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Merck
CN

G5773

Galanin porcine

≥97% (HPLC), powder

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About This Item

Empirical Formula (Hill Notation):
C146H213N43O40
CAS Number:
88813-36-9
Molecular Weight:
3210.52
UNSPSC Code:
12352200
PubChem Substance ID:
24895230
MDL number:
MFCD00133353

Key Documents

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InChI

1S/C146H213N43O40/c1-15-75(10)119(187-123(207)78(13)167-129(213)101(51-84-60-154-68-162-84)182-143(227)110-31-24-42-189(110)116(200)65-161-124(208)93(43-71(2)3)173-130(214)95(45-73(6)7)174-132(216)98(49-82-34-38-88(194)39-35-82)170-114(198)63-159-122(206)77(12)166-141(225)108(66-190)186-137(221)105(55-112(150)196)179-131(215)96(46-74(8)9)183-145(229)120(79(14)192)188-140(224)100(168-113(197)58-148)50-83-59-158-90-28-20-19-27-89(83)90)144(228)184-107(57-118(203)204)139(223)180-104(54-111(149)195)136(220)178-102(52-85-61-155-69-163-85)134(218)172-92(30-23-41-157-146(152)153)127(211)185-109(67-191)142(226)176-99(47-80-25-17-16-18-26-80)133(217)177-103(53-86-62-156-70-164-86)135(219)181-106(56-117(201)202)138(222)171-91(29-21-22-40-147)126(210)175-97(48-81-32-36-87(193)37-33-81)125(209)160-64-115(199)169-94(44-72(4)5)128(212)165-76(11)121(151)205/h16-20,25-28,32-39,59-62,68-79,91-110,119-120,158,190-194H,15,21-24,29-31,40-58,63-67,147-148H2,1-14H3,(H2,149,195)(H2,150,196)(H2,151,205)(H,154,162)(H,155,163)(H,156,164)(H,159,206)(H,160,209)(H,161,208)(H,165,212)(H,166,225)(H,167,213)(H,168,197)(H,169,199)(H,170,198)(H,171,222)(H,172,218)(H,173,214)(H,174,216)(H,175,210)(H,176,226)(H,177,217)(H,178,220)(H,179,215)(H,180,223)(H,181,219)(H,182,227)(H,183,229)(H,184,228)(H,185,211)(H,186,221)(H,187,207)(H,188,224)(H,201,202)(H,203,204)(H4,152,153,157)

SMILES string

CCC(C)C(NC(=O)C(C)NC(=O)C(Cc1cnc[nH]1)NC(=O)C2CCCN2C(=O)CNC(=O)C(CC(C)C)NC(=O)C(CC(C)C)NC(=O)C(Cc3ccc(O)cc3)NC(=O)CNC(=O)C(C)NC(=O)C(CO)NC(=O)C(CC(N)=O)NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(Cc4c[nH]c5ccccc45)NC(=O)CN)C(C)O)C(=O)NC(CC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(Cc6cnc[nH]6)C(=O)NC(CCCNC(N)=N)C(=O)NC(CO)C(=O)NC(Cc7ccccc7)C(=O)NC(Cc8cnc[nH]8)C(=O)NC(CC(O)=O)C(=O)NC(CCCCN)C(=O)NC(Cc9ccc(O)cc9)C(=O)NCC(=O)NC(CC(C)C)C(=O)NC(C)C(N)=O

InChI key

SLZIZIJTGAYEKK-UHFFFAOYSA-N

assay

≥97% (HPLC)

form

powder

UniProt accession no.

P07480

storage temp.

−20°C

Gene Information

pig ... GAL(397465)

General description

Galanin is a biologically active peptide found in porcine intestine, and is called so because of the presence of glycine and alanine at N- and C-terminals, respectively. Its C-terminal contains alanine amide. It is composed of 29 amino acids namely, Gly-Trp-Thr-Leu-Asn-Ser-Ala-Gly-Tyr-Leu-Leu-Gly-Pro-His-Ala-Ile-Asp-Asn-His-Arg-Ser-Phe-His-Asp-Lys-Tyr-Gly-Leu-Ala-NH2. This peptide shows wide expression in peripheral and central nervous system. In brain, its predominant expression is in hypothalamus, especially in the nerve terminals of the median eminence.

Application

Galanin porcine has been used for the pre-absorption of anti-Gal serum, as control, to determine the specificity of immunoreaction during immunocytochemistry on brains obtained from river lampreys (Lampetra fluviatilis L.).

Biochem/physiol Actions

Studies show that galanin is capable of producing sustained but mild hyperglycemia in dogs. It also induces contraction in smooth muscle preparations obtained from fundus strip, ileum, colon and urinary bladder from rats. It shows structural similarities at the C-terminal to other neuropeptides, and thus, might also function as a neuropeptide. This peptide is a candidate hypothalamic-hypophysiotropic hormone, and is thought to affect the release of various pituitary hormones, such as growth hormone (GH), prolactin (PRL), and luteinizing hormone (LH).
Co-localized with acetylcholine and inhibits its release; inhibits the release of glutamic acid, decreases excitability of spinal neurons; blocks voltage-activated Ca2+ channels; linked to behavioral and cognitive deficits in Alzheimer′s disease.

Other Notes

Lyophilized from 0.1% TFA in H2O

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
078K4818
116K4813
036K4758
036K4759
125H49521

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Masoumeh Motamedi Joibari et al.
Obesity (Silver Spring, Md.), 21(1), 130-134 (2013-03-19)
Ghrelin, orexin, and galanin are orexigenic factors in rodents and humans which participate in adaptive response to weight loss. On the other hand, weight loss and fasting is accompanied by increased levels of epinephrine (Ep) and cortisol (Cor). In this
K Tatemoto et al.
FEBS letters, 164(1), 124-128 (1983-11-28)
The isolation of a novel biologically active peptide, designated galanin, is described. The peptide was discovered by the detection of its C-terminal amide structure in porcine intestinal extract using a chemical method. It was found that galanin consists of 29
P Vento et al.
Digestive diseases and sciences, 43(5), 1102-1110 (1998-05-20)
The aim of this study was to evaluate possible changes in the neuropeptide innervation pattern of the remaining porcine ileum following 75% proximal resection of the small intestine. Three-month-old piglets were operated on and two months postoperatively full-thickness specimens of
A Ohman et al.
Biochemistry, 37(25), 9169-9178 (1998-06-24)
Galanin is a 29/30-residue neuro-endocrine peptide which performs its many important physiological functions via a membrane-bound receptor. By using two-dimensional proton NMR spectroscopy, complete relaxation matrix analysis, and simulated annealing, the conformation of porcine galanin was determined in a membrane-mimicking
Brad R Green et al.
Bioorganic & medicinal chemistry, 21(1), 303-310 (2012-11-28)
Hydrocarbon stapling is an effective strategy to stabilize the helical conformation of bioactive peptides. Here we describe application of stapling to anticonvulsant neuropeptides, galanin (GAL) and neuropeptide Y (NPY), that are implicated in modulating seizures in the brain. Dicarba bridges
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