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Topic: Prosthetic group

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	[No title] (Site not responding. Last check: 2007-10-13)
		Prosthetic groups, such as heme, remain bound to the protein permanently.
		The heme group is bound to myoglobin or hemoglobin by hydrophobic forces.
		Oxidation of the heme group is prevented, in myoglobin, by the steric hindrance of the polypeptide framework.
	horizon.unc.edu /projects/monograph/cd/Professional_Schools/MoBy/31hrm.doc (1324 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		Conditional Availabilitv of a Prosthetic Group In one embodiment of the invention, one or more prosthetic groups are incorporated into a SELEX candidate mixture in such a way that their ability to interact with a cognate ligand changes upon the binding of a candidate aptamer to a target.
		In some embodiments, the prosthetic group is solvent-exposed only when the aptamer is bound to target; in other embodiments, the prosthetic group is exposed to solvent only when the aptamer is not bound to target.
		Thus, in general terms, the fluorogenic group acts as a prosthetic group that is modified in such a way that it cannot interact with its cognate ligand.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/09158.010208&ELEMENT_SET=DECL (6917 words)

	Electron Transfer Proteins 4
		It has been customary to assign the cytochromes to the groups a, b, and c according to the nature and mode of binding of the heme prosthetic group: group d was introduced by the IUB Enzyme Commission in 1961.
		Recommendations for the further classification within the four groups were issued in 1961 (ref 4), 1964 (ref 5), 1972 (ref 6), and 1978 (ref 7), and have helped to develop widely accepted designations for the various cytochromes.
		Group d diagnosed from the presence of four bands between 500-700 nm in the optical spectrum of the reduced heme; the assignment should be verified by preparation of the pyridine hemochrome (Table 1).
	www.chem.qmw.ac.uk /iubmb/etp/etp4.html (4179 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		A posttranslational modification does not include a naturally-occurring L-amino acid that is added to the amino group of the amino-terminus or added to the carboxylic acid of the carboxy-terminus of the display peptide or the protein fusion during the translation of the display peptide or protein fusion.
		During fatty acid synthesis, the free thiol group of the 4'-phosphopantetheine is modified by the attachment of a fatty acid or a component of a fatty acid.
		The free thiol group of the 4'-phosphopantetheine is typically modified by the attachment of an amino acid or amino acid analog.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=03/29409.030410&ELEMENT_SET=DECL (11329 words)

	Prosthetic limb - Hutchinson encyclopedia article about Prosthetic limb (Site not responding. Last check: 2007-10-13)
		Artificial device used to substitute for a body part which is defective or missing.
		The comparatively new field of bionics has developed myoelectric, or bionic, arms, which are electronically operated and worked by minute electrical impulses from body muscles.
		This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
	encyclopedia.farlex.com /Prosthetic+limb (159 words)

	Combination of proteins with prosthetic groups (from protein) -- Encyclopædia Britannica
		The link between a protein molecule and its prosthetic group is a covalent (electron-sharing) bond in the glycoproteins, the biliproteins, and some of the heme proteins.
		The group adopted its name on the occasion of a group exhibition held in 1920.
		Prosthetic devices include artificial hands, limbs, eyes, ears, and teeth, as well as replacement materials for the heart, kidneys, skin, and blood.
	www.britannica.com /eb/article-72565 (815 words)

	www.novozymes.com (Site not responding. Last check: 2007-10-13)
		This is possible by adding hemin or another material containing heme groups to a fermentation medium for growing microorganisms which overproduce the apoprotein of a heme protein, the heme group is bound to the protein whereby the apoprotein is activated and acquires a conformation in which it is more stable against proteolytic degradation.
		Hereby the heme group is bound to the protein whereby the apoprotein is activated and acquires a conformation in which it is more stable against proteolytic degradation.
		The heme or heme-containing material added to the medium to obtain recombination of the secreted apoprotein with the heme group may suitably be supplied by the addition of hemin or, preferably, hemoglobin or red blood cells as the heme group remains functional on heating, permitting autoclaving of media containing one of these substances.
	www.novozymes.com /cgi-bin/bvisapi.dll/science/science.jsp?cid=-8863&pid=9541&id=13478 (770 words)

	Pfam 19.0 : PP-binding (Site not responding. Last check: 2007-10-13)
		This prosthetic group acts as a a 'swinging arm' for the attachment of activated fatty acid and amino-acid groups.
		Phosphopantetheine (or pantetheine 4' phosphate) is the prosthetic group of acyl carrier proteins (ACP) in some multienzyme complexes where it serves as a 'swinging arm' for the attachment of activated fatty acid and amino-acid groups PUBMED:5321311.
		The Asp-Ser-Leu (DSL)motif is conserved in all of the ACP sequences, and the 4'-PP prosthetic group is covalently linkedvia a phosphodiester bond to the serine residue.
	pfam.wustl.edu /cgi-bin/getdesc?acc=PF00550 (218 words)

	Alteration of the Heme Prosthetic Group of Neuronal Nitric-Oxide Synthase during Inactivation by NG-Amino-L-arginine in ...
		Alteration of the Heme Prosthetic Group of nNOS by NAA.
		Ator MA, David SK and Ortiz de Montellano PR (1987) Structure and catalytic mechanism of horseradish peroxidase regiospecific meso alkylation of the prosthetic heme group by alkylhydrazines.
		Osawa Y and Pohl LR (1989) Covalent bonding of the prosthetic heme to protein: A potential mechanism for the suicide inactivation or activation of hemoproteins.
	molpharm.aspetjournals.org /cgi/content/full/62/1/110 (6406 words)

	Myoglobin and Hemoglobin
		The oxygen carried by hemeproteins is bound directly to the ferrous iron atom of the heme prosthetic group.
		Hydrophobic interactions between the tetrapyrrole ring and hydrophobic amino acid R groups on the interior of the cleft in the protein strongly stabilize the heme protein conjugate.
		In addition a nitrogen atom from a histidine R group located above the plane of the heme ring is coordinated with the iron atom further stabilizing the interaction between the heme and the protein.
	web.indstate.edu /thcme/mwking/hemoglobin-myoglobin.html (4119 words)

	Major Coenzymes
		A thioester is formed between the free SH group of the CoA and the acyl group.
		The structures of other prosthetic groups will be given below their reactions can be viewed in the text and will be discussed when the particular pathways that utilize them are presented.
		This group is involved in a number of reactions on amino acids that include isomerizations, decarboxylations and side chain eliminations and replacements.
	www.k-state.edu /bchem/courses/BIOCH521/f99/hortchap7.htm (2447 words)

	ATP Production: An Introduction
		Prosthetic groups of electron carriers shift between reduced and oxidized states as they accept and donate electrons.
		Heme group = Prosthetic group composed of four organic rings surrounding a single iron atom.
		Cytochromes = Type of protein molecule which contains a heme prosthetic group and which functions as an electron carrier in the electron transport chains of mitochondria and chloroplasts.
	home.earthlink.net /~dayvdanls/CampOLs/RespETS.html (1042 words)

	Outcomes - Amputee Anthropometrics: Reliability and Accuracy of Analog and CAD/CAM Measurement Devices \| American ...
		Prosthetic practice faces a growing need for outcome measures and evidence of the benefits of service.
		The most direct outcome measures in prosthetics might be associated with movement, such as walking velocity or success in activities of daily living (1).
		After the instrument accuracy was independently assessed, a group of prosthetic-orthotic practitioners and a group of prosthetic-orthotic students measured six common anthropometric dimensions on three foam positive models of transtibial amputee residual limbs.
	www.oandp.org /publications/jop/2005/2005-17.asp (1340 words)

	Learning Objectives for Protein Section
		prosthetic groups, coenzymes, metal ions, etc.) Note: all hydrophobic groups located in the interior are involved in hydrogen bonds or electrostatic interactions.
		Charge is +1 (the amine group is protonated, giving a positive charge and the carboxyl group will not be dissociated).
		Transferases – enzymes which transfer a functional group from one molecule to another; however, the a transferase enzyme is usually named for the group that is transferred (e.g.
	umed.med.utah.edu /MS1/biochem/study/learn_ob_protein2003.htm (3263 words)

	[No title]
		Program will accept - several polypeptide chains, - several cis peptides - any given prosthetic group (but only the Heme group is included in the present "dictionary") - solvent or water molecules Input and Output Files: NIN = 5 Input: Control cards, special distances, secondary structure designations for torsion angle restraints, non- crystallographic symmetry designations.
		The "group identifier card" is then followed by as many cards as necessary to contain the ND distance specifiers, (up to 8 on each card).
		For planes associated with a multiplanar prosthetic group, KIND should be unique starting with group # 43, and the actual group # (as on "name card") should be given in INBUF(14).
	www.csb.yale.edu /userguides/datamanip/phases/protin.html (2360 words)

	Covalently Linked Heme in Cytochrome P4504A Fatty Acid Hydroxylases -- Hoch and Ortiz de Montellano 276 (14): 11339 -- ...
		Prosthetic Group Isolation and Characterization-- Isolation of the prosthetic group was achieved by Pronase digestion of the heme-linked proteins.
		In this paper we demonstrate that the prosthetic heme group of the CYP4A family of proteins is covalently cross-linked to
		The second paradigm for the formation of covalently bound heme groups is provided by the mammalian peroxidases.
	www.jbc.org /cgi/content/full/276/14/11339 (5616 words)

	BCH 4053 Biochemistry I (Site not responding. Last check: 2007-10-13)
		The functionality of a particular protein may require the binding of a prosthetic group.
		The new amino terminal group (previously the second amino acid in the polypeptide chain) is now available for another round of reactions.
		Comparisons identified groups of organisms that were very similar to each other, and significantly different from other organisms.
	wine1.sb.fsu.edu /BCH4053/Lecture09/Lecture09.htm (1967 words)

	P
		Group of primates to which the great apes (e.g., chimpanzee, gorilla, orangutan) belong.
		Metal ions and a variety of organic molecules (e.g., vitamins, sugars, lipids) can serve as prosthetic groups.
		Prosthetic groups are usually bound covalently to their proteins.
	users.rcn.com /jkimball.ma.ultranet/BiologyPages/P/P.html (489 words)

	ARS \| Publication request: INDOLEACETIC ACID AS A PROTEIN PROSTHETIC GROUP IN PHASEOLUS VULGAR IS (Site not responding. Last check: 2007-10-13)
		Technical Abstract: A diverse number of prosthetic groups are known to be covalently attached to proteins as postranslational modifications.
		We have reported that a group of proteins with molecular masses of 17-60 kD exists in bean (Phaseolus vulgaris) that have a prosthetic group consisting of the phytohormone indole-3-acetic acid (IAA).
		Protein modification by IAA may present an additional mechanism for auxin induced protein turnover in planta and may explain other processes involved in growth and development.
	www.ars.usda.gov /research/publications/publications.htm?SEQ_NO_115=124699&pf=1 (284 words)

	ENZYMES - INTRODUCTION- partI
		A-9 Apo-enzyme is the protein part of an enzyme without any cofactors or prosthetic group that may be required for the enzyme to be functional.
		A-10 A non-protein component of an enzyme, which is required for catalytic activity, is known as co-enzyme or prosthetic group.
		in the cytochromes, the heme prosthetic group is very tightly bound and requires strong acids to dissociate from its apo enzyme.
	home.123india.com /nbsc/enz01.htm (1243 words)

	exam.1.99. (Site not responding. Last check: 2007-10-13)
		the names (not structures) of the cofactors, prosthetic group, and other non protein group or substance that participates in the reactions.
		the names of the cofactors, prosthetic group, and other non protein group or substance that participates in the reactions.
		For example, in one step in glycolysis, phosphofructokiinase catalyzes the transfer of a phosphate group from ATP to fructorse-6-phosphate to produce ADP and fructose-1,6-bisphosphate.In gluconeogenesis, the antithesis of glycolysis, the conversionof fructose-1,6-bisphosphate to fructose-6-phosphate is accomplished by a simple hydrolysis reaction catalyzed by the enzyme frucotse-1,6-bisphosphatase.
	opbs.okstate.edu /~leach/bioch5853/Examinations/exam.1.99.htm (1499 words)

	Bruce Palfey- Biological Chemistry
		In "classic" thymidylate synthases, the methylene group is reduced to the methyl oxidation level by the folate.
		However, the "new" thymidylate synthase apparently accomplishes this reduction by another mechanism, using an FAD prosthetic group and NAD(P)H as the source of reducing equivalents.
		Because the "new" thymidylate synthase occurs in a number of pathogens, it is an excellent drug target; because the "new" reaction involves a prosthetic group and an additional substrate, a novel mechanism reaction appears likely.
	www.biochem.med.umich.edu /biochem/research/profiles/palfey.html (1181 words)

	Biosynthesis of the Prosthetic Group of Citrate Lyase
		Biosynthesis of the Prosthetic Group of Citrate Lyase
		First, a prosthetic group precursor [presumably 2'-(5' '-triphosphoribosyl)-3'-dephospho-CoA] is formed from ATP and dephospho-CoA in a reaction catalyzed by CitG.
		Second, holo-ACP is formed from apo-ACP and the prosthetic group precursor in a reaction catalyzed by CitX.
	pubs.acs.org /cgi-bin/abstract.cgi/bichaw/2000/39/i31/abs/bi000401r.html (342 words)

	VGM - History
		VGM Group Services was formed in 1998 and has a network of independent home medical equipment, respiratory, Orthotic and prosthetic, pharmacy dealers across Canada.
		In January of 1997, the new VGM Group corporate headquarters was completed in south Waterloo, Iowa.
		Van G. Miller and Associates, known as The VGM Group, comprises more than a dozen companies, the majority of which are related to the home health care industry.
	www.vgm.com /AboutVGM/history.asp (554 words)

	AllRefer.com - prosthetic group (Biochemistry) - Encyclopedia
		You are here : AllRefer.com > Reference > Encyclopedia > Biochemistry > prosthetic group
		prosthetic group, non-amino acid portions of certain protein molecules.
		The key part of the prosthetic group may be either organic (such as a vitamin) or inorganic (such as a metal) and is usually required for biological activity, especially when the prosthetic group is complexed with an enzyme.
	reference.allrefer.com /encyclopedia/P/prosthet.html (148 words)

	PPS '97 - Quaternary Structure: Multienzyme Complexes
		This involves the prosthetic group thiamine pyrophosphate, or TPP.
		It is for this reason that the interaction rate is increased by proximity of all three enzymes, and in fact the lipoamide group is a long flexible arm about 14Å long.
		The movement of the arm may be driven by a change in the net charge of the lipoyl group, depending on the ionization of the sulphydryl groups.
	www.cryst.bbk.ac.uk /pps97/course/section11/complexes.html (808 words)

	Protein Lecture 1
		The prosthetic group can be an organic or
		grouped according to the polarity and charge of
		group appears to be relatively nonpolar, the N- H group of indole is polar and can H-bond.
	www.chem.uic.edu /chem452/ProLec1.html (217 words)

	Amino Acid Catabolism - N
		This permits synthesis of non-essential amino acids, using amino groups derived from other amino acids and carbon skeletons synthesized in the cell.
		The prosthetic group of the transaminase enzyme is
		Several other enzymes that catalyze metabolism or synthesis of amino acids also utilize PLP as prosthetic group, and have mechanisms involving a Schiff base linkage of the amino group to PLP.
	www.rpi.edu /dept/bcbp/yesterday/molbiochem/MBWeb/mb2/part1/amino.htm (1000 words)

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