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Out of StockType
Peptide (single-chain relaxin analog)
Molecular formula
C131H229N41O36S
Molecular weight
2986.58 Da
CAS number
1818415-56-3
Amino acids
27
Sequence
Val-Ile-Lys-Leu-Ser-Gly-Arg-Glu-Leu-Val-Arg-Ala-Gln-Ile-Ala-Ile-Ser-Gly-Met-Ser-Thr-Trp-Ser-Lys-Arg-Ser-Leu
Modification
C-terminal amide; N-terminus free; no disulfide bonds (unlike the native two-chain relaxin hormone).
B7-33 is a linear mimetic of the relaxin B-chain that engages a class B1 LGR-family G protein-coupled receptor, contacting its leucine-rich-repeat extracellular domain in a manner analogous to natural relaxin but lacking the disulfide-linked A-chain, producing a compact single-chain format. Structural studies characterize this single-chain binding mode relative to the native two-chain hormone, and its signaling profile in cell-based assays is described as distinct from that of the full relaxin hormone.
Lyophilized
Store at –20 °C long term
brief refrigeration (2–8 °C) is acceptable. Protect from moisture and light.
Aliquot to avoid repeated freeze-thaw cycles; Avoid bacterial contamination.
Reviews
Wołowiec ŁW, Jaśniak A, Osiak-Gwiazdowska J, Czaplińska D, Szymczak A, Pęcherz JA, Grześk G. (2025). Frontiers in Pharmacology
Bathgate RAD, Kocan M, Scott DJ, Hossain MA, Good SV, Yegorov S, Bogerd J, Gooley PR. (2018). Pharmacology & Therapeutics
Reviews
Samuel CS, Royce SG, Hewitson TD, Denton KM, Cooney TE, Bennett RG. (2017). Br J Pharmacol
Valkovic AL, Bathgate RAD, Samuel CS, Kocan M. (2019). Mol Cell Endocrinol
Chen TY, Li X, Hung CH, Bahudhanapati H, Tan J, Kass DJ, Zhang Y. (2020). Mol Genet Genomic Med
Samuel CS, Li Y, Wang Y, Widdop RE. (2024). Br J Pharmacol
Primary research
Alam F, Gaspari TA, Kemp-Harper BK, Low E, Aw A, Ferens D, Spizzo I, Jefferis AM, Praveen P, Widdop RE, et al. (2023). Biomedicine & Pharmacotherapy
Praveen P, Mauro AG, van Heerden A, Alim MS, Bathgate RAD, Widdop RE, Kocan M, Hossain MA. (2023). Int J Mol Sci
Bhuiyan S, Shen M, Chelvaretnam S, Tan AY, Ho G, Hossain MA, Widdop RE, Samuel CS. (2021). FASEB Journal
Devarakonda T, Mauro AG, Guzman G, Hovsepian S, Cain C, Das A, Praveen P, Hossain MA, Salloum FN. (2020). Journal of the American Heart Association
Welch NG, Mukherjee S, Hossain MA, Praveen P, Werkmeister JA, Wade JD, Bathgate RAD, Winkler DA, Thissen H. (2019). ACS Applied Materials & Interfaces
Hossain MA, Kocan M, Yao ST, Royce SG, Nair VB, Siwek C, Patil NA, Harrison IP, Rosengren KJ, Selemidis S, et al. (2016). Chemical Science
Marshall SA, O'Sullivan K, Ng HH, Bathgate RAD, Parry LJ, Hossain MA, Leo CH. (2017). Eur J Pharmacol
Devarakonda T, Mauro AG, Cain C, Das A, Salloum FN. (2021). JACC Basic Transl Sci
D'Ercole A, Nistri S, Pacini L, Carotenuto A, Santoro F, Papini AM, Bathgate RAD, Bani D, Rovero P. (2022). Front Pharmacol
Erlandson SC, Rawson S, Osei-Owusu J, Brock KP, Liu X, Paulo JA, Mintseris J, Gygi SP, Marks DS, Cong X, Kruse AC. (2023). Nat Chem Biol
Handley TNG, Praveen P, Tailhades J, Wu H, Bathgate RAD, Hossain MA. (2023). Int J Mol Sci
Granberg KL, Sakamaki S, Fuchigami R, Niwa Y, Fujio M, Kato H, et al. (2024). J Med Chem
Poirier B, Pasquier O, Chenede X, Corbier A, Prigent P, et al. (2024). Br J Pharmacol
Erlandson SC, Wang J, Jiang H, Osei-Owusu J, Rockman HA, Kruse AC. (2024). Mol Pharm
Somanader-Livera DV, Wei C, Wang C, Li Y, Ferens D, Salimova E, Selomulya C, Hossain MA, Samuel CS, Chakraborty A. (2025). J Biomed Sci
Agoulnik IU, Kaftanovskaya EM, Myhr C, Bathgate RAD, Kocan M, Peng Y, Lindsay RM, DiStefano PS, Agoulnik AI. (2024). Biochem Pharmacol
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