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1A3C
Biol. Unit 1
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Asym.Unit (40 KB)
Biol.Unit 1 (68 KB)
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(1)
Title
:
PYRR, THE BACILLUS SUBTILIS PYRIMIDINE BIOSYNTHETIC OPERON REPRESSOR, DIMERIC FORM
Authors
:
D. R. Tomchick, R. J. Turner, R. W. Switzer, J. L. Smith
Date
:
20 Jan 98 (Deposition) - 05 Aug 98 (Release) - 16 Nov 11 (Revision)
Method
:
X-RAY DIFFRACTION
Resolution
:
1.60
Chains
:
Asym. Unit : A
Biol. Unit 1: A (2x)
Keywords
:
Transcription Regulation, Attenuation Protein, Rna-Binding Protein, Pyrimidine Biosynthesis, Transferase, Prtase, Phosphoribosyltransferase, Bifunctional Enzyme
(Keyword Search:
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Gene Ontology, PubMed, Web (Google)
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Reference
:
D. R. Tomchick, R. J. Turner, R. L. Switzer, J. L. Smith
Adaptation Of An Enzyme To Regulatory Function: Structure O Bacillus Subtilis Pyrr, A Pyr Rna-Binding Attenuation Protein And Uracil Phosphoribosyltransferase.
Structure V. 6 337 1998
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Hetero Components
(1, 2)
Info
All Hetero Components
1a: SAMARIUM (III) ION (SMa)
1b: SAMARIUM (III) ION (SMb)
2a: SULFATE ION (SO4a)
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No.
Name
Count
Type
Full Name
1
SM
-1
Ligand/Ion
SAMARIUM (III) ION
2
SO4
2
Ligand/Ion
SULFATE ION
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Sites
(6, 6)
Info
All Sites
1: AC1 (SOFTWARE)
2: AC2 (SOFTWARE)
3: AC3 (SOFTWARE)
4: PRA (UNKNOWN)
5: SM1 (UNKNOWN)
6: SM2 (UNKNOWN)
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No.
Name
Evidence
Residues
Description
1
AC1
SOFTWARE
GLU A:10 , ASP A:167 , ASP A:173
BINDING SITE FOR RESIDUE SM A 182
2
AC2
SOFTWARE
HOH A:325 , HOH A:335
BINDING SITE FOR RESIDUE SM A 183
3
AC3
SOFTWARE
LYS A:40 , ASP A:105 , VAL A:107 , LEU A:108 , TYR A:109 , THR A:110 , GLY A:111 , ARG A:112 , THR A:113 , VAL A:114 , HOH A:261
BINDING SITE FOR RESIDUE SO4 A 184
4
PRA
UNKNOWN
ASP A:105 , ASP A:106 , VAL A:107 , LEU A:108 , TYR A:109 , THR A:110 , GLY A:111 , ARG A:112 , THR A:113 , LYS A:40
DUAL SITE: BINDING SITE FOR SUBSTRATE PRPP IN THIS AND OTHER MEMBERS OF THE TYPE I PHOSPHORIBOSYLTRANSFERASE (PRTASE) FAMILY OF ENZYMES, AND SULFATE ION BINDING SITE.
5
SM1
UNKNOWN
SM A:182 , GLU A:10 , ASP A:167 , ASP A:173
SM3+ ION BINDING SITE. THE SM3+ ION LIES ON A CRYSTALLOGRAPHIC TWO-FOLD AXIS, AND ISOCTAHEDRALLY COORDINATED BY THE OXYGENS OF THREE AMINO ACID SIDE CHAINS AND THEIR SYMMETRY RELATED ATOMS.
6
SM2
UNKNOWN
SM A:183
SM3+ ION BINDING SITE. THE SM3+ ION LIES ON A GENERAL POSITION AND IS COORDINATED BY WATERS.
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SAPs(SNPs)/Variants
(0, 0)
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(mutated residues are only available for the asymmetric unit)
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PROSITE Patterns/Profiles
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Exons
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SCOP Domains
(1, 1)
Info
All SCOP Domains
1a: SCOP_d1a3ca_ (A:)
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Protein Domains
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Organisms
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(
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Class
:
Alpha and beta proteins (a/b)
(23833)
Fold
:
PRTase-like
(145)
Superfamily
:
PRTase-like
(145)
Family
:
Phosphoribosyltransferases (PRTases)
(100)
Protein domain
:
Pyrimidine operon regulator PyrR
(8)
Bacillus subtilis [TaxId: 1423]
(2)
1a
d1a3ca_
A:
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CATH Domains
(1, 1)
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all CATH domains
1a: CATH_1a3cA00 (A:3-180)
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Class
:
Alpha Beta
(26913)
Architecture
:
3-Layer(aba) Sandwich
(12045)
Topology
:
Rossmann fold
(7312)
Homologous Superfamily
:
[code=3.40.50.2020, no name defined]
(117)
Bacillus subtilis. Organism_taxid: 1423.
(8)
1a
1a3cA00
A:3-180
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Pfam Domains
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