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NMR SOLUTION STRUCTURE AND DYNAMICS OF THE COMPLEX OF LACTOBACILLUS CASEI DIHYDROFOLATE REDUCTASE WITH THE NEW LIPOPHILIC ANTIFOLATE DRUG TRIMETREXATE
Authors
POLSHAKOV, V.I., BIRDSALL, B., FRENKIEL, T.A., GARGARO, A.R., FEENEY, J.
Assembly
DIHYDROFOLATE REDUCTASE
Entity
1. DIHYDROFOLATE REDUCTASE (polymer, Thiol state: not present), 162 monomers, 18307.38 Da Detail

TAFLWAQDRD GLIGKDGHLP WHLPDDLHYF RAQTVGKIMV VGRRTYESFP KRPLPERTNV VLTHQEDYQA QGAVVVHDVA AVFAYAKQHP DQELVIAGGA QIFTAFKDDV DTLLVTRLAG SFEGDTKMIP LNWDDFTKVS SRTVEDTNPA LTHTYEVWQK KA


2. TMQ (non-polymer), 370.426 Da
Total weight
18677.807 Da
Max. entity weight
18307.38 Da
Source organism
Lacticaseibacillus casei
Exptl. method
NMR
Refine. method
SIMULATED ANNEALING
Data set
assigned_chemical_shifts
Chem. Shift Complete1
Sequence coverage: 100.0 %, Completeness: 89.7 %, Completeness (bb): 97.5 % Detail

Polymer type: polypeptide(L)

Total1H15N
All89.7 % (1024 of 1141)88.9 % (863 of 971)94.7 % (161 of 170)
Backbone97.5 % (468 of 480)97.9 % (319 of 326)96.8 % (149 of 154)
Sidechain84.1 % (556 of 661)84.3 % (544 of 645)75.0 % (12 of 16)
Aromatic70.6 % (72 of 102)73.5 % (72 of 98) 0.0 % (0 of 4)
Methyl100.0 % (97 of 97)100.0 % (97 of 97)

1. DIHYDROFOLATE REDUCTASE

TAFLWAQDRD GLIGKDGHLP WHLPDDLHYF RAQTVGKIMV VGRRTYESFP KRPLPERTNV VLTHQEDYQA QGAVVVHDVA AVFAYAKQHP DQELVIAGGA QIFTAFKDDV DTLLVTRLAG SFEGDTKMIP LNWDDFTKVS SRTVEDTNPA LTHTYEVWQK KA

Sample #1

Pressure 1 atm, Temperature 308 K, pH 6.5


#NameIsotope labelingTypeConcentration
1DIHYDROFOLATE REDUCTASE[U-15N]1.0 ~ 4.0 mM
2potassium phosphate50 mM
3TRIMETREXATE1.0 ~ 4.0 mM
Sample #2

Pressure 1 atm, Temperature 308 K, pH 6.5


#NameIsotope labelingTypeConcentration
4DIHYDROFOLATE REDUCTASE1.0 ~ 4.0 mM
5potassium phosphate50 mM
6TRIMETREXATE1.0 ~ 4.0 mM

Chem. Shift Complete2
Sequence coverage: 8.6 %, Completeness: 47.4 %, Completeness (bb): 52.8 % Detail

Polymer type: polypeptide(L)

Total1H15N
All47.4 % (1082 of 2282)46.9 % (910 of 1942)50.6 % (172 of 340)
Backbone52.8 % (507 of 960)53.2 % (347 of 652)51.9 % (160 of 308)
Sidechain43.5 % (575 of 1322)43.6 % (563 of 1290)37.5 % (12 of 32)
Aromatic36.3 % (74 of 204)37.8 % (74 of 196) 0.0 % (0 of 8)
Methyl53.6 % (104 of 194)53.6 % (104 of 194)

1. DIHYDROFOLATE REDUCTASE

TAFLWAQDRD GLIGKDGHLP WHLPDDLHYF RAQTVGKIMV VGRRTYESFP KRPLPERTNV VLTHQEDYQA QGAVVVHDVA AVFAYAKQHP DQELVIAGGA QIFTAFKDDV DTLLVTRLAG SFEGDTKMIP LNWDDFTKVS SRTVEDTNPA LTHTYEVWQK KA

Sample #1

Pressure 1 atm, Temperature 308 K, pH 6.5


#NameIsotope labelingTypeConcentration
1DIHYDROFOLATE REDUCTASE[U-15N]1.0 ~ 4.0 mM
2potassium phosphate50 mM
3TRIMETREXATE1.0 ~ 4.0 mM
Sample #2

Pressure 1 atm, Temperature 308 K, pH 6.5


#NameIsotope labelingTypeConcentration
4DIHYDROFOLATE REDUCTASE1.0 ~ 4.0 mM
5potassium phosphate50 mM
6TRIMETREXATE1.0 ~ 4.0 mM

Protein Blocks Logo
Calculated from 22 models in PDB: 1BZF, Strand ID: A Detail


Release date
2000-05-21
Citation
Structure and dynamics in solution of the complex of Lactobillus casei dihydrofolate reductase with the new lipophilic antifolate drug trimetrexate"
POLSHAKOV, V.I., BIRDSALL, B., FRENKIEL, T.A., GARGARO, A.R., FEENEY, J.
Protein Sci. (1999), 8, 467-481, PubMed , DOI:
Related entities 1. DIHYDROFOLATE REDUCTASE, : 1 : 9 : 137 entities Detail
Experiments performed 10 experiments Detail
nullKeywords OXIDOREDUCTASE, INHIBITOR/ENZYME COMPLEX, DHFR, trimetrexate, antifolate drug