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Kundu AK. Herpes zoster-induced myocarditis in a patient with diabetes mellitus. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2001; 49:286-7. [PMID: 11225150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Myocarditis as a complication of herpes zoster is very rare. I present the case of a middle-aged adult male with diabetes mellitus complicated by myocarditis following herpes zoster infection, the second reported case in Indian literature so far.
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Kundu AK, Ohshima K, Sako N, Yaegashi H. Cross-reactive and major virus-specific epitopes are located at the N-terminal halves of the cylindrical inclusion proteins of turnip mosaic and zucchini yellow mosaic potyviruses. Arch Virol 2000; 145:1437-47. [PMID: 10963347 DOI: 10.1007/s007050070100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
To investigate the antigenic nature of cylindrical inclusion proteins (CIPs) of the potyviruses Turnip mosaic virus (TuMV) and Zucchini yellow mosaic virus (ZYMV), monoclonal antibodies (MAbs) against the two CIPs were produced and epitopes on the CIPs were localized using Escherichia coli-expressed CIP fragments in Western blot analysis. All 23 MAbs against ZYMV CIP reacted only with ZYMV CIP. In contrast out of the 18 MAbs produced against TuMV CIP, 14 MAbs were TuMV CIP-specific while the remaining four MAbs cross-reacted with both CIPs. The four cross-reactive MAbs recognized two distinct epitopes in the N-terminal half of TuMV CIP corresponding to amino acid residues 103-119 and 224-237. Thirteen out of 14 TuMV CIP-specific MAbs recognized two distinct epitopes within residues 1-102 and 120-214, while the other one recognized an epitope within residues 301-644. On the other hand, 21 out of 23 ZYMV CIP-specific MAbs recognized epitopes within residues 1-118, while the remaining two recognized epitopes within residues 301-522. These results suggest that cross-reactive and major virus-specific epitopes are located at the N-terminal half of the respective CIPs.
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Kundu AK. Norfloxacin-induced hallucination--an unusual CNS toxicity of 4-fluoroquinolones. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2000; 48:944. [PMID: 11198813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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54
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Kundu SS, Kundu AK, Pal NK. Interferon-alpha in the treatment of acute prolonged hepatitis B virus infection. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2000; 48:671-3. [PMID: 11273498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
OBJECTIVE Acute hepatitis B virus (HBV) infection is a self-limiting disease which usually recovers within 4-12 weeks. At the present moment, there is no specific treatment of acute HBV infection. This study investigates the efficacy of interferon-alpha (IFN) therapy in acute prolonged HBV infection to prevent its progression into chronic stage. METHODS We enrolled a total number of 54 patients for the study in the span of 8 years. Group A patients (n = 20) received IFN-alpha 5 million units (MU) subcutaneously (s.c.) thrice a week for 12 weeks and Group B patients (n = 34) were placed on placebo therapy as control for 12 weeks, with a follow-up for one year. RESULTS Seroconversion (disappearance of HBsAg, HBeAg, serum HBV DNA and appearance of anti-HBe) in Group A occurred in 16 patients (80%) within 24 weeks of illness, whereas in Group B seroconversion was observed only in 18 patients (53%) within 24 weeks. During follow-up upto one year, two more patients showed seroconversion in Group A but none in Group B. While on treatment no casualty was reported in Group A but one patient died of hepatic coma in Group B. Our observation revealed that in acute prolonged (> 12 weeks but < 24 weeks) hepatitis B, spontaneous seroconversion rate was 53% but with moderate dose of IFN therapy (5 MU, s.c., thrice weekly) from 12 weeks onwards, the seroconversion rate came out to be 80% (upto 24 weeks) which increased upto 90% when followed-up for one year. CONCLUSIONS IFN-alpha treatment in acute prolonged (> 12 weeks) HBV infection is safe and may prevent its progression to the chronic stage.
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Kundu SS, Kundu AK, Pal NK. Primary non-Hodgkin's lymphoma of the larynx presenting with protracted cough. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2000; 48:748-9. [PMID: 11273518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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56
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Kundu AK. Ciprofloxacin-induced severe cutaneous reaction and haemolysis in a young adult. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2000; 48:649-50. [PMID: 11273551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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57
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Kundu AK. Impaired fasting glucose (IFG) versus impaired glucose tolerance (IGT): the present scenario. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2000; 48:551-2. [PMID: 11273166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
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58
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Kundu AK. High altitude koilonychia developing as a result of cold environment and hypoxia--a fact or a myth? THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2000; 48:457-8. [PMID: 11273196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
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59
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Sarkar RN, Banerjee S, Kundu AK, Singh AK. Primary hypertrophic osteoarthropathy. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 1999; 47:1106-7. [PMID: 10862323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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60
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Kundu AK. Correlation between clubbing and exophthalmos and/or pretibial myxoedema in Graves disease. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 1999; 47:462. [PMID: 10778547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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61
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Kundu AK. Digital index--a new way of numerical assessment of clubbing. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 1999; 47:462. [PMID: 10778548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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62
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Kundu AK, Ohshima K, Sako N, Yaegashi H. Nucleotide sequences of the cylindrical inclusion protein genes of two Japanese zucchini yellow mosaic virus isolates. Acta Virol 1999; 43:57-62. [PMID: 10672346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
The nucleotide sequences of the cylindrical inclusion protein (CIP) genes of two Japanese zucchini yellow mosaic virus (ZYMV) isolates (ZYMV-169 and ZYMV-M) were determined. The CIP genes of both isolates comprised 1902 nucleotides and encoded 634 amino acids containing consensus nucleotide binding motif. The sequence similarities between the two isolates at the nucleotide and amino acid levels were 91% and 98%, respectively. When the CIP gene sequences of the Japanese ZYMV isolates were compared with those of previously reported ZYMV isolates, the nucleotide and amino acid sequence similarities ranged between 81% and 97%, and between 95% and 97%, respectively. Phylogenetic analysis of the deduced amino acid sequences of the CIP genes indicated that the Japanese ZYMV isolates were closely related to those of other ZYMV isolates.
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63
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Kundu AK. Eradication of Helicobacter pylori. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1998; 96:349-50. [PMID: 10218323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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64
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Kundu AK. Pregnancy related cerebral venous thrombosis needs exclusion of antiphospholipid syndrome. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 1998; 46:748. [PMID: 11229298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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65
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Kundu AK, Ohshima K, Sako N. Comparison of coat protein epitopes of two zucchini yellow mosaic virus isolates. Acta Virol 1998; 42:167-73. [PMID: 9842446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Serological differences between two zucchini yellow mosaic virus (ZYMV) isolates (ZYMV-169 and ZYMV-M) obtained from two distinct geographical locations in Japan were determined by mapping epitopes on the coat proteins (CPs) of the two isolates. A total of 45 monoclonal antibodies (MAbs) against the two isolates were produced and the epitopes on the CPs were delineated by reacting these MAbs with trypsin-treated ZYMV particles and Escherichia coli-expressed ZYMV CP fragments. Six MAbs of groups I-a and I-b, specific for ZYMV-169, recognised two epitopes in the N-terminal region at amino acids (aa) 1-28 and 6-41 of ZYMV-169 CP. Fourteen MAbs of group II, specific for ZYMV-M, recognised epitopes in the N-terminal region of ZYMV-M CP. Twenty-one MAbs of groups III-a, III-b(i), III-b(ii), and III-b(iii), reacting with both isolates, recognised four epitopes; one epitope was located in the N-terminal region at aa 6-28 and the remaining three epitopes were located in the core region at aa 42-95, 171-227 and 228-259 of ZYMV CPs.
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Kundu AK. Antiphospholipid syndrome--a distinct clinical entity. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1998; 96:23-4, 28. [PMID: 9601188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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67
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Kundu AK. Cough: an overview. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1997; 95:613-6. [PMID: 9586406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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68
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Kundu AK, Ohshima K, Sako N. Nucleotide sequences of the coat protein genes of two Japanese zucchini yellow mosaic virus isolates. Acta Virol 1997; 41:297-301. [PMID: 9607085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The nucleotide (nt) sequences of the coat protein (CP) genes of two Japanese zucchini yellow mosaic virus (ZYMV) isolates (ZYMV-169 and ZYMV-M) were determined. The CP genes of both isolates were 837 nt long and encoded 279 amino acids (aa). The nt and deduced aa sequence similarities between the two isolates were 92% and 94.6%, respectively. The deduced aa sequences of CPs of the Japanese isolates were compared with those of previously reported ZYMV isolates by phylogenetic analysis. This comparison lead us to divide all ZMYV isolates into 3 groups in which ZYMV-169 formed its own distinct group.
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69
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Pal DK, Kundu AK, Das S. Simple renal cyst: an observation. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1997; 95:555, 558. [PMID: 9567602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the present study 1500 patients having abdominal ultrasonography were included. Unsuspected renal cysts were detected in 76 patients (5.06%). The age range was between 8 and 86 years with a maximum incidence being at 41-60 years age group. These asymptomatic cysts were observed commonly in the upper pole of right kidney. Incidence as well as size increased with age. Usually these cysts do not require any surgical intervention unless complicated.
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Kundu AK, Sarkar P, Manna AK, Das S. Ureteral injury at appendicectomy--a case report. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1997; 95:519-20. [PMID: 9529590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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71
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Pal DK, Kundu AK. Slipped catheter in urinary bladder. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1997; 95:123. [PMID: 9357285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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72
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Kundu AK. Cough--a common complication of ACE-inhibitor therapy. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1997; 95:82-83. [PMID: 9212577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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73
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Kundu AK, Bhattacherjee GC, Saha BB. Ultrasonography in acute flank pain. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1996; 94:403-4, 416. [PMID: 9141863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In 58 patients with acute recurrent or persistent flank pain, straight x-ray (kidney, ureter, bladder region) detected stones in the urinary tract in 50 cases (86.2%), whereas ultrasonography detected stones in the urinary tract in 55 patients (94.8%). Ultrasound also detected unilateral hydronephrosis in 20 patients (34.48%). The presence of calculus was subsequently proved by intravenous urography/surgery or spontaneous passage. Ultrasonography is safe, quick, reliable and most effective diagnostic tool in such cases in rural areas. Intravenous urogram should be reserved for cases which need surgical intervention.
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74
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Kundu AK. Acute gout in a patient taking pefloxacin--a case report. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1996; 94:427. [PMID: 9141871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Kundu AK, Chakraborty AK, Chakraborty S, Das S. Myxoma of the kidney. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1995; 93:462-464. [PMID: 8773134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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77
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Tiwari BK, Kundu AK, Bansal RD. National Iodine Deficiency Disorders Control Programme in India. Indian J Public Health 1995; 39:148-51. [PMID: 8690502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Iodine Deficiency Disorders are one of the biggest worldwide public health problem of today. Their effect is hidden and profound affecting the quality of human life. An attempt has been made to describe the various aspects of the National Iodine Deficiency Disorders control Programme (NIDDCP) being implemented in the country. The paper also focuses about the problems associated in implementing this national programme.
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Kundu AK, Das S, Saha BB. Acute retention of urine due to prostatic a abscess. Trop Doct 1995; 25:186. [PMID: 7502334 DOI: 10.1177/004947559502500416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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79
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Kundu AK, Goswami TK. Left subdiaphragmatic kidney: a case report. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1995; 93:153. [PMID: 8699045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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80
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Kundu AK, Kundu AK. Present-day management of pulmonary tuberculosis. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1995; 93:144-8. [PMID: 8699042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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81
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Kundu AK, Soumandal BK, Goswami TK. Entero uterine fistula. Trop Doct 1994; 24:175. [PMID: 7801367 DOI: 10.1177/004947559402400416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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82
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Kundu AK, Sinha S, Bhattacharjee G, Goswami TK. A neglected large renal stone. Trop Doct 1994; 24:123-4. [PMID: 8091522 DOI: 10.1177/004947559402400311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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83
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Misra MS, Nayak NR, Kundu AK. A comparison of vessel sensitivity and vessel constant in oxygen uptake determination with pure oxygen and air as gaseous media. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1992; 30:454-6. [PMID: 1459626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Air proved to be a superior gaseous medium to pure oxygen used for oxygen uptake study in the Warburg apparatus Recording of volume change (vessel sensitivity method) was the only correct method of recording the oxygen uptake. It is concluded that the volume change method should be followed for recording oxygen uptake by Warburg apparatus and pure oxygen should not be used as a gaseous medium.
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Misra MS, Nayak NR, Kundu AK. Relation between volume change and pressure change in oxygen uptake study using Warburg apparatus. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1991; 29:872-4. [PMID: 1794874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Taking oxygen and air as gaseous media oxygen uptake study was carried out recording delta V and corresponding delta P. From these data the quantity of oxygen consumed was calculated. It was concluded that delta V x vessel sensitivity x 2 = delta P x vessel constant. Recording of volume change in oxygen uptake study has been advocated.
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Kundu AK, Sharma AK. A rapid screening technique for detection of diosgenin through in situ cytophotometry. STAIN TECHNOLOGY 1988; 63:369-72. [PMID: 2471296 DOI: 10.3109/10520298809107613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Costus speciosus (Koenig) Sm. contains diosgenin, an important drug in family planning programs in India and underdeveloped countries. A simple, rapid method has been developed for in situ quantitation of diosgenin in this plant. The method is based on the formation of a suitable colored product of diosgenin in frozen sections of fresh material followed by determination of its optical density by in situ cytophotometry. The staining reagent is a combination of anisaldehyde, sulfuric acid and acetic acid. A positive correlation has been observed between cytophotometric diosgenin estimates and those derived from thin layer chromatography of extracts. The method is convenient for routine screening of plants for steroidal sapogenins such as diosgenin.
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Kundu AK, Roy A, Chatterjee A, Pandey BB. Co-existent pulmonary tuberculosis and bronchogenic carcinoma with involvement of a solitary lymph node. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1983; 81:57-9. [PMID: 6655270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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87
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Kundu AK, Deb A, Chatterjee S, Saha D. Kartagener's syndrome with situs inversus totalis, agenesis of frontal sinuses and bilateral cervical rib. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1980; 74:192-4. [PMID: 6969764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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88
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Kundu AK. Treatment of pulmonary tuberculosis. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1979; 73:126-9. [PMID: 121586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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89
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Kundu AK. Acute suppurative amoebic pericarditis (a case report ). THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 1978; 26:945-8. [PMID: 750580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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90
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Kundu AK, Manna S. Purification and characterization of extracellular proteinases of Aspergillus oryzae. Appl Microbiol 1975; 30:507-13. [PMID: 242254 PMCID: PMC187221 DOI: 10.1128/am.30.4.507-513.1975] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The extracellular proteinases of Aspergillus oryzae EI 212 were separated into two active fractions by (NH4)2SO4 and ethanol fractionation followed by diethylaminoethyl-Sephadex A-50 and hydroxyapatite chromatography. The molecular weight was estimated by gel filtration to be about 70,000 and 35,000 for proteinases I and II, respectively. Optimum pH for casein and hemoglobin hydrolysis was 6.5 at 60 C for proteinase I and 10.0 at 45 C for proteinase II, and for gelatin hydrolysis it was 6.5 at 45 C for both enzymes. The enzymes were stable over the pH range 6 to 8 at 30 C for 60 min. The enzyme activity for both the proteinases was accelerated by Cu2+ and inhibited by Fe2+, Fe3+, Hg2+, and Ag+. Halogenators (e.g., N-chlorosuccinimide) and diisopropyl fluorophosphate inhibited proteinase II. Sulfhydryl reagents such as p-chloromercuribenzoate and iodoacetate inhibited proteinase I. Sulfhydryl compounds accelerated the action of both enzymes.
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Kundu AK, Manna S, Pal N. Purification and properties of a new extracellular collagenase from Aspergillus sclerotiorum. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1974; 12:441-3. [PMID: 4375118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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92
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Kundu AK, Pal N, Manna S. Production of extracellular fungal collagenase. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1972; 10:73-4. [PMID: 4344434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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93
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Kundu AK, Manna S. Purification and properties of a new alpha-glucanase from Aspergillus oryzae. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1971; 9:75-8. [PMID: 5089323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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94
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Abstract
The effect of different media and pH on the formation of amylase by Aspergillus oryzae EI 212 is described. Depending upon the composition of the medium and growth conditions, the fungus was found to secrete alpha- or beta-amylase, or both. Some of the properties of the partially purified alpha-amylase were found to be different from alpha-amylases from other sources.
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