2W3B - JenaLib

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Biological Unit 2 (Jmol Viewer)

Title :   HUMAN DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND A LIPOPHILIC ANTIFOLATE SELECTIVE FOR MYCOBACTERIUM AVIUM DHFR, 6-((2,5-DIETHOXYPHENYL)AMINOMETHYL)-2,4-DIAMINO-5-METHYLPYRIDO(2,3-D)PYRIMIDINE (SRI-8686)

Authors :   A. K. W. Leung, R. C. Reynolds, D. W. Borhani

Date :   11 Nov 08 (Deposition) - 17 Nov 09 (Release) - 17 Nov 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.27

Chains :   Asym. Unit : A,B
Biol. Unit 1: A  (1x)
Biol. Unit 2: B  (1x)

Keywords :   Nonclassical Antifolates, One-Carbon Metabolism, Lipophilic Antifolates, Nadp, Reductase, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   A. K. W. Leung, L. J. Ross, S. Zywno-Van Ginkel, R. C. Reynolds, L. E. Seitz, V. Pathak, W. W. Barrow, E. L. White, W. J. Suling, J. R. Piper, D. W. Borhani
Structural Basis For Selective Inhibition Of Mycobacterium Avium Dihydrofolate Reductase By A Lipophilic Antifolate
To Be Published
PubMed: search

Molecule 1 - DIHYDROFOLATE REDUCTASE
	Chains	:	A, B
	EC Number	:	1.5.1.3
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PDFR
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Vector	:	PET11A
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (1x)	:	A
Biological Unit 2 (1x)	:		B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (4, 8)

No.	Name	Count	Type	Full Name
1	FOL	2	Ligand/Ion	FOLIC ACID
2	K	2	Ligand/Ion	POTASSIUM ION
3	NDP	2	Ligand/Ion	NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
4	VG9	2	Ligand/Ion	6-{[(2,5-DIETHOXYPHENYL)AMINO]METHYL}-5-METHYLPYRIDO[2,3-D]PYRIMIDINE-2,4-DIAMINE

Biological Unit 1 (3, 3)

No.	Name	Count	Type	Full Name
1	FOL	1	Ligand/Ion	FOLIC ACID
2	K	-1	Ligand/Ion	POTASSIUM ION
3	NDP	1	Ligand/Ion	NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
4	VG9	1	Ligand/Ion	6-{[(2,5-DIETHOXYPHENYL)AMINO]METHYL}-5-METHYLPYRIDO[2,3-D]PYRIMIDINE-2,4-DIAMINE

Biological Unit 2 (3, 3)

No.	Name	Count	Type	Full Name
1	FOL	1	Ligand/Ion	FOLIC ACID
2	K	-1	Ligand/Ion	POTASSIUM ION
3	NDP	1	Ligand/Ion	NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
4	VG9	1	Ligand/Ion	6-{[(2,5-DIETHOXYPHENYL)AMINO]METHYL}-5-METHYLPYRIDO[2,3-D]PYRIMIDINE-2,4-DIAMINE

Asymmetric Unit (8, 8)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	VAL A:8 , ALA A:9 , ILE A:16 , GLY A:17 , LYS A:18 , GLY A:20 , ASP A:21 , LEU A:22 , GLY A:53 , LYS A:54 , LYS A:55 , THR A:56 , LEU A:75 , SER A:76 , ARG A:77 , GLU A:78 , ARG A:91 , VAL A:115 , GLY A:117 , SER A:118 , SER A:119 , VAL A:120 , TYR A:121 , THR A:146 , VG9 A:301 , FOL A:401 , HOH A:2134 , HOH A:2209 , HOH A:2234 , HOH A:2300 , HOH A:2302 , HOH A:2303 , HOH A:2304 , HOH A:2305 , HOH A:2306	BINDING SITE FOR RESIDUE NDP A 201
2	AC2	SOFTWARE	ILE A:7 , VAL A:8 , ALA A:9 , ASP A:21 , LEU A:22 , GLU A:30 , PHE A:31 , PHE A:34 , GLN A:35 , SER A:59 , PRO A:61 , ASN A:64 , VAL A:115 , TYR A:121 , NDP A:201 , HOH A:2305	BINDING SITE FOR RESIDUE VG9 A 301
3	AC3	SOFTWARE	ILE A:7 , VAL A:8 , ALA A:9 , GLU A:30 , PHE A:31 , ARG A:32 , PHE A:34 , GLN A:35 , ILE A:60 , ASN A:64 , LEU A:67 , ARG A:70 , VAL A:115 , THR A:136 , NDP A:201 , HOH A:2305 , HOH A:2308 , HOH A:2309 , HOH A:2310	BINDING SITE FOR RESIDUE FOL A 401
4	AC4	SOFTWARE	SER A:41 , VAL A:43 , LYS A:46 , HOH A:2111	BINDING SITE FOR RESIDUE K A 501
5	AC5	SOFTWARE	VAL B:8 , ALA B:9 , ILE B:16 , GLY B:17 , ASP B:21 , LEU B:22 , GLY B:53 , LYS B:54 , LYS B:55 , THR B:56 , SER B:59 , LEU B:75 , SER B:76 , ARG B:77 , GLU B:78 , ARG B:91 , VAL B:115 , GLY B:117 , SER B:118 , SER B:119 , VAL B:120 , TYR B:121 , THR B:146 , VG9 B:301 , FOL B:401 , HOH B:2159 , HOH B:2186 , HOH B:2264 , HOH B:2265 , HOH B:2266	BINDING SITE FOR RESIDUE NDP B 201
6	AC6	SOFTWARE	ILE B:7 , VAL B:8 , ALA B:9 , GLU B:30 , PHE B:31 , PHE B:34 , PRO B:61 , LEU B:67 , ARG B:70 , VAL B:115 , TYR B:121 , NDP B:201 , HOH B:2012 , HOH B:2038 , HOH B:2264 , HOH B:2267	BINDING SITE FOR RESIDUE VG9 B 301
7	AC7	SOFTWARE	ILE B:7 , VAL B:8 , ALA B:9 , GLU B:30 , PHE B:31 , ARG B:32 , PHE B:34 , GLN B:35 , ILE B:60 , ASN B:64 , LEU B:67 , ARG B:70 , VAL B:115 , THR B:136 , NDP B:201 , HOH B:2047 , HOH B:2264 , HOH B:2268	BINDING SITE FOR RESIDUE FOL B 401
8	AC8	SOFTWARE	SER B:41 , VAL B:43 , LYS B:46 , HOH B:2078 , HOH B:2089	BINDING SITE FOR RESIDUE K B 501

(no "SS Bond" information available for 2W3B)

Asymmetric Unit

No.	Residues
1	Arg A:65	-	Pro A:66
2	Leu A:79	-	Lys A:80
3	Gly A:116	-	Gly A:117
4	Arg B:65	-	Pro B:66
5	Gly B:116	-	Gly B:117

Asymmetric Unit (2, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_065818	L	80	F	DYR_HUMAN	Disease (DHFRD)	387906619	A/B	L	79	F
2	UniProt	VAR_065819	D	153	V	DYR_HUMAN	Disease (DHFRD)	121913223	A/B	D	152	V

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 1 (2, 2)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_065818	L	80	F	DYR_HUMAN	Disease (DHFRD)	387906619	A	L	79	F
2	UniProt	VAR_065819	D	153	V	DYR_HUMAN	Disease (DHFRD)	121913223	A	D	152	V

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 2 (2, 2)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_065818	L	80	F	DYR_HUMAN	Disease (DHFRD)	387906619	B	L	79	F
2	UniProt	VAR_065819	D	153	V	DYR_HUMAN	Disease (DHFRD)	121913223	B	D	152	V

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Asymmetric Unit (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	DHFR_2	PS51330	Dihydrofolate reductase (DHFR) domain profile.	DYR_HUMAN	4-185	2	A:3-184 B:3-184
2	DHFR_1	PS00075	Dihydrofolate reductase (DHFR) domain signature.	DYR_HUMAN	16-39	2	A:15-38 B:15-38

Biological Unit 1 (2, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	DHFR_2	PS51330	Dihydrofolate reductase (DHFR) domain profile.	DYR_HUMAN	4-185	1	A:3-184 -
2	DHFR_1	PS00075	Dihydrofolate reductase (DHFR) domain signature.	DYR_HUMAN	16-39	1	A:15-38 -

Biological Unit 2 (2, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	DHFR_2	PS51330	Dihydrofolate reductase (DHFR) domain profile.	DYR_HUMAN	4-185	1	- B:3-184
2	DHFR_1	PS00075	Dihydrofolate reductase (DHFR) domain signature.	DYR_HUMAN	16-39	1	- B:15-38

(no "Exon" information available for 2W3B)

Asymmetric Unit

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	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
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Chain A from PDB  Type:PROTEIN  Length:185
 aligned with DYR_HUMAN | P00374 from UniProtKB/Swiss-Prot  Length:187

    Alignment length:185
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181     
            DYR_HUMAN     2 VGSLNCIVAVSQNMGIGKNGDLPWPPLRNEFRYFQRMTTTSSVEGKQNLVIMGKKTWFSIPEKNRPLKGRINLVLSRELKEPPQGAHFLSRSLDDALKLTEQPELANKVDMVWIVGGSSVYKEAMNHPGHLKLFVTRIMQDFESDTFFPEIDLEKYKLLPEYPGVLSDVQEEKGIKYKFEVYEKN 186
               SCOP domains d2w3ba_ A: Dihydrofolate reductases, eukaryotic type                                                                                                                                      SCOP domains
               CATH domains 2w3bA00 A:1-185 Dihydrofolate Reductase, subunit A                                                                                                                                        CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeee....eee.........hhhhhhhhhhhhhh......eeeeeeehhhhhhhhhhhh.....eeeee............eee.hhhhhhhhh........eeeeee..hhhhhhhhhh...eeeeeeeee.......ee.........ee................eeeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------F------------------------------------------------------------------------V--------------------------------- SAPs(SNPs)
                PROSITE (1) --DHFR_2  PDB: A:3-184 UniProt: 4-185                                                                                                                                                   - PROSITE (1)
                PROSITE (2) --------------DHFR_1  PDB: A:15-38    --------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2w3b A   1 VGSLNCIVAVSQNMGIGKNGDLPWPPLRNEFRYFQRMTTTSSVEGKQNLVIMGKKTWFSIPEKNRPLKGRINLVLSRELKEPPQGAHFLSRSLDDALKLTEQPELANKVDMVWIVGGSSVYKEAMNHPGHLKLFVTRIMQDFESDTFFPEIDLEKYKLLPEYPGVLSDVQEEKGIKYKFEVYEKN 185
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180

Chain B from PDB  Type:PROTEIN  Length:186
 aligned with DYR_HUMAN | P00374 from UniProtKB/Swiss-Prot  Length:187

    Alignment length:186
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181      
            DYR_HUMAN     2 VGSLNCIVAVSQNMGIGKNGDLPWPPLRNEFRYFQRMTTTSSVEGKQNLVIMGKKTWFSIPEKNRPLKGRINLVLSRELKEPPQGAHFLSRSLDDALKLTEQPELANKVDMVWIVGGSSVYKEAMNHPGHLKLFVTRIMQDFESDTFFPEIDLEKYKLLPEYPGVLSDVQEEKGIKYKFEVYEKND 187
               SCOP domains d2w3bb_ B: Dihydrofolate reductases, eukaryotic type                                                                                                                                       SCOP domains
               CATH domains 2w3bB00 B:1-186 Dihydrofolate Reductase, subunit A                                                                                                                                         CATH domains
           Pfam domains (1) --DHFR_1-2w3bB01 B:3-184                                                                                                                                                                -- Pfam domains (1)
           Pfam domains (2) --DHFR_1-2w3bB02 B:3-184                                                                                                                                                                -- Pfam domains (2)
         Sec.struct. author ..eeeeeeeee...eee.........hhhhhhhhhhhhhh......eeeeeeehhhhhhhhhhhh....eeeeee............eee.hhhhhhhhh........eeeeee..hhhhhhhhhh...eeeeeeeee.......ee.........ee................eeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------F------------------------------------------------------------------------V---------------------------------- SAPs(SNPs)
                PROSITE (1) --DHFR_2  PDB: B:3-184 UniProt: 4-185                                                                                                                                                   -- PROSITE (1)
                PROSITE (2) --------------DHFR_1  PDB: B:15-38    ---------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2w3b B   1 VGSLNCIVAVSQNMGIGKNGDLPWPPLRNEFRYFQRMTTTSSVEGKQNLVIMGKKTWFSIPEKNRPLKGRINLVLSRELKEPPQGAHFLSRSLDDALKLTEQPELANKVDMVWIVGGSSVYKEAMNHPGHLKLFVTRIMQDFESDTFFPEIDLEKYKLLPEYPGVLSDVQEEKGIKYKFEVYEKND 186
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180

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	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Asymmetric Unit

Classes(

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Folds(

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Superfamilies( (-)

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Families(

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Protein Domains( (-)

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Organisms( (-)

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Class: Alpha and beta proteins (a/b) (23833)

Fold: Dihydrofolate reductase-like (332)

Superfamily: Dihydrofolate reductase-like (332)

Family: Dihydrofolate reductases (249)

Protein domain: Dihydrofolate reductases, eukaryotic type (120)

Human (Homo sapiens) [TaxId: 9606] (61)

1a	d2w3ba_	A:
1b	d2w3bb_	B:

Asymmetric Unit

Classes(

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Architectures( (-)

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Topologies( (-)

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Homologous Superfamilies( (-)

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Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Dihydrofolate Reductase, subunit A (200)

Homologous Superfamily: Dihydrofolate Reductase, subunit A (200)

Human (Homo sapiens) (39)

1a	2w3bA00	A:1-185
1b	2w3bB00	B:1-186

Asymmetric Unit

Clans(

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Families(

)

Organisms( (-)

)

Clan: DHFred (95)

Family: DHFR_1 (89)

Homo sapiens (Human) (20)

1a	DHFR_1-2w3bB01	B:3-184
1b	DHFR_1-2w3bB02	B:3-184

Asymmetric Unit(hide GO term definitions)

Chain A,B (DYR_HUMAN | P00374)

molecular function
	GO:0050661	NADP binding	Interacting selectively and non-covalently with nicotinamide-adenine dinucleotide phosphate, a coenzyme involved in many redox and biosynthetic reactions; binding may be to either the oxidized form, NADP+, or the reduced form, NADPH.
	GO:0070402	NADPH binding	Interacting selectively and non-covalently with the reduced form, NADPH, of nicotinamide-adenine dinucleotide phosphate, a coenzyme involved in many redox and biosynthetic reactions.
	GO:0003723	RNA binding	Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
	GO:0004146	dihydrofolate reductase activity	Catalysis of the reaction: 5,6,7,8-tetrahydrofolate + NADP+ = 7,8-dihydrofolate + NADPH + H+.
	GO:0008144	drug binding	Interacting selectively and non-covalently with a drug, any naturally occurring or synthetic substance, other than a nutrient, that, when administered or applied to an organism, affects the structure or functioning of the organism; in particular, any such substance used in the diagnosis, prevention, or treatment of disease.
	GO:0033560	folate reductase activity	Catalysis of the reaction: 7,8-dihydrofolate + NADP+ = folate + NADPH + H+.
	GO:0005542	folic acid binding	Interacting selectively and non-covalently with folic acid, pteroylglutamic acid. Folic acid is widely distributed as a member of the vitamin B complex and is essential for the synthesis of purine and pyrimidines.
	GO:0003729	mRNA binding	Interacting selectively and non-covalently with messenger RNA (mRNA), an intermediate molecule between DNA and protein. mRNA includes UTR and coding sequences, but does not contain introns.
	GO:0051870	methotrexate binding	Interacting selectively and non-covalently with methotrexate, an antineoplastic antimetabolite with immunosuppressant properties. It is an inhibitor of tetrahydrofolate reductase and prevents the formation of tetrahydrofolate, necessary for synthesis of thymidylate, an essential component of DNA.
	GO:0016491	oxidoreductase activity	Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
	GO:0000082	G1/S transition of mitotic cell cycle	The mitotic cell cycle transition by which a cell in G1 commits to S phase. The process begins with the build up of G1 cyclin-dependent kinase (G1 CDK), resulting in the activation of transcription of G1 cyclins. The process ends with the positive feedback of the G1 cyclins on the G1 CDK which commits the cell to S phase, in which DNA replication is initiated.
	GO:0031103	axon regeneration	The regrowth of axons following their loss or damage.
	GO:0046452	dihydrofolate metabolic process	The chemical reactions and pathways involving dihydrofolate, the dihydroxylated derivative of folate.
	GO:0046655	folic acid metabolic process	The chemical reactions and pathways involving folic acid, pteroylglutamic acid. Folic acid is widely distributed as a member of the vitamin B complex and is essential for the synthesis of purine and pyrimidines.
	GO:0006545	glycine biosynthetic process	The chemical reactions and pathways resulting in the formation of glycine, aminoethanoic acid.
	GO:0009165	nucleotide biosynthetic process	The chemical reactions and pathways resulting in the formation of nucleotides, any nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the glycose moiety; may be mono-, di- or triphosphate; this definition includes cyclic-nucleotides (nucleoside cyclic phosphates).
	GO:0006730	one-carbon metabolic process	The chemical reactions and pathways involving the transfer of one-carbon units in various oxidation states.
	GO:0055114	oxidation-reduction process	A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
	GO:0051000	positive regulation of nitric-oxide synthase activity	Any process that activates or increases the activity of the enzyme nitric-oxide synthase.
	GO:2000121	regulation of removal of superoxide radicals	Any process that modulates the frequency, rate or extent of removal of superoxide radicals.
	GO:0000083	regulation of transcription involved in G1/S transition of mitotic cell cycle	Any process that regulates transcription such that the target genes are involved in the transition between G1 and S phase of the mitotic cell cycle.
	GO:0031427	response to methotrexate	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a methotrexate stimulus. Methotrexate is 4-amino-10-methylformic acid, a folic acid analogue that is a potent competitive inhibitor of dihydrofolate reductase.
	GO:0006729	tetrahydrobiopterin biosynthetic process	The chemical reactions and pathways resulting in the formation of tetrahydrobiopterin, the reduced form of biopterin (2-amino-4-hydroxy-6-(1,2-dihydroxypropyl)-pteridine). It functions as a hydroxylation coenzyme, e.g. in the conversion of phenylalanine to tyrosine.
	GO:0046654	tetrahydrofolate biosynthetic process	The chemical reactions and pathways resulting in the formation of tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.
	GO:0046653	tetrahydrofolate metabolic process	The chemical reactions and pathways involving tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.
cellular component
	GO:0005575	cellular_component	The part of a cell, extracellular environment or virus in which a gene product is located. A gene product may be located in one or more parts of a cell and its location may be as specific as a particular macromolecular complex, that is, a stable, persistent association of macromolecules that function together.
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
	GO:0005654	nucleoplasm	That part of the nuclear content other than the chromosomes or the nucleolus.

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	Cis Peptide Bonds
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		Gly A:116 - Gly A:117	[ RasMol ]
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Access by UniProt ID/Accession number
	DYR_HUMAN \| P00374
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

1boz	STRUCTURE-BASED DESIGN AND SYNTHESIS OF LIPOPHILIC 2,4- DIAMINO-6-SUBSTITUTED QUINAZOLINES AND THEIR EVALUATION AS INHIBITORS OF DIHYDROFOLATE REDUCTASE AND POTENTIAL ANTITUMOR AGENTS
1dhf	DIHYDROFOLATE REDUCTASE (DHFR) COMPLEX WITH FOLATE
1dlr	DIHYDROFOLATE REDUCTASE (DHFR) MUTANT WITH LEU 22 REPLACED BY PHE (L22F) COMPLEXED WITH NADPH AND PIRITREXIM (PTX)
1dls	DIHYDROFOLATE REDUCTASE (DHFR) MUTANT WITH LEU 22 REPLACED BY TYR (L22Y) COMPLEXED WITH NADPH AND METHOTREXATE
1drf	DIHYDROFOLATE REDUCTASE COMPLEX WITH FOLATE
1hfp	COMPARISON OF TERNARY CRYSTAL COMPLEXES OF HUMAN DIHYDROFOLATE REDUCTASE WITH NADPH AND A CLASSICAL ANTITUMOR FUROPYRIMDINE
1hfq	COMPARISON OF TERNARY CRYSTAL COMPLEXES OF HUMAN DIHYDROFOLATE REDUCTASE WITH NADPH AND A CLASSICAL ANTITUMOR FUROPYRIMDINE
1hfr	COMPARISON OF TERNARY CRYSTAL COMPLEXES OF HUMAN DIHYDROFOLATE REDUCTASE WITH NADPH AND A CLASSICAL ANTITUMOR FUROPYRIMDINE
1kms	HUMAN DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND 6-([5-QUINOLYLAMINO]METHYL)-2,4 -DIAMINO-5-METHYLPYRIDO[2,3-D]PYRIMIDINE ( SRI-9439), A LIPOPHILIC ANTIFOLATE
1kmv	HUMAN DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND (Z)-6-(2-[2,5-DIMETHOXYPHENYL] ETHEN-1-YL)-2,4-DIAMINO-5-METHYLPYRIDO[2 ,3-D]PYRIMIDINE (SRI-9662), A LIPOPHILICANTIFOLATE
1mvs	ANALYSIS OF TWO POLYMORPHIC FORMS OF A PYRIDO[2,3-D]PYRIMIDINE N9-C10 REVERSE- BRIDGE ANTIFOLATE BINARYCOMPLEX WITH HUMAN DIHYDROFOLATE REDUCTASE
1mvt	ANALYSIS OF TWO POLYMORPHIC FORMS OF A PYRIDO[2,3-D]PYRIMIDINE N9-C10 REVERSE- BRIDGE ANTIFOLATE BINARYCOMPLEX WITH HUMAN DIHYDROFOLATE REDUCTASE
1ohj	HUMAN DIHYDROFOLATE REDUCTASE, MONOCLINIC (P21 ) CRYSTAL FORM
1ohk	HUMAN DIHYDROFOLATE REDUCTASE, ORTHORHOMBIC (P21 21 21) CRYSTAL FORM
1pd8	ANALYSIS OF THREE CRYSTAL STRUCTURE DETERMINATIONS OF A 5-METHYL-6-N- METHYLANILINO PYRIDOPYRIMIDINE ANTIFOLATECOMPLEX WITH HUMAN DIHYDROFOLATE REDUCTASE
1pd9	ANALYSIS OF THREE CRYSTAL STRUCTURE DETERMINATIONS OF A 5-METHYL-6-N- METHYLANILINO PYRIDOPYRIMIDINE ANTIFOLATECOMPLEX WITH HUMAN DIHYDROFOLATE REDUCTASE
1pdb	ANALYSIS OF THREE CRYSTAL STRUCTURE DETERMINATIONS OF A 5-METHYL-6-N- METHYLANILINO PYRIDOPYRIMIDINE ANTIFOLATECOMPLEX WITH HUMAN DIHYDROFOLATE REDUCTASE
1s3u	STRUCTURE DETERMINATION OF TETRAHYDROQUINAZOLINEANTIFOLATES IN COMPLEX WITH HUMAN AND PNEUMOCYSTIS CARINIIDIHYDROFOLATE REDUCTASE: CORRELATIONS OF ENZYMESELECTIVITY AND STEREOCHEMISTRY
1s3v	STRUCTURE DETERMINATION OF TETRAHYDROQUINAZOLINEANTIFOLATES IN COMPLEX WITH HUMAN AND PNEUMOCYSTIS CARINIIDIHYDROFOLATE REDUCTASE: CORRELATIONS OF ENZYMESELECTIVITY AND STEREOCHEMISTRY
1s3w	STRUCTURE DETERMINATION OF TETRAHYDROQUINAZOLINEANTIFOALTES IN COMPLEX WITH HUMAN AND PNEUMOCYSTIS CARINIIDIHYDROFOLATE REDUCTASE: CORRELATIONS OF ENZYMESELECTIVITY AND STEREOCHEMISTRY
1u71	UNDERSTANDING THE ROLE OF LEU22 VARIANTS IN METHOTREXATERESISTANCE: COMPARISON OF WILD- TYPE AND LEU22ARG VARIANTMOUSE AND HUMAN DIHYDROFOLATE REDUCTASE TERNARY CRYSTALCOMPLEXES WITH METHOTREXATE AND NADPH
1u72	UNDERSTANDING THE ROLE OF LEU22 VARIANTS IN METHOTREXATERESISTANCE: COMPARISON OF WILD- TYPE AND LEU22ARG VARIANTMOUSE AND HUMAN DIHYDRFOLATE REDUCTASE TERNARY CRYSTALCOMPLEXES WITH METHOTREXATE AND NADPH
1yho	SOLUTION STRUCTURE OF HUMAN DIHYDROFOLATE REDUCTASECOMPLEXED WITH TRIMETHOPRIM AND NADPH , 25 STRUCTURES
2c2s	HUMAN DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND 2,4-DIAMINO-5-(1-O- CARBORANYLMETHYL)-6-METHYLPYRIMIDINE, A NOVEL BORON CONTANING, NONCLASSICAL ANTIFOLATE
2c2t	HUMAN DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND 2,4-DIAMINO-5-((7,8- DICARBAUNDECABORAN-7-YL)METHYL)-6- METHYLPYRIMIDINE, A NOVEL BORON CONTANING, NONCLASSICAL ANTIFOLATE
2dhf	DIHYDROFOLATE REDUCTASE (DHFR) COMPLEX WITH 5 -DEAZAFOLATE
2w3a	HUMAN DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND TRIMETHOPRIM
2w3m	HUMAN DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND FOLATE

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (4, 8)

Sites (8, 8)

SS Bonds (0, 0)

Cis Peptide Bonds (5, 5)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (2, 4)

PROSITE Motifs (2, 4)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 2)

CATH Domains (1, 2)

Pfam Domains (1, 2)

Gene Ontology (28, 28)

Visualization

Interactive Views

Still Images

Databases and Analysis Tools

Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File