Search filters

List of works by Faizan Ahmad

A C-terminal Hydrophobic Region is Required for Homo-Oligomerization of the Hepatitis E Virus Capsid (ORF2) Protein

scientific article

A comparative study of structure, stability and function of sc-tenecteplase in the presence of stabilizing osmolytes

scientific article published on 26 May 2018

A new method for determining the constant-pressure heat capacity change associated with the protein denaturation induced by guanidinium chloride (or urea).

scientific article

A new method for testing the functional dependence of unfolding free energy changes on denaturant concentration

scientific article published on 01 February 1994

A new method for the determination of stability parameters of proteins from their heat-induced denaturation curves

scientific article published on 01 August 2000

A possible origin of differences between calorimetric and equilibrium estimates of stability parameters of proteins

scientific article published in February 2000

A review of methods available to estimate solvent-accessible surface areas of soluble proteins in the folded and unfolded states

scientific article published on January 2014

A single mutation induces molten globule formation and a drastic destabilization of wild-type cytochrome c at pH 6.0.

scientific article published on 10 March 2009

A unique molten globule state occurs during unfolding of cytochrome c by LiClO4 near physiological pH and temperature: structural and thermodynamic characterization

scientific article published on 01 April 2006

Acidic pH enhances structure and structural stability of the capsid protein of hepatitis E virus.

scientific article published on January 2004

Acidic residue modifications restore chaperone activity of β-casein interacting with lysozyme

scientific article published on 22 July 2011

Alanine Counteracts the Destabilizing Effect that Urea has on RNase-A.

scientific article published on 14 June 2016

Atypical PKC phosphorylates microtubule affinity-regulating kinase 4 in vitro.

scientific article published on 7 September 2015

Backbone and side chain 1H, 15N and 13C chemical shift assignments of the molten globule state of L94G mutant of horse cytochrome-c

scientific article published on 04 November 2019

Binding studies and biological evaluation of β-carotene as a potential inhibitor of human calcium/calmodulin-dependent protein kinase IV.

scientific article published on 9 December 2016

Biochemical characterization of hemoglobins from Caspian Sea sturgeons (Acipenser persicus and Acipenser stellatus).

scientific article published in January 2012

Biological Evaluation of a New Synthesized Pt(II) Complex by Cytotoxic and Spectroscopic Studies

scientific article

Biophysical analyses of human resistin: oligomer formation suggests novel biological function.

scientific article published in November 2008

Biophysical characterization of G protein ectodomain of group B human respiratory syncytial virus from E. coli.

scientific article published on 7 October 2015

Boron stabilizes peroxide mediated changes in the structure of heme proteins

scientific article published on 31 May 2010

Calcium/calmodulin-dependent protein kinase IV: A multifunctional enzyme and potential therapeutic target.

scientific article

Characterisation of molten globule-like state of sheep serum albumin at physiological pH

scientific article published on 11 May 2016

Characterization of a stable intermediate in the unfolding of diazoacetylglycine ethyl ester?pepsin by urea ⬇️

scientific article published on August 1, 1979

Characterization of folding intermediates during urea-induced denaturation of human carbonic anhydrase II.

scientific article

Characterization of heterogeneous intermediate ensembles on the guanidinium chloride-induced unfolding pathway of β-lactoglobulin

scientific article published on 02 April 2019

Characterization of intermediate state of myoglobin in the presence of PEG 10 under physiological conditions.

scientific article published on 24 February 2017

Characterization of pre-molten globule state of yeast iso-1-cytochrome c and its deletants at pH 6.0 and 25 °C

scientific article published on 04 November 2014

Chemometric studies of lysozyme upon interaction with sodium dodecyl sulfate and beta-cyclodextrin

scientific article published on 03 June 2006

Classification and Functional Analyses of Putative Conserved Proteins from Chlamydophila pneumoniae CWL029.

scientific article published on 09 December 2015

Cloning, expression, purification and characterization of human mitochondrial carbonic anhydrase VA.

scientific article

Cloning, expression, purification and refolding of microtubule affinity-regulating kinase 4 expressed in Escherichia coli.

scientific article published on 21 January 2014

Comparative analysis of naturally occurring L-amino acid osmolytes and their D-isomers on protection of Escherichia coli against environmental stresses.

scientific article published in September 2002

Comparative studies on the interaction between bovine beta-lacto-globulin type A and B and a new designed Pd(II) complex with anti-tumor activity at different temperatures

scientific article

Comparative study of the conformational lock, dissociative thermal inactivation and stability of euphorbia latex and lentil seedling amine oxidases.

scientific article published in April 2005

Comparison of the thermal stabilization of proteins by oligosaccharides and monosaccharide mixtures: Measurement and analysis in the context of excluded volume theory.

scientific article published on 22 March 2018

Compatibility of osmolytes with Gibbs energy of stabilization of proteins.

scientific article published in January 2000

Computing disease-linked SOD1 mutations: deciphering protein stability and patient-phenotype relations

scientific article

Conformational and thermodynamic characterization of the molten globule state occurring during unfolding of cytochromes-c by weak salt denaturants

scientific article published on 01 February 2003

Conformational and thermodynamic characterization of the premolten globule state occurring during unfolding of the molten globule state of cytochrome c ⬇️

scientific article published on August 10, 2010

Cooperative Unfolding of Residual Structure in Heat Denatured Proteins by Urea and Guanidinium Chloride.

scientific article published on 5 June 2015

Correction: Identification of Functional Candidates amongst Hypothetical Proteins of Treponema pallidum ssp. pallidum.

scientific article

Counteracting osmolyte trimethylamine N-oxide destabilizes proteins at pH below its pKa. Measurements of thermodynamic parameters of proteins in the presence and absence of trimethylamine N-oxide.

scientific article published on 14 January 2005

Counteraction of the deleterious effects of urea on structure and stability of mammalian kidney proteins by osmolytes.

scientific article published on 10 October 2017

Curcumin specifically binds to the human calcium-calmodulin-dependent protein kinase IV: fluorescence and molecular dynamics simulation studies.

scientific article

Data on the role of accessible surface area on osmolytes-induced protein stabilization

scientific article (publication date: February 2017)

Delineating the relationship between amyotrophic lateral sclerosis and frontotemporal dementia: Sequence and structure-based predictions.

scientific article published on 15 June 2016

Denatured states of yeast cytochrome c induced by heat and guanidinium chloride are structurally and thermodynamically different

Design and synthesis of a novel class of carbonic anhydrase-IX inhibitor 1-(3-(phenyl/4-fluorophenyl)-7-imino-3H-[1,2,3]triazolo[4,5d]pyrimidin 6(7H)yl)urea

scientific article published on 21 January 2016

Design, synthesis, and biological evaluation of a new palladium(II) complex: beta-lactoglobulin and K562 as targets.

scientific article

Design, synthesis, and biological evaluation of pyrimidine derivatives as potential inhibitors of human calcium/calmodulin-dependent protein kinase IV.

scientific article published on 3 November 2016

Designing New Kinase Inhibitor Derivatives as Therapeutics Against Common Complex Diseases: Structural Basis of Microtubule Affinity-Regulating Kinase 4 (MARK4) Inhibition.

scientific article published on November 2015

Determining stability of proteins from guanidinium chloride transition curves ⬇️

scientific article published on October 15, 1992

Diminishing of aggregation for bovine liver catalase through acidic residues modification

scientific article published on 06 June 2006

Dodecamer d-AGATCTAGATCT and a homologous hairpin form triplex in the presence of peptide REWER

scientific article

Domain unfolding and the stability of thermolysin in guanidine hydrochloride.

scientific article published in October 1986

Effect of a Synthesized Amyl-Glycine1, 10-Phenanthroline Platinum Nitrate on Structure and Stability of Human Blood Carrier Protein, Albumin: Spectroscopic and Modeling Approaches.

scientific article published on 29 May 2017

Effect of compatible and noncompatible osmolytes on the enzymatic activity and thermal stability of bovine liver catalase

scientific article published on 19 December 2012

Effect of conservative mutations (L94V and L94I) on the structure and stability of horse cytochrome c.

scientific article

Effect of mammalian kidney osmolytes on the folding pathway of sheep serum albumin.

scientific article published on 21 January 2017

Effect of monomeric and oligomeric sugar osmolytes on DeltaGD, the Gibbs energy of stabilization of the protein at different pH values: is the sum effect of monosaccharide individually additive in a mixture?

scientific article published on 20 September 2008

Effect of oligosaccharides and their monosaccharide mixtures on the stability of proteins: a scaled particle study

scientific article published on December 2010

Effect of pH on structure, function, and stability of mitochondrial carbonic anhydrase VA

scientific article published on 04 April 2016

Effect of pH on the stability of hemochromatosis factor E: a combined spectroscopic and molecular dynamics simulation-based study.

scientific article

Effect of pH on the structure, function, and stability of human calcium/calmodulin-dependent protein kinase IV: combined spectroscopic and MD simulation studies.

scientific article published on 22 January 2016

Effect of polyol osmolytes on DeltaG(D), the Gibbs energy of stabilisation of proteins at different pH values

scientific article published in August 2005

Effect of salts and sodium dodecyl sulfate on chaperone activity of camel alphaS(1)-CN: insulin as the target protein.

scientific article

Effect of sequential deletion of extra N-terminal residues on the structure and stability of yeast iso-1-cytochrome-c.

scientific article

Effects of mobile phone radiofrequency on the structure and function of the normal human hemoglobin.

scientific article published in April 2009

Effects of salts of alkali earth metals and calcium chloride on the stability of cytochrome c and myoglobin

scientific article published on 01 May 1996

Elucidation of Dietary Polyphenolics as Potential Inhibitor of Microtubule Affinity Regulating Kinase 4: In silico and In vitro Studies.

scientific article published on 25 August 2017

Energetic domains and conformational analysis of human serum albumin upon co-incubation with sodium benzoate and glucose.

scientific article published on 13 April 2013

Enhancement of thermal reversibility and stability of human carbonic anhydrase II by mesoporous nanoparticles.

scientific article

Equilibrium studies of the effect of difference in sequence homology on the mechanism of denaturation of bovine and horse cytochromes-c

scientific article published in March 2003

Estimation of pH effect on the structure and stability of kinase domain of human integrin-linked kinase

scientific article published on 21 December 2017

Estimation of thermodynamic stability of human carbonic anhydrase IX from urea-induced denaturation and MD simulation studies.

scientific article published on 5 July 2017

Evaluation of human microtubule affinity-regulating kinase 4 inhibitors: fluorescence binding studies, enzyme, and cell assays.

scientific article published on 16 October 2016

Evidence from rotatory measurement for intermediate state in the guanidine hydrochloride denaturation of beta-lactoglobulin

scientific article published on 01 March 1977

Evidence of vanillin binding to CAMKIV explains the anti-cancer mechanism in human hepatic carcinoma and neuroblastoma cells.

scientific article published on 25 July 2017

Exploring Missense Mutations in Tyrosine Kinases Implicated with Neurodegeneration.

scientific article

Exploring molecular insights into the interaction mechanism of cholesterol derivatives with the Mce4A: A combined spectroscopic and molecular dynamic simulation studies

scientific article published on 9 January 2018

Fibril formation of lysozyme upon interaction with sodium dodecyl sulfate at pH 9.2.

scientific article published on 02 June 2007

Folding and stability studies on C-PE and its natural N-terminal truncant

scientific article published on 13 January 2014

Formation of the molten globule-like state during prolonged glycation of human serum albumin

scientific article published on 13 February 2007

Functional annotation of conserved hypothetical proteins from Haemophilus influenzae Rd KW20

scientific article (publication date: 2013)

Functional annotation of putative hypothetical proteins from Candida dubliniensis.

scientific article

Functional role of glutamine 28 and arginine 39 in double stranded RNA cleavage by human pancreatic ribonuclease

scientific article

GdmCl-induced unfolding studies of human carbonic anhydrase IX: a combined spectroscopic and MD simulation approach.

scientific article

GdnHCl-induced unfolding intermediate in the mitochondrial carbonic anhydrase VA.

scientific article published on 27 June 2016

Guanidinium chloride and urea denaturations of beta-lactoglobulin A at pH 2.0 and 25 degrees C: the equilibrium intermediate contains non-native structures (helix, tryptophan and hydrophobic patches)

scientific article published on 25 January 2007

Hemoglobin fructation promotes heme degradation through the generation of endogenous reactive oxygen species.

scientific article published on 20 April 2014

Heterogeneity of equilibrium molten globule state of cytochrome c induced by weak salt denaturants under physiological condition.

scientific article published on 7 April 2015

Human Disease Insight: An integrated knowledge-based platform for disease-gene-drug information

scientific article published on 26 November 2015

Human microtubule affinity-regulating kinase 4 is stable at extremes of pH.

scientific article published on 21 August 2015

Human seminal proteinase and prostate-specific antigen are the same protein

scientific article published on 01 June 2008

Human β-glucuronidase: structure, function, and application in enzyme replacement therapy.

scientific article published on October 2013

Identification and evaluation of bioactive natural products as potential inhibitors of human microtubule affinity-regulating kinase 4 (MARK4).

scientific article published on 23 April 2018

Identification of functional candidates amongst hypothetical proteins of Mycobacterium leprae Br4923, a causative agent of leprosy.

scientific article published on January 2015

Identification of functional candidates amongst hypothetical proteins of Treponema pallidum ssp. pallidum.

scientific article published on 20 April 2015

In silico approaches for the identification of virulence candidates amongst hypothetical proteins of Mycoplasma pneumoniae 309.

scientific article published on 18 September 2015

In vitro and in silico studies of urea-induced denaturation of yeast iso-1-cytochrome c and its deletants at pH 6.0 and 25 °C

scientific article published on 23 September 2014

Increased thermal stability of proteins in the presence of amino acids

scientific article published on October 1994

Influence of temperature on the intrinsic viscosities of proteins in random coil conformation ⬇️

scientific article published on January 15, 1974

Inhibition of fluorescent advanced glycation end products (AGEs) of human serum albumin upon incubation with 3-β-hydroxybutyrate

scientific article published on 18 February 2014

Inhibitory effects of beta-cyclodextrin and trehalose on nanofibril and AGE formation during glycation of human serum albumin.

scientific article

Inorganic salt denaturants stabilize ribonuclease against denaturation by urea

scientific article published on November 1, 1978

Interaction of DNA minor groove binder Hoechst 33258 with bovine serum albumin.

scientific article

Interaction of polyethylene glycol with cytochrome c investigated via in vitro and in silico approaches

scientific article published on 19 March 2021

Intrinsic viscosities of randomly coiled glycoproteins

scientific article

Intrinsic viscosity of ovomucoid in random coil conformation

scientific article published on January 1, 1975

Investigation of molecular mechanism of recognition between citral and MARK4: A newer therapeutic approach to attenuate cancer cell progression

scientific article published on 24 October 2017

Kinetic and conformational studies of adenosine deaminase upon interaction with oxazepam and lorazepam.

scientific article published in February 2010

Large scale analysis of the mutational landscape in β-glucuronidase: A major player of mucopolysaccharidosis type VII.

scientific article

Living with urea stress.

scientific article published on June 2009

Luminol-based chemiluminescent signals: clinical and non-clinical application and future uses.

scientific article published on 22 April 2014

Macromolecular crowding induces molten globule state in the native myoglobin at physiological pH.

scientific article published on 12 August 2017

Mechanistic insights into the urea-induced denaturation of kinase domain of human integrin linked kinase

scientific article published on 5 January 2018

Microtubule affinity-regulating kinase 4: structure, function, and regulation.

scientific article

Molecular basis of the structural stability of hemochromatosis factor E: A combined molecular dynamic simulation and GdmCl-induced denaturation study

scientific article published on 01 March 2016

Molecular mechanism of Ras-related protein Rab-5A and effect of mutations in the catalytically active phosphate-binding loop.

scientific article published on 4 January 2016

Multispectroscopic and Molecular Docking Insight into Elucidating the Interaction of Irisin with Rivastigmine Tartrate: A Combinational Therapy Approach to Fight Alzheimer's Disease

scientific article published on 08 March 2021

PKR-inhibitor binds efficiently with human microtubule affinity-regulating kinase 4.

scientific article published on 21 October 2015

Physico-chemical characterization of products of unfolding of cytochrome c by calcium chloride

scientific article published on 01 August 1994

Probing pH sensitivity of αC-phycoerythrin and its natural truncant: A comparative study.

scientific article

Progastriscin: structure, function, and its role in tumor progression.

scientific article published on 15 March 2010

Prolactin inducible protein in cancer, fertility and immunoregulation: structure, function and its clinical implications

scientific article

Protein aggregation and neurodegenerative diseases: From theory to therapy.

scientific article

Protein aggregation, misfolding and consequential human neurodegenerative diseases.

scientific article published on 23 January 2017

Protein and DNA destabilization by osmolytes: the other side of the coin.

scientific article

Protein stability: functional dependence of denaturational Gibbs energy on urea concentration

scientific article published on 01 February 1999

Protein stability: urea-induced versus guanidine-induced unfolding of metmyoglobin

scientific article published on 01 September 1996

Protein-protein interactions: principles, techniques, and their potential role in new drug development

scientific article published on June 2011

Purification and characterization of RGA2, a Rho2 GTPase-activating protein from Tinospora cordifolia.

scientific article

Purification and characterization of Ras related protein, Rab5a from Tinospora cordifolia.

scientific article published on 27 October 2015

Purification and characterization of calreticulin: a Ca²⁺-binding chaperone from sheep kidney.

scientific article

Purification and characterization of oligonucleotide binding (OB)-fold protein from medicinal plant Tinospora cordifolia.

scientific article

Purification and structural characterization of Mce4A from Mycobacterium tuberculosis.

scientific article published on 26 June 2016

Purification, preliminary X-ray crystallography and biophysical studies of triose phosphate isomerase-β-globin subunit complex.

scientific article

Relationship between protein stability and functional activity in the presence of macromolecular crowding agents alone and in mixture: An insight into stability-activity trade-off

scientific article published on 29 August 2015

Reversible unfolding of the major fraction of ovalbumin by guanidine hydrochloride.

scientific article published in November 1976

Role of N-terminal residues on folding and stability of C-phycoerythrin: simulation and urea-induced denaturation studies.

scientific article published on 27 November 2013

Role of non-compatible osmolytes in the stabilization of proteins during heat stress.

scientific article published on January 1998

Role of unique basic residues of human pancreatic ribonuclease in its catalysis and structural stability

scientific article published on 09 July 2007

Salt potentiates methylamine counteraction system to offset the deleterious effects of urea on protein stability and function.

scientific article

Sequence and stability of the goat cytochrome c.

scientific article published on 4 September 2008

Size-dependent studies of macromolecular crowding on the thermodynamic stability, structure and functional activity of proteins: in vitro and in silico approaches.

scientific article published on 11 November 2016

Spectrophotometric titration of phenolic groups of pepsin

scientific article published on December 1978

Spectroscopic and MD simulation studies on unfolding processes of mitochondrial carbonic anhydrase VA induced by urea

scientific article published on 27 January 2016

Spectroscopic studies of the effects of glycation of human serum albumin on L-Trp binding

scientific article published on 01 January 2007

Stability of acetylcholinesterase in guanidine hydrochloride solution ⬇️

scientific article published on 01 July 1981

Stability of proteins in the presence of polyols estimated from their guanidinium chloride-induced transition curves at different pH values and 25 degrees C.

scientific article

Structural Features of Nucleoprotein CST/Shelterin Complex Involved in the Telomere Maintenance and Its Association with Disease Mutations

scientific article published on 04 February 2020

Structural and thermodynamic characterisation of L94F mutant of horse cytochrome c.

scientific article published in July 2016

Structural basis of urea-induced unfolding: Unraveling the folding pathway of hemochromatosis factor E.

scientific article published on 20 June 2016

Structural characterization of MG and pre-MG states of proteins by MD simulations, NMR, and other techniques

scientific article

Structural diversity of class I MHC-like molecules and its implications in binding specificities.

scientific article published on January 2011

Structural insight into C9orf72 hexanucleotide repeat expansions: Towards new therapeutic targets in FTD-ALS.

scientific article

Structural studies on DNA triple helix formed by intronic GAA triplet repeat expansion in Friedreich's ataxia

scientific article published on 01 May 2003

Structure and function of von Willebrand factor

scientific article published on 01 January 2012

Structure guided design of potential inhibitors of human calcium-calmodulin dependent protein kinase IV containing pyrimidine scaffold

scientific article published on 30 December 2015

Structure-based function analysis of putative conserved proteins with isomerase activity from Haemophilus influenzae.

scientific article published on 28 December 2014

Structure-based functional annotation of hypothetical proteins from Candida dubliniensis: a quest for potential drug targets ⬇️

scientific article published on 17 October 2014

Structure-based functional annotation of putative conserved proteins having lyase activity from Haemophilus influenzae

scientific article published on 17 June 2014

Structure-function studies of Murraya koenigii trypsin inhibitor revealed a stable core beta sheet structure surrounded by alpha-helices with a possible role for alpha-helix in inhibitory function

scientific article published on 05 June 2007

Sugar osmolytes-induced stabilization of RNase A in macromolecular crowded cellular environment.

scientific article published on 14 April 2018

Testing polyols' compatibility with Gibbs energy of stabilization of proteins under conditions in which they behave as compatible osmolytes

scientific article published in July 2005

Testing the ability of non-methylamine osmolytes present in kidney cells to counteract the deleterious effects of urea on structure, stability and function of proteins.

scientific article

Testing the dependence of stabilizing effect of osmolytes on the fractional increase in the accessible surface area on thermal and chemical denaturations of proteins

scientific article published on 11 December 2015

Testing the paradigm that the denaturing effect of urea on protein stability is offset by methylamines at the physiological concentration ratio of 2:1 (urea:methylamines).

scientific article published on 26 September 2007

The SARS Coronavirus 3a protein binds calcium in its cytoplasmic domain

scientific article published on 10 August 2014

The SARS Coronavirus 3a protein causes endoplasmic reticulum stress and induces ligand-independent downregulation of the type 1 interferon receptor

scientific article

The correlation of RNase A enzymatic activity with the changes in the distance between Nepsilon2-His12 and N delta1-His119 upon addition of stabilizing and destabilizing salts

scientific article published on 01 February 2006

The correlation of cold denaturation temperature with surface stability factor of proteins

scientific article published on 01 September 2007

The denaturation of beta-lactoglobulin-A at pH 2.

scientific article published on May 1977

The denaturation of covalently inhibited swine pepsin ⬇️

scientific article (publication date: September 1978)

The denaturation of ribonuclease A by combinations of urea and salt denaturants

scientific article published on July 1979

The effects of deferiprone and deferasirox on the structure and function of beta-thalassemia hemoglobin.

scientific article published in December 2009

The intrinsic viscosity of glycoproteins

scientific article published on January 1980

The pH Dependence of Saccharides' Influence on Thermal Denaturation of Two Model Proteins Supports an Excluded Volume Model for Stabilization Generalized to Allow for Intramolecular Electrostatic Interactions

scientific article

The pH dependence of the reversible unfolding of ovalbumin A1 by guanidine hydrochloride

scientific article published on February 1979

The role of key residues in structure, function, and stability of cytochrome-c.

scientific article published on 25 April 2013

Therapeutic progress in amyotrophic lateral sclerosis-beginning to learning

scientific article published on 14 June 2016

Thermal Stabilization of Proteins by Mono- and Oligosaccharides: Measurement and Analysis in the Context of an Excluded Volume Model

scientific article published on 03 June 2015

Thermal dissection of lentil seedling amine oxidase domains by differential scanning calorimetry

scientific article published on 07 July 2007

Thermal inactivation and conformational lock of bovine carbonic anhydrase.

scientific article

Thermodynamics of a molten globule state of human serum albumin by 3-β-hydroxybutyrate as a ketone body

scientific article published on 19 December 2012

Thermodynamics of the denaturation of pepsinogen by urea ⬇️

scientific article published on January 24, 1978

Towards New Drug Targets? Function Prediction of Putative Proteins of Neisseria meningitidis MC58 and Their Virulence Characterization

scientific article published on 15 June 2015

Two-state irreversible thermal denaturation of Euphorbia characias latex amine oxidase

scientific article published on 23 August 2006

Ubiquitin-associated domain of MARK4 provides stability at physiological pH.

scientific article published on 24 September 2016

Urea-induced denaturation of human calcium/calmodulin-dependent protein kinase IV: a combined spectroscopic and MD simulation studies.

scientific article published on 2 February 2016

Virtual Screening Approach to Identify High-Affinity Inhibitors of Serum and Glucocorticoid-Regulated Kinase 1 among Bioactive Natural Products: Combined Molecular Docking and Simulation Studies

scientific article published on 13 February 2020

Why is glycine not a part of the osmoticum in the urea-rich cells?

scientific article published in January 2013

Zinc alpha 2-glycoprotein: a multidisciplinary protein.

scientific article published on June 2008

Paulina is supported by:

About Paulina

Help