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Anjali, Vk G, Sarma L, Tripathi M, Verma MR, Verma V, Pathak MC, Samad HA, Maurya VP, Chouhan VS, Singh G. Thyroid hormone dynamics of Tharparkar and Sahiwal cattle during induced heat stress. Trop Anim Health Prod 2023; 55:57. [PMID: 36715891 DOI: 10.1007/s11250-023-03477-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 01/17/2023] [Indexed: 01/31/2023]
Abstract
Thyroid hormones and Cortisol level are the essential biomarkers in the assessment of stress condition. This study was done to estimate the metabolic hormonal profile of Tharparkar and Sahiwal during heat stress condition. The experiment was conducted on two groups consisting of Tharparkar and Sahiwal animals (5 in each group) and the experimental period comprised a 7-day acclimatization period, a heat exposure period of 21 days at control (25 °C), moderate (35 °C) and severe (42 °C) heat stress within a 9-10-day recovery period between each exposure. The hormonal concentrations of T3, T4 and cortisol were determined in serum. The serum concentration of Thyroxine (T4) and tri-iodothyronine (T3) decreases whereas cortisol level increases in both the breeds when subjected to heat stress. However, the serum level of T4 was significantly (p < 0.05) more declined in Sahiwal as compared to Tharparkar but there was no significant difference found between the two breeds in serum T3 levels. The cortisol levels were elevated in both breeds during heat stress but significantly (p < 0.05) more elevated in the Sahiwal. Hence, observations of these hormonal profiles suggest a better thermo-adaptability in Tharparkar as compared to Sahiwal.
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Affiliation(s)
- Anjali
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India
| | - Gururaj Vk
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India
| | - Lipika Sarma
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India
| | - M Tripathi
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India
| | - Med Ram Verma
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India
| | - Vinay Verma
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India
| | - M C Pathak
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India
| | - H A Samad
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India
| | - V P Maurya
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India
| | - V S Chouhan
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India
| | - Gyanendra Singh
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, 243122 UP, India.
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Okafor CD, Pathak MC, Fagan CE, Bauer NC, Cole MF, Gaucher EA, Ortlund EA. Structural and Dynamics Comparison of Thermostability in Ancient, Modern, and Consensus Elongation Factor Tus. Structure 2018; 26:118-129.e3. [PMID: 29276038 PMCID: PMC5785943 DOI: 10.1016/j.str.2017.11.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/18/2017] [Accepted: 11/27/2017] [Indexed: 01/07/2023]
Abstract
Rationally engineering thermostability in proteins would create enzymes and receptors that function under harsh industrial applications. Several sequence-based approaches can generate thermostable variants of mesophilic proteins. To gain insight into the mechanisms by which proteins become more stable, we use structural and dynamic analyses to compare two popular approaches, ancestral sequence reconstruction (ASR) and the consensus method, used to generate thermostable variants of Elongation Factor Thermo-unstable (EF-Tu). We present crystal structures of ancestral and consensus EF-Tus, accompanied by molecular dynamics simulations aimed at probing the strategies employed to enhance thermostability. All proteins adopt crystal structures similar to extant EF-Tus, revealing no difference in average structure between the methods. Molecular dynamics reveals that ASR-generated sequences retain dynamic properties similar to extant, thermostable EF-Tu from Thermus aquaticus, while consensus EF-Tu dynamics differ from evolution-based sequences. This work highlights the advantage of ASR for engineering thermostability while preserving natural motions in multidomain proteins.
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Affiliation(s)
- C. Denise Okafor
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322 USA
| | - Manish C. Pathak
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322 USA
| | - Crystal E. Fagan
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322 USA
| | - Nicholas C. Bauer
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322 USA
| | - Megan F. Cole
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332 USA
| | - Eric A. Gaucher
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332 USA
| | - Eric A. Ortlund
- Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322 USA,Correspondence:
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Ren J, Pei-Chen Lin C, Pathak MC, Temple BRS, Nile AH, Mousley CJ, Duncan MC, Eckert DM, Leiker TJ, Ivanova PT, Myers DS, Murphy RC, Brown HA, Verdaasdonk J, Bloom KS, Ortlund EA, Neiman AM, Bankaitis VA. A phosphatidylinositol transfer protein integrates phosphoinositide signaling with lipid droplet metabolism to regulate a developmental program of nutrient stress-induced membrane biogenesis. Mol Biol Cell 2014; 25:712-27. [PMID: 24403601 PMCID: PMC3937096 DOI: 10.1091/mbc.e13-11-0634] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 12/10/2013] [Accepted: 12/23/2013] [Indexed: 12/31/2022] Open
Abstract
Lipid droplet (LD) utilization is an important cellular activity that regulates energy balance and release of lipid second messengers. Because fatty acids exhibit both beneficial and toxic properties, their release from LDs must be controlled. Here we demonstrate that yeast Sfh3, an unusual Sec14-like phosphatidylinositol transfer protein, is an LD-associated protein that inhibits lipid mobilization from these particles. We further document a complex biochemical diversification of LDs during sporulation in which Sfh3 and select other LD proteins redistribute into discrete LD subpopulations. The data show that Sfh3 modulates the efficiency with which a neutral lipid hydrolase-rich LD subclass is consumed during biogenesis of specialized membrane envelopes that package replicated haploid meiotic genomes. These results present novel insights into the interface between phosphoinositide signaling and developmental regulation of LD metabolism and unveil meiosis-specific aspects of Sfh3 (and phosphoinositide) biology that are invisible to contemporary haploid-centric cell biological, proteomic, and functional genomics approaches.
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Affiliation(s)
- Jihui Ren
- Lineberger Comprehensive Cancer Center, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7090
- Department of Molecular and Cellular Medicine, Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843-1114
| | - Coney Pei-Chen Lin
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY 11794-5215
| | - Manish C. Pathak
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322-4250
| | - Brenda R. S. Temple
- R. L. Juliano Structural Bioinformatics Core, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7260
| | - Aaron H. Nile
- Department of Molecular and Cellular Medicine, Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843-1114
| | - Carl J. Mousley
- Department of Molecular and Cellular Medicine, Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843-1114
| | - Mara C. Duncan
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3280
| | - Debra M. Eckert
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112-5650
| | - Thomas J. Leiker
- Department of Pharmacology, University of Colorado Health Sciences Center, Denver, CO 80045-0511
| | - Pavlina T. Ivanova
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37232-6600
| | - David S. Myers
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37232-6600
| | - Robert C. Murphy
- Department of Pharmacology, University of Colorado Health Sciences Center, Denver, CO 80045-0511
| | - H. Alex Brown
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37232-6600
| | - Jolien Verdaasdonk
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3280
| | - Kerry S. Bloom
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3280
| | - Eric A. Ortlund
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322-4250
| | - Aaron M. Neiman
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY 11794-5215
| | - Vytas A. Bankaitis
- Department of Molecular and Cellular Medicine, Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843-1114
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Gromiha MM, Pathak MC, Saraboji K, Ortlund EA, Gaucher EA. Hydrophobic environment is a key factor for the stability of thermophilic proteins. Proteins 2013; 81:715-21. [PMID: 23319168 DOI: 10.1002/prot.24232] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 11/16/2012] [Accepted: 11/28/2012] [Indexed: 11/07/2022]
Affiliation(s)
- M Michael Gromiha
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai 600036, Tamilnadu, India.
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Zhao H, Lim K, Choudry A, Latham JA, Pathak MC, Dominguez D, Luo L, Herzberg O, Dunaway-Mariano D. Correlation of structure and function in the human hotdog-fold enzyme hTHEM4. Biochemistry 2012; 51:6490-2. [PMID: 22871024 DOI: 10.1021/bi300968n] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Human THEM4 (hTHEM4) is comprised of a catalytically active hotdog-fold acyl-CoA thioesterase domain and an N-terminal domain of unknown fold and function. hTHEM4 has been linked to Akt1 regulation and cell apoptosis. Herein, we report the X-ray structure of hHTEM4 bound with undecan-2-one-CoA. Structure guided mutagenesis was carried out to confirm the catalytic residues. The N-terminal domain is shown to be partially comprised of irregular and flexible secondary structure, reminiscent of a protein-binding domain. We demonstrate direct hTHEM4-Akt1 binding by immunoprecipitation and by inhibition of Akt1 kinase activity, thus providing independent evidence that hTHEM4 is an Akt1 negative regulator.
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Affiliation(s)
- Hong Zhao
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM 87131, USA
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Pande M, Das GK, Khan FA, Sarkar M, Prasad JK, Pathak MC, Kumar H. Uterine Infection Influences Size and Follicular Fluid Composition of the Largest Follicle in Buffalo (Bubalus bubalis). Reprod Domest Anim 2012; 48:79-84. [DOI: 10.1111/j.1439-0531.2012.02034.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Ren J, Schaaf G, Bankaitis VA, Ortlund EA, Pathak MC. Crystallization and preliminary X-ray diffraction analysis of Sfh3, a member of the Sec14 protein superfamily. Acta Crystallogr Sect F Struct Biol Cryst Commun 2011; 67:1239-43. [PMID: 22102037 PMCID: PMC3212372 DOI: 10.1107/s1744309111027096] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Accepted: 07/06/2011] [Indexed: 11/10/2022]
Abstract
Sec14 is the major phosphatidylinositol (PtdIns)/phosphatidylcholine (PtdCho) transfer protein in the yeast Saccharomyces cerevisiae and is the founding member of the Sec14 protein superfamily. Recent functional data suggest that Sec14 functions as a nanoreactor for PtdCho-regulated presentation of PtdIns to PtdIns kinase to affect membrane trafficking. Extrapolation of this concept to other members of the Sec14 superfamily suggests a mechanism by which a comprehensive cohort of Sec14-like nanoreactors sense correspondingly diverse pools of lipid metabolites. In turn, metabolic information is translated to signaling circuits driven by phosphoinositide metabolism. Sfh3, one of five Sec14 homologs in yeast, exhibits several interesting functional features, including its unique localization to lipid particles and microsomes. This localization forecasts novel regulatory interfaces between neutral lipid metabolism and phosphoinositide signaling. To launch a detailed structural and functional characterization of Sfh3, the recombinant protein was purified to homogeneity, diffraction-quality crystals were produced and a native X-ray data set was collected to 2.2 Å resolution. To aid in phasing, SAD X-ray diffraction data were collected to 1.93 Å resolution from an SeMet-labeled crystal at the Southeast Regional Collaborative Access Team at the Advanced Photon Source. Here, the cloning and purification of Sfh3 and the preliminary diffraction of Sfh3 crystals are reported, enabling structural analyses that are expected to reveal novel principles governing ligand binding and functional specificity for Sec14-superfamily proteins.
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Affiliation(s)
- Jihui Ren
- Department of Cell and Developmental Biology, Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599-7090, USA
| | - Gabriel Schaaf
- Department of Cell and Developmental Biology, Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599-7090, USA
| | - Vytas A. Bankaitis
- Department of Cell and Developmental Biology, Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599-7090, USA
| | - Eric A. Ortlund
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Manish C. Pathak
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322, USA
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Mondal S, Pathak MC, Singh DN, Varshney VP. PERIPHERAL PLASMA PROGESTERONE CONCENTRATION DURING PERIPARTURIENT PERIOD IN BLACK BENGAL GOATS. Biol Reprod 2007. [DOI: 10.1093/biolreprod/77.s1.173c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tiwai RR, Pathak MC, Zodpey SP, Babar VY. Hypertension among cotton textile workers. Indian J Public Health 2003; 47:34-6. [PMID: 14723294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023] Open
Abstract
The present cross sectional study on prevalence of hypertension was carried out among 514 cotton textile workers of Shri Bapurao Deshmukh Sut Gimi, Wardha. Using standard guidelines for measuring blood pressure and standard criteria for diagnosis of hypertension, 20.2% of the subjects were found to have raised systolic and/or diastolic blood pressure. The prevalence of hypertension was significantly higher among persons aged 35 years or more, in the present occupation for 10 years or more and those working in more noisy department.
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Affiliation(s)
- R R Tiwai
- Indira Gandhi Medical College, Nagpur
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