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1QK5
Biol. Unit 1
Info
Asym.Unit (83 KB)
Biol.Unit 1 (150 KB)
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(1)
Title
:
TOXOPLASMA GONDII HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE WITH XMP, PYROPHOSPHATE AND TWO MG2+ IONS
Authors
:
A. Heroux, E. L. White, L. J. Ross, R. L. Davis, D. W. Borhani
Date
:
09 Jul 99 (Deposition) - 17 Oct 99 (Release) - 24 Feb 09 (Revision)
Method
:
X-RAY DIFFRACTION
Resolution
:
1.60
Chains
:
Asym. Unit : A,B
Biol. Unit 1: A,B (2x)
Keywords
:
Transferase, Glycosyltransferase, Purine Salvage
(Keyword Search:
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Gene Ontology, PubMed, Web (Google)
]
)
Reference
:
A. Heroux, E. L. White, L. J. Ross, R. L. Davis, D. W. Borhani
Crystal Structure Of Toxoplasma Gondii Hypoxanthine-Guanine Phosphoribosyltransferase With Xmp, Pyrophosphate And Two Mg2+ Ions Bound: Insights Into The Catalytic Mechanism
Biochemistry V. 38 14495 1999
(for further references see the
PDB file header
)
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Hetero Components
(2, 8)
Info
All Hetero Components
1a: MAGNESIUM ION (MGa)
1b: MAGNESIUM ION (MGb)
1c: MAGNESIUM ION (MGc)
1d: MAGNESIUM ION (MGd)
2a: PYROPHOSPHATE 2- (POPa)
2b: PYROPHOSPHATE 2- (POPb)
3a: XANTHOSINE-5'-MONOPHOSPHATE (XMPa)
3b: XANTHOSINE-5'-MONOPHOSPHATE (XMPb)
View:
Select:
Label:
No.
Name
Count
Type
Full Name
1
MG
-1
Ligand/Ion
MAGNESIUM ION
2
POP
4
Ligand/Ion
PYROPHOSPHATE 2-
3
XMP
4
Ligand/Ion
XANTHOSINE-5'-MONOPHOSPHATE
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Sites
(8, 8)
Info
All Sites
1: AC1 (SOFTWARE)
2: AC2 (SOFTWARE)
3: AC3 (SOFTWARE)
4: AC4 (SOFTWARE)
5: AC5 (SOFTWARE)
6: AC6 (SOFTWARE)
7: AC7 (SOFTWARE)
8: AC8 (SOFTWARE)
View:
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Label:
No.
Name
Evidence
Residues
Description
1
AC1
SOFTWARE
XMP A:300 , POP A:301 , HOH A:2062 , HOH A:2065 , HOH A:2099
BINDING SITE FOR RESIDUE MG A 302
2
AC2
SOFTWARE
ASP A:206 , POP A:301 , HOH A:2083 , HOH A:2084 , HOH A:2102
BINDING SITE FOR RESIDUE MG A 303
3
AC3
SOFTWARE
POP B:301 , HOH B:2049 , HOH B:2053 , HOH B:2054 , HOH B:2077
BINDING SITE FOR RESIDUE MG B 302
4
AC4
SOFTWARE
ASP B:206 , POP B:301 , HOH B:2063 , HOH B:2064 , HOH B:2078
BINDING SITE FOR RESIDUE MG B 303
5
AC5
SOFTWARE
ASP A:147 , ILE A:148 , ALA A:150 , THR A:151 , GLY A:152 , PHE A:153 , THR A:154 , LYS A:178 , TRP A:199 , ILE A:200 , TYR A:205 , ASP A:206 , POP A:301 , MG A:302 , HOH A:2097 , HOH A:2098 , HOH A:2099 , HOH A:2100 , HOH A:2102
BINDING SITE FOR RESIDUE XMP A 300
6
AC6
SOFTWARE
LYS A:79 , GLY A:80 , ARG A:114 , LYS A:116 , ASP A:206 , ARG A:212 , XMP A:300 , MG A:302 , MG A:303 , HOH A:2062 , HOH A:2065 , HOH A:2084 , HOH A:2086 , HOH A:2098 , HOH A:2101 , HOH A:2102
BINDING SITE FOR RESIDUE POP A 301
7
AC7
SOFTWARE
ASP B:147 , ILE B:148 , ALA B:150 , THR B:151 , GLY B:152 , PHE B:153 , THR B:154 , LYS B:178 , VAL B:198 , TRP B:199 , ILE B:200 , TYR B:205 , ASP B:206 , POP B:301 , HOH B:2076 , HOH B:2077 , HOH B:2078
BINDING SITE FOR RESIDUE XMP B 300
8
AC8
SOFTWARE
LYS B:79 , GLY B:80 , ARG B:114 , LYS B:116 , ASP B:206 , ARG B:212 , XMP B:300 , MG B:302 , MG B:303 , HOH B:2049 , HOH B:2053 , HOH B:2054 , HOH B:2063 , HOH B:2077 , HOH B:2079 , HOH B:2080
BINDING SITE FOR RESIDUE POP B 301
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SAPs(SNPs)/Variants
(0, 0)
Info
(mutated residues are only available for the asymmetric unit)
All SNPs/Variants
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PROSITE Patterns/Profiles
(1, 4)
Info
All PROSITE Patterns/Profiles
1: PUR_PYR_PR_TRANSFER (A:142-154,B:142-154)
;
View:
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End label:
PROSITE
UniProtKB
PDB
No.
ID
AC
Description
ID
Location
Count
Location
1
PUR_PYR_PR_TRANSFER
PS00103
Purine/pyrimidine phosphoribosyl transferases signature.
HGXR_TOXGO
142-154
4
A:142-154
B:142-154
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Exons
(0, 0)
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Note:
Exon boundaries colored in "red" are actually farther away from the residue due to missing residues in the structure.
(no "Exon" information available for biological units yet)
SCOP Domains
(1, 2)
Info
All SCOP Domains
1a: SCOP_d1qk5a_ (A:)
1b: SCOP_d1qk5b_ (B:)
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Protein Domains
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Organisms
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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
:
Hypoxanthine-guanine-xanthine PRTase
(7)
Toxoplasma gondii [TaxId: 5811]
(5)
1a
d1qk5a_
A:
1b
d1qk5b_
B:
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CATH Domains
(1, 2)
Info
all CATH domains
1a: CATH_1qk5A00 (A:1-230)
1b: CATH_1qk5B00 (B:1-230)
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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)
Toxoplasma gondii. Organism_taxid: 383379. Strain: rh.
(3)
1a
1qk5A00
A:1-230
1b
1qk5B00
B:1-230
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Pfam Domains
(1, 2)
Info
all PFAM domains
1a: PFAM_Pribosyltran_1qk5B01 (B:43-176)
1b: PFAM_Pribosyltran_1qk5B02 (B:43-176)
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Clan
:
PRTase-like
(59)
Family
:
Pribosyltran
(59)
Toxoplasma gondii
(2)
1a
Pribosyltran-1qk5B01
B:43-176
1b
Pribosyltran-1qk5B02
B:43-176
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Asym.Unit (83 KB)
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