1Q51
Crystal Structure of Mycobacterium tuberculosis MenB in Complex with Acetoacetyl-Coenzyme A, a Key Enzyme in Vitamin K2 Biosynthesis
Functional Information from GO Data
Chain | GOid | namespace | contents |
A | 0005886 | cellular_component | plasma membrane |
A | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
A | 0009234 | biological_process | menaquinone biosynthetic process |
A | 0016829 | molecular_function | lyase activity |
A | 0034214 | biological_process | protein hexamerization |
B | 0005886 | cellular_component | plasma membrane |
B | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
B | 0009234 | biological_process | menaquinone biosynthetic process |
B | 0016829 | molecular_function | lyase activity |
B | 0034214 | biological_process | protein hexamerization |
C | 0005886 | cellular_component | plasma membrane |
C | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
C | 0009234 | biological_process | menaquinone biosynthetic process |
C | 0016829 | molecular_function | lyase activity |
C | 0034214 | biological_process | protein hexamerization |
D | 0005886 | cellular_component | plasma membrane |
D | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
D | 0009234 | biological_process | menaquinone biosynthetic process |
D | 0016829 | molecular_function | lyase activity |
D | 0034214 | biological_process | protein hexamerization |
E | 0005886 | cellular_component | plasma membrane |
E | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
E | 0009234 | biological_process | menaquinone biosynthetic process |
E | 0016829 | molecular_function | lyase activity |
E | 0034214 | biological_process | protein hexamerization |
F | 0005886 | cellular_component | plasma membrane |
F | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
F | 0009234 | biological_process | menaquinone biosynthetic process |
F | 0016829 | molecular_function | lyase activity |
F | 0034214 | biological_process | protein hexamerization |
G | 0005886 | cellular_component | plasma membrane |
G | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
G | 0009234 | biological_process | menaquinone biosynthetic process |
G | 0016829 | molecular_function | lyase activity |
G | 0034214 | biological_process | protein hexamerization |
H | 0005886 | cellular_component | plasma membrane |
H | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
H | 0009234 | biological_process | menaquinone biosynthetic process |
H | 0016829 | molecular_function | lyase activity |
H | 0034214 | biological_process | protein hexamerization |
I | 0005886 | cellular_component | plasma membrane |
I | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
I | 0009234 | biological_process | menaquinone biosynthetic process |
I | 0016829 | molecular_function | lyase activity |
I | 0034214 | biological_process | protein hexamerization |
J | 0005886 | cellular_component | plasma membrane |
J | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
J | 0009234 | biological_process | menaquinone biosynthetic process |
J | 0016829 | molecular_function | lyase activity |
J | 0034214 | biological_process | protein hexamerization |
K | 0005886 | cellular_component | plasma membrane |
K | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
K | 0009234 | biological_process | menaquinone biosynthetic process |
K | 0016829 | molecular_function | lyase activity |
K | 0034214 | biological_process | protein hexamerization |
L | 0005886 | cellular_component | plasma membrane |
L | 0008935 | molecular_function | 1,4-dihydroxy-2-naphthoyl-CoA synthase activity |
L | 0009234 | biological_process | menaquinone biosynthetic process |
L | 0016829 | molecular_function | lyase activity |
L | 0034214 | biological_process | protein hexamerization |
Functional Information from PDB Data
site_id | AC1 |
Number of Residues | 17 |
Details | BINDING SITE FOR RESIDUE CAA K 500 |
Chain | Residue |
I | PHE299 |
K | GLY105 |
K | ASP106 |
K | GLN107 |
K | TRP157 |
K | GLY160 |
K | GLY161 |
K | THR184 |
K | VAL188 |
I | LYS302 |
K | VAL57 |
K | ARG58 |
K | ALA60 |
K | PHE61 |
K | LYS95 |
K | SER103 |
K | GLY104 |
site_id | AC2 |
Number of Residues | 16 |
Details | BINDING SITE FOR RESIDUE CAA A 501 |
Chain | Residue |
A | VAL57 |
A | ARG58 |
A | PHE61 |
A | LYS95 |
A | SER103 |
A | GLY104 |
A | GLY105 |
A | ASP106 |
A | GLN107 |
A | TRP157 |
A | GLY160 |
A | GLY161 |
A | THR184 |
A | VAL188 |
D | PHE299 |
D | LYS302 |
site_id | AC3 |
Number of Residues | 16 |
Details | BINDING SITE FOR RESIDUE CAA B 502 |
Chain | Residue |
B | VAL57 |
B | ARG58 |
B | ALA60 |
B | PHE61 |
B | LYS95 |
B | SER103 |
B | GLY104 |
B | GLY105 |
B | ASP106 |
B | GLN107 |
B | TRP157 |
B | GLY160 |
B | GLY161 |
B | THR184 |
B | VAL188 |
F | PHE299 |
site_id | AC4 |
Number of Residues | 16 |
Details | BINDING SITE FOR RESIDUE CAA C 503 |
Chain | Residue |
C | VAL57 |
C | ARG58 |
C | ALA60 |
C | PHE61 |
C | LYS95 |
C | SER103 |
C | GLY104 |
C | GLY105 |
C | ASP106 |
C | GLN107 |
C | TRP157 |
C | GLY160 |
C | GLY161 |
C | THR184 |
C | VAL188 |
E | PHE299 |
site_id | AC5 |
Number of Residues | 15 |
Details | BINDING SITE FOR RESIDUE CAA D 504 |
Chain | Residue |
A | PHE299 |
D | VAL57 |
D | ARG58 |
D | ALA60 |
D | PHE61 |
D | LYS95 |
D | SER103 |
D | GLY104 |
D | GLY105 |
D | ASP106 |
D | GLN107 |
D | TRP157 |
D | GLY160 |
D | GLY161 |
D | THR184 |
site_id | AC6 |
Number of Residues | 14 |
Details | BINDING SITE FOR RESIDUE CAA E 505 |
Chain | Residue |
E | VAL57 |
E | ARG58 |
E | ALA60 |
E | PHE61 |
E | LYS95 |
E | SER103 |
E | GLY104 |
E | GLY105 |
E | ASP106 |
E | GLN107 |
E | TRP157 |
E | GLY160 |
E | GLY161 |
E | THR184 |
site_id | AC7 |
Number of Residues | 14 |
Details | BINDING SITE FOR RESIDUE CAA F 506 |
Chain | Residue |
F | SER103 |
F | GLY104 |
F | GLY105 |
F | ASP106 |
F | GLN107 |
F | TRP157 |
F | GLY160 |
F | GLY161 |
F | THR184 |
F | VAL57 |
F | ARG58 |
F | ALA60 |
F | PHE61 |
F | LYS95 |
site_id | AC8 |
Number of Residues | 15 |
Details | BINDING SITE FOR RESIDUE CAA G 507 |
Chain | Residue |
G | GLU56 |
G | VAL57 |
G | ARG58 |
G | ALA60 |
G | PHE61 |
G | LYS95 |
G | SER103 |
G | GLY104 |
G | GLY105 |
G | ASP106 |
G | GLN107 |
G | TRP157 |
G | GLY160 |
G | GLY161 |
G | THR184 |
site_id | AC9 |
Number of Residues | 16 |
Details | BINDING SITE FOR RESIDUE CAA H 508 |
Chain | Residue |
H | GLU56 |
H | VAL57 |
H | ARG58 |
H | ALA60 |
H | PHE61 |
H | LYS95 |
H | SER103 |
H | GLY104 |
H | GLY105 |
H | ASP106 |
H | GLN107 |
H | TRP157 |
H | GLY160 |
H | GLY161 |
H | THR184 |
H | VAL188 |
site_id | BC1 |
Number of Residues | 15 |
Details | BINDING SITE FOR RESIDUE CAA I 509 |
Chain | Residue |
I | VAL57 |
I | ARG58 |
I | ALA60 |
I | PHE61 |
I | LYS95 |
I | SER103 |
I | GLY104 |
I | GLY105 |
I | ASP106 |
I | GLN107 |
I | TRP157 |
I | GLY160 |
I | GLY161 |
I | THR184 |
I | VAL188 |
site_id | BC2 |
Number of Residues | 15 |
Details | BINDING SITE FOR RESIDUE CAA J 510 |
Chain | Residue |
G | PHE299 |
G | LYS302 |
J | VAL57 |
J | ARG58 |
J | ALA60 |
J | LYS95 |
J | SER103 |
J | GLY104 |
J | GLY105 |
J | ASP106 |
J | GLN107 |
J | TRP157 |
J | GLY160 |
J | GLY161 |
J | THR184 |
site_id | BC3 |
Number of Residues | 17 |
Details | BINDING SITE FOR RESIDUE CAA L 511 |
Chain | Residue |
H | PHE299 |
H | LYS302 |
L | VAL57 |
L | ARG58 |
L | ALA60 |
L | PHE61 |
L | LYS95 |
L | SER103 |
L | GLY104 |
L | GLY105 |
L | ASP106 |
L | GLN107 |
L | TRP157 |
L | GLY160 |
L | GLY161 |
L | THR184 |
L | VAL188 |
Functional Information from SwissProt/UniProt
site_id | SWS_FT_FI1 |
Number of Residues | 12 |
Details | BINDING: in other chain => ECO:0000255|HAMAP-Rule:MF_01934, ECO:0000269|PubMed:12909628, ECO:0000269|PubMed:21830810 |
Chain | Residue | Details |
A | ARG58 | |
J | ARG58 | |
K | ARG58 | |
L | ARG58 | |
B | ARG58 | |
C | ARG58 | |
D | ARG58 | |
E | ARG58 | |
F | ARG58 | |
G | ARG58 | |
H | ARG58 | |
I | ARG58 |
site_id | SWS_FT_FI2 |
Number of Residues | 12 |
Details | BINDING: in other chain => ECO:0000269|PubMed:12909628, ECO:0000269|PubMed:21830810 |
Chain | Residue | Details |
A | LYS95 | |
J | LYS95 | |
K | LYS95 | |
L | LYS95 | |
B | LYS95 | |
C | LYS95 | |
D | LYS95 | |
E | LYS95 | |
F | LYS95 | |
G | LYS95 | |
H | LYS95 | |
I | LYS95 |
site_id | SWS_FT_FI3 |
Number of Residues | 12 |
Details | BINDING: in other chain => ECO:0000255|HAMAP-Rule:MF_01934, ECO:0000269|PubMed:12909628, ECO:0000269|PubMed:16131752, ECO:0000269|PubMed:21830810 |
Chain | Residue | Details |
A | SER103 | |
J | SER103 | |
K | SER103 | |
L | SER103 | |
B | SER103 | |
C | SER103 | |
D | SER103 | |
E | SER103 | |
F | SER103 | |
G | SER103 | |
H | SER103 | |
I | SER103 |
site_id | SWS_FT_FI4 |
Number of Residues | 12 |
Details | BINDING: in other chain => ECO:0000250|UniProtKB:P0ABU0, ECO:0000255|HAMAP-Rule:MF_01934 |
Chain | Residue | Details |
A | TYR115 | |
J | TYR115 | |
K | TYR115 | |
L | TYR115 | |
B | TYR115 | |
C | TYR115 | |
D | TYR115 | |
E | TYR115 | |
F | TYR115 | |
G | TYR115 | |
H | TYR115 | |
I | TYR115 |
site_id | SWS_FT_FI5 |
Number of Residues | 24 |
Details | BINDING: in other chain => ECO:0000255|HAMAP-Rule:MF_01934, ECO:0000269|PubMed:12909628 |
Chain | Residue | Details |
A | TRP157 | |
E | THR184 | |
F | TRP157 | |
F | THR184 | |
G | TRP157 | |
G | THR184 | |
H | TRP157 | |
H | THR184 | |
I | TRP157 | |
I | THR184 | |
J | TRP157 | |
A | THR184 | |
J | THR184 | |
K | TRP157 | |
K | THR184 | |
L | TRP157 | |
L | THR184 | |
B | TRP157 | |
B | THR184 | |
C | TRP157 | |
C | THR184 | |
D | TRP157 | |
D | THR184 | |
E | TRP157 |
site_id | SWS_FT_FI6 |
Number of Residues | 12 |
Details | BINDING: in other chain => ECO:0000255|HAMAP-Rule:MF_01934, ECO:0000305|PubMed:21830810 |
Chain | Residue | Details |
A | SER190 | |
J | SER190 | |
K | SER190 | |
L | SER190 | |
B | SER190 | |
C | SER190 | |
D | SER190 | |
E | SER190 | |
F | SER190 | |
G | SER190 | |
H | SER190 | |
I | SER190 |
site_id | SWS_FT_FI7 |
Number of Residues | 24 |
Details | BINDING: BINDING => ECO:0000250|UniProtKB:P0ABU0, ECO:0000255|HAMAP-Rule:MF_01934 |
Chain | Residue | Details |
A | TYR287 | |
E | LYS302 | |
F | TYR287 | |
F | LYS302 | |
G | TYR287 | |
G | LYS302 | |
H | TYR287 | |
H | LYS302 | |
I | TYR287 | |
I | LYS302 | |
J | TYR287 | |
A | LYS302 | |
J | LYS302 | |
K | TYR287 | |
K | LYS302 | |
L | TYR287 | |
L | LYS302 | |
B | TYR287 | |
B | LYS302 | |
C | TYR287 | |
C | LYS302 | |
D | TYR287 | |
D | LYS302 | |
E | TYR287 |
site_id | SWS_FT_FI8 |
Number of Residues | 12 |
Details | SITE: Important for catalysis => ECO:0000250|UniProtKB:P0ABU0, ECO:0000255|HAMAP-Rule:MF_01934 |
Chain | Residue | Details |
A | TYR115 | |
J | TYR115 | |
K | TYR115 | |
L | TYR115 | |
B | TYR115 | |
C | TYR115 | |
D | TYR115 | |
E | TYR115 | |
F | TYR115 | |
G | TYR115 | |
H | TYR115 | |
I | TYR115 |
site_id | SWS_FT_FI9 |
Number of Residues | 12 |
Details | SITE: Important for catalysis => ECO:0000255|HAMAP-Rule:MF_01934, ECO:0000305|PubMed:20643650, ECO:0000305|PubMed:21830810 |
Chain | Residue | Details |
A | ASP185 | |
J | ASP185 | |
K | ASP185 | |
L | ASP185 | |
B | ASP185 | |
C | ASP185 | |
D | ASP185 | |
E | ASP185 | |
F | ASP185 | |
G | ASP185 | |
H | ASP185 | |
I | ASP185 |
site_id | SWS_FT_FI10 |
Number of Residues | 12 |
Details | SITE: Important for catalysis => ECO:0000250|UniProtKB:P0ABU0, ECO:0000255|HAMAP-Rule:MF_01934, ECO:0000305|PubMed:12909628 |
Chain | Residue | Details |
A | TYR287 | |
J | TYR287 | |
K | TYR287 | |
L | TYR287 | |
B | TYR287 | |
C | TYR287 | |
D | TYR287 | |
E | TYR287 | |
F | TYR287 | |
G | TYR287 | |
H | TYR287 | |
I | TYR287 |
Catalytic Information from CSA
site_id | CSA1 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
A | ASP192 | |
A | ASP185 |
site_id | CSA10 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
J | ASP192 | |
J | ASP185 |
site_id | CSA11 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
K | ASP192 | |
K | ASP185 |
site_id | CSA12 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
L | ASP192 | |
L | ASP185 |
site_id | CSA2 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
B | ASP192 | |
B | ASP185 |
site_id | CSA3 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
C | ASP192 | |
C | ASP185 |
site_id | CSA4 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
D | ASP192 | |
D | ASP185 |
site_id | CSA5 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
E | ASP192 | |
E | ASP185 |
site_id | CSA6 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
F | ASP192 | |
F | ASP185 |
site_id | CSA7 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
G | ASP192 | |
G | ASP185 |
site_id | CSA8 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
H | ASP192 | |
H | ASP185 |
site_id | CSA9 |
Number of Residues | 2 |
Details | Annotated By Reference To The Literature 1dci |
Chain | Residue | Details |
I | ASP192 | |
I | ASP185 |
site_id | MCSA1 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
A | GLY105 | electrostatic stabiliser, hydrogen bond donor |
A | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
A | GLY161 | electrostatic stabiliser, hydrogen bond donor |
A | ASP185 | activator |
A | SER190 | activator |
A | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA10 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
J | GLY105 | electrostatic stabiliser, hydrogen bond donor |
J | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
J | GLY161 | electrostatic stabiliser, hydrogen bond donor |
J | ASP185 | activator |
J | SER190 | activator |
J | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA11 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
K | GLY105 | electrostatic stabiliser, hydrogen bond donor |
K | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
K | GLY161 | electrostatic stabiliser, hydrogen bond donor |
K | ASP185 | activator |
K | SER190 | activator |
K | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA12 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
L | GLY105 | electrostatic stabiliser, hydrogen bond donor |
L | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
L | GLY161 | electrostatic stabiliser, hydrogen bond donor |
L | ASP185 | activator |
L | SER190 | activator |
L | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA2 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
B | GLY105 | electrostatic stabiliser, hydrogen bond donor |
B | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
B | GLY161 | electrostatic stabiliser, hydrogen bond donor |
B | ASP185 | activator |
B | SER190 | activator |
B | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA3 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
C | GLY105 | electrostatic stabiliser, hydrogen bond donor |
C | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
C | GLY161 | electrostatic stabiliser, hydrogen bond donor |
C | ASP185 | activator |
C | SER190 | activator |
C | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA4 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
D | GLY105 | electrostatic stabiliser, hydrogen bond donor |
D | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
D | GLY161 | electrostatic stabiliser, hydrogen bond donor |
D | ASP185 | activator |
D | SER190 | activator |
D | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA5 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
E | GLY105 | electrostatic stabiliser, hydrogen bond donor |
E | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
E | GLY161 | electrostatic stabiliser, hydrogen bond donor |
E | ASP185 | activator |
E | SER190 | activator |
E | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA6 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
F | GLY105 | electrostatic stabiliser, hydrogen bond donor |
F | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
F | GLY161 | electrostatic stabiliser, hydrogen bond donor |
F | ASP185 | activator |
F | SER190 | activator |
F | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA7 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
G | GLY105 | electrostatic stabiliser, hydrogen bond donor |
G | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
G | GLY161 | electrostatic stabiliser, hydrogen bond donor |
G | ASP185 | activator |
G | SER190 | activator |
G | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA8 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
H | GLY105 | electrostatic stabiliser, hydrogen bond donor |
H | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
H | GLY161 | electrostatic stabiliser, hydrogen bond donor |
H | ASP185 | activator |
H | SER190 | activator |
H | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |
site_id | MCSA9 |
Number of Residues | 6 |
Details | M-CSA 346 |
Chain | Residue | Details |
I | GLY105 | electrostatic stabiliser, hydrogen bond donor |
I | TYR115 | electrostatic stabiliser, hydrogen bond donor, steric role |
I | GLY161 | electrostatic stabiliser, hydrogen bond donor |
I | ASP185 | activator |
I | SER190 | activator |
I | TYR287 | electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, polar interaction, proton acceptor, proton donor, steric role |