SCOPUS 정보 검색 플랫폼

Journal of Molecular Structure: THEOCHEM

Volumn 632, Issue 1-3, 2003, Pages 29-41

An approximate DFT method for QM/MM simulations of biological structures and processes

(3) Elstner, Marcus a,b Frauenheim, Thomas a Suhai, Sándor b

b GERMAN CANCER RESEARCH CENTER DKFZ (Germany)

Author keywords

Combined quantum mechanical molecular methods (QM MM); Density functional theory; Density Functional Tight Binding; Molecular mechanics methods; Quantum mechanical methods; SCC DFTB

Indexed keywords

ALCOHOL DEHYDROGENASE; LIGAND; TRIOSEPHOSPHATE ISOMERASE;

ARTICLE; CALCULATION; CHEMICAL BINDING; ENERGY; MOLECULAR MECHANICS; PROTON TRANSPORT; QUANTUM MECHANICS; SIMULATION; THEORY;

EID: 0242558240 PISSN: 01661280 EISSN: None Source Type: Journal
DOI: 10.1016/S0166-1280(03)00286-0 Document Type: Article

Times cited : (181)

References (71)

1
- 0032054613
- R.A. Friesner, M.D. Beachy, Curr. Opin. Struct. Biol. 8 (1998) 257.
- (1998) Curr. Opin. Struct. Biol. , vol.8 , pp. 257
- Friesner, R.A.¹ Beachy, M.D.²

2
- 0033246389
- S. Goedecker, Rev. Mod. Phys. 71 (1999) 1085.
- (1999) Rev. Mod. Phys. , vol.71 , pp. 1085
- Goedecker, S.¹

3
- 0033632938
- G. Galli, Phys. Status Solidi B 217 (2000) 231.
- (2000) Phys. Status Solidi B , vol.217 , pp. 231
- Galli, G.¹

4
- 0002941206
- Linear scaling methods for electronic structure calculations
- P. Schleyer (Ed.), Wiley, New York
- W. Yang, J.M. Perez-Jorda, Linear scaling methods for electronic structure calculations, in: P. Schleyer (Ed.), Encyclopedia of Computational Chemistry, Wiley, New York, 1998.
- (1998) Encyclopedia of Computational Chemistry
- Yang, W.¹ Perez-Jorda, J.M.²

5
- 0035863003
- M. Elstner, K.J. Jalkanen, M. Knapp-Mohammady, T. Frauenheim, S. Suhai, Chem. Phys. 263 (2001) 203.
- (2001) Chem. Phys. , vol.263 , pp. 203
- Elstner, M.¹ Jalkanen, K.J.² Knapp-Mohammady, M.³ Frauenheim, T.⁴ Suhai, S.⁵

6
- 0035871701
- K. Möhle, H.J. Hofmann, W. Thiel, J. Comput. Chem. 22 (2001) 509.
- (2001) J. Comput. Chem. , vol.22 , pp. 509
- Möhle, K.¹ Hofmann, H.J.² Thiel, W.³

7
- 0037149142
- C. Lennarty, Q. Schäfer, F. Terstgen, W. Thiel, J. Phys. Chem. B 106 (2002) 1758.
- (2002) J. Phys. Chem. B , vol.106 , pp. 1758
- Lennarty, C.¹ Schäfer, Q.² Terstgen, F.³ Thiel, W.⁴

8
- 0000336097
- S.J. Titmuss, P.L. Cummings, A.A. Bliznyuk, A.P. Rendell, J.E. Gready, Chem. Phys. Lett. 320 (2000) 169.
- (2000) Chem. Phys. Lett. , vol.320 , pp. 169
- Titmuss, S.J.¹ Cummings, P.L.² Bliznyuk, A.A.³ Rendell, A.P.⁴ Gready, J.E.⁵

9
- 0842341771
- J.S. Dewar, E. Zoebisch, E.F. Healy, J.J.P. Stewart, J. Am. Chem. Soc. 107 (1985) 3902.
- (1985) J. Am. Chem. Soc. , vol.107 , pp. 3902
- Dewar, J.S.¹ Zoebisch, E.² Healy, E.F.³ Stewart, J.J.P.⁴

10
- 84988129057
- J.J.P. Stewart, J. Comput. Chem. 10 (1989) 209.
- (1989) J. Comput. Chem. , vol.10 , pp. 209
- Stewart, J.J.P.¹

11
- 0001687003
- C.H. Reynolds, J. Mol. Struct. (THEOCHEM) 401 (1997) 267.
- (1997) J. Mol. Struct. (THEOCHEM) , vol.401 , pp. 267
- Reynolds, C.H.¹

12
- 0034683926
- T. Clarke, J. Mol. Struct. (THEOCHEM) 530 (2000) 1.
- (2000) J. Mol. Struct. (THEOCHEM) , vol.530 , pp. 1
- Clarke, T.¹

13
- 1542779956
- M. Elstner, D. Porezag, G. Jungnickel, J. Elsner, M. Haugk, T. Frauenheim, S. Suhai, G. Seifert, Phys. Rev. B 58 (1998) 7260.
- (1998) Phys. Rev. B , vol.58 , pp. 7260
- Elstner, M.¹ Porezag, D.² Jungnickel, G.³ Elsner, J.⁴ Haugk, M.⁵ Frauenheim, T.⁶ Suhai, S.⁷ Seifert, G.⁸

14
- 0035669330
- C. Köhler, G. Seifert, U. Gerstmann, M. Elstner, H. Overhof, T. Frauenheim, Phys. Chem. Chem. Phys. 3 (2001) 5109.
- (2001) Phys. Chem. Chem. Phys. , vol.3 , pp. 5109
- Köhler, C.¹ Seifert, G.² Gerstmann, U.³ Elstner, M.⁴ Overhof, H.⁵ Frauenheim, T.⁶

15
- 4243706463
- T. Niehaus, S. Suhai, F. Della-Sala, P. Luigli, M. Elstner, G. Seifert, T. Frauenheim, Phys. Rev. B 63 (2001) 5108.
- (2001) Phys. Rev. B , vol.63 , pp. 5108
- Niehaus, T.¹ Suhai, S.² Della-Sala, F.³ Luigli, P.⁴ Elstner, M.⁵ Seifert, G.⁶ Frauenheim, T.⁷

16
- 0034339289
- Th. Frauenheim, G. Seifert, M. Elstner, Z. Hajnal, G. Jungnickel, D. Porezag, S. Suhai, R. Scholz, Phys. Status Solidi (b) 217 (2000) 41.
- (2000) Phys. Status Solidi (b) , vol.217 , pp. 41
- Frauenheim, Th.¹ Seifert, G.² Elstner, M.³ Hajnal, Z.⁴ Jungnickel, G.⁵ Porezag, D.⁶ Suhai, S.⁷ Scholz, R.⁸

17
- 0037171088
- T. Frauenheim, G. Seifert, M. Elstner, T. Niehaus, C. Köhler, M. Armkreutz, M. Sternberg, Z. Hajnal, A. di Carlo, S. Suhai, J. Phys.: Condens. Matter 14 (2002) 3015.
- (2002) J. Phys.: Condens. Matter , vol.14 , pp. 3015
- Frauenheim, T.¹ Seifert, G.² Elstner, M.³ Niehaus, T.⁴ Köhler, C.⁵ Armkreutz, M.⁶ Sternberg, M.⁷ Hajnal, Z.⁸ Di Carlo, A.⁹ Suhai, S.¹⁰

18
- 0035978897
- T. Niehaus, M. Elstner, T. Frauenheim, S. Suhai, J. Mol. Struct. (THEOCHEM) 541 (2001) 185.
- (2001) J. Mol. Struct. (THEOCHEM) , vol.541 , pp. 185
- Niehaus, T.¹ Elstner, M.² Frauenheim, T.³ Suhai, S.⁴

19
- 0141566583
- M. Elsnter, Q. Cui, P. Munih, E. Kaxiras, T. Frauenheim, M. Karplus, J. Comput. Chem. 24 (2003) 565.
- (2003) J. Comput. Chem. , vol.24 , pp. 565
- Elsnter, M.¹ Cui, Q.² Munih, P.³ Kaxiras, E.⁴ Frauenheim, T.⁵ Karplus, M.⁶

20
- 84988053595
- U.C. Singh, P. Kollman, J. Comput. Chem. 11 (1986) 718.
- (1986) J. Comput. Chem. , vol.11 , pp. 718
- Singh, U.C.¹ Kollman, P.²

21
- 84986513644
- M.J. Field, P.A. Bash, M. Karplus, J. Comput. Chem. 11 (1990) 700.
- (1990) J. Comput. Chem. , vol.11 , pp. 700
- Field, M.J.¹ Bash, P.A.² Karplus, M.³

22
- 0001582558
- Y. Zhang, T.-S. Lee, W. Yang, J. Phys. Chem. 110 (1999) 46.
- (1999) J. Phys. Chem. , vol.110 , pp. 46
- Zhang, Y.¹ Lee, T.-S.² Yang, W.³

23
- 84986492373
- V. Thery, D. Rinaldi, J.-L. Rivail, B. Maigret, G. Ferenczy, J. Comput. Chem. 15 (1994) 269. J. Gao, P. Amara, C. Alhambra, M.J. Field, J. Phys. Chem A 102 (1998) 4714.
- (1994) J. Comput. Chem. , vol.15 , pp. 269
- Thery, V.¹ Rinaldi, D.² Rivail, J.-L.³ Maigret, B.⁴ Ferenczy, G.⁵

24
- 0000411659
- V. Thery, D. Rinaldi, J.-L. Rivail, B. Maigret, G. Ferenczy, J. Comput. Chem. 15 (1994) 269. J. Gao, P. Amara, C. Alhambra, M.J. Field, J. Phys. Chem A 102 (1998) 4714.
- (1998) J. Phys. Chem A , vol.102 , pp. 4714
- Gao, J.¹ Amara, P.² Alhambra, C.³ Field, M.J.⁴

25
- 0001041299
- M. Freindorf, J. Gao, J. Comput. Chem. 17 (1996) 386.
- (1996) J. Comput. Chem. , vol.17 , pp. 386
- Freindorf, M.¹ Gao, J.²

26
- 0037110534
- M.E. Martin, M.A. Aguilar, S. Chalmet, M.F. Ruiz-Lopez, Chem. Phys. 284 (2002) 607.
- (2002) Chem. Phys. , vol.284 , pp. 607
- Martin, M.E.¹ Aguilar, M.A.² Chalmet, S.³ Ruiz-Lopez, M.F.⁴

27
- 0027125907
- J. Gao, X. Xia, Science 258 (1992) 631.
- (1992) Science , vol.258 , pp. 631
- Gao, J.¹ Xia, X.²

28
- 0030092256
- L.L. Ho, A.D. Mac Kerell, P. Bash, J. Phys. Chem. 100 (1996) 4466.
- (1996) J. Phys. Chem. , vol.100 , pp. 4466
- Ho, L.L.¹ Mac Kerell, A.D.² Bash, P.³

29
- 0001104764
- P.L. Cummings, J.E. Gready, J. Comput. Chem. 18 (1997) 1496. P.L. Cummings, J.E. Gready, J. Comput. Chem. 20 (1999) 1028.
- (1997) J. Comput. Chem. , vol.18 , pp. 1496
- Cummings, P.L.¹ Gready, J.E.²

30
- 0001489982
- P.L. Cummings, J.E. Gready, J. Comput. Chem. 18 (1997) 1496. P.L. Cummings, J.E. Gready, J. Comput. Chem. 20 (1999) 1028.
- (1999) J. Comput. Chem. , vol.20 , pp. 1028
- Cummings, P.L.¹ Gready, J.E.²

31
- 84990727004
- V.V. Vasilyev, A.A. Bliznyuk, A.A. Voityuk, Int. J. Quantum Chem. 44 (1992) 897.
- (1992) Int. J. Quantum Chem. , vol.44 , pp. 897
- Vasilyev, V.V.¹ Bliznyuk, A.A.² Voityuk, A.A.³

32
- 0034225123
- W. Han, M. Elstner, K.J. Jalkanen, T. Frauenheim, S. Suhai, Int. J. Quantum Chem. 78 (2000) 459.
- (2000) Int. J. Quantum Chem. , vol.78 , pp. 459
- Han, W.¹ Elstner, M.² Jalkanen, K.J.³ Frauenheim, T.⁴ Suhai, S.⁵

33
- 0004279414
- University of California, San Francisco
- D.A. Pearlman, D.A. Case, J.W. Caldwell, W.S. Ross, T.E. Cheatham III, D.M. Ferguson, G.L. Seibel, U.C. Singh, P. Weiner, and P.A. Kollman, AMBER4.1, University of California, San Francisco, 1995.
- (1995) AMBER4.1
- Pearlman, D.A.¹ Case, D.A.² Caldwell, J.W.³ Ross, W.S.⁴ Cheatham III, T.E.⁵ Ferguson, D.M.⁶ Seibel, G.L.⁷ Singh, U.C.⁸ Weiner, P.⁹ Kollman, P.A.¹⁰

34
- 84986512474
- B.R. Brooks, R.E. Burccoleri, R.E. Olafson, D.J. States, S. Swaminathan, M. Karplus, J. Comput. Chem. 4 (1983) 187.
- (1983) J. Comput. Chem. , vol.4 , pp. 187
- Brooks, B.R.¹ Burccoleri, R.E.² Olafson, R.E.³ States, D.J.⁴ Swaminathan, S.⁵ Karplus, M.⁶

35
- 0035138648
- Q. Cui, M. Elstner, T. Frauenheim, E. Kaxiras, M. Karplus, J. Phys. Chem. B 105 (2001) 569.
- (2001) J. Phys. Chem. B , vol.105 , pp. 569
- Cui, Q.¹ Elstner, M.² Frauenheim, T.³ Kaxiras, E.⁴ Karplus, M.⁵

36
- 84988112508
- J.W. Ponder, F.M. Richards, J. Comput. Chem. 8 (1987) 1016-1024.
- (1987) J. Comput. Chem. , vol.8 , pp. 1016-1024
- Ponder, J.W.¹ Richards, F.M.²

37
- 0035451906
- H. Liu, M. Elstner, E. Kaxiras, T. Frauenheim, J. Hermans, W. Yang, PROTEINS 44 (2001) 484.
- (2001) PROTEINS , vol.44 , pp. 484
- Liu, H.¹ Elstner, M.² Kaxiras, E.³ Frauenheim, T.⁴ Hermans, J.⁵ Yang, W.⁶

38
- 0037441479
- (a) H. Hu, M. Elstner, J. Hermans, PROTEINS 50 (2003) 451.
- (2003) PROTEINS , vol.50 , pp. 451
- Hu, H.¹ Elstner, M.² Hermans, J.³

39
- 0344198723
- The sigma MD program and a generic interface applicable to multi-functional programs with complex, hierarchical command structure
- Tamar Schlick, Hin Hark Gan (eds.), Springer, New York
- (b) G. Mann, R.H. Yun, L. Nyland, J. Prins, J. Board, J. Hermans, The sigma MD program and a generic interface applicable to multi-functional programs with complex, hierarchical command structure. in: Tamar Schlick, Hin Hark Gan (eds.), Computational Methods for Macromolecules: Challenges and Applications, Springer, New York, 2002.
- (2002) Computational Methods for Macromolecules: Challenges and Applications
- Mann, G.¹ Yun, R.H.² Nyland, L.³ Prins, J.⁴ Board, J.⁵ Hermans, J.⁶

40
- 0001373611
- R. Ahlrichs, R. Penco, G. Scoles, Chem. Phys. 19 (1977) 119.
- (1977) Chem. Phys. , vol.19 , pp. 119
- Ahlrichs, R.¹ Penco, R.² Scoles, G.³

41
- 0035932162
- M. Elstner, P. Hobza, T. Frauenheim, S. Suhai, E. Kaxiras, J. Chem. Phys. 114 (2001) 5149.
- (2001) J. Chem. Phys. , vol.114 , pp. 5149
- Elstner, M.¹ Hobza, P.² Frauenheim, T.³ Suhai, S.⁴ Kaxiras, E.⁵

42
- 0037010001
- P. Hobza, J. Sponer, J. Am. Chem. Soc. 124 (2002) 11802.
- (2002) J. Am. Chem. Soc. , vol.124 , pp. 11802
- Hobza, P.¹ Sponer, J.²

43
- 0037012390
- D. Reha, M. Kabelac, F. Ryacek, J. Sponer, J.E. Sponer, M. Elstner, S. Suhai, P. Hobza, J. Am. Chem. Soc. 124 (2002) 3366.
- (2002) J. Am. Chem. Soc. , vol.124 , pp. 3366
- Reha, D.¹ Kabelac, M.² Ryacek, F.³ Sponer, J.⁴ Sponer, J.E.⁵ Elstner, M.⁶ Suhai, S.⁷ Hobza, P.⁸

44
- 0011621942
- W. Yang, Phys. Rev. Lett. 66 (1991) 1438.
- (1991) Phys. Rev. Lett. , vol.66 , pp. 1438
- Yang, W.¹

45
- 31144441067
- M. Svensson, S. Humbel, R.D.J. Froese, T. Matsubara, S. Sieber, K. Morokuma, J. Phys. Chem. 100 (1996) 19357.
- (1996) J. Phys. Chem. , vol.100 , pp. 19357
- Svensson, M.¹ Humbel, S.² Froese, R.D.J.³ Matsubara, T.⁴ Sieber, S.⁵ Morokuma, K.⁶

46
- 0034301415
- V. Gogonea, L.M. Westerhoff, K.M. Merz, J. Chem. Phys. 113 (2000) 5604.
- (2000) J. Chem. Phys. , vol.113 , pp. 5604
- Gogonea, V.¹ Westerhoff, L.M.² Merz, K.M.³

47
- 0037159079
- Q. Cui, H. Guo, M. Karplus, J. Chem. Phys. 117 (2002) 5617.
- (2002) J. Chem. Phys. , vol.117 , pp. 5617
- Cui, Q.¹ Guo, H.² Karplus, M.³

48
- 0033515394
- S. Dapprich, I. Komaromi, K.S. Byun, K. Morokuma, M.J. Frisch, J. Mol. Struct. (THEOCHEM) 461/462 (1999) 1.
- (1999) J. Mol. Struct. (THEOCHEM) , vol.461-462 , pp. 1
- Dapprich, S.¹ Komaromi, I.² Byun, K.S.³ Morokuma, K.⁴ Frisch, M.J.⁵

49
- 85030951401
- Dissertation at the University Paderborn
- M. Elstner, Dissertation at the University Paderborn, 1998.
- (1998)
- Elstner, M.¹

50
- 0033633272
- M. Elstner, Th. Frauenheim, E. Kaxiras, G. Seifert, S. Suhai, Phys. Status Solidi (b) 217 (2000) 357.
- (2000) Phys. Status Solidi (b) , vol.217 , pp. 357
- Elstner, M.¹ Frauenheim, Th.² Kaxiras, E.³ Seifert, G.⁴ Suhai, S.⁵

51
- 0001356079
- C. Mijoule, Z. Latajka, D. Borgis, Chem. Phys. Lett. 208 (1993) 364.
- (1993) Chem. Phys. Lett. , vol.208 , pp. 364
- Mijoule, C.¹ Latajka, Z.² Borgis, D.³

52
- 0345817207
- R.V. Stanton, K.M. Merz, J. Chem. Phys. 101 (1994) 6658.
- (1994) J. Chem. Phys. , vol.101 , pp. 6658
- Stanton, R.V.¹ Merz, K.M.²

53
- 0001451394
- V. Barone, L. Orlondini, C. Adamo, Chem. Phys. Lett. 231 (1994) 295.
- (1994) Chem. Phys. Lett. , vol.231 , pp. 295
- Barone, V.¹ Orlondini, L.² Adamo, C.³

54
- 27844520307
- Q. Zhang, R. Bell, T.N. Troung, J. Phys. Chem. 99 (1995) 592.
- (1995) J. Phys. Chem. , vol.99 , pp. 592
- Zhang, Q.¹ Bell, R.² Troung, T.N.³

55
- 0002599819
- S. Sadhukhan, D. Munoz, C. Adamo, G. Scuseria, Chem. Phys. Lett. 306 (1999) 83.
- (1999) Chem. Phys. Lett. , vol.306 , pp. 83
- Sadhukhan, S.¹ Munoz, D.² Adamo, C.³ Scuseria, G.⁴

56
- 0001375604
- T. Kar, S. Scheiner, M. Cuma, J. Chem. Phys. 111 (1999) 849.
- (1999) J. Chem. Phys. , vol.111 , pp. 849
- Kar, T.¹ Scheiner, S.² Cuma, M.³

57
- 0033718746
- S. Scheiner, J. Phys. Chem. A 104 (2000) 5898.
- (2000) J. Phys. Chem. A , vol.104 , pp. 5898
- Scheiner, S.¹

58
- 0037040016
- M. Meuwly, M. Karplus, J. Chem. Phys. 116 (2002) 2572.
- (2002) J. Chem. Phys. , vol.116 , pp. 2572
- Meuwly, M.¹ Karplus, M.²

59
- 0037076062
- Q. Cui, M. Elstner, M. Karplus, J. Phys. Chem. B 106 (2002) 2721.
- (2002) J. Phys. Chem. B , vol.106 , pp. 2721
- Cui, Q.¹ Elstner, M.² Karplus, M.³

60
- 0346668338
- X. Zhang, D. Harrison, Q. Cui, J. Am. Chem. Soc. 124 (2002) 14871.
- (2002) J. Am. Chem. Soc. , vol.124 , pp. 14871
- Zhang, X.¹ Harrison, D.² Cui, Q.³

61
- 0242674988
- in press
- W. Gu, J. Zhu, H. Liu, J. Theor. Comput. Chem. 1 (2003) in press.
- (2003) J. Theor. Comput. Chem. , vol.1
- Gu, W.¹ Zhu, J.² Liu, H.³

62
- 85030941565
- in preparation
- N. Bondar, M. Elstner, S. Suhai, S. Fischer, J. Smith, in preparation
- Bondar, N.¹ Elstner, M.² Suhai, S.³ Fischer, S.⁴ Smith, J.⁵

63
- 0041734330
- M.S. Formanek, G. Li, X. Zhang, Q. Cui, J. Theor. Comput. Chem. 1 (2002) 53.
- (2002) J. Theor. Comput. Chem. , vol.1 , pp. 53
- Formanek, M.S.¹ Li, G.² Zhang, X.³ Cui, Q.⁴

64
- 0035979270
- H. Guo, Q. Cui, W.N. Lipscomb, M. Karplus, Proc. Natl. Am. Soc. 98 (2001) 9032.
- (2001) Proc. Natl. Am. Soc. , vol.98 , pp. 9032
- Guo, H.¹ Cui, Q.² Lipscomb, W.N.³ Karplus, M.⁴

65
- 0034656826
- M. Elstner, K. Jalkanen, M. Knapp-Mohammady, T. Frauenheim, S. Suhai, Chem. Phys. 256 (2000) 15.
- (2000) Chem. Phys. , vol.256 , pp. 15
- Elstner, M.¹ Jalkanen, K.² Knapp-Mohammady, M.³ Frauenheim, T.⁴ Suhai, S.⁵

66
- 0033466066
- H.G. Bohr, K.J. Jalkaanen, M. Elstner, K. Frimand, S. Suhai, Chem. Phys. 246 (1999) 13.
- (1999) Chem. Phys. , vol.246 , pp. 13
- Bohr, H.G.¹ Jalkaanen, K.J.² Elstner, M.³ Frimand, K.⁴ Suhai, S.⁵

67
- 0037039459
- Q. Wu, W. Yang, J. Chem. Phys. 116 (2002) 515.
- (2002) J. Chem. Phys. , vol.116 , pp. 515
- Wu, Q.¹ Yang, W.²

68
- 11644317783
- W. Han, K. Jalkanen, M. Elstner, S. Suhai, J. Phys. Chem. B 102 (1998) 2587.
- (1998) J. Phys. Chem. B , vol.102 , pp. 2587
- Han, W.¹ Jalkanen, K.² Elstner, M.³ Suhai, S.⁴

69
- 85030938976
- in preparation
- M. Elstner, H. Liu, W. Yang, in preparation
- Elstner, M.¹ Liu, H.² Yang, W.³

70
- 0343213055
- P. Hobza, M. Kabelac, J. Sponer, P. Mejzlik, J. Vondrasek, J. Comput. Chem. 18 (1997) 1136.
- (1997) J. Comput. Chem. , vol.18 , pp. 1136
- Hobza, P.¹ Kabelac, M.² Sponer, J.³ Mejzlik, P.⁴ Vondrasek, J.⁵

71
- 0017100947
- A. Warshel, M. Levitt, J. Mol. Biol. 103 (1976) 227.
- (1976) J. Mol. Biol. , vol.103 , pp. 227
- Warshel, A.¹ Levitt, M.²

* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.