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I n t currently labeled for use as monotherapy in HCV infection at a dose of 1.0 mg kg, but the approved dose for use in combination with rib avirin is 1.5 mg kg. Lindsay and colleagues studied three doses of Peg-Intron : 0.5, 1.0 and 1.5 mg kg as monotherapy that is, without ribavirin ; . Efficacy, discontinuations and dose reductions were roughly equivalent for the two higher doses, supporting approval of the 1.0 mg kg dose for use as monotherapy. Relapse rates, however, especially in genotype 1, were high at both 1.0 and 1.5 g kg. ; At this year's Digestive Disease Week Meeting, Flamm and colleagues presented interim data from their HCV treatment trial, which compares response rates to 1.0 mg kg or 1.5 mg kg of PegIntron plus 8001, 400 mg day of ribavirin. They reported that virologic responses and discontinuations at week 24 did not differ significantly between the two PegIntron doses, but the relative success of the 1.0 g kg Peg-Intron dose will ultimately be determined by sustained virologic response rates, which are not yet available. The Case for 1.5 While 1.0 mg kg of Peg-Intron may be equally effective as and less toxic than 1.5 g kg, data from a small pharmacokinetic study suggests that the lower dose may be suboptimal. Formann and colleagues examined the relationship of Peg-Intron levels in the bloodstream and hepatitis C viral load among 20 people with HCV1. Participants were randomized to receive 1.0 mg kg of Peg-Intron once or twice weekly. In the twiceweekly dosing group, Peg-Intron was consistently present at -- continued on page 4. Reaction conditions. Activation of the catalysts at 400 oC in air; IBB: Acylating agent 1: 2; IBB taken 10 mmol, Cat used Ce-Beta; Cat. Weight 0.5 g. Temperature 120oC; Pressure 1 atm; Solvent; Nitrobenzene 10 ml. In subacute safety studies butorphanol was injected subcutaneously to each of six cats at dosages of 0 saline ; , 4, 2 or 0 mg kg, every six hours for six days and continued once daily for a total of 21 days.
The nectar-laved glance of Guru Angad Ennobles man. It destroys all sins and vice, Lust, wrath, greed, and attachment are subdued By its great power; Abiding felicity fills the heart of the Guru; He destroys the sorrows And sufferings of the world. The Guru is the treasure of all treasures; He is the river that washes the dross of life. So Bard Kal says: Serve ye the Guru day and night With tender loving. In association with the Guru His transmuting touch will destroy The pangs of ceaseless births and deaths.

1965. 203. CARR, E. A., JR., BEIERwALTES, WI. H. AND SPAFFORD, N. R. : The uptake of tn iodothyronine by erythrocytes in pregnancy complicated by thyrotoxicosis. Univ. Mich. Med. Bull. 26: 117, 1960. NICOLOFF, J. T., NICOLOFF, R. AND DOWLING, J. T. : Evaluaton of vaginal smear. GlcCerase CBE structure, N396 and F397 are positioned such that access to the active site is not restricted Fig. 6a ; . However, in the other alternative conformation, which is displayed only in the native GlcCerase structure, the side-chains of N396 and F397 swing over and block the entrance to the active site Fig. 6b ; , suggesting that this loop serves as a lid regulating access to the active site in GlcCerase. Thus, these two loops allow GlcCerase to exist in either an open Fig. 6a ; or closed Fig. 6b ; conformation, depending on the orientation of the loops. The movies in supplementary Figs. 1 and 2 illustrate the dynamics of the movement of these two loops. Analysis of the distribution of mutant forms of GlcCerase that cause Gaucher disease reveal a cluster of mutations in loop 2, including V394L 2 ; , R395P 20 ; , N396T 21 ; , V398L F 22, 23 ; and D399N 24 ; . In silico analysis of these mutants is consistent with either destabilization of the open conformation or stabilization of the closed conformation Table 3 ; , thus limiting substrate access to the active site. For instance, V394L, one of the six most common mutations 2 ; , results in enhanced hydrophobic interactions of L394 with W393 and F246 in the closed conformation; conversely, this same mutation destabilizes the open conformation since the larger side chain cannot interact with the aromatic side chains of W393 and F246. Likewise, R395P destabilizes the open conformation due to the loss of a stabilizing salt bridge with E388. N396T results in additional hydrogen-bonding between T396 and the carbonyl oxygens of residues E388 and G389 in the closed conformation, but in reduced H-bonding with D127 in the open conformation. Thus, the structure of GlcCerase complexed to CBE gives insight into the mechanism by which catalytic activity is reduced by mutations in this newly-identified lid that controls access to the active site. DISCUSSION In the current study we have solved the X-ray structure of GlcCerase covalently bound to CBE. Using this structure, we confirmed earlier assignments, based on electrospray tandem mass spectrometry, that E340 is the nucleophile and E235 is the acid base catalyst 25 ; . Since catalytic activity was completely inhibited by binding of the cyclohexitol to E340, and since we saw no binding and byetta.

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Carefully clean the injection spot with an alcohol pad. Allow the spot to air- dry. Remove the needle cap from the syringe. Hold the syringe in one hand. Use your other hand to gently grasp a fold of skin for your injection. Hold the skin between your thumb and index finger. Hold the syringe at a right angle to the skin, like a dart. Quickly insert the needle all the way into the skin fold.

Adjust a presbyopia-correcting IOL following removal of a cataract that exceed the physician charges for services and supplies for the insertion and adjustment of a conventional IOL. There is no Medicare benefit category that allows payment of physician charges for subsequent treatments, services and supplies required to examine and monitor a beneficiary following removal of a cataract with insertion of a presbyopiacorrecting IOL that exceed the physician charges for services and supplies to examine and monitor a beneficiary following removal of a cataract with insertion of a conventional IOL and campral. In July 1988, Rh ne-Poulenc Equity Finance BV 100% owned by Aventis ; issued at par through a private o placement, securities with a total nominal value of U.S. $ 1, 200 million in exchange for cash proceeds of U.S. $ 891 million excluding issuance costs of U.S. $ 18 million ; . These securities, unconditionally guaranteed by Aventis, have no stated due date or maturity, and the Group has no obligation to redeem these securities except in the limited circumstances described below. For the first 15 years, periodic payments are made in the form of interest at a rate slightly higher than LIBOR, computed based on the par value of the securities. Thereafter, the holders have the right to periodic payments made at a nominal rate in perpetuity. However, should the Group at any time determine that the payment of interest in cash on the securities would imperil its financial condition, it may satisfy the interest payment obligation by the issuance of payment securities in the amount of the interest due. Such payment securities would also have no stated due date or maturity and would be issued on terms similar to the principal securities but with a higher interest rate. In the case of reorganization or liquidation of the company, these securities will be subordinated in right of payment to the complete payment of the claims of creditors of the company, excluding, however, claims of holders of any perpetually subordinated indebtedness and claims which are subordinated in right of payment so as to rank pari passu with, or junior to, claims in respect of the securities. If a dividend is paid to any shareholder of the Group excluding participating shareholders ; , when any securities issued in lieu of interest are outstanding, such interest securities shall be paid within 60 days, and upon default of such payment, all securities shall become due and redeemable. Upon issuance of these securities, an independent trust was established. This trust, which is legally protected from invasion by the Group, has invested in zero coupon notes. At the end of 15 years, the holders of the securities have the option to exchange their securities for the assets in the trust. The Group will have the right, but not the obligation, to purchase these securities from the trust at their then nominal fair market value. The Group has determined that these securities are in substance equivalent to equity instruments. However, in accordance with the SEC rules requiring presentation of temporary equity apart from stockholders' equity, the Group has classified the proceeds of the issue outside stockholders' equity under the caption ``Amortizable preferred securities''. The payments made in 2000 were 6.96667% for the first six months, and 7.50000% for the second half of the year 7.17969% and 6.45875% respectively in 1999 ; . As stated in note 1k, the semi-annual payments indexed as LIBOR were partly hedged for interest rate changes and the preferred remuneration has been hedged for exchange rate changes. The principal amount has not been specifically hedged, but is managed within the global exchange rate exposure of the Group. As a result, the exchange rate gains or losses from translation of the principal at each year end 2000: 4 23 million loss; 1999: 4 49 million loss; 1998: 4 22 million gain ; are offset by exchange gains or losses on foreign rates hedging instruments.

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This study evaluated the efficacy of carprofen, meloxicam, etodolac, and butorphanol for the alleviation of pain in dogs related to acute induced synovitis of the right stifle. A welldocumented study technique, intraarticular injection of monosodium urate solution produces acute inflammation and moderate to severe joint pain for approximately 24 hours. Treatment efficacy was evaluated using a combination of force plate analysis and 3-part orthopedic evaluations, including swelling, pain on palpation, and weight bearing. All three NSAIDs had overall better efficacy than butorphanol. Carprofen and etodolac had early onset of efficacy compared to meloxicam, consistent with their pharmacokinetics. Carprofen had the earliest decrease in pain as measured by pain scoring, while etodolac had the lowest amount of swelling 6 hours after injection. Consistent with the early decrease in pain, carprofen also was associated with the overall best efficacy related to weightbearing on the injected limb. Practitioners should recognize that if this model predicts efficacy for osteoarthritis pain as reported, then carprofen is most effective overall with its rapid onset and alleviation of pain, abnormal weight bearing, and swelling. -- James S. Gaynor, DVM, MS, Diplomate ACVA, Medical Director and President, Animal Emergency Care Centers, Inc and camptosar.
Children are not just small adults. They cannot always tell us what is bothering them. They cannot always answer medical questions. They are not always able to be patient and cooperative during a medical examination. Determinado aps 24 h de incubao em soluo tampo, contendo eugenol. Concentraes de 100, 300 e 500 g mL-1 de eugenol promoveram a inibio do crescimento de L. monocytogenes e, em concentraes acima de 800 g mL-1, constatou-se um efeito bactericida. O crescimento de L. monocytogenes na presena de eugenol resultou na inibio de 80 a 100% da produo de LLO. O efluxo de K + promovido pelo eugenol indicou que a membrana celular foi afetada. Estes resultados indicam a efetividade do eugenol para o controle do crescimento e da produo de LLO por L. monocytogenes and capecitabine.
Reported in horse [22], cattle and sheep [23]. However, such study has not yet been published in dogs. The purpose of this study was to investigate and compare the reversal effects of three different doses of atipamezole, and a single dose of yohimbine on stressrelated hormonal and metabolic responses following medetomidine administration in dogs. Other analgesics have endocrine and metabolic effects also [24, 25]. Because analgesics act on similar receptor systems than the physiological stress-response there are certain analogy between the endocrine effects of analgesics and stress-response. The purpose of anaesthesia is to induce optimal painless condition and attenuate stressresponse in the majority of cases for veterinary anaesthesia. However, critically ill patients sometimes need sympathetic support and suppressing their otherwise insufficient endocrine stress-response by some analgesics can be disadvantageous [26]. Proper management of the endocrine status is crucial for the surgical patient, therefore examination of the endocrine effects of different analgesics and anaesthetics are in the focus of many recent research projects. For this purpose we compared the neurohormonal and metabolic effects of opioid drugs butorphanol and fentanyl ; and ketamine. Alpha-2 adrenoceptor agonists are often used in combination with opioids to produce sedation, analgesia and balanced anaesthesia for different species [27-30]. Such a combination is advantageous because the sedative and analgesic effects are more than additive between these drugs [31-33]. This can be explained with the synergistic interaction in antinociception between the 2-adrenoceptors and the opioid receptors in the spinal cord [34]. Especially the medetomidine-butorphanol combinations became widely used in the canine practice because of their few side effects [35, 36]. In contrast, fentanyl is rarely used in combination with medetomidine because of the profound.

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Papilledema, convulsion and ophthalmoplegia each being 26.7% ; , spastic weakness of limbs 20% ; , hearing loss 13.3% ; and epidural abscess 6.7% ; . Meningoencephalitis 50% ; , meningitis 40% ; and cranial nerve palsies 26% ; were the most common clinical presentations. The less common manifesttations were meningism, raised ICP, pyramidal syndrome and cord compression Table 3 ; . Paraclinical data had also been similar in both groups. Two of our cases with neurobrucellosis had negative blood culture and also negative agglutinin test in the blood and CSF samples, in whom diagnosis was made by CSF culture. Brucella melitensis was the causative agent in all of positive cultures. Decreased volume of lateral ventricles due to brain swelling 2 15 ; , hydrocephalus induced by basilar arachnoiditis and meningeal inflammation enhancement with gadolinium ; 1 5 ; , small multiple hypodense lesions either demyelinative or ischemic 1 15 ; and spinal epidural abscess 1 5 ; were found in MRI of patients with neurobrucellosis. Weighed 11 to 13 the initiation of treatment. Dogs were housed in individual runs in an AAALAC accredited vivarium. Water and food Certified Teklad 25% Lab Dog Diet, Harlan Teklad, Madison, WI ; were provided except during food fasting periods prior to surgery. Intrathecal Catheter Placement To permit continuous infusion in the intrathecal space, test articles were delivered by a chronically placed intrathecal catheter. After receipt in the facility, animals underwent a five to seven day acclimation period and prophylactic treatment with sulfamethoxazole trimethoprim tablets 1523 mg kg, po twice daily, 480 mg tablet from day 5 to day 1 ; . On day 3, after an overnight fast, animals were anesthetized with atropine 0.4 mg kg, im ; followed by xylazine 1.5 mg kg, im ; . After intubation, animals were maintained by spontaneous ventilation under 12% isoflurane and 60% N 2O 40% O 2. Oxygen saturation, inspired and end tidal values of gas, CO 2, N 2O, and O 2, and heart and respiratory rates were continuously monitored. Surgical areas were shaved, surgically prepared and the animal was placed in a stereotaxic headholder and draped. Safety animals. To catheterize the intrathecal space, a midline incision was made on the dorsal head extending 1 cm rostral from the occiput to C 1 and the muscles retracted to expose the cisternal membrane. A cisternal CSF sample was then taken by puncture of the cisternal membrane with a 23G needle for clinical chemistries. A small opening was then made in the cisternal membrane to access the intrathecal space. The PE10 intrathecal dosing catheter, previously e-beam irradiated, was then inserted through the opening and passed approximately 43 cm to the lumbar enlargement. Placement in the intrathecal space was determined by sampling lumbar CSF from the catheter and confirmation at necropsy. After catheter placement, dexamethasone sodium phosphate 0.25 mg kg, im ; was given. The externalized end of the catheter was plugged and passed subcutaneously with a trocar to exit the left scapular region. The muscle and skin were sutured. Anesthetic gases were then turned off and the animal was monitored during recovery. Butorphanol tartrate Torbugesic 0.04 mg kg, im ; was administered to relieve postoperative pain. The surgery required approximately 1 h to complete. Following recovery, a nylon vest Alice King Chatham Medical Arts, Hawthorne, CA ; was replaced on the animals animals having been previously acclimated to the vest prior to surgery ; and an infusion pump placed in the vest pocket where it was connected to the externalized end of the intrathecal catheter. The intrathecal catheter was continuously infused until initiation of test article treatment with 0.9% w v ; sodium chloride for injection, USP saline ; , at approximately 100 l h. Pharmacokinetic animals. For placement of two intrathecal catheters dosing and sampling ; , a midline incision was made on the dorsal head extending 1 cm rostral from the occiput to C 1 and the muscles retracted to expose the cisternal membrane. A small opening was then made in the cisternal membrane to access the intrathecal space. The PE50 intrathecal sampling catheter was then inserted through the opening and passed approximately 40 cm. The PE10 intrathecal dosing catheter was then inserted through an adjacent opening and passed approximately 43 cm to the lumbar enlargement. Lumbar CSF was then sampled from both catheters to confirm placement in the intrathecal space. The externalized ends of the catheters were plugged and passed subcutaneously with a trocar to exit the left and right scapular regions respectively. The muscle and skin were sutured with 3-0 VicrylTM. Anesthetic gases were turned off and the animal was monitored during recovery. Butorphanol tartrate Torbugesic 0.04 mg kg, im ; was administered to relieve postoperative pain. The surgery required approximately 1.5 h to complete. Following recovery, a nylon vest was replaced on the animals animals having been previously acclimated to the vest prior to surgery ; and an infusion pump placed in each of the vest pockets where they were connected to the externalized ends of the intrathecal catheters. The intrathecal catheters were continuously infused until initiation of test article treatment with 0.9% w v ; sodium chloride for injection, USP saline ; , at approximately 100 l h. For and carbachol.

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Sition in a population-based cohort of women. J Clin Endocrinol Metab 84: 4025 4030 Santoro N, Rosenburg Brown J, Adel T, Skurnick JH 1996 Characterization of reproductive hormonal dynamics in the perimenopause. J Clin Endocrinol Metab 81: 14951501 Reyes FI, Winter JSD, Faiman C 1977 Pituitary ovarian relationships preceding the menopause: a cross-sectional study serum follicle stimulating hormone and luteinizing hormone, prolactin, estradio and progesterone levels. J Obstet Gynecol 129: 557564 Ballinger CB, Browning NC, Smith AHW 1987 Hormone profiles and psychological symptoms in perimenopausal women. Maturitas 9: 235251 Reame NE, Kelch RP, Beitins IZ, Yu M, Zawacki CM, Padmanabhan V 1996 Age effects on follicle-stimulating hormone and pulsatile luteinizing hormone secretion across the menstrual cycle of premenopausal women. J Clin Endocrinol Metab 81: 15121518 Brown JB, Harrisson P, Smith MA 1985 Return of fertility after childbirth and during lactation and changes in the climacteric. J Biosoc Sci 17 Suppl 9 ; : 527 Rannevik G, Jeppsson S, Johnell O, Bjerre B, Laurell-Borulf Y, Svanberg L 1995 A longitudinal study of the perimenopausal transition: altered profiles of steroid and pituitary hormones, SHBG and bone mineral density. Maturitas 21: 103113 Metcalf MG 1979 Incidence of ovulatory cycles in women approaching the menopause. J Biosoc Sci 11: 39 48 Metcalf MG, MacKenzie JA 1985 Menstrual cycle and exposure to estrogens unopposed by progesterone: relevance to studies on breast cancer incidence. J Endocrinol 104: 137141 Lee SJ, Lenton EA, Sextron L, Cooke ID 1988 The effect of age on the cyclical patterns of plasma LH, FSH, oestradiol and progesterone. Hum Reprod 3: 851 855 Sauer MV, Miles RA, Dahmoush L, Paulson RJ, Press MF, Moyer DL 1993 Evaluating the effect of age on endometrial responsiveness to hormone replacement therapy: a histologic ultrasonographic and tissue receptor analysis. J Assist Reprod Genet 10: 4752 Noci I, Borri P, Scarselli G, Chieffi O, Bucciantini S, Biagiotti R, Paglierani M, Moncini D, Taddei G 1996 Morphological and functional aspects of the endometrium of asymptomatic post-menopausal women: does the endometrium really age? Hum Reprod 11: 2246 2250 Leone M, Costantini C, Gallo G, Voci A, Massajoli M, Messeni Leone M, de Cecco L 1993 Role of growth factors in the human endometrium during aging. Maturitas 16: 3138 Palmieri D, Watson JM, Rinehart CA 1999 Age-related expression of PEDF EPC-1 in human endometrial stromal fibroblasts: implications for interactive senescence. Exp Cell Res 247: 142147 Koshiyama M, Yoshida M, Takemura M, Yura Y, Matsushita K, Hayashi M, Tauchi K, Konishi I, Mori T 1996 Immunohistochemical analysis of distribution of estrogen and progesterone receptors in the postmenoapausal endometrium. Acta Obstet Gynecol Scand 75: 702706 Ali IU 2000 Gatekeeper for endometrium: the PTEN tunor suppressor gene. J Natl Cancer Inst 92: 861 863 Mutter GL, Ince TA, Baak JPA, Kust GA, Zhou XP, Eng C 2001 Molecular identification of latent precancers in histologically normal endometrium. Cancer Res 61: 4311 4314 Mutter GL, Lin MC, Fitzgerald JT, Kum JB, Baak JP, Lees JA, Weng LP, Eng C 2000 Altered PTEN expression as a diagnostic marker for the earliest endometrial precancers. J Natl Cancer Inst 92: 924 930 Maxwell GL, Risinger JI, Gumbs C, Shaw H, Bentley RC, Barrett JC, Berchuck A, Futreal PA 1998 Mutation of the PTEN tumor suppressor gene in endometrial hyperplasia. Cancer Res 58: 2500 2503 Yoshida A, Harada T, Kitazawa T, Yoshida T, Kinoshita M, Maita K 1996 Effects of age on endometrial carcinogenesis induced by concurrent oral administration of ethylenethiourea and sodium nitrite in mice. Exp Toxicol Pathol 48: 289 298 and butorphanol.

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The recalls noted here reflect actions taken by a firm to remove a product from the market. Recalls may be conducted on a firm's own initiative, by FDA request or by FDA order under statutory authority. A Class I recall is a situation in which there is a probability that the use of or exposure to the product will cause serious adverse health consequences or death. Class II recalls may cause temporary or medically reversible adverse health consequences. A Class III situation is not likely to cause adverse health effects. If you have any of the drugs noted here, label them "Do Not Use" and put them in a secure place until you can return them to the place of purchase for a full refund. You can also contact the manufacturer. If you want to report an adverse drug reaction to the FDA, call 800 ; FDA-1088. The FDA Web site is fda.gov. Name of Drug or Supplement; Class of Recall; Problem Agua De Alibour zinc sulfate and copper sulfate ; Astringent-Antiseptic liquid, OTC; b ; Alcohol Boricado Boric Acid Alcohol ; liquid, OTC; c ; Alcohol Mentolado Mentholated Alcohol ; liquid, OTC; d ; Tincture of Arnica liquid, OTC; e ; Boric Acid Powder NF Topical Antifungal Agent, OTC; f ; Eucalyptus Oil Aromatic NF liquid, OTC; g ; Sodium Bicarbonate USP powder, OTC; Class III, Misbranding. a ; Alcohol-free "Baby Wipe"; b ; Triad "Cleansing Wipes", Class III, Mold contamination. Butorphanol Tartrate Nasal Spray, 10 mg mL, a schedule C-IV narcotic analgesic, Class III, Degradation products. Lot #; Quantity and Distribution; Manufacturer All lots; 25, 682 cases distributed nationwide; Lex, Inc, Medley, FL and carbenicillin.

Voters have approved every medical marijuana initiative that has appeared on state ballots. Likewise, American public opinion has consistently favored access to medical marijuana by seriously ill patients. ProCon , a nonprofit and nonpartisan public education foundation, has identified 21 national public opinion polls that asked questions about medical marijuana from 1995 to the present. Respondents in every poll were in favor of medical marijuana by substantial margins, ranging from 60% to 80%.48 The Journal of the American Medical Association analyzed public opinion on the War on Drugs in a 1998 article. The authors' observations concerning public attitudes toward medical marijuana remain true today. And for p 0.05, meana - meanb ; 1.96 x 0.0528 0.103, or 10.3%. A10.3% fall in cholesterol from 6.9 mmol L is 0.103 x 6.9 0.71 mmol L therefore, a fall in serum cholesterol from 6.9 to 5.9 mmol L is statistically significant at p 0.05. It is incorrect to calculate for p 0.05 the value of meana - meanb from 2.77 x 0.0528 which gives 0.148 ; , and conclude that the 14.5% fall in cholesterol was not quite statistically significant, as was reported in ACB News March 2005, pp8-9 and carboplatin.

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Updated HAS Classification System: Three Classes In light of new data, the original system of two HAS classes 7 ; needs to be revised Table 1 ; . We propose to maintain all integral membrane HAS proteins with a single GT2 module in Class I, but further subdivide these into Class I-R reducing end polymerization; e.g. Streptococcus, mouse, and human HASs ; and Class I-N nonreducing end polymerization; e.g. XlHAS1 ; . Another reason to keep the original Class I is that these HASs appear to both catalyze sugar transfer and facilitate HA transfer across the membrane. We anticipate that initial assignments of some members to the Class I-N or Class I-R group will require more experimental confirmation and may change with future studies. The very distinct PmHAS remains the only known Class II HAS. Models of HAS Architecture No three-dimensional structure is available for any HAS, but models for HAS architecture, function, and mechanisms of catalysis have been discussed supplemental Fig. 1 and 2 ; 79, 28, 48, ; . Two types of putative functional domains, termed Domains A and B, were proposed to be present in many -glycosyltransferases that use nucleoside diphosphosugars as donors 54 ; . Processive enzymes, which add many sugars without releasing their polymer chain, possess both Domains A and B, whereas enzymes that add a single sugar usually have only Domain A. Class I-R and Class I-N HASs do not release their growing chains during synthesis and possess both putative Domains A and B. Class II PmHAS possesses two tandem copies of Domain A and no Domain B 38 ; . Studies of SeHAS have provided insight into the molecular organization of Class I HASs 55, 56 ; . Four cysteine residues, conserved in the Class I family, are clustered very close together at the inner surface of the membrane and are close to or within UDP-sugar-binding sites 56 ; . These results indicate that HAS active site s ; are at the membrane-protein junction and support the "Pore Hypothesis" for HA synthesis 25 ; . supplemental Fig. 2 shows the first experimentally based model for the organization and nearest neighbors of the six MDs of SeHAS 55 ; that create this putative pore. Kinetic analyses of Class II PmHAS and its mutants show that two relatively independent active sites with separate UDPsugar-binding sites one each in Domains A1 and A2 ; exist in one protein 38, 57 ; . A pair of PmHAS variants, one disrupted at Domain A1 and the other at Domain A2, acted together to and carmustine.

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