Item _chem_comp.three_letter_code

Description

              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.

Category

Item Examples

Example 1:

alanine

ALA

Example 2:

arginine

ARG

Example 3:

asparagine

ASN

Example 4:

aspartic-acid

ASP

Example 5:

ambiguous asparagine/aspartic-acid

ASX

Example 6:

cysteine

CYS

Example 7:

glutamine

GLN

Example 8:

glutamic-acid

GLU

Example 9:

glycine

GLY

Example 10:

ambiguous glutamine/glutamic acid

GLX

Example 11:

histidine

HIS

Example 12:

isoleucine

ILE

Example 13:

leucine

LEU

Example 14:

lysine

LYS

Example 15:

methionine

MET

Example 16:

phenylalanine

PHE

Example 17:

proline

PRO

Example 18:

serine

SER

Example 19:

threonine

THR

Example 20:

tryptophan

TRP

Example 21:

tyrosine

TRY

Example 22:

valine

VAL

Example 23:

1-methyladenosine

1MA

Example 24:

5-methycytosine

5MC

Example 25:

2(prime)-O-methycytodine

OMC

Example 26:

1-methyguanosine

1MG

Example 27:

N(2)-methyguanosine

2MG

Example 28:

N(2)-dimethyguanosine

M2G

Example 29:

7-methyguanosine

7MG

Example 30:

2(prime)-O-methyguanosine

0MG

Example 31:

diydrouridine

H2U

Example 32:

ribosylthymidine

5MU

Example 33:

pseudouridine

PSU

Example 34:

acetic acid

ACE

Example 35:

formic acid

FOR

Example 36:

water

HOH

Example 37:

other

UNK

Mandatory Code

Data Type Code