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1Q8A
Asym. Unit
Info
Asym.Unit (187 KB)
Biol.Unit 1 (95 KB)
Biol.Unit 2 (92 KB)
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(1)
Title
:
COBALAMIN-DEPENDENT METHIONINE SYNTHASE (1-566) FROM THERMOTOGA MARITIMA (CD2+:L-HCY COMPLEX, SE-MET)
Authors
:
J. C. Evans, D. P. Huddler, M. T. Hilgers, G. Romanchuk, R. G. Matthews, M. L. Ludwig
Date
:
20 Aug 03 (Deposition) - 23 Mar 04 (Release) - 24 Feb 09 (Revision)
Method
:
X-RAY DIFFRACTION
Resolution
:
1.70
Chains
:
Asym. Unit : A,B
Biol. Unit 1: A (1x)
Biol. Unit 2: B (1x)
Keywords
:
Homocysteine, Methionine, Folate, Cobalamin, Vitamin B12, Transferase
(Keyword Search:
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Gene Ontology, PubMed, Web (Google)
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)
Reference
:
J. C. Evans, D. P. Huddler, M. T. Hilgers, G. Romanchuk, R. G. Matthews, M. L. Ludwig
Structures Of The N-Terminal Modules Imply Large Domain Motions During Catalysis By Methionine Synthase.
Proc. Natl. Acad. Sci. Usa V. 101 3729 2004
(for further references see the
PDB file header
)
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Hetero Components
(3, 24)
Info
All Hetero Components
1a: CADMIUM ION (CDa)
1b: CADMIUM ION (CDb)
2a: 2-AMINO-4-MERCAPTO-BUTYRIC ACID (HCSa)
2b: 2-AMINO-4-MERCAPTO-BUTYRIC ACID (HCSb)
3a: SELENOMETHIONINE (MSEa)
3b: SELENOMETHIONINE (MSEb)
3c: SELENOMETHIONINE (MSEc)
3d: SELENOMETHIONINE (MSEd)
3e: SELENOMETHIONINE (MSEe)
3f: SELENOMETHIONINE (MSEf)
3g: SELENOMETHIONINE (MSEg)
3h: SELENOMETHIONINE (MSEh)
3i: SELENOMETHIONINE (MSEi)
3j: SELENOMETHIONINE (MSEj)
3k: SELENOMETHIONINE (MSEk)
3l: SELENOMETHIONINE (MSEl)
3m: SELENOMETHIONINE (MSEm)
3n: SELENOMETHIONINE (MSEn)
3o: SELENOMETHIONINE (MSEo)
3p: SELENOMETHIONINE (MSEp)
3q: SELENOMETHIONINE (MSEq)
3r: SELENOMETHIONINE (MSEr)
3s: SELENOMETHIONINE (MSEs)
3t: SELENOMETHIONINE (MSEt)
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No.
Name
Count
Type
Full Name
1
CD
2
Ligand/Ion
CADMIUM ION
2
HCS
2
Ligand/Ion
2-AMINO-4-MERCAPTO-BUTYRIC ACID
3
MSE
20
Mod. Amino Acid
SELENOMETHIONINE
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Sites
(4, 4)
Info
All Sites
1: AC1 (SOFTWARE)
2: AC2 (SOFTWARE)
3: AC3 (SOFTWARE)
4: AC4 (SOFTWARE)
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No.
Name
Evidence
Residues
Description
1
AC1
SOFTWARE
CYS A:207 , CYS A:272 , CYS A:273 , HCS A:701
BINDING SITE FOR RESIDUE CD A 601
2
AC2
SOFTWARE
CYS B:207 , ASN B:234 , CYS B:272 , CYS B:273 , HCS B:702
BINDING SITE FOR RESIDUE CD B 602
3
AC3
SOFTWARE
ALA A:21 , TYR A:22 , GLY A:23 , ASP A:105 , GLU A:146 , THR A:147 , CD A:601 , HOH A:707 , HOH A:713 , HOH A:721 , HOH A:769
BINDING SITE FOR RESIDUE HCS A 701
4
AC4
SOFTWARE
ALA B:21 , TYR B:22 , GLY B:23 , PHE B:66 , ASP B:105 , GLU B:146 , THR B:147 , CD B:602 , HOH B:707 , HOH B:715 , HOH B:726
BINDING SITE FOR RESIDUE HCS B 702
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SAPs(SNPs)/Variants
(0, 0)
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Exons
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Exon boundaries colored in "red" are actually farther away from the residue due to missing residues in the structure.
SCOP Domains
(2, 4)
Info
All SCOP Domains
1a: SCOP_d1q8aa1 (A:301-559)
1b: SCOP_d1q8ab1 (B:301-558)
2a: SCOP_d1q8aa2 (A:1-300)
2b: SCOP_d1q8ab2 (B:1-300)
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Class
:
Alpha and beta proteins (a/b)
(23833)
Fold
:
TIM beta/alpha-barrel
(3956)
Superfamily
:
Dihydropteroate synthetase-like
(59)
Family
:
Methyltetrahydrofolate-utiluzing methyltransferases
(16)
Protein domain
:
Cobalamin-dependent methionine synthase MetH, C-terminal domain
(8)
Thermotoga maritima [TaxId: 2336]
(8)
1a
d1q8aa1
A:301-559
1b
d1q8ab1
B:301-558
Superfamily
:
Homocysteine S-methyltransferase
(11)
Family
:
Homocysteine S-methyltransferase
(11)
Protein domain
:
Cobalamin-dependent methionine synthase MetH, N-terminal domain
(8)
Thermotoga maritima [TaxId: 2336]
(8)
2a
d1q8aa2
A:1-300
2b
d1q8ab2
B:1-300
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CATH Domains
(2, 4)
Info
all CATH domains
1a: CATH_1q8aA01 (A:2-300)
1b: CATH_1q8aB01 (B:2-300)
2a: CATH_1q8aA02 (A:301-559)
2b: CATH_1q8aB02 (B:301-558)
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Class
:
Alpha Beta
(26913)
Architecture
:
Alpha-Beta Barrel
(2994)
Topology
:
TIM Barrel
(2806)
Homologous Superfamily
:
[code=3.20.20.330, no name defined]
(11)
Thermotoga maritima. Organism_taxid: 2336.
(8)
1a
1q8aA01
A:2-300
1b
1q8aB01
B:2-300
Homologous Superfamily
:
Dihydropteroate (DHP) synthetase
(30)
Thermotoga maritima. Organism_taxid: 2336.
(8)
2a
1q8aA02
A:301-559
2b
1q8aB02
B:301-558
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Pfam Domains
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Asymmetric Unit 1
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Asym.Unit (187 KB)
Header - Asym.Unit
Biol.Unit 1 (95 KB)
Header - Biol.Unit 1
Biol.Unit 2 (92 KB)
Header - Biol.Unit 2
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