TRANSFAC^® FACTOR table fields

AC        Accession no.
XX
ID        Identifier
XX
DT        Date; author
XX
FA        Factor name
XX
SY        Synonyms
XX
OS        Species
OC        Biological classification (taxonomy)
XX
GE        Encoding gene
XX
HO        Homologs (suggested)
XX
CL        Classification (class accession no.; class identifier;
          decimal classification number.)
XX
SZ        Size (length (number of amino acids); calculated 
          molecular mass in kDa; experimental molecular mass 
          (or range) in kDa (experimental method) [Ref]
XX
SQ        Sequence
XX
SC        Sequence comment, i. e. source of the protein sequence
XX
FT        Feature table (1st position last position feature)
XX
SF        Structural features
XX
CP        Cell specificity (positive)
CN        Cell specificity (negative)

EX        Expression pattern:
          organ, cell name, system, developmental stage; relative level of expression
          (very high, high, medium, low, very low, detectable or none);
          detection method; molecule type detected, i.e. RNA or protein; [reference]
XX
FF        Functional features
XX
IN        Interacting factors (factor accession no.; factor name; biological species.)
XX
MX        Matrix (MATRIX accession no.; identifier)
XX
BS        Binding SITE accession no. 
XX

DR        External databases (EMBL, RSNP, SwissProt, PIR, Flybase, PDB,
DR        TRANSCompelTM, PathoDB®, SMARt DBTM, TRANSPATH®, DATF, BKL)
DR        EMBL: accession no.; identifier.
DR        RSNP: accession no.; EMBL: accession no.; pos: SNP position in EMBL sequence;
                var: variation introduced by SNP; effect of SNP (example–> RSNP: 97894;
                EMBL: M61108; pos: 716; var: a,g; amino acid exchange, A47–>T);
XX
RN        Reference no.
RX        MEDLINE ID
RA        Reference authors
RT        Reference title
RL        Reference data
XX
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