A database of the known 3D structures of proteins and nucleic acids
List of Het Groups ( 344 entries )
This list gives all the molecules, or part-molecules, or non-standard residues, defined by HETATM records in the PDB files (excluding waters). Duplicate entries correspond to different molecules having the same 3-letter code. *Het Groups not defined in the PDB's Het Group dictionary.
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..Id

Formula
Description
No_of_PDB. entries

N12
   C24H36N6O4   N- [(1R)- 2- [(1- {[({6- [AMINO(IMINO)METHYL]PYRIDIN- 3- YL}METHYL)AMINO]CARBONYL}CYCLOPENTYL)AMINO]- 1- (CYCLOHEXYLMETHYL)- 2- OXOETHYL]GLYCINE   1

N1C
   C15H18N4O14P2   N1- CYCLIC INOSINE 5'- DIPHOSPHORIBOSE   2

N1H
   C21H17N4O5   {5- (5- AMINO- 1H- PYRROLO[3,2- B]PYRIDIN- 2- YL)- 6- HYDROXY- 3'- NITRO- BIPHENYL- 3- YL]- ACETIC ACID   1

N1T
   C13H19N3O7P2S   1'- DEAZO- THIAMIN DIPHOSPHATE   1

N20
   C18H21N5O2   6- CYCLOHEXYLMETHYLOXY- 2- (4'- HYDROXYANILINO)PURINE   1

N25
   C21H27N3O8S2   1,3- BIS- (4- METHOXY- BENZENESULFONYL)- 5,5- DIMETHYL- HEXAHYDRO- PYRIMIDINE- 2- CARBOXYLIC ACID HYDROXYAMIDE   1

N2C
   C5H11NO2S   N,S- DIMETHYLCYSTEINE   2

N2M
   C10H9NO3S   5- AMINO- NAPHTALENE- 2- MONOSULFONATE   1

N2O
   N2O   NITROUS OXIDE   2

N2P
   C5H14N2   PENTANE- 1,5- DIAMINE   3

N2T
   C23H25N3OF2   (2S)- 4- (2,5- DIFLUOROPHENYL)- N- METHYL- 2- PHENYL- N- PIPERIDIN- 4- YL- 2,5- DIHYDRO- 1H- PYRROLE- 1- CARBOXAMIDE   1

N3B
   C27H22N3O5FS2   N- [(4'- FLUORO- 1,1'- BIPHENYL- 4- YL)CARBONYL]- 3- NITRO- 4- {[2- (PHENYLSULFANYL)ETHYL]AMINO}BENZENESULFONAMIDE   1

N3C
   C42H45N6O5S2CL   4- {4- [(4'- CHLOROBIPHENYL- 2- YL)METHYL]PIPERAZIN- 1- YL}- N- {[4- ({(1R)- 3- (DIMETHYLAMINO)- 1- [(PHENYLTHIO)METHYL]PROPYL}AMINO)- 3- NITROPHENYL]SULFONYL}BENZAMIDE   1

N3E
   C15H21N3O7   1- [3- (4- CARBOXYPIPERIDIN- 1- YL)- 3- DEOXY- BETA- D- ARABINOFURANOSYL]PYRIMIDINE- 2,4(1H,3H)- DIONE   1

N3P
   C17H13NO5CLP   N- (4- CHLOROPHENYL)- 3- (PHOSPHONOOXY)NAPHTHALENE- 2- CARBOXAMIDE   1

N3T
   C13H19N3O7P2S   3'- DEAZO- THIAMIN DIPHOSPHATE   1

N41
   C19H22N6O2   4- (6- CYCLOHEXYLMETHOXY- 9H- PURIN- 2- YLAMINO)- - BENZAMIDE   1

N4B
   C10H14   N- BUTYLBENZENE   1

N4T
   C21H20N2OF2   (1S)- 1- CYCLOPROPYL- 2- [(2S)- 4- (2,5- DIFLUOROPHENYL)- 2- PHENYL- 2,5- DIHYDRO- 1H- PYRROL- 1- YL]- 2- OXOETHANAMINE   1

N5A
   C12H17N7O4   5'- N- [(2- AMINO)ETHYL CARBOXAMIDO] ADENOSINE   1

N5B
   C13H13N3O   N- (5- CYCLOPROPYL- 1H- PYRAZOL- 3- YL)BENZAMIDE   1

N5O
   C12H16N6O5   5'- N- (2- HYDROXYL)ETHYL CARBOXYAMIDO ADENOSINE   1

N5T
   C19H18N2OF2   (2S)- 4- (2,5- DIFLUOROPHENYL)- N,N- DIMETHYL- 2- PHENYL- 2,5- DIHYDRO- 1H- PYRROLE- 1- CARBOXAMIDE   1

N69
   C15H23N5O   6- (CYCLOHEXYLMETHOXY)- 8- ISOPROPYL- 9H- PURIN- 2- AMINE   1

N6G
   C10H15N6O7P   ((2R,3S,4R,5S)- 5- (2,6- DIAMINO- 9H- PURIN- 9- YL)- 3,4- DIHYDROXY- TETRAHYDROFURAN- 2- YL)METHYL DIHYDROGEN PHOSPHATE   1

N76
   C18H22N6O3S   3- (6- CYCLOHEXYLMETHOXY- 9H- PURIN- 2- YLAMINO)- BENZENESULFONAMIDE   1

N7P
   C7H11NO3   1- ACETYL- D- PROLINE   1

N8E
   C18H38O6   3,6,9,12,15- PENTAOXATRICOSAN- 1- OL   3

N8T
   C34H41N3S   N- [8- (1,2,3,4- TETRAHYDROACRIDIN- 9- YLTHIO)OCTYL]- 1,2,3,4- TETRAHYDROACRIDIN- 9- AMINE   1

N9H
   C21H24N4OF2   (5S)- 5- (3- AMINOPROPYL)- 3- (2,5- DIFLUOROPHENYL)- N- ETHYL- 5- PHENYL- 4,5- DIHYDRO- 1H- PYRAZOLE- 1- CARBOXAMIDE   1

NA1
   C9H17NO6   METHYL N- ACETYL ALLOSAMINE   2

NA2
   H4O2NA   SODIUM ION, 2 WATER COORDINATED   1

NA3
   C10H9N2O4BR   (3S)- 3- {[(5- BROMOPYRIDIN- 3- YL)CARBONYL]AMINO}- 4- OXOBUTANOIC ACID   1

NA4
   C17H14N2O6   4- [5- (2- CARBOXY- 1- FORMYL- ETHYLCARBAMOYL)- PYRIDIN- 3- YL]- BENZOIC ACID   1

NA5
   H10O5NA   SODIUM ION, 5 WATERS COORDINATED   1

NA6
   H12O6NA   SODIUM ION, 6 WATERS COORDINATED   1

NA7
   C15H24N5O16P3   [(2R,3R,4R,5R)- 5- (6- AMINO- 9H- PURIN- 9- YL)- 3- HYDROXY- 4- (PHOSPHONOOXY)TETRAHYDROFURAN- 2- YL]METHYL [(2R,3S,4S)- 3,4- DIHYDROXYTETRAHYDROFURAN- 2- YL]METHYL DIHYDROGEN DIPHOSPHATE   1

NA9
   C22H34N6O4   N- (CARBOXYMETHYL)- 3- CYCLOHEXYL- D- ALANYL- N- ({6- [AMINO(IMINO)METHYL]PYRIDIN- 3- YL}METHYL)- N~2~- METHYL- L- ALANINAMIDE   1

NAA
   C8H15NO6   N- ACETYL- D- ALLOSAMINE   10

NAB
   C17H12N2O3   2- ((4'- HYDROXYNAPHTHYL)- AZO)BENZOIC ACID   1

NAD
   C21H27N7O14P2   NICOTINAMIDE- ADENINE- DINUCLEOTIDE   526

NAE
   C24H31N7O15P2   NICOTINAMIDE ADENINE DINUCLEOTIDE ACETONE ADDUCT   1

NAF
   C11H15NO2F3       2

NAG
   C8H15NO6   N- ACETYL- D- GLUCOSAMINE   1803
NAG * C8H15NO6   N- ACETYL- D- GLUCOSAMINE   1

NAH
   C21H27N7O14P2   NICOTINAMIDE- ADENINE- DINUCLEOTIDE   19
NAH *         1

NAI
   C21H29N7O14P2   1,4- DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE   39

NAJ
   C21H27N7O14P2   NICOTINAMIDE- ADENINE- DINUCLEOTIDE (ACIDIC FORM)   6

NAK
   C3H5NO2   AMINO- ACRYLATE   1

NAL
   C13H13NO2   BETA- (2- NAPHTHYL)- ALANINE   10

NAM
   C13H14N2O   NAM NAPTHYLAMINOALANINE   2
NAM *         1

NAN
   C11H19NO9   5- N- ACETYL- ALPHA- D- NEURAMINIC ACID   3

NAO
   H2ONA   SODIUM ION, 1 WATER COORDINATED   1

NAP
   C21H28N7O17P3   NADP NICOTINAMIDE- ADENINE- DINUCLEOTIDE PHOSPHATE   357

NAQ
   C26H35N7O15P2   NICOTINAMIDE ADENINE DINUCLEOTIDE 3- PENTANONE ADDUCT   1

NAR
   C15H12O5   NARINGENIN   4

NAS
   C10H8O3S   2- NAPHTHALENESULFONIC ACID   3

NAT
   C14N2O3S   ETHYL 4- (3- HYDROXYPHENYL)- 6- METHYL- 2- THIOXO- 1,2,3,4- TETRAHYDROPYRIMIDINE- 5- CARBOXYLATE   2

NAU
   C11H21NO9   4,4,6,7,8,9- HEXAHYDROXY- 5- METHYLCARBOXAMIDONONANOIC ACID   1

NAV
   C11H19NO8   6,7,8,9- TETRAHYDROXY- 5- METHYLCARBOXAMIDO- 4- OXONONANOIC ACID   1

NAW
   H6O3NA   SODIUM ION, 3 WATERS COORDINATED   1

NAX
   C21H31N7O15P2   BETA- 6- HYDROXY- 1,4,5,6- TETRHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE   1

NAY
   C11H19NO8   6,7,8,9- TETRAHYDROXY- 5- METHYLCARBOXAMIDO- 2- OXONONANOIC ACID   1

NAZ
   C24H25N7O3   N~3~- {3- [(7- METHYL- 1,8- NAPHTHYRIDIN- 2- YL)AMINO]- 3- OXOPROPYL}- N~1~- [(7- OXO- 7,8- DIHYDRO- 1,8- NAPHTHYRIDIN- 2- YL)METHYL]- BETA- ALANINAMIDE   1

NB1
   C10H17NO4S   (3AR,5R,6S,7R,7AR)- 5- (HYDROXYMETHYL)- 2- PROPYL- 5,6,7,7A- TETRAHYDRO- 3AH- PYRANO[3,2- D][1,3]THIAZOLE- 6,7- DIOL   1

NBA
   C10H25N3O2       2

NBB
   C10H15NO2S   N- BUTYL- BENZENESULFONAMIDE   1

NBC
   C25H42N8O19P3S   S- 4- NITROBUTYRYL- COA   1

NBD
   C28H33N7O14P2   N6- BENZYL- NICOTINAMIDE- ADENINE- DINUCLEOTIDE   1

NBE
   C6H5NO   NITROSOBENZENE   2

NBF
   C14H16NO4B   [(2- ETHOXY- 1- NAPHTHOYL)AMINO]METHYLBORONIC ACID   2

NBG
   C8H15NO6   1- N- ACETYL- BETA- D- GLUCOSAMINE   11

NBL
   C19H26N4O3       1

NBN
   C5H9N   N- BUTYL ISOCYANIDE   15

NBP
   C21H27N7O17BRP3   NICOTINAMIDE 8- BROMO- ADENINE DINUCLEOTIDE PHOSPHATE   1

NBQ
   C23H22N2O6       1

NBS
   C17H21N5O10P2   N6- BENZYL ADENOSINE- 5'- DIPHOSPHATE   1

NBT
   C4H9NO2   (2S)- 2- NITROBUTANE   1

NBU
   C4H10   N- BUTANE   2
NBV * C10H21NO4   (2R,3R,4R,5S)- 1- BUTYL- 2- (HYDROXYMETHYL) PIPERIDINE- 3,4,5- TRIOL   1

NBZ
   C6H5NO2   NITROBENZENE   2

NC1
   C24H21N5O11S2   NITROCEFIN ACYL- SERINE   2

NC2
   C24H27N5O11S2   NITROCEFIN ACYL- SERINE   1

NC3
   C9H16N2O3   N- [(CYCLOHEXYLAMINO)CARBONYL]GLYCINE   1

NC4
   C11H20N2O3   4- {[(CYCLOHEXYLAMINO)CARBONYL]AMINO}BUTANOIC ACID   1

NC6
   C13H24N2O3   6- {[(CYCLOHEXYLAMINO)CARBONYL]AMINO}HEXANOIC ACID   1

NC7
   C14H26N2O3   7- {[(CYCLOHEXYLAMINO)CARBONYL]AMINO}HEPTANOIC ACID   1

NCA
   C6H6N2O   NICOTINAMIDE   14

NCB
   C4H8N2O3   N- CARBAMOYL- ALANINE   1

NCC
   C20H31N4O16P   CYTIDINE- 5'- MONOPHOSPHATE- 5- N- ACETYLNEURAMINIC ACID   1

NCD
   C5H8N2O5   N- CARBAMOYL- L- ASPARTATE   3

NCF
   C13H15N2O4S2   (2R)- 2- {(1R)- 2- OXO- 1- [(2- THIENYLACETYL)AMINO]ETHYL}- 5,6- DIHYDRO- 2H- 1,3- THIAZINE- 4- CARBOXYLIC ACID   1

NCG
   C45H53N4O18S   [(R)- 4- ((1,3- DIOXOLANE- 2- OXY)- 4- (S)- YL)- 4- HYDROXY]- (R)- 10- (2- METHYLAMINO- 5- METHYL- 2,6- DIDEOXYGALACTOPYRANOSYL- OXY)- (R)- 11- (2- HYDROXY- 5- METHYL- 7- METHOXY- 1- NAPHTHOYL- OXY)- (R)- 12- S- GLUTATHIONYL- 4,10,11,12- TETRAHYDROINDACENE   1

NCH
   C11H18N2O6P   P- NITROPHENYL- PHOSPHOCHOLINE   1

NCM
   C7H10O   NORCAMPHOR   1

NCN
   C11H14NO9P   NICOTINATE MONONUCLEOTIDE   11

NCO
   H18N6CO   COBALT HEXAMMINE ION   90

NCP
   H4N2CL2PT   CIS- DIAMINODICHLOROPLATINUM   1
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