ID   HST4_ECOLI     STANDARD;      PRT;    72 AA.
AC   P26588;
DT   01-AUG-1992 (REL. 23, CREATED)
DT   01-AUG-1992 (REL. 23, LAST SEQUENCE UPDATE)
DT   01-NOV-1997 (REL. 35, LAST ANNOTATION UPDATE)
DE   HEAT-STABLE ENTEROTOXIN A4 PRECURSOR (STA4).
GN   STA4.
OS   ESCHERICHIA COLI.
OC   PROKARYOTA; GRACILICUTES; SCOTOBACTERIA; FACULTATIVELY ANAEROBIC RODS;
OC   ENTEROBACTERIACEAE.
RN   [1]
RP   SEQUENCE FROM N.A.
RX   MEDLINE; 89202548.
RA   STIEGLITZ H., CERVANTES L., ROBLEDO R., FONSECA R., COVARRUBIAS L.,
RA   BOLIVAR F., KUPERSZTOCH Y.M.;
RL   PLASMID 20:42-53(1988).
RN   [2]
RP   SEQUENCE FROM N.A.
RX   MEDLINE; 90273381.
RA   ZHOU X., SHEN L.P., CHI C.W.;
RL   TOXICON 28:453-456(1990).
CC   -!- FUNCTION: TOXIN WHICH ACTIVATES THE PARTICULATE FORM OF GUANYLATE
CC       CYCLASE AND INCREASES CYCLIC GMP LEVELS WITHIN THE HOST
CC       INTESTINAL EPITHELIAL CELLS.
CC   -!- DISEASE: BOTH HEAT-STABLE AND HEAT-LABILE ENTEROTOXINS ARE
CC       PRODUCED BY PATHOGENIC STRAINS OF E.COLI AND EFFECT THE
CC       DIGESTIVE TRACT OF MAMMALS.
DR   EMBL; J03311; G147876; -.
DR   PIR; JT0373; QHEC4.
DR   PROSITE; PS00273; ENTEROTOXIN_H_STABLE; 1.
KW   ENTEROTOXIN; SIGNAL.
FT   SIGNAL        1     19       BY SIMILARITY.
FT   PROPEP       20     53       BY SIMILARITY.
FT   PEPTIDE      54     72       ENTEROTOXIN A4.
FT   DISULFID     59     64       BY SIMILARITY.
FT   DISULFID     60     68       BY SIMILARITY.
FT   DISULFID     63     71       BY SIMILARITY.
SQ   SEQUENCE   72 AA;  7909 MW;  CBAF481F CRC32;
     MKKSILFIFL SVLSFSPFAQ DAKPVESSKE KITLESKKCN IAKKSNKSGP ESMNSSNYCC
     ELCCNPACTG CY
//