Bruger:Drlectin/sandkasse3
- Bruger:Drlectin/væsentligebidrag
- bruger:Drlectin/sandkasse
- Biokemi UNDER UDARBEJDELSE. Bruger:Drlectin/sandkasse1
- Peptider UNDER UDARBEJDELSE. Bruger:Drlectin/sandkasse2
- Hormoner og vækstfaktorer. UNDER UDARBEJDELSE Bruger:Drlectin/sandkasse3
- Trimer, IgSF, TMD. UNDER UDARBEJDELSE Bruger:Drlectin/sandkasse4
- Molekylær evolution UNDER UDARBEJDELSE bruger:Drlectin/sandkasse5
- Bruger:Drlectin/sandkasse6
FEDME
[redigér | rediger kildetekst]Afsnit slettet af Tøndemageren:
9 hormoner der kontrollerer din vægt
[redigér | rediger kildetekst]Der er 9 hormoner, der tilsammen kontrollerer vægten.[1]
- Insulin, stimulerer celler til at optagke blodsukker. Insulinresistens kan føre til fedme.[2]
- Leptin, mæthedshormonet. Leptinresistens fører til fedme.[kilde mangler]
- Østrogen, det vigtigste kvindelige kønshormon
- Neuropeptid Y (NPY) stimulerer appetitten, specielt for kulhydrater
- Glucagon-like peptide-1 (Glykogen-lignende peptid-1; GLP-1) stabiliserer blodsukkeret.[kilde mangler]
- Cholecystokinin (CCK), mæthedshormon
- Peptid YY (PYY), tarmhormon der kontrollerer appetitten.[kilde mangler]
HORMONER OG VÆKSTFAKTORER
Hormoner
[redigér | rediger kildetekst]Hormoner redigeret sept 2019.
47 hormoner listet og beskrevet her: You and Your Hormones http://www.yourhormones.info/hormones
HORMONER
[redigér | rediger kildetekst]GLP-1 = glucagon-like peptide og GIP = gastric inhibitory polypeptide http://www.sci-news.com/biology/platypus-venom-treatment-type-2-diabetes-04414.html
SULTKONTROL FØDEINDTAGELSE
[redigér | rediger kildetekst]Leptin is a hormone secreted from fat cells that helps to regulate body weight. The name leptin is derived from the Greek word 'leptos' meaning thin. It is sometimes referred to as the 'Fat Controller'.
Ghrelin is produced by the stomach. Among its numerous functions, ghrelin increases appetite and stimulates the release of growth hormone.
Peptide YY is a hormone made in the small intestine. It helps to reduce appetite and limit food intake.
https://www.futurity.org/overeating-brain-cells-1874922/ POMP og AgRP The gene called POMC (short for pro-opiomelanocortin) has multiple functions: it encodes a stress hormone called ACTH, a natural opioid called beta-endoprhin, and several other molecules called melanocortins. POMC’s products get opposition from products of the AgRP gene, whose name is short for Agouti-Gene-Related Peptide. In general, POMC acts like a brake on feeding when it gets certain signals from the body, and AgRP acts like an accelerator pedal.
DIVERSE VÆKSTFAKTORER
[redigér | rediger kildetekst]GF. https://en.wikipedia.org/wiki/Growth_factor
væksthormon, somatotropin, vækstfremmende hormon https://en.wikipedia.org/wiki/Growth_hormone
EPO
EPO receptor, cytokine receptor, a single type of subunit
TPO thrombopoietin https://en.wikipedia.org/wiki/Thrombopoietin
Glycoprotein
TPO receptor, cytokine receptor, a single type of subunit
G-CSF, granulocyte colony-stimulating factor https://en.wikipedia.org/wiki/Granulocyte_colony-stimulating_factor
G-CSF receptor, cytokine receptor, a single type of subunit
IGF insulinlignende vækstfaktor https://www.sundhed.dk/sundhedsfaglig/laegehaandbogen/undersoegelser-og-proever/klinisk-biokemi/blodproever/igf-1/
VÆKSTFAKTORER MED CYTOKIN-RECEPTORER ELLER RTK-RECEPTORER
[redigér | rediger kildetekst]OBS Cytokine receptor, JAK-STAT pathway: interferon, interleukin, growth factors, or other chemical messengers activate the kinase function of JAK, which causes autophosphorylation of the receptor and phosphorylation of STAT proteins. Phosphorylated STAT dimerizes and translocates to the nucleus where it promotes transcription of genes required for cell proliferation, immunity, and apoptosis. https://en.wikipedia.org/wiki/JAK-STAT_signaling_pathway
Insulin – Glucose homeostase
To peptider på 110 aminosyrer, 5808 Da
Insulin receptor, tre typer: IR-A homodimer, IR-B homodimer og IR-A/B heterodimer, belongs to the large class of tyrosine kinase receptors. tyrosine kinase receptor
Insulin-like growth factor 1, IGF-1, formerly known as somatomedin C
En peptidkæde m 70 aminosyrer på 7.649 Da
insulin-like growth factor 1 receptor IGF1R, a receptor tyrosine kinase, one of the most potent natural activators of the AKT signaling pathway, a stimulator of cell growth and proliferation, and a potent inhibitor of programmed cell death.
EGF, epidermal growth factor
Protein/polypeptid på 53 aminosyrer, 6045 Da
EGFR er med i ErbB-familien afho receptor-tyrosin-kinaser
TGF alfa, Transforming growth factor alpha (cancer relateret)
Protein. 50 aminosyrer. Same overall struktur som EFG
Binder til EFGR er med i ErbB-familien af receptor-tyrosin-kinaser
TGF beta, Transforming growth factor beta.
En slags cytokine (små proteiner 5-20kDa der er vigtige i cellesignalering).
Protein. Tre isoformer
TGF-β family is part of a superfamily of proteins known as the transforming growth factor beta superfamily, which includes inhibins, activin, anti-müllerian hormone, bone morphogenetic protein, decapentaplegic and Vg-1.
TGFβ receptors are single pass serine/threonine kinase receptors.
PDGF, platelet derived growth factor (mitogen)
dimeric glycoprotein: AA, BB eller AB
PDGFR er receptor-tyrosin-kinase
FGF, fibroblast growth factor (mitogen)
22 FGF er identificeret
Fire typer FGFR1, FGFR2, FGFR3, and FGFR4. er receptor-tyrosin-kinase,
VEGF, vascular endothelial growth factor
Protein.
VEGFR er er receptor-tyrosin-kinaser
HGF, hepatocyte growth factor, hepatopoietin A (mitogen)
Protein
HGFR eller MET single pass tyrosine kinase receptor
Neurotrophiner, neurotrophic factor, nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3), and neurotrophin-4 (NT-4), glial cell line-derived neurotrophic factor (GDNF), neurturin (NRTN), artemin (ARTN), and persephin (PSPN).
Proteiner, strukturelt lignende
Receptor-tyrosin-kinase (Trk receptor) eller RET, to molekyler RET trans-autophosphorylering.
hGH, HGH, væksthormon, somatotropin, vækstfremmende hormon, growth hormone, (hormon, mitogen)
Protein, polypeptid , Enkelt kæde, 191 aminosyrer på 22.124 Da m fire helixer
To gener er closely related to human chorionic somatomammotropin (also known as placental lactogen) genes. Somatotropiner: a group of homologous hormones with growth-promoting and lactogenic activity: GH, human chorionic somatomammotropin, and prolactin.
HGH-receptor GHBP; GHIP, type I cytokine receptor family, a single type of subunit, Dimerisering og aktivering af en intra- og intercellular signal transductionsvej til vækst
Prolactin, PRL, luteotropic hormone or luteotropin
Protein med en polypeptidkæde.
“Little prolactin” (mest forekommende) 198 aminosyrer, 22 kDa.
“Big prolactin”, omkring 48 kDa med lille aktivitet
“Big big prolactin”, omkring 150 kDa med lille aktivitet
Prolactin receptor, PRLR (cytokine-receptor) og cytokin-receptorer
Somatolactin (SL), fisk —- a new pituitary protein belonging to the growth hormone/prolactin family,
human chorionic somatomammotropin, HCS, human placental lactogen, hPL
Protein, ligner HGH med 191 aminosyrer på 22.125 Da m 8 helixer
Leptin, “mæthedshormonet” - promoverer syntesen af α-MSH og modvirker neuropeptide Y (NPY) og anandamide
16-kDa protein of 167 amino acids
Receptor-tyrosine kinase, LEP-R eller OB-R, OB-RB i hypothalamus
Ghrelin, lenomorelin, “sulthormonet”
Peptide: 28 amino acid peptide found in hypothalamus and stomach
Receptor, the growth hormone secretagogue receptor, GHSR1a, regulates the activation of the downstream mitogen-activated protein kinase, Akt, nitric oxide synthase, and AMPK cascades in different cellular systems.[2] One of the important features of GHSR1a displays constitutive activity possessing basal activity
Bemærkelsesværdige peptidhormoner
[redigér | rediger kildetekst]Adskillige overordnede peptidhormoner secerneres (udskilles) af hypofysen.
Fra hypofysens forlap:
- prolactin, which acts on the mammary gland;
- adrenocorticotropic hormone (ACTH), which acts on the adrenal cortex to regulate the secretion of glucocorticoids; and
- growth hormone, which acts on bone, muscle, and the liver.
Fra hypofysens baglap:
- antidiuretic hormone, also called vasopressin, and oxytocin.
The parathyroid gland secretes parathyroid hormone.
heart (atrial-natriuretic peptide (ANP) or atrial natriuretic factor (ANF))
pancreas (glucagon, insulin and somatostatin),
the gastrointestinal tract (cholecystokinin, gastrin), and
adipose tissue stores (leptin).
PEPTIDHORMONER OG VÆKSTFAKTORER MED GPCR-RECEPTORER
[redigér | rediger kildetekst]ACTH, adrenocorticotropic hormone (ACTH), melanocortin 2
which acts on the adrenal cortex to regulate the secretion of glucocorticoids; and
39-amino acid polypeptid . ACTH spalter til α-MSH.
GPCR
C
Angiotensin II vasoconstriction
Peptid fra angiotensinogen + renin > angiotensin I inaktivt (angiotensin converting enzyme) > angiotensin II se renin-angiotensin system,
Ligheder I struktur: secretin receptor family.
Growth hormone-releasing hormone, GHRH, growth hormone–releasing factor (GRF, GHRF), somatoliberin, somatocrinin
Peptid m 44 aminosyrer
GHRHR is a member of the secretin receptor family of G protein-coupled receptors
GnRH, gonadotropin-releasing hormon også benævnt som follicle-stimulerende hormon–releasing hormon (-RH), luteinizing hormone–releasing hormone (LHRH), gonadoliberin og luliberin (gonadorelin) - pyroGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2
GNRHR, GPCR
FSH, follikelstimulerende hormone, follitropin
Glycoprotein m to kæder. Heterodimer. Alfa-kæden er identisk med LH. FSH, TSH og hCG med 92 aminosyrer. Beta-kæden er på 111 aminosyrer
FSHR, GPCR
Incretin - intestinal peptides glucagon-like peptide-1 (GLP-1) and gastric inhibitory peptide (GIP, also known as: glucose-dependent insulinotropic polypeptide). Both GLP-1 and GIP are rapidly inactivated by the enzyme dipeptidyl peptidase-4 (DPP-4). Both GLP-1 and GIP are members of the glucagon peptide superfamily.
GLP1 receptor is a member of the glucagon receptor family of G protein-coupled receptors found on beta cells of the pancreas. The GIP-R is seven-transmembrane protein found on beta-cells in the pancreas.
LH, luteiniserende hormon, lutropin, interstitial cell–stimulating hormone (ICSH)
To glycopeptider. Heterodimer. Alfa-kæden er identisk med LH. FSH, TSH og hCG med 92 aminosyrer. Beta-kæden er på 120 aminosyrer
luteinizing hormone/choriogonadotropin receptor (LHCGR), also lutropin/choriogonadotropin receptor (LCGR) or luteinizing hormone receptor (LHR), GPCR
TSH, Thyroid-stimulating hormone, thyrotropin, thyrotropic hormone
Glycopeptid m to kæder. Heterodimer. Alfa-kæden er identisk med LH. FSH, TSH og hCG med 92 aminosyrer. Beta-kæden er på 118 aminosyrer
thyrotropin receptor (or TSH receptor), GPCR
hCG, humant chorion-gonadotropin. Hormonet blir populært kalt «graviditetshormonet» -daW
Glycopeptid m to kæder. Heterodimer m 237 aminossyrer, 25,7 kDa med en lille hydrofob kerne. Alfa-kæden er identisk med LH. FSH, TSH og hCG med 92 aminosyrer. Beta-kæden er på 145 aminosyrer.
Melanocortins include adrenocorticotropic hormone (ACTH) and the different forms of melanocyte-stimulating hormone (MSH).
GPCR
α-MSH, α-Melanocyte-stimulating hormone (α-MSH) melanotropin
an endogenous peptide hormone and neuropeptide of the melanocortin family, with a tridecapeptide structure and the amino acid sequence Ac-Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2.
GPCR
The neurohypophysial hormones form a family of structurally and functionally related peptide hormones. Their main representatives are oxytocin and vasopressin.
Vasopressin, antidiuretic hormone (ADH), arginine vasopressin (AVP) or argipressin (neurohypophyse hormone)
The posterior pituitary gland secretes antidiuretic hormone, also called vasopressin, and oxytocin.
Nonapeptide, ni aminosyrer m S-S, Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Arg-Gly
Fire receptorer: AVPR1A, AVPR1B eller AVPR3, AVPR2, GPCR
Corticotropin-releasing hormone (CRH), corticotropin-releasing factor (CRF) or corticoliberin (hormone and neurotransmitter)
Peptid med 41 aminosyrer
To receptorer: CRHR-1 og CRHR-2
Evolved ~500 million years ago
Urocortin belongs to the corticotropin-releasing factor (CRF) family that includes CRF, urotensin I, sauvagine, urocortin II and urocortin III.
Oxytocin, Oxt, OXT, “kram-hormonet”, “kærligheds-hormonet” eller “forelskelses-hormonet” “bonding-hormone” (hormone og neurotransmitter)
Nonapeptide, ni aminosyrer m S-S, Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2 Molekylær lighed med vasopressin
OXTR, GPCR
ANP eller ANF, atrial-natriuretic peptide (ANP), atrial natriuretic factor (ANF), atrial natriuretic hormone (ANH), Cardionatrine, Cardiodilatine (CDD) or atriopeptin
Protein, ANP is a 28-amino acid peptide with a 17-amino acid ring in the middle of the molecule. The ring is formed by a disulfide bond between two cysteine residues at positions 7 and 23. ANP is closely related to BNP (brain natriuretic peptide) and CNP (C-type natriuretic peptide), which all share a similar amino acid ring structure.
Tre receptorer guanylyl cyclase, guanylat cyclase A eller NPR-1, guanylat cyclase B eller NPR-2, guanylat cyclase C eller NPR-3, binding fører til dimerization og aktivering
BNP, Brain natriuretic peptide or B-type natriuretic peptide (BNP) (also ventricular natriuretic peptide)
Polypeptid, 32 aminosyrer
Receptor: guanylyl cyclase, NPR-1 (NPR-2) binding fører til dimerization og aktivering
Glucagon, pancreas (glucagon, insulin and somatostatin)
Peptid med 29 aminosyrer, 3485 Da
GPCR, G-protein coupled receptors from secretin receptor family.
Somatostatin, Growth hormone-inhibiting hormone, GHIH
Peptid m 14 eller 28 aminosyrer
5 kendte Somatostatin receptorer SSTR1-SSTR5, GPCR
Secretin
Peptide med 27 aminosyrer, 3055 Da
GPCR, class II G-protein coupled receptors from secretin receptor family.
Secretin familien: Glucagon/GIP/secretin/VIP hormones
GIP, gastroinhibitory peptide, gastric inhibitory polypepride, glucose-dependent insulinotropic peptide
Peptid med 42 aminosyrer
GPCR,class II G-protein coupled receptors from secretin receptor family.
Vasoactive intestinal peptide, Vasoactive intestinal polypeptide, VIP hormone (neuropeptide)
Peptide m 28 aminosyrer
GPCR, G-protein coupled receptors from secretin receptor family.
Calcitonin (regurlerer calcium og fosfor metabolism, modvirker parathyroid hormone, PTH )
32-amino acid linear polypeptide
Calcitonin receptor, GPCR
Gastrin
Peptide
gastrin-34 ("big gastrin") 34 aminosyrer
gastrin-17 ("little gastrin") 17 aminosyrer
gastrin-14 ("minigastrin") 14 aminosyrer
Gastrin is a peptide hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach and aids in gastric motility. It is released by G cells in the pyloric antrum of the stomach, duodenum, and the pancreas.
Gastrin binds to cholecystokinin B receptors to stimulate the release of histamines in enterochromaffin-like cells, and it induces the insertion of K+/H+ ATPase pumps into the apical membrane of parietal cells (which in turn increases H+ release into the stomach cavity). Its release is stimulated by peptides in the lumen of the stomach.
Gastrin receptor, cholecystokinin B receptors, GPCR
Cholecystokinin, CCK or CCK-PZ, pancreozymin – fordøjelse og mæthed.
a peptide hormone of the gastrointestinal system, har same 5 amino syrer I C-terminus som gastrin
GPCR CCKAR og GPRC CCKBR fælles receptor med gastrin
Parathyroid hormone, PTH, parathormone or parathyrin
Peptid m 34 aminosyrer
parathyroid hormone 1 receptor (PTH1R) member of the secretin family of G protein-coupled receptors. Parathyroid hormone 2 receptor, PTH2R , member of GPCR family 2 receptor