Macromolecular dictionary (mmCIF) version 2.0.09

_chem_comp.three_letter_code

Name:
'_chem_comp.three_letter_code'

Definition:

   For standard polymer components, the three-letter code for
   the component. If there is not a standard three-letter code
   for this component, or if this is a non-polymer
   component, the three-letter code should be given as 'UNK'.
   This code may be preceded by a '+' character to indicate
   that the component is a modification of a standard
   component.

Examples:

ALA alanine

ARG arginine

ASN asparagine

ASP aspartic acid

ASX ambiguous asparagine/aspartic acid

CYS cysteine

GLN glutamine

GLU glutamic acid

GLY glycine

GLX ambiguous glutamine/glutamic acid

HIS histidine

ILE isoleucine

LEU leucine

LYS lysine

MET methionine

PHE phenylalanine

PRO proline

SER serine

THR threonine

TRP tryptophan

TRY tyrosine

VAL valine

1MA 1-methyladenosine

5MC 5-methylcytosine

OMC 2(prime)-O-methylcytodine

1MG 1-methylguanosine

2MG N(2)-methylguanosine

M2G N(2)-dimethylguanosine

7MG 7-methylguanosine

0MG 2(prime)-O-methylguanosine

H2U dihydrouridine

5MU ribosylthymidine

PSU pseudouridine

ACE acetic acid

FOR formic acid

HOH water

UNK other

Type: uchar3

Mandatory item: no

Category: chem_comp

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Crystallographic Information Framework

Macromolecular dictionary (mmCIF) version 2.0.09

_chem_comp.three_letter_code

International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

Edited by S. R. Hall and B. McMahon

IUCrData