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1.
J Neuroimmunol ; 359: 577667, 2021 10 15.
Artigo em Inglês | MEDLINE | ID: mdl-34332492

RESUMO

In the current study we report a novel autoantibody against Purkinje cells in a patient with primary autoimmune cerebellar ataxia (PACA) associated with Sjogren's syndrome (SS). Tissue-based indirect immunofluorescence assay (TBA) of the patient's serum and cerebrospinal fluid (CSF) revealed IgG antibody to Purkinje cells and the granular layer of the rat cerebellum. Rab6A was identified as autoantigen by mass spectrometry (MS) and Western blotting, and the interactions between Rab6A or its homologous Rab6B and autoantibody in patient serum were verified by recombinant cell-based assay (CBA) and neutralization experiments. This autoantibody may represent a novel biomarker in the diagnosis of PACA.


Assuntos
Autoanticorpos/sangue , Ataxia Cerebelar/sangue , Síndrome de Sjogren/sangue , Proteínas rab de Ligação ao GTP/sangue , Adulto , Animais , Ataxia Cerebelar/complicações , Ataxia Cerebelar/diagnóstico por imagem , Feminino , Células HEK293 , Humanos , Ratos , Síndrome de Sjogren/complicações , Síndrome de Sjogren/diagnóstico por imagem
2.
Artigo em Inglês | MEDLINE | ID: mdl-32733386

RESUMO

Melanocortin 4 receptor (MC4R), a notable component of the melanocortin system, regulates appetite, body weight, and energy homeostasis. Genome-wide association studies have identified several MC4R variants associated with adiposity; of these, rs17782313, which is associated with increased body mass index (BMI) and overeating behavior, is of particular interest. Another gene associated with increased adiposity in global genome-wide association studies is DNAJC27, a heat shock protein known to be elevated in obesity. The detailed mechanisms underlying the role of MC4R variants in the biological pathways underlying metabolic disorders are not well-understood. To address this, we assessed variations of rs17782313 in a cohort of 282 Arab individuals from Kuwait, who are deeply phenotyped for anthropometric and metabolic traits and various biomarkers, including DNAJC27. Association tests showed that the rs17782313_C allele was associated with BMI and DNAJC27 levels. Increased levels of DNAJC27 reduced the MC4R-mediated formation of cAMP in MC4R ACTOne stable cells. In conclusion, this study demonstrated an association between the rs17782313 variant near MC4R and increased BMI and DNAJC27 levels and established a link between increased DNAJC27 levels and lower cAMP levels. We propose that regulation of MC4R activity by DNAJC27 enhances appetite through its effect on cAMP, thereby regulating obesity.


Assuntos
Citocinas/sangue , Grelina/sangue , Proteínas de Choque Térmico HSP40/sangue , Hipertensão/epidemiologia , Nicotinamida Fosforribosiltransferase/sangue , Obesidade/epidemiologia , Polimorfismo de Nucleotídeo Único , Receptor Tipo 4 de Melanocortina/genética , Proteínas rab de Ligação ao GTP/sangue , Biomarcadores/sangue , Estudos de Coortes , Feminino , Predisposição Genética para Doença , Humanos , Hipertensão/sangue , Hipertensão/genética , Hipertensão/patologia , Kuweit/epidemiologia , Masculino , Pessoa de Meia-Idade , Obesidade/sangue , Obesidade/genética , Obesidade/patologia , Prognóstico
3.
Mol Cell Proteomics ; 19(9): 1546-1560, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32601174

RESUMO

Pathogenic mutations in the Leucine-rich repeat kinase 2 (LRRK2) are the predominant genetic cause of Parkinson's disease (PD). They increase its activity, resulting in augmented Rab10-Thr73 phosphorylation and conversely, LRRK2 inhibition decreases pRab10 levels. Currently, there is no assay to quantify pRab10 levels for drug target engagement or patient stratification. To meet this challenge, we developed an high accuracy and sensitivity targeted mass spectrometry (MS)-based assay for determining Rab10-Thr73 phosphorylation stoichiometry in human samples. It uses synthetic stable isotope-labeled (SIL) analogues for both phosphorylated and nonphosphorylated tryptic peptides surrounding Rab10-Thr73 to directly derive the percentage of Rab10 phosphorylation from attomole amounts of the endogenous phosphopeptide. The SIL and the endogenous phosphopeptides are separately admitted into an Orbitrap analyzer with the appropriate injection times. We test the reproducibility of our assay by determining Rab10-Thr73 phosphorylation stoichiometry in neutrophils of LRRK2 mutation carriers before and after LRRK2 inhibition. Compared with healthy controls, the PD predisposing mutation carriers LRRK2 G2019S and VPS35 D620N display 1.9-fold and 3.7-fold increased pRab10 levels, respectively. Our generic MS-based assay further establishes the relevance of pRab10 as a prognostic PD marker and is a powerful tool for determining LRRK2 inhibitor efficacy and for stratifying PD patients for LRRK2 inhibitor treatment.


Assuntos
Serina-Treonina Proteína Quinase-2 com Repetições Ricas em Leucina/antagonistas & inibidores , Serina-Treonina Proteína Quinase-2 com Repetições Ricas em Leucina/sangue , Neutrófilos/metabolismo , Doença de Parkinson/sangue , Inibidores de Proteínas Quinases/farmacologia , Proteoma/metabolismo , Proteínas rab de Ligação ao GTP/sangue , Cromatografia Líquida , Humanos , Imunoprecipitação , Marcação por Isótopo , Serina-Treonina Proteína Quinase-2 com Repetições Ricas em Leucina/genética , Mutação , Doença de Parkinson/genética , Fosforilação , Proteoma/genética , Reprodutibilidade dos Testes , Espectrometria de Massas em Tandem
4.
Pathol Oncol Res ; 26(3): 1817-1822, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31748878

RESUMO

Oral squamous cell carcinoma (OSCC) accounts for more than 90% of all oral cancers and has been listed as sixth most common human cancer. Due to late diagnosis and insufficient therapeutic response among patients, the survival rate remains very low accentuating the importance of early diagnostic markers. The study aimed to identify differentially expressed proteins in search for putative serum biomarkers and drug targets. Serum samples (n = 45) were depleted and resolved on two dimensional gel electrophoresis. Among differentially expressed proteins, two were identified using MALDI-TOF mass spectrometry. Gene expression levels of identified proteins were quantified in malignant and normal tissue using RT-qPCR. To validate serum Rabl3 expression, sandwich ELISA was performed. Proteomics analysis revealed two proteins which were found to be associated with oral cancer. The expression of GIMAP7 was found to be down regulated in serum of patients suffering from oral cancer while the expression of Rabl3 was found to be up-regulated. Gene expression analysis in malignant tissue and adjacent normal tissue revealed the same pattern. Quantitative ELISA was used to validate expression of Rabl3 in serum from oral cancer patients and healthy subjects which demonstrated significant up-regulation in cancer patients. Findings in current study demonstrate differential expression of novel putative biomarkers GIMAP7 and Rabl3 in oral cancer which suggests their potential role in oral cancer pathology and can be considered as predictive biomarkers.


Assuntos
Biomarcadores Tumorais/sangue , Proteínas de Ligação ao GTP/sangue , Neoplasias Bucais/patologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Proteínas rab de Ligação ao GTP/sangue , Proteínas de Ligação ao GTP/biossíntese , Humanos , Neoplasias Bucais/sangue , Proteômica/métodos , Carcinoma de Células Escamosas de Cabeça e Pescoço/sangue , Proteínas rab de Ligação ao GTP/biossíntese
5.
Autophagy ; 15(1): 34-57, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30081747

RESUMO

ZFYVE26/Spastizin and SPG11/Spatacsin encode 2 large proteins that are mutated in hereditary autosomal-recessive spastic paraplegia/paraparesis (HSP) type 15 (AR-SPG15) and type 11 (AR-SPG11), respectively. We previously have reported that AR-SPG15-related ZFYVE26 mutations lead to autophagy defects with accumulation of immature autophagosomes. ZFYVE26 and SPG11 were found to be part of a complex including the AP5 (adaptor related protein complex 5) and to have a critical role in autophagic lysosomal reformation with identification of autophagic and lysosomal defects in cells with both AR-SPG15- and AR-SPG11-related mutations. In spite of these similarities between the 2 proteins, here we report that ZFYVE26 and SPG11 are differently involved in autophagy and endocytosis. We found that both ZFYVE26 and SPG11 interact with RAB5A and RAB11, 2 proteins regulating endosome trafficking and maturation, but only ZFYVE26 mutations affected RAB protein interactions and activation. ZFYVE26 mutations lead to defects in the fusion between autophagosomes and endosomes, while SPG11 mutations do not affect this step and lead to a milder autophagy defect. We thus demonstrate that ZFYVE26 and SPG11 affect the same cellular physiological processes, albeit at different levels: both proteins have a role in autophagic lysosome reformation, but only ZFYVE26 acts at the intersection between endocytosis and autophagy, thus representing a key player in these 2 processes. Indeed expression of the constitutively active form of RAB5A in cells with AR-SPG15-related mutations partially rescues the autophagy defect. Finally the model we propose demonstrates that autophagy and the endolysosomal pathway are central processes in the pathogenesis of these complicated forms of hereditary spastic paraparesis. Abbreviations: ALR, autophagic lysosome reformation; AP5, adaptor related protein complex 5; AR, autosomal-recessive; HSP, hereditary spastic paraplegia/paraparesis; ATG14, autophagy related 14; BafA, bafilomycin A1; BECN1, beclin 1; EBSS, Earle balanced salt solution; EEA1, early endosome antigen 1; EGF, epidermal growth factor; EGFR, epidermal growth factor receptor; GDP, guanosine diphosphate; GFP, green fluorescent protein; GTP, guanosine triphosphate; HSP, hereditary spastic paraplegias; LBPA, lysobisphosphatidic acid; MAP1LC3B/LC3B, microtubule associated protein 1 light chain 3 beta; MVBs, multivesicular bodies; PIK3C3, phosphatidylinositol 3-kinase, catalytic subunit type 3; PIK3R4, phosphoinositide-3-kinase regulatory subunit 4; PtdIns3P, phosphatidylinositol-3-phosphate; RFP, red fluorescent protein; RUBCN, RUN and cysteine rich domain containing beclin 1 interacting protein; shRNA, short hairpin RNA; SQSTM1/p62, sequestosome 1; TCC: thin corpus callosum; TF, transferrin; UVRAG, UV radiation resistance associated.


Assuntos
Autofagia/genética , Proteínas de Transporte/genética , Endocitose/genética , Proteínas/genética , Degeneração Retiniana/genética , Paraplegia Espástica Hereditária/genética , Proteínas Adaptadoras de Transporte Vesicular/sangue , Autofagossomos/metabolismo , Proteínas de Transporte/sangue , Proteínas de Transporte/metabolismo , Endossomos/metabolismo , Feminino , Células HeLa , Humanos , Lisossomos/metabolismo , Masculino , Mutação , Proteínas/metabolismo , Degeneração Retiniana/sangue , Paraplegia Espástica Hereditária/sangue , Proteínas rab de Ligação ao GTP/sangue , Proteínas rab de Ligação ao GTP/metabolismo , Proteína rab2 de Ligação ao GTP/sangue , Proteínas rab5 de Ligação ao GTP/sangue , Proteínas rab5 de Ligação ao GTP/genética , Proteínas rab5 de Ligação ao GTP/metabolismo
6.
J Cell Biochem ; 119(10): 8600-8610, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30015383

RESUMO

Recent research has tried to use exosomal RNAs (coding and noncoding) as potential diagnostic markers for hepatocellular carcinoma (HCC). Initially, by using bioinformatics, we selected an HCC-exosomal RNA-based biomarker panel. The choice of this panel depends on the integration of Ras-related in brain (RAB11A) gene expression and its competing endogenous network. This network includes long noncoding RNA RP11-513I15.6 (lncRNA-RP11-513I15.6) and microRNA-1262 (miR-1262). Secondly, we tried to validate the expression of this network in the sera of 60 patients with HCC in comparison with 42 chronic hepatitis C virus-infected patients and 18 healthy controls. Then we assessed the diagnostic efficiency of this panel using a receiver operating characteristic curve analysis. The panel of 3 exosomal RNA-based biomarkers (lncRNA-RP11-513I15.6, miR-1262, and RAB11A) showed excellent sensitivity and specificity in discriminating patients with HCC from patients with chronic hepatitis C virus and healthy controls. Among these 3 RNAs, serum RAB11A mRNA was the most independent prognostic factor. The selected circulatory exosomal RNA-based biomarker panel showed its ability to be used as a diagnostic and prognostic biomarker tool for HCC. Moreover, these biomarkers could be therapeutic targets.


Assuntos
Carcinoma Hepatocelular/sangue , Neoplasias Hepáticas/sangue , MicroRNAs/genética , RNA Longo não Codificante/genética , Proteínas rab de Ligação ao GTP/sangue , Análise de Variância , Biomarcadores Tumorais/sangue , Carcinoma Hepatocelular/ultraestrutura , Distribuição de Qui-Quadrado , Biologia Computacional , Exossomos/ultraestrutura , Feminino , Expressão Gênica , Hepatite C Crônica/sangue , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/ultraestrutura , Masculino , Microscopia Eletrônica de Transmissão , Pessoa de Meia-Idade , Prognóstico , RNA Mensageiro/genética , Estatísticas não Paramétricas , alfa-Fetoproteínas/análise
7.
Tumour Biol ; 39(3): 1010428317695040, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28349825

RESUMO

Critical roles of epigenomic alterations in the pathogenesis of breast cancer have recently seized great attentions toward finding epimarkers in either non-invasive or semi-non-invasive samples as well as peripheral blood. In this way, methylated DNA immunoprecipitation microarray (MeDIP-chip) was performed on DNA samples isolated from white blood cells of 30 breast cancer patients compared to 30 healthy controls. A total of 1799 differentially methylated regions were identified including SLC6A3, Rab40C, ZNF584, and FOXD3 whose significant methylation differences were confirmed in breast cancer patients through quantitative real-time polymerase chain reaction. Hypermethylation of APC, HDAC1, and GSK1 genes has been previously reported in more than one study on tissue samples of breast cancer. Methylation of those aforementioned genes in white blood cells of our young patients not only relies on their importance in breast cancer pathogenesis but also may highlight their potential as early epimarkers that makes further assessments necessary in large cohort studies.


Assuntos
Biomarcadores Tumorais/genética , Neoplasias da Mama/genética , Proteínas da Membrana Plasmática de Transporte de Dopamina/genética , Fatores de Transcrição Forkhead/genética , Proteínas rab de Ligação ao GTP/genética , Adulto , Biomarcadores Tumorais/sangue , Neoplasias da Mama/sangue , Neoplasias da Mama/patologia , Metilação de DNA/genética , Proteínas de Ligação a DNA/genética , Proteínas da Membrana Plasmática de Transporte de Dopamina/sangue , Epigênese Genética , Feminino , Fatores de Transcrição Forkhead/sangue , Redes Reguladoras de Genes/genética , Humanos , Análise em Microsséries , Regiões Promotoras Genéticas , Transdução de Sinais/genética , Proteínas rab de Ligação ao GTP/sangue
8.
PLoS One ; 9(4): e94264, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24736723

RESUMO

OBJECTIVES: This study examined alterations in the functions and proteome of high-density lipoprotein (HDL) subfractions (HDL2 and HDL3) isolated from patients with acute coronary syndrome (ACS) compared with control subjects. METHODS: We measured HDL subfraction cholesterol efflux capacity, inflammatory index (HII), paraoxonase-1 (PON1) activity, and lipid hydroperoxide (LOOH) levels in both male age-matched controls and the ACS group (n = 40/group). Additionally, proteomic analysis was used to monitor changes in the HDL subfraction proteome between controls and ACS subjects. RESULTS: Both HDL2 and HDL3 from ACS patients had greater HII and LOOH levels compared with controls (P<0.001); PON1 activity and cholesterol efflux capacity in both HDL2 and HDL3 from the ACS group were significantly less than those of controls (P<0.001). Using proteomic analysis, we demonstrated that, compared with the control group, nine proteins were selectively enriched in HDL3 from subjects with ACS, and ras-related protein Rab-7b was decreased in HDL3. Additionally, in the ACS subjects, 12 proteins were decreased in HDL2 and 4 proteins were increased in HDL2. CONCLUSIONS: Functional HDL subfractions shifted to dysfunctional HDL subfractions during ACS, and the functional impairment was linked to remodeled protein cargo in HDL subfractions from ACS patients.


Assuntos
Síndrome Coronariana Aguda/sangue , Síndrome Coronariana Aguda/metabolismo , Lipoproteínas HDL/sangue , Proteômica , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Componente Amiloide P Sérico/metabolismo , Proteínas rab de Ligação ao GTP/sangue , proteínas de unión al GTP Rab7
9.
Clin Chim Acta ; 412(15-16): 1417-22, 2011 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-21536019

RESUMO

BACKGROUND: Rabphilin-3A-like (RPH3AL) protein functions in the regulation of hormone exocytosis, and mutations in the RPHA3L gene have been associated with tumorigenesis in colorectal cancer (CRC). We evaluated the potential use of anti-RPH3AL autoantibodies as a marker for CRC detection. METHODS: Sera from 84 patients with CRC and 63 healthy controls were analysed for the presence of RPH3AL autoantibodies with a Western blotting assay. RESULTS: The frequencies of RPH3AL autoantibodies in the early stage, advanced stage and all CRC patients were 64.7%, 78.0% and 72.6%, respectively. These values are significantly higher than the frequency of RPH3AL autoantibodies in healthy controls (15.9%, P<0.001). Although the presence of RPH3AL autoantibodies did not correlate with clinical parameters, RPH3AL autoantibodies were found in 69.4% (34/49) of CRC patients who were negative for carcinoembryonic antigen. The value of the area under the receiver operating characteristic curve of RPH3AL autoantibody was 0.84, which suggests that screening for these autoantibodies could potentially be used for CRC diagnosis. CONCLUSION: Circulating RPH3AL autoantibodies are prevalent in patients with CRC, and detection of these autoantibodies might provide a novel non-invasive approach for CRC diagnosis.


Assuntos
Autoanticorpos/sangue , Biomarcadores Tumorais/sangue , Neoplasias Colorretais/sangue , Proteínas rab de Ligação ao GTP/sangue , Proteínas Adaptadoras de Transdução de Sinal , Adulto , Idoso , Idoso de 80 Anos ou mais , Western Blotting , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/tratamento farmacológico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Proteínas Recombinantes/sangue , Proteínas Recombinantes/genética , Proteínas Recombinantes/isolamento & purificação , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz , Proteínas rab de Ligação ao GTP/genética , Proteínas rab de Ligação ao GTP/isolamento & purificação
10.
Eukaryot Cell ; 4(5): 971-80, 2005 May.
Artigo em Inglês | MEDLINE | ID: mdl-15879531

RESUMO

In Trypanosoma brucei, endocytosis is developmentally regulated and is substantially more active in the mammalian infective stage, where it likely plays a role in immune evasion. The small GTPase TbRAB11 is highly expressed in the mammalian stage and mediates recycling of glycosylphosphatidylinositol-anchored proteins, including the variant surface glycoprotein (VSG) and the transferrin receptor, plus trafficking of internalized anti-VSG antibody and transferrin. No function has been assigned to TbRAB11 in the procyclic (insect) stage trypanosome. The importance of TbRAB11 to both bloodstream and procyclic form viability was assessed by RNA interference (RNAi). Suppression of TbRAB11 in the bloodstream form was rapidly lethal and led to cells with round morphology and an enlarged flagellar pocket. TbRAB11 RNAi was also lethal in procyclic forms, which also became rounded, but progression to cell death was significantly slower and the flagellar pocket remained normal. In bloodstream forms, silencing of TbRAB11 had no effect on exocytosis of newly synthesized VSG, fluid-phase endocytosis, or transferrin uptake, but export of internalized transferrin was inhibited. Lectin endocytosis assays revealed a block to postendosomal transport mediated by suppressing TbRAB11. By contrast, in procyclic forms, depletion of TbRAB11 blocks both fluid-phase endocytosis and internalization of surface proteins. In normal bloodstream forms, most VSG is recycled, but in procyclics, internalized surface proteins accumulated in the lysosome. These data demonstrate that TbRAB11 controls recycling and is essential in both life stages of T. brucei but that its primary role is subject to developmental variation.


Assuntos
Endocitose/fisiologia , Proteínas de Protozoários/fisiologia , Trypanosoma brucei brucei/crescimento & desenvolvimento , Proteínas rab de Ligação ao GTP/fisiologia , Animais , Anticorpos Antiprotozoários/metabolismo , Endocitose/genética , Lisossomos/metabolismo , Transporte Proteico/genética , Transporte Proteico/fisiologia , Proteínas de Protozoários/sangue , Proteínas de Protozoários/genética , Interferência de RNA , Transferrina/metabolismo , Trypanosoma brucei brucei/fisiologia , Trypanosoma brucei brucei/ultraestrutura , Glicoproteínas Variantes de Superfície de Trypanosoma/imunologia , Glicoproteínas Variantes de Superfície de Trypanosoma/metabolismo , Proteínas rab de Ligação ao GTP/sangue , Proteínas rab de Ligação ao GTP/genética
11.
Biochem J ; 342 ( Pt 2): 353-60, 1999 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-10455022

RESUMO

In platelets and other secretory cells, protein kinase C (PKC) plays a role in exocytosis stimulated by physiological extracellular signals, although its linkage to the secretory machinery is poorly understood. We investigated whether Rab6, a GTP-binding protein that fractionates with platelet alpha-granules, may be involved in linking these processes. We found that Rab6 contains two PKC consensus phosphorylation sites that are evolutionarily conserved. In platelets metabolically labelled with [(32)P]P(i), Rab6 phosphorylation was induced by phorbol esters or by thrombin. This phosphorylation was blocked by a specific PKC inhibitor (Ro-31-8220), but not by a p38 mitogen-activated protein kinase inhibitor (PD-169316). Physiological stimulation of platelets caused a PKC-dependent translocation of Rab6 from platelet particulate fractions, nearly doubling the fraction of Rab6 in the cytosol. A human Rab6 isoform (Rab6C) that is preferentially expressed in human platelet RNA was cloned and its phosphorylation by PKC was characterized. Rab6C incorporated up to 2 mol of [(32)P]P(i) per mol of active protein. Rab6C bound GDP and GTP with K(d) values of 113+/-12 and 119+/-27 nM respectively, and hydrolysed GTP at a rate of 100+/-15 micromol of GTP/mol of Rab6C per min. PKC phosphorylation of Rab6C increased the affinity for GTP by 3-fold, although it had lesser effects on GDP (1.6-fold). Phosphorylation did not alter the GTPase activity. In summary, thrombin activation of platelets leads to PKC-dependent phosphorylation of Rab6 and a translocation of Rab6 to the cytosol. We suggest that PKC phosphorylation may be an important mechanism through which Rab functional interactions in vesicle trafficking and secretion can be altered in response to an external stimulus.


Assuntos
Plaquetas/metabolismo , Guanosina Difosfato/sangue , Guanosina Trifosfato/sangue , Proteína Quinase C/sangue , Proteínas rab de Ligação ao GTP/sangue , Sequência de Aminoácidos , Animais , Sequência de Bases , Sítios de Ligação , Plaquetas/efeitos dos fármacos , Bovinos , Sequência Consenso , Citosol/metabolismo , Primers do DNA/genética , Inibidores de Dissociação do Nucleotídeo Guanina/sangue , Humanos , Técnicas In Vitro , Dados de Sequência Molecular , Fosforilação , Ativação Plaquetária/efeitos dos fármacos , Ativação Plaquetária/fisiologia , Isoformas de Proteínas/sangue , Isoformas de Proteínas/química , Isoformas de Proteínas/genética , Homologia de Sequência de Aminoácidos , Trombina/farmacologia , Proteínas rab de Ligação ao GTP/química , Proteínas rab de Ligação ao GTP/genética
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