| Allatostatin II |
| Allatostatin III |
| Allatostatin IV |
| Allatostatin VI |
| Allatostatin VII |
| Allatotropin, Mas – AT |
| Alloferon 1 |
| Alloferon 2 |
| Alternate Syntide |
| Alytesin |
| Amylin (1-13) (human) |
| Amylin (20-29) (human) |
| Amylin (8-37), human |
| Amylin (8-37),rat |
| Amylin (IAPP)(Feline) |
| Amylin, rat |
| Amylin,human |
| Amyloid Bri Protein (1-23) |
| Amyloid Bri Protein (1-34) |
| Amyloid Bri Protein (1-34) (reduced) |
| Amyloid Bri Protein Precursor277 (89-106) |
| Amyloid Dan Protein (1-34) |
| Amyloid Dan Protein (1-34) (reduced) |
| Amyloid P Component (33-38) amide |
| Amyloid β/A4 Protein Precursor770 (667-676) |
| Amyloid β/A4 Protein Precursor770 (740-770) |
| Amyloid β-Protein (1-43) |
| Amyloid β-Protein (20-29) |
| Amyloid β-Protein (25-35) amide |
| Amyloid β-Protein (29-40) |
| Amyloid β-Protein (33-42) |
| Amyloid β-Protein (42-1) |
| Amyloid β-Protein (6-20) |
| Anantin (linear sequence) |
| Angiogenin (108-122) |
| Angiogenin (108-123) |
| Angiotensin (1-5) |
| Angiotensin (1-9) |
| Angiotensin Ⅱ, human |
| Angiotensin A |
| Angiotensin Acetate |
| Angiotensin Converting Enzyme Inhibitor |
| Angiotensin I [Des-Asp1-](Human) |
| Angiotensin I, human |
| Angiotensin I/II (1-6) |
| Angiotensin I/II (3-7) |
| Angiotensin I/II (5-8) |
| Angiotensin I-Converting Enzyme Substrate |
| Angiotensin II (1-4), human |
| Angiotensin II (3-8), human |
| Angiotensin II (4-8), human |
| Angiotensin II [Sar1 Ile8] |
| Angiotensin II Antipeptide |
| Angiotensin II Receptor, AT2, Amino Terminal Fragment |
| Angiotensin II Substrate |
| Angiotensin II type 1 receptor (181 - 187), AT1, ATE. |
| Angiotensin III, human |
| Angiotensin, Canine, Rat |
| Angiotensinogen (1- 13) |
| Angiotensinogen (1-14) ,Rat |
| Angiotensinogen (1-14), human |
| Angiotensinogen (1-14), Porcine |
| Annexin 1 (ANXA - 1; Ac 2 - 12) |
| Anorexigenic Peptide |
| ANP (1-11), rat |
| ANP (1-30), frog |
| Antagonist G |
| Antho-Rfamide |
| Antho-Rwamide I |
| Antho-Rwamide II |
| Antide Acetate |
| Antiestrogen |
| Anti-Flt1 Peptide |
| Antifreeze Polypeptide (AFP) (HPLC-6), Winter Flounder |
| Anti-Inflammatory Peptide 1 |
| Anti-Inflammatory Peptide 2 |
| Anti-Inflammatory Peptide 3 |
| Anti-Kentsin |
| Antioxidant peptide A |
| Antioxidant peptide B |
| Anxiety Peptide |
| Apamin |
| Apelin-12 |
| Apelin-13, human, bovine |
| Apelin-15 (63 - 75) |
| Apelin-15 (63-77) |
| Apelin-36, human |
| Aquaporin-2 (254-267), human |
| Aquaporin-2 (255-271), human |
| Aquaporin-2 (255-271), rat |
| Argpressin Acetate |
| AT1A, Angiotensin II receptor, (225 - 237) |
| Atosiban Acetate |
| Atrial Natriuretic Factor (1-24) (frog) |
| Atrial Natriuretic Factor (1-29) (chicken) |
| Atrial Natriuretic Factor (3-28) (human) |
| Atrial Natriuretic Factor (4-28) (human) |
| Atrial Natriuretic Peptide (126-149) (rat) |
| Atrial Natriuretic Peptide (126-150) (rat) |
| Atrial Natriuretic Peptide (1-28), rat |
