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A4933

Sigma-Aldrich

Astressin

≥90% (HPLC)

Sinonimo/i:

[D-Phe12, Nle21,38, Glu30, Lys33]-Corticotropin Releasing Factor fragment 12-41

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About This Item

Formula empirica (notazione di Hill):
C161H269N49O42
Numero CAS:
170809-51-5
Peso molecolare:
3563.16
Numero MDL:
MFCD00798715
Codice UNSPSC:
12352200
NACRES:
NA.32

Livello qualitativo

200

Saggio

≥90% (HPLC)

Stato

powder

Temperatura di conservazione

−20°C

InChI

1S/C161H269N49O42/c1-23-27-41-96(189-145(239)107(52-59-123(217)218)199-152(246)114(71-84(13)14)207-157(251)126(85(15)16)208-147(241)108(53-60-124(219)220)197-140(234)102(47-38-66-179-161(172)173)193-151(245)112(69-82(9)10)204-153(247)113(70-83(11)12)205-155(249)116(74-94-77-175-79-181-94)201-134(228)95(163)72-92-39-30-29-31-40-92)135(229)182-88(19)130(224)186-100(45-36-64-177-159(168)169)136(230)183-89(20)131(225)188-106(51-58-122(215)216)144(238)195-104(49-56-119(165)212)146(240)202-110(67-80(5)6)149(243)185-90(21)132(226)187-103(48-55-118(164)211)143(237)196-105-50-57-121(214)176-63-35-33-44-99(192-154(248)115(73-93-76-174-78-180-93)200-133(227)91(22)184-137(105)231)142(236)206-117(75-120(166)213)156(250)194-101(46-37-65-178-160(170)171)139(233)190-98(43-32-34-62-162)141(235)203-111(68-81(7)8)150(244)191-97(42-28-24-2)138(232)198-109(54-61-125(221)222)148(242)210-128(87(18)26-4)158(252)209-127(129(167)223)86(17)25-3/h29-31,39-40,76-91,95-117,126-128H,23-28,32-38,41-75,162-163H2,1-22H3,(H2,164,211)(H2,165,212)(H2,166,213)(H2,167,223)(H,174,180)(H,175,181)(H,176,214)(H,182,229)(H,183,230)(H,184,231)(H,185,243)(H,186,224)(H,187,226)(H,188,225)(H,189,239)(H,190,233)(H,191,244)(H,192,248)(H,193,245)(H,194,250)(H,195,238)(H,196,237)(H,197,234)(H,198,232)(H,199,246)(H,200,227)(H,201,228)(H,202,240)(H,203,235)(H,204,247)(H,205,249)(H,206,236)(H,207,251)(H,208,241)(H,209,252)(H,210,242)(H,215,216)(H,217,218)(H,219,220)(H,221,222)(H4,168,169,177)(H4,170,171,178)(H4,172,173,179)/t86-,87-,88-,89-,90-,91-,95+,96-,97-,98-,99-,100-,101-,102-,103-,104-,105-,106-,107-,108-,109-,110-,111-,112-,113-,114-,115-,116-,117-,126-,127-,128-/m0/s1
HPYIIXJJVYSMCV-MGDXKYBTSA-N

Informazioni sul gene

human ... CRH(1392)
mouse ... CRH(12918)
rat ... CRH(81648)

Amino Acid Sequence

Phe-His-Leu-Leu-Arg-Glu-Val-Leu-Glu-Nle-Ala-Arg-Ala-Glu-Gln-Leu-Ala-Gln-cyclo-(Glu-Ala-His-Lys)-Asn-Arg-Lys-Leu-Nle-Glu-Ile-Ile-NH2

Applicazioni

Astressin has been used as a CRF-receptor antagonist to study its effects on the decrease in the Schaffer collateral-CA1 field potential induced by hypoxia/hypoglycemia (ischemia) in rat hippocampal slices.

Azioni biochim/fisiol

Astressin is a non-selective corticotropin releasing factor (CRF)-receptor antagonist. It potentially blocks CRF-induced adrenocorticotropic hormone (ACTH) release. Astressin effectively deceases delayed effects of chronic social isolation such as anxiety and fobial states in rats.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

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Certificati d'analisi (COA)

Lot/Batch Number
SLCF8075
SLBZ0322
SLBW5752
SLBS7379
SLBM5371V

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Corticosterone-releasing hormone (CRH) and arginine vasopressin (AVP) are crucial components of the hypothalamic-pituitary-adrenal axis that stimulates the release of adrenocorticotropic hormone from the pituitary and mediate the stress response. CRH binds to two subtypes of CRH receptors (CRH-R1 and CRH-R2)
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Rapid eye movement sleep (REM) is increased after controllable stress (modeled by escapable footshock, ES) and decreased after uncontrollable stress (modeled by inescapable footshock, IS). Decreases in REM after IS are exacerbated by corticotropin releasing factor (CRF) and attenuated by
Md Sakirul Islam Khan et al.
General and comparative endocrinology, 184, 61-66 (2013-01-17)
Vasoactive intestinal peptide (VIP) is expressed in central nervous systems and peripheral tissues across lower and higher vertebrates and is involved in many physiological functions. One of these functions is appetite regulation; however the mechanisms mediating this response are poorly
J Gulyas et al.
Proceedings of the National Academy of Sciences of the United States of America, 92(23), 10575-10579 (1995-11-07)
Predictive methods, physicochemical measurements, and structure activity relationship studies suggest that corticotropin-releasing factor (CRF; corticoliberin), its family members, and competitive antagonists (resulting from N-terminal deletions) usually assume an alpha-helical conformation when interacting with the CRF receptor(s). To test this hypothesis
G Liapakis et al.
Current medicinal chemistry, 18(17), 2583-2600 (2011-05-17)
Corticotropin releasing factor (CRF), originally isolated from the mammalian hypothalamus, is a 41 amino acid peptide that plays an important physiological role and is implicated in the pathophysiology of various diseases. In addition to CRF and its related peptides, a
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