated
in tumor growth and survival. CA IX is mainly present in
solid tumors and its expression in normal tissues is
limited to the mucosa of alimentary tract. CA IX is a
transmembrane protein with two extracellular domains:
carbonic anhydrase and, a proteoglycan-like segment
mediating cell-cell adhesion. There is evidence for an
involvement of the MAPK pathway in the regulation of CA9
expression.
Length = 247
Score = 86.5 bits (214), Expect = 8e-22
Identities = 44/133 (33%), Positives = 66/133 (49%), Gaps = 8/133 (6%)
Query: 2 FPEASGERQSPVNVDTTKVSSDKTLEEKPLT---WKYNPDKTKTITNPGYCWRVDVDGED 58
P +G QSPV++ V+ L +PL + P + + N G+ ++ +
Sbjct: 9 SPACAGRFQSPVDIRPHLVAFCPAL--RPLELLGFDLPPSPSLRLLNNGHTVQLSLP-SG 65
Query: 59 SELTGGPLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAG 118
+ GP +YR Q H HWG GSEHTVDG + E+H+VH ++ ++ EA G
Sbjct: 66 LRMALGP-GQEYRALQLHLHWGAAGRPGSEHTVDGHRFPAEIHVVHLST-AFANLDEALG 123
Query: 119 QPDGLAVLGVLLE 131
+P GLAVL L
Sbjct: 124 RPGGLAVLAAFLA 136
>gnl|CDD|239396 cd03122, alpha_CARP_receptor_like, Carbonic anhydrase alpha related
protein, receptor_like subfamily. Carbonic anhydrase
related proteins (CARPs) are sequence similar to
carbonic anhydrases. Carbonic anhydrases are
zinc-containing enzymes that catalyze the reversible
hydration of carbon dioxide in a two-step mechanism.
CARPs have lost conserved histidines involved in zinc
binding and consequently their catalytic activity. This
sub-family of carbonic anhydrase-related domains found
in tyrosine phosphatase receptors may play a role in
cell adhesion.
Length = 253
Score = 74.7 bits (184), Expect = 3e-17
Identities = 38/131 (29%), Positives = 68/131 (51%), Gaps = 9/131 (6%)
Query: 6 SGERQSPVNVDTTKVSSDKTLEE-KPLTWKYNPDKTK--TITNPGYC--WRVDVDGEDSE 60
G +QSP+++ + + +PL + + T T+ N G R++ + D
Sbjct: 14 EGRQQSPIDIV---EDTQVQRQGLQPLHFDGYEELTASTTLENTGKTVILRLEGNSSDPF 70
Query: 61 LTGGPLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQP 120
++GGPL +Y+ + HWG ++ GSEH++DG + E+ ++H N+D + +F EA P
Sbjct: 71 VSGGPLLGRYKFSEITFHWGTCNSDGSEHSIDGHKFPLEMQILHRNTDFFDSF-EAIKSP 129
Query: 121 DGLAVLGVLLE 131
G+ L L E
Sbjct: 130 GGVLALAYLFE 140
>gnl|CDD|225875 COG3338, Cah, Carbonic anhydrase [Inorganic ion transport and
metabolism].
Length = 250
Score = 64.8 bits (158), Expect = 1e-13
Identities = 41/127 (32%), Positives = 57/127 (44%), Gaps = 25/127 (19%)
Query: 5 ASGERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVDGEDSELTGG 64
A G+ QSP++++ DK PL Y P TI N G+ +V+ + + L
Sbjct: 50 AEGKNQSPIDIEHAVDVQDKP----PLQLNYQP-SAVTIKNNGHTIQVNFEPGSNHLRYD 104
Query: 65 PLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSDKYSTFGEAAGQPDGLA 124
Y+L QFH H SEH VDGK++ E H VH ++ LA
Sbjct: 105 --GKTYQLVQFHFH------APSEHLVDGKSFPMEAHFVHKDAK------------GTLA 144
Query: 125 VLGVLLE 131
VL VLL+
Sbjct: 145 VLAVLLQ 151
>gnl|CDD|177835 PLN02179, PLN02179, carbonic anhydrase.
Length = 235
Score = 45.7 bits (108), Expect = 8e-07
Identities = 29/100 (29%), Positives = 52/100 (52%), Gaps = 12/100 (12%)
Query: 5 ASGERQSPVNVDTTKVSSDKTLEEKPLTWKYNPDKTKTITNPGYCWRVDVDGEDSELTGG 64
++G+ QSP+++ +VS + ++ L+ Y P I + G+ V G+ ++T
Sbjct: 61 STGKYQSPIDLTDERVS---LIHDQALSRHYKP-APAVIQSRGHDVMVSWKGDAGKIT-- 114
Query: 65 PLHHKYRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVH 104
H+ + CHW + SEHT++G +Y ELH+VH
Sbjct: 115 --IHQTDYKLVQCHW----HSPSEHTINGTSYDLELHMVH 148
>gnl|CDD|241541 cd13390, PH_LARG, Leukemia-associated Rho guanine nucleotide
exchange factor Pleckstrin homology (PH) domain. LARG
(also called RhoGEF12) belongs to regulator of
G-protein signaling (RGS) domain-containing RhoGEFs
that are RhoA-selective and directly activated by the
Galpha12/13 family of heterotrimeric G proteins.
RhoGEFs activate Rho GTPases regulating cytoskeletal
structure, gene transcription, and cell migration. LARG
contains a N-terminal extension, followed by Dbl
homology (DH)-PH domains which bind and catalyze the
exchange of GDP for GTP on RhoA in addition to a RGS
domain. The active site of RhoA adopts two distinct
GDP-excluding conformations among the four unique
complexes in the asymmetric unit. The LARG PH domain
also contains a potential protein-docking site. LARG
forms a homotetramer via its DH domains. PH domains
have diverse functions, but in general are involved in
targeting proteins to the appropriate cellular location
or in the interaction with a binding partner. They
share little sequence conservation, but all have a
common fold, which is electrostatically polarized. Less
than 10% of PH domains bind phosphoinositide phosphates
(PIPs) with high affinity and specificity. PH domains
are distinguished from other PIP-binding domains by
their specific high-affinity binding to PIPs with two
vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2
or PtdIns(3,4,5)P3 which results in targeting some PH
domain proteins to the plasma membrane. A few display
strong specificity in lipid binding. Any specificity is
usually determined by loop regions or insertions in the
N-terminus of the domain, which are not conserved
across all PH domains. PH domains are found in cellular
signaling proteins such as serine/threonine kinase,
tyrosine kinases, regulators of G-proteins, endocytotic
GTPases, adaptors, as well as cytoskeletal associated
molecules and in lipid associated enzymes.
Length = 149
Score = 32.6 bits (74), Expect = 0.025
Identities = 15/27 (55%), Positives = 17/27 (62%), Gaps = 3/27 (11%)
Query: 14 NVDTTKVSSDKTLEEKPLTWKYNPDKT 40
N+D TK K + E PLTWK N DKT
Sbjct: 23 NLDLTK---RKMIHEGPLTWKVNKDKT 46
>gnl|CDD|177853 PLN02202, PLN02202, carbonate dehydratase.
Length = 284
Score = 31.2 bits (70), Expect = 0.12
Identities = 17/39 (43%), Positives = 19/39 (48%), Gaps = 6/39 (15%)
Query: 70 YRLEQFHCHWGCVSNKGSEHTVDGKAYAGELHLVHWNSD 108
Y L Q H H SEH + G YA ELH+VH D
Sbjct: 113 YTLLQMHWH------TPSEHHLHGVQYAAELHMVHQAKD 145
>gnl|CDD|237862 PRK14948, PRK14948, DNA polymerase III subunits gamma and tau;
Provisional.
Length = 620
Score = 27.6 bits (62), Expect = 2.3
Identities = 7/7 (100%), Positives = 7/7 (100%)
Query: 65 PLHHKYR 71
PLHHKYR
Sbjct: 5 PLHHKYR 11
>gnl|CDD|232818 TIGR00083, ribF, riboflavin kinase/FMN adenylyltransferase.
multifunctional enzyme: riboflavin kinase (EC 2.7.1.26)
(flavokinase) / FMN adenylyltransferase (EC 2.7.7.2)
(FAD pyrophosphorylase) (FAD synthetase) [Biosynthesis
of cofactors, prosthetic groups, and carriers,
Riboflavin, FMN, and FAD].
Length = 288
Score = 27.0 bits (60), Expect = 2.7
Identities = 9/29 (31%), Positives = 16/29 (55%)
Query: 82 VSNKGSEHTVDGKAYAGELHLVHWNSDKY 110
V N G+ T G+ E+HL+ ++ + Y
Sbjct: 220 VGNIGNRPTFIGQQLVIEVHLLDFSGELY 248
>gnl|CDD|235536 PRK05627, PRK05627, bifunctional riboflavin kinase/FMN
adenylyltransferase; Reviewed.
Length = 305
Score = 26.6 bits (60), Expect = 3.8
Identities = 13/32 (40%), Positives = 19/32 (59%)
Query: 79 WGCVSNKGSEHTVDGKAYAGELHLVHWNSDKY 110
+ V+N G+ TVDG E+HL+ +N D Y
Sbjct: 233 YPGVANIGTRPTVDGGRQLLEVHLLDFNGDLY 264
>gnl|CDD|165812 PLN02166, PLN02166, dTDP-glucose 4,6-dehydratase.
Length = 436
Score = 26.9 bits (59), Expect = 3.8
Identities = 27/83 (32%), Positives = 34/83 (40%), Gaps = 14/83 (16%)
Query: 30 PLTWKYNPDKT------KTITNPGYCWRVDVD---GEDSELTGGPLHHKYRLEQFHCHWG 80
P+ +KYNP KT T+ G RV SE+ G PL H Q +WG
Sbjct: 197 PVHYKYNPVKTIKTNVMGTLNMLGLAKRVGARFLLTSTSEVYGDPLEHP----QKETYWG 252
Query: 81 CVSNKGSEHTVD-GKAYAGELHL 102
V+ G D GK A L +
Sbjct: 253 NVNPIGERSCYDEGKRTAETLAM 275
>gnl|CDD|237054 PRK12316, PRK12316, peptide synthase; Provisional.
Length = 5163
Score = 26.8 bits (59), Expect = 4.3
Identities = 8/16 (50%), Positives = 12/16 (75%), Gaps = 1/16 (6%)
Query: 90 TVDGKAYAGELHLVHW 105
+++G+ Y GEL L HW
Sbjct: 1476 SIEGQVYGGELSL-HW 1490
>gnl|CDD|184029 PRK13399, PRK13399, fructose-1,6-bisphosphate aldolase;
Provisional.
Length = 347
Score = 26.7 bits (59), Expect = 4.6
Identities = 14/43 (32%), Positives = 21/43 (48%), Gaps = 3/43 (6%)
Query: 18 TKVSSDKTLEE---KPLTWKYNPDKTKTITNPGYCWRVDVDGE 57
T V D +L P ++ YN D T+ +T + V V+GE
Sbjct: 100 TSVMMDGSLLADGKTPASYDYNVDVTRRVTEMAHAVGVSVEGE 142
>gnl|CDD|241542 cd13391, PH_PRG, PDZ Rho guanine nucleotide exchange factor
Pleckstrin homology (PH) domain. PRG (also called
RhoGEF11) belongs to regulator of G-protein signaling
(RGS) domain-containing RhoGEFs that are RhoA-selective
and directly activated by the Galpha12/13 family of
heterotrimeric G proteins. RhoGEFs activate Rho GTPases
regulating cytoskeletal structure, gene transcription,
and cell migration. PRG contains an N-terminal PDZ
domain, a regulators of G-protein signaling-like (RGSL)
domain, a linker region, and a C-terminal Dbl-homology
(DH) and pleckstrin-homology (PH) domains which bind
and catalyze the exchange of GDP for GTP on RhoA. As is
the case in p115-RhoGEF, it is thought that the PRG
activated by relieving autoinhibition caused by the
linker region. PH domains have diverse functions, but
in general are involved in targeting proteins to the
appropriate cellular location or in the interaction
with a binding partner. They share little sequence
conservation, but all have a common fold, which is
electrostatically polarized. Less than 10% of PH
domains bind phosphoinositide phosphates (PIPs) with
high affinity and specificity. PH domains are
distinguished from other PIP-binding domains by their
specific high-affinity binding to PIPs with two vicinal
phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or
PtdIns(3,4,5)P3 which results in targeting some PH
domain proteins to the plasma membrane. A few display
strong specificity in lipid binding. Any specificity is
usually determined by loop regions or insertions in the
N-terminus of the domain, which are not conserved
across all PH domains. PH domains are found in cellular
signaling proteins such as serine/threonine kinase,
tyrosine kinases, regulators of G-proteins, endocytotic
GTPases, adaptors, as well as cytoskeletal associated
molecules and in lipid associated enzymes.
Length = 142
Score = 25.8 bits (56), Expect = 5.3
Identities = 8/21 (38%), Positives = 15/21 (71%)
Query: 20 VSSDKTLEEKPLTWKYNPDKT 40
+++ + + E PLTW+ + DKT
Sbjct: 23 LTTRRMIHEGPLTWRVSKDKT 43
>gnl|CDD|234515 TIGR04234, seadorna_RNAP, seadornavirus RNA-directed RNA
polymerase. Members of this protein family are the
seadornavirus VP1 protein, the RNA-directed RNA
polymerase.
Length = 1144
Score = 25.9 bits (57), Expect = 7.5
Identities = 12/73 (16%), Positives = 17/73 (23%), Gaps = 1/73 (1%)
Query: 44 TNPGYCWRVDVDGEDSELTGGPLHHKYRLEQFHCHWGCVSNKGSEHTVDG-KAYAGELHL 102
+ + V + SE L E F + V K E
Sbjct: 866 NSGTTQFESQVRKQLSEELNDNLVSPVWSEHFKRKNDYDVDDVGIEMVTKLKKLMPEGCR 925
Query: 103 VHWNSDKYSTFGE 115
+ ST E
Sbjct: 926 EYLVERVISTLKE 938
>gnl|CDD|188554 TIGR04039, MXAN_0977_Heme2, di-heme enzyme, MXAN_0977 family. This
model describes a subfamily of di-heme proteins related
to the di-heme cytochrome c peroxidase and to MauG
(methylamine utilization G), an enzyme that performs a
tryptophan tryptophylquinone modification to the
methylamine dehydrogenase light chain.
Length = 336
Score = 25.8 bits (57), Expect = 9.2
Identities = 14/31 (45%), Positives = 15/31 (48%), Gaps = 5/31 (16%)
Query: 55 DGEDSELT-----GGPLHHKYRLEQFHCHWG 80
G DS L+ G L RLE FHCH G
Sbjct: 162 RGNDSALSEQAKRGLALFFSERLECFHCHGG 192
>gnl|CDD|238114 cd00191, TY, Thyroglobulin type I repeats.; The N-terminal region
of human thyroglobulin contains 11 type-1 repeats TY
repeats are proposed to be inhibitors of cysteine
proteases.
Length = 66
Score = 24.3 bits (53), Expect = 9.5
Identities = 12/24 (50%), Positives = 14/24 (58%), Gaps = 3/24 (12%)
Query: 47 GYCWRVDVDGE---DSELTGGPLH 67
GYCW VD DGE + GGP +
Sbjct: 42 GYCWCVDPDGEEIPGTRTRGGPPN 65
>gnl|CDD|215557 PLN03069, PLN03069, magnesiumprotoporphyrin-IX chelatase subunit H;
Provisional.
Length = 1220
Score = 25.9 bits (57), Expect = 9.5
Identities = 13/37 (35%), Positives = 20/37 (54%), Gaps = 2/37 (5%)
Query: 92 DGKAYAGELHLVHWNSDKYSTFGEAAGQPDGLAVLGV 128
+G Y + LV W +D T+GE+ Q L ++GV
Sbjct: 965 NGGKYPETIALVLWGTDNIKTYGESLAQV--LWMVGV 999
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
0.313 0.133 0.425
Gapped
Lambda K H
0.267 0.0684 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 6,489,858
Number of extensions: 529974
Number of successful extensions: 306
Number of sequences better than 10.0: 1
Number of HSP's gapped: 274
Number of HSP's successfully gapped: 38
Length of query: 131
Length of database: 10,937,602
Length adjustment: 86
Effective length of query: 45
Effective length of database: 7,123,158
Effective search space: 320542110
Effective search space used: 320542110
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.2 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 42 (21.9 bits)
S2: 53 (24.3 bits)