Homology Modelling Report

Model Building Report

This document lists the results for the homology modelling project "BIOSC 1540 - Project" submitted to SWISS-MODEL workspace on Nov. 15, 2024, 9:23 p.m..The submitted primary amino acid sequence is given in Table T1.

If you use any results in your research, please cite the relevant publications:

Results

The SWISS-MODEL template library (SMTL version 2024-11-14, PDB release 2024-11-08) was searched with BLAST (Camacho et al.) and HHblits (Steinegger et al.) for evolutionary related structures matching the target sequence in Table T1. For details on the template search, see Materials and Methods. Overall 689 templates were found (Table T2).

Models

The following models were built (see Materials and Methods "Model Building"):

Model #01

File Built with Oligo-State Ligands GMQE QMEANDisCo Global
PDB ProMod3 3.4.1 monomer
1 x MMV: 3-(2-{3-[(2,4-diamino-6-ethylpyrimidin-5-yl)oxy]propoxy}phenyl)propanoic acid;
1 x NAP: NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE;
0.96 0.91 ± 0.07
Template Seq Identity Oligo-state QSQE Found by Method Resolution Seq Similarity Range Coverage Description
6e4e.1.A 100.00 monomer 0.00 HHblits X-ray 1.90Å 0.62 1 - 159 1.00 Dihydrofolate reductase

Included Ligands

Ligand Description
1 x MMV
3-(2-{3-[(2,4-diamino-6-ethylpyrimidin-5-yl)oxy]propoxy}phenyl)propanoic acid
1 x NAP
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE

Target    MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI
6e4e.1.A MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI

Target EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK
6e4e.1.A EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK




Model #05

File Built with Oligo-State Ligands GMQE QMEANDisCo Global
PDB ProMod3 3.4.1 monomer
1 x NDP: NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE;
1 x XCF: 5-[[(2R)-2-cyclopropyl-7,8-dimethoxy-2H-chromen-5-yl]methyl]pyrimidine-2,4-diamine;
0.95 0.91 ± 0.07
Template Seq Identity Oligo-state QSQE Found by Method Resolution Seq Similarity Range Coverage Description
3fyw.1.A 100.00 monomer 0.00 HHblits X-ray 2.10Å 0.62 2 - 159 0.99 Dihydrofolate reductase

Included Ligands

Ligand Description
1 x NDP
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
1 x XCF
5-[[(2R)-2-cyclopropyl-7,8-dimethoxy-2H-chromen-5-yl]methyl]pyrimidine-2,4-diamine

Target    MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI
3fyw.1.A -TLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI

Target EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK
3fyw.1.A EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK




Model #03

File Built with Oligo-State Ligands GMQE QMEANDisCo Global
PDB ProMod3 3.4.1 monomer
1 x NAP: NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE;
1 x OWS: (2E)-3-{5-[(2,4-diaminopyrimidin-5-yl)methyl]-2,3-dimethoxyphenyl}-1-[(1S)-1-(4-methylphenyl)phthalazin-2(1H)-yl]prop-2-en-1-one;
0.95 0.91 ± 0.07
Template Seq Identity Oligo-state QSQE Found by Method Resolution Seq Similarity Range Coverage Description
6pr6.1.A 100.00 monomer 0.00 HHblits X-ray 2.01Å 0.62 2 - 159 1.00 Dihydrofolate reductase

Included Ligands

Ligand Description
1 x NAP
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
1 x OWS
(2E)-3-{5-[(2,4-diaminopyrimidin-5-yl)methyl]-2,3-dimethoxyphenyl}-1-[(1S)-1-(4-methylphenyl)phthalazin-2(1H)-yl]prop-2-en-1-one

Excluded ligands

Ligand Name.Number Reason for Exclusion Description
GOL.3 Not biologically relevant.
GLYCEROL
GOL.4 Not biologically relevant.
GLYCEROL

Target    MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI
6pr6.1.A MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI

Target EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK
6pr6.1.A EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK




Model #06

File Built with Oligo-State Ligands GMQE QMEANDisCo Global
PDB ProMod3 3.4.1 monomer
1 x NAP: NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE;
1 x OWJ: (2E)-3-{5-[(2,4-diaminopyrimidin-5-yl)methyl]-2,3-dimethoxyphenyl}-1-[(1S)-1-(3,5-dimethylphenyl)phthalazin-2(1H)-yl]prop-2-en-1-one;
0.95 0.91 ± 0.07
Template Seq Identity Oligo-state QSQE Found by Method Resolution Seq Similarity Range Coverage Description
6pr8.1.A 100.00 monomer 0.00 HHblits X-ray 2.01Å 0.62 2 - 159 0.99 Dihydrofolate reductase

Included Ligands

Ligand Description
1 x NAP
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
1 x OWJ
(2E)-3-{5-[(2,4-diaminopyrimidin-5-yl)methyl]-2,3-dimethoxyphenyl}-1-[(1S)-1-(3,5-dimethylphenyl)phthalazin-2(1H)-yl]prop-2-en-1-one

Excluded ligands

Ligand Name.Number Reason for Exclusion Description
GOL.3 Not biologically relevant.
GLYCEROL
GOL.4 Not biologically relevant.
GLYCEROL

Target    MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI
6pr8.1.A -TLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI

Target EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK
6pr8.1.A EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK




Model #04

File Built with Oligo-State Ligands GMQE QMEANDisCo Global
PDB ProMod3 3.4.1 monomer
1 x NAP: NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE;
1 x Q11: 7-(2-methoxyphenyl)quinazoline-2,4-diamine;
0.95 0.91 ± 0.07
Template Seq Identity Oligo-state QSQE Found by Method Resolution Seq Similarity Range Coverage Description
3sqy.1.A 100.00 monomer 0.00 HHblits X-ray 1.50Å 0.62 2 - 158 1.00 Dihydrofolate reductase

Included Ligands

Ligand Description
1 x NAP
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
1 x Q11
7-(2-methoxyphenyl)quinazoline-2,4-diamine

Target    MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI
3sqy.1.A MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI

Target EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK
3sqy.1.A EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK




Model #07

File Built with Oligo-State Ligands GMQE QMEANDisCo Global
PDB ProMod3 3.4.1 monomer
1 x NAP: NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE;
1 x Q12: 7-(3,4-dimethoxyphenyl)-6-methylquinazoline-2,4-diamine;
0.95 0.91 ± 0.07
Template Seq Identity Oligo-state QSQE Found by Method Resolution Seq Similarity Range Coverage Description
3sr5.1.A 100.00 monomer 0.00 HHblits X-ray 1.68Å 0.62 2 - 158 0.99 Dihydrofolate reductase

Included Ligands

Ligand Description
1 x NAP
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
1 x Q12
7-(3,4-dimethoxyphenyl)-6-methylquinazoline-2,4-diamine

Target    MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI
3sr5.1.A -TLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI

Target EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK
3sr5.1.A EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK




Model #08

File Built with Oligo-State Ligands GMQE QMEANDisCo Global
PDB ProMod3 3.4.1 monomer
1 x NDP: NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE;
1 x TOP: TRIMETHOPRIM;
0.95 0.91 ± 0.07
Template Seq Identity Oligo-state QSQE Found by Method Resolution Seq Similarity Range Coverage Description
2w9g.1.A 100.00 monomer 0.00 HHblits X-ray 1.95Å 0.62 2 - 158 1.00 DIHYDROFOLATE REDUCTASE

Included Ligands

Ligand Description
1 x NDP
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
1 x TOP
TRIMETHOPRIM

Target    MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI
2w9g.1.A MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI

Target EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK
2w9g.1.A EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK




Model #09

File Built with Oligo-State Ligands GMQE QMEANDisCo Global
PDB ProMod3 3.4.1 monomer
1 x TOP: TRIMETHOPRIM;
0.94 0.90 ± 0.07
Template Seq Identity Oligo-state QSQE Found by Method Resolution Seq Similarity Range Coverage Description
2w9h.1.A 100.00 monomer 0.00 HHblits X-ray 1.48Å 0.62 2 - 158 1.00 DIHYDROFOLATE REDUCTASE

Included Ligands

Ligand Description
1 x TOP
TRIMETHOPRIM

Excluded ligands

Ligand Name.Number Reason for Exclusion Description
EDO.1 Not biologically relevant.
1,2-ETHANEDIOL

Target    MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI
2w9h.1.A MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSI

Target EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK
2w9h.1.A EDIYQLPGHVFIFGGQTLFEEMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK




Model #02

File Built with Oligo-State Ligands GMQE QMEANDisCo Global
PDB ProMod3 3.4.1 monomer
None
0.64 0.72 ± 0.07
Template Seq Identity Oligo-state QSQE Found by Method Resolution Seq Similarity Range Coverage Description
2w3m.1.A 30.07 monomer 0.00 BLAST X-ray 1.60Å 0.37 2 - 144 0.90 DIHYDROFOLATE REDUCTASE

Excluded ligands

Ligand Name.Number Reason for Exclusion Description
FOL.2 Binding site not conserved.
FOLIC ACID
NDP.1 Binding site not conserved.
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE

Target    MTLSILVAHDLQRVIGFENQLPWH-LPNDLKHVKKLSTGHTL-------VMGRKTFESI---GKPLPNRRNVVLTSDTSF
2w3m.1.A -SLNCIVAVSQNMGIGKNGDLPWPPLRNEFRYFQRMTTTSSVEGKQNLVIMGKKTWFSIPEKNRPLKGRINLVLSRELKE

Target NVEGVDVI-HSIEDIYQLPGH---------VFIFGGQTLFEEMIDKVD--DMYITVIEGKFRGDTFFPPYTFEDWEVASS
2w3m.1.A PPQGAHFLSRSLDDALKLTEQPELANKVDMVWIVGGSSVYKEAMNHPGHLKLFVTRIMQDFESDTFFPEIDLEKYKLLPE

Target VEGKLDEKNTIPHTFLHLIRKK
2w3m.1.A YPGVLSD---------------




Materials and Methods

Template Search

Template search with BLAST and HHblits has been performed against the SWISS-MODEL template library (SMTL, last update: 2024-11-14, last included PDB release: 2024-11-08).

The target sequence was searched with BLAST against the primary amino acid sequence contained in the SMTL. A total of 337 templates were found.

An initial HHblits profile has been built using the procedure outlined in (Steinegger et al.), followed by 1 iteration of HHblits against Uniclust30 (Mirdita, von den Driesch et al.). The obtained profile has then be searched against all profiles of the SMTL. A total of 387 templates were found.

Template Selection

For each identified template, the template's quality has been predicted from features of the target-template alignment. The templates with the highest quality have then been selected for model building.

Model Building

Models are built based on the target-template alignment using ProMod3 (Studer et al.). Coordinates which are conserved between the target and the template are copied from the template to the model. Insertions and deletions are remodelled using a fragment library. Side chains are then rebuilt. Finally, the geometry of the resulting model is regularized by using a force field.

Model Quality Estimation

The global and per-residue model quality has been assessed using the QMEAN scoring function (Studer et al.).

Ligand Modelling

Ligands present in the template structure are transferred by homology to the model when the following criteria are met: (a) The ligands are annotated as biologically relevant in the template library, (b) the ligand is in contact with the model, (c) the ligand is not clashing with the protein, (d) the residues in contact with the ligand are conserved between the target and the template. If any of these four criteria is not satisfied, a certain ligand will not be included in the model. The model summary includes information on why and which ligand has not been included.

Oligomeric State Conservation

The quaternary structure annotation of the template is used to model the target sequence in its oligomeric form. The method (Bertoni et al.) is based on a supervised machine learning algorithm, Support Vector Machines (SVM), which combines interface conservation, structural clustering, and other template features to provide a quaternary structure quality estimate (QSQE). The QSQE score is a number between 0 and 1, reflecting the expected accuracy of the interchain contacts for a model built based a given alignment and template. Higher numbers indicate higher reliability. This complements the GMQE score which estimates the accuracy of the tertiary structure of the resulting model.

References

Table T1:

Primary amino acid sequence for which templates were searched and models were built.

MTLSILVAHDLQRVIGFENQLPWHLPNDLKHVKKLSTGHTLVMGRKTFESIGKPLPNRRNVVLTSDTSFNVEGVDVIHSIEDIYQLPGHVFIFGGQTLFE
EMIDKVDDMYITVIEGKFRGDTFFPPYTFEDWEVASSVEGKLDEKNTIPHTFLHLIRKK

Table T2:

Template Seq Identity Oligo-state QSQE Found by Method Resolution Seq Similarity Coverage Description
6e4e.1.A 100.00 monomer - HHblits X-ray 1.90Å 0.62 1.00 Dihydrofolate reductase
6pr6.1.A 100.00 monomer - HHblits X-ray 2.01Å 0.62 1.00 Dihydrofolate reductase
3sqy.1.A 100.00 monomer - HHblits X-ray 1.50Å 0.62 1.00 Dihydrofolate reductase
3fyw.1.A 100.00 monomer - HHblits X-ray 2.10Å 0.62 0.99 Dihydrofolate reductase
6pr8.1.A 100.00 monomer - HHblits X-ray 2.01Å 0.62 0.99 Dihydrofolate reductase
3sr5.1.A 100.00 monomer - HHblits X-ray 1.68Å 0.62 0.99 Dihydrofolate reductase
2w9g.1.A 100.00 monomer - HHblits X-ray 1.95Å 0.62 1.00 DIHYDROFOLATE REDUCTASE
Q6G9D5.1.A 98.74 monomer - AFDB search AlphaFold v2 NA 0.61 1.00 Dihydrofolate reductase
2w9h.1.A 100.00 monomer - HHblits X-ray 1.48Å 0.62 1.00 DIHYDROFOLATE REDUCTASE
2w9s.1.A 81.01 monomer - HHblits X-ray 1.80Å 0.56 0.99 DIHYDROFOLATE REDUCTASE TYPE 1 FROM TN4003
2w9s.1.A 81.13 monomer - BLAST X-ray 1.80Å 0.56 1.00 DIHYDROFOLATE REDUCTASE TYPE 1 FROM TN4003
2w9t.1.A 81.13 monomer - BLAST X-ray 2.35Å 0.56 1.00 DIHYDROFOLATE REDUCTASE TYPE 1
2w9t.1.A 81.01 monomer - HHblits X-ray 2.35Å 0.56 0.99 DIHYDROFOLATE REDUCTASE TYPE 1
5uio.4.A 35.03 monomer - HHblits X-ray 1.93Å 0.39 0.99 Dihydrofolate reductase
5uio.4.A 36.31 monomer - BLAST X-ray 1.93Å 0.39 0.99 Dihydrofolate reductase
5uio.1.A 35.03 monomer - HHblits X-ray 1.93Å 0.39 0.99 Dihydrofolate reductase
5uio.1.A 36.31 monomer - BLAST X-ray 1.93Å 0.39 0.99 Dihydrofolate reductase
5uii.1.A 36.13 monomer - BLAST X-ray 1.35Å 0.39 0.97 Dihydrofolate reductase
5uih.1.A 34.62 monomer - HHblits X-ray 1.65Å 0.39 0.98 Dihydrofolate reductase
2d0k.2.A 36.54 monomer - BLAST X-ray 1.90Å 0.39 0.98 Dihydrofolate reductase
2d0k.1.A 36.54 monomer - BLAST X-ray 1.90Å 0.39 0.98 Dihydrofolate reductase
6ddw.1.A 26.62 monomer - HHblits X-ray 1.40Å 0.35 0.97 Dihydrofolate reductase
6vs5.1.A 26.62 monomer - HHblits X-ray 1.76Å 0.35 0.97 Dihydrofolate reductase
8cq9.1.B 26.62 homo-dimer - HHblits X-ray 1.75Å 0.35 0.97 Dihydrofolate reductase
4m2x.2.A 26.80 monomer - HHblits X-ray 2.26Å 0.35 0.96 Dihydrofolate reductase
6vv6.2.A 26.62 monomer - HHblits X-ray 2.24Å 0.35 0.97 Dihydrofolate reductase
6vvb.1.A 26.62 monomer - HHblits X-ray 1.45Å 0.35 0.97 Dihydrofolate reductase
3f8y.1.A 28.93 monomer - HHblits X-ray 1.45Å 0.35 1.00 Dihydrofolate reductase
8cop.1.B 26.62 homo-dimer 0.00 HHblits X-ray 1.80Å 0.35 0.97 Dihydrofolate reductase
6dav.2.A 28.30 monomer - HHblits X-ray 1.55Å 0.35 1.00 Dihydrofolate reductase
3gyf.1.A 28.30 monomer - HHblits X-ray 1.70Å 0.35 1.00 Dihydrofolate reductase
3fs6.1.A 28.30 monomer - HHblits X-ray 1.23Å 0.35 1.00 Dihydrofolate reductase
4m6l.1.A 28.30 monomer - HHblits X-ray 1.70Å 0.35 1.00 Dihydrofolate reductase
8cox.1.B 26.62 homo-dimer - HHblits X-ray 2.10Å 0.35 0.97 Dihydrofolate reductase
3l3r.1.A 28.93 monomer - HHblits X-ray 2.00Å 0.35 1.00 Dihydrofolate reductase
3ghv.1.A 28.93 monomer - HHblits X-ray 1.30Å 0.35 1.00 Dihydrofolate reductase
2w3m.1.A 28.30 monomer - HHblits X-ray 1.60Å 0.35 1.00 DIHYDROFOLATE REDUCTASE
1j3k.1.A 28.21 monomer - HHblits X-ray 2.10Å 0.35 0.98 Bifunctional dihydrofolate reductase-thymidylate synthase
1j3k.1.B 28.21 monomer - HHblits X-ray 2.10Å 0.35 0.98 Bifunctional dihydrofolate reductase-thymidylate synthase
3dga.2.A 28.21 monomer - HHblits X-ray 2.70Å 0.35 0.98 Bifunctional dihydrofolate reductase-thymidylate synthase
3dg8.1.A 28.21 monomer - HHblits X-ray 2.58Å 0.35 0.98 Bifunctional dihydrofolate reductase-thymidylate synthase
1j3j.1.B 28.21 monomer - HHblits X-ray 2.30Å 0.35 0.98 Bifunctional dihydrofolate reductase-thymidylate synthase
3dg8.2.A 28.21 monomer - HHblits X-ray 2.58Å 0.35 0.98 Bifunctional dihydrofolate reductase-thymidylate synthase
1j3j.1.A 28.21 monomer - HHblits X-ray 2.30Å 0.35 0.98 Bifunctional dihydrofolate reductase-thymidylate synthase
3dga.1.A 28.21 monomer - HHblits X-ray 2.70Å 0.35 0.98 Bifunctional dihydrofolate reductase-thymidylate synthase
6dav.2.A 30.07 monomer - BLAST X-ray 1.55Å 0.37 0.90 Dihydrofolate reductase
3f8y.1.A 30.77 monomer - BLAST X-ray 1.45Å 0.37 0.90 Dihydrofolate reductase
3l3r.1.A 30.77 monomer - BLAST X-ray 2.00Å 0.37 0.90 Dihydrofolate reductase
3ghv.1.A 30.77 monomer - BLAST X-ray 1.30Å 0.37 0.90 Dihydrofolate reductase
2w3m.1.A 30.07 monomer - BLAST X-ray 1.60Å 0.37 0.90 DIHYDROFOLATE REDUCTASE

The table above shows the top 50 filtered templates. A further 357 templates were found which were considered to be less suitable for modelling than the filtered list.
1ao8.1.A, 1bzf.1.A, 1cd2.1.A, 1cz3.1.A, 1d1g.1.B, 1ddr.1.A, 1ddr.1.B, 1dds.1.B, 1df7.1.A, 1dhf.1.A, 1dhf.1.B, 1dhi.1.A, 1dhi.1.B, 1dhj.1.A, 1dhj.1.B, 1dis.1.A, 1dlr.1.A, 1dls.1.A, 1dr1.2.B, 1dra.1.A, 1dra.1.B, 1drb.1.A, 1drb.1.B, 1drf.1.A, 1e26.1.A, 1hfp.1.A, 1hfq.1.A, 1ia2.1.A, 1ia2.2.A, 1j3i.1.A, 1j3i.1.B, 1j3j.1.A, 1j3j.1.B, 1j3k.1.A, 1j3k.1.B, 1juv.1.A, 1klk.1.A, 1kmv.1.A, 1lud.1.A, 1mvt.1.A, 1ohj.1.A, 1ohk.1.A, 1pd8.1.A, 1pd9.1.A, 1pdb.1.A, 1qzf.2.A, 1rb2.1.A, 1rf7.1.A, 1rg7.1.A, 1rh3.1.A, 1s3v.1.A, 1s3y.1.A, 1tdr.1.A, 1tdr.1.B, 1u70.1.A, 1u71.1.A, 1vdr.1.A, 1vdr.1.B, 1vj3.1.A, 1yho.1.A, 1zdr.1.A, 1zdr.2.A, 2azn.1.A, 2bl9.1.A, 2bla.1.A, 2blc.1.A, 2cig.1.A, 2d0k.1.A, 2d0k.2.A, 2drc.1.A, 2drc.1.B, 2fzh.1.A, 2g6v.1.A, 2g6v.1.B, 2gd9.1.A, 2h2q.1.B, 2hm9.1.A, 2hqp.1.A, 2hxv.1.A, 2inq.1.A, 2ith.1.A, 2jyb.1.A, 2kgk.1.A, 2l28.1.A, 2lf1.1.A, 2o7p.1.A, 2o7p.1.B, 2oip.1.A, 2p4g.1.A, 2qk8.1.A, 2w3v.1.A, 2xw7.1.A, 2zza.1.A, 3cd2.1.A, 3cl9.2.B, 3clb.1.A, 3clb.1.B, 3clb.2.A, 3d84.1.A, 3dat.1.A, 3dau.1.A, 3dfr.1.A, 3dg8.1.A, 3dg8.2.A, 3dga.1.A, 3dga.2.A, 3dl5.1.A, 3dl6.1.A, 3e0b.1.A, 3eig.1.A, 3f0u.1.A, 3f8z.1.A, 3f91.1.A, 3fl8.5.A, 3fl9.2.A, 3fs6.1.A, 3fy9.1.A, 3ghc.1.A, 3gyf.1.A, 3hj3.1.A, 3i3r.1.A, 3i8a.1.A, 3ia4.1.A, 3ia5.1.A, 3inv.1.B, 3irm.2.B, 3irn.1.A, 3irn.1.B, 3irn.2.A, 3irn.2.B, 3ix9.1.A, 3ix9.1.B, 3jtw.1.A, 3jvx.1.A, 3jw3.1.A, 3jw5.1.A, 3k45.1.A, 3k74.1.A, 3kfy.1.A, 3kgy.1.A, 3ky8.1.A, 3ky8.1.B, 3lg4.1.A, 3m08.1.A, 3m09.1.A, 3n0h.1.A, 3nrr.1.A, 3nxo.1.A, 3q1h.1.A, 3qfx.1.A, 3qg2.1.A, 3qg2.1.B, 3qgt.1.A, 3qgt.1.B, 3ql0.1.A, 3qls.1.A, 3qlw.1.A, 3qlx.2.A, 3r33.1.A, 3rg9.1.A, 3ro9.1.A, 3s7a.1.A, 3sai.2.A, 3sgy.1.A, 3tq8.1.A, 3um5.1.A, 3um5.1.B, 3vco.1.A, 3zpc.1.A, 3zpc.1.B, 3zpg.1.A, 4cd2.1.A, 4dpd.1.A, 4dpd.1.B, 4eck.1.A, 4eck.1.B, 4eig.1.A, 4eil.2.B, 4eil.4.A, 4eiz.1.A, 4g8z.1.A, 4g95.1.A, 4gh8.1.A, 4h95.1.A, 4h97.1.A, 4h98.1.A, 4ha7.1.A, 4ha7.1.B, 4ixe.1.A, 4ixf.1.A, 4ixg.1.A, 4kd7.2.A, 4keb.1.A, 4keb.2.A, 4kjk.1.A, 4kl9.1.A, 4km0.2.A, 4km2.1.A, 4km2.2.A, 4ky4.3.B, 4m2x.1.A, 4m2x.2.A, 4m2x.4.A, 4m6j.1.A, 4m6l.1.A, 4m7u.1.A, 4m7v.1.A, 4or7.1.A, 4osg.1.A, 4osg.2.A, 4osg.3.A, 4osg.4.A, 4p3q.1.A, 4p3r.1.A, 4p66.1.A, 4p68.1.A, 4pth.1.A, 4ptj.1.A, 4q67.1.A, 4q6a.1.A, 4qi9.1.A, 4qi9.2.A, 4qjz.1.A, 4qle.1.A, 4qlf.1.A, 4qlg.1.A, 4tu5.1.A, 4x5i.1.A, 4xe6.1.A, 5cc9.1.A, 5ccc.1.A, 5dxv.1.A, 5dxv.2.A, 5hf0.1.A, 5hi6.1.A, 5hi6.2.A, 5hsr.1.A, 5isp.1.A, 5isq.1.A, 5ist.1.A, 5ja3.1.B, 5scm.1.A, 5scp.1.A, 5sd2.1.A, 5sd7.1.A, 5u27.1.A, 5uih.1.A, 5uii.1.A, 5ujf.1.A, 5w3q.1.A, 5xux.1.A, 5xv0.1.A, 5xv0.1.B, 5xv0.2.A, 5xv2.1.A, 5xv5.1.A, 5xv5.1.B, 5z6k.1.A, 5z6l.1.A, 5z6m.1.A, 6a2k.1.B, 6a2m.1.B, 6a2n.1.B, 6a2o.1.A, 6a2o.1.B, 6a2p.1.B, 6cqa.1.A, 6cxk.1.A, 6cxm.1.A, 6cyv.1.A, 6ddp.1.A, 6dds.1.A, 6dds.2.A, 6ddw.1.A, 6drs.1.A, 6lhi.1.B, 6nnh.1.A, 6nnh.3.B, 6p8c.1.A, 6rul.1.A, 6rum.1.A, 6uwq.1.A, 6uww.1.A, 6vcj.1.A, 6vs5.1.A, 6vv6.2.A, 6vv7.2.A, 6vv8.1.A, 6vv9.2.A, 6vvb.1.A, 6wep.1.A, 6xg4.1.A, 6xg5.1.A, 7ctw.1.B, 7cty.1.A, 7ese.1.A, 7f3b.1.A, 7f3y.1.A, 7f3y.1.B, 7f3z.1.A, 7f3z.1.B, 7fgx.2.A, 7fgy.1.A, 7fgy.2.B, 7k62.1.A, 7k68.1.A, 7k6c.1.A, 7km7.1.A, 7km9.1.A, 7l9t.1.A, 7lrh.1.A, 7lrh.1.B, 7lrh.2.A, 7lrh.2.B, 7mqp.1.A, 7myl.1.A, 7mym.3.A, 7nae.1.A, 7r6g.1.A, 7rgj.1.B, 7tj3.1.A, 7xh2.1.A, 7xi7.1.A, 7zzx.1.A, 8a0n.1.A, 8a0z.1.A, 8a0z.2.A, 8cop.1.B, 8cox.1.B, 8cq9.1.B, 8cqa.1.A, 8cqa.1.B, 8crh.1.A, 8crh.1.B, 8dae.1.A, 8e4f.1.A, 8f09.1.A, 8f09.2.A, 8jfb.1.A, 8jfb.1.B, 8jfd.1.B, 8jsy.1.A, 8jsy.1.B, 8jsy.2.B, 8jsy.3.A, 8jsy.3.B, 8ssx.1.A, 8szd.1.A, 8sze.1.A, 8ta1.1.A, 8ucx.1.A, 8uvz.1.A, 8v9r.1.G, 8vz4.1.A, 8wgm.1.A, 8wgm.1.B, 9c87.1.G