Костина Мария Борисовна

Кандидат химических наук


Старший научный сотрудник (Группа мембранных биоэнергетических систем)

Тел.: +7 (495) 3306574

Избранные публикации

  1. Pestov N.B., Dmitriev R.I., Kostina M.B., Korneenko T.V., Shakhparonov M.I., Modyanov N.N. (2012). Structural evolution and tissue-specific expression of tetrapod-specific second isoform of secretory pathway Ca2+-ATPase. Biochem. Biophys. Res. Commun. 417 (4), 1298–303 [+]

    Secretory pathway Ca-ATPases are less characterized mammalian calcium pumps than plasma membrane Ca-ATPases and sarco-endoplasmic reticulum Ca-ATPases. Here we report analysis of molecular evolution, alternative splicing, tissue-specific expression and subcellular localization of the second isoform of the secretory pathway Ca-ATPase (SPCA2), the product of the ATP2C2 gene. The primary structure of SPCA2 from rat duodenum deduced from full-length transcript contains 944 amino acid residues, and exhibits 65% sequence identity with known SPCA1. The rat SPCA2 sequence is also highly homologous to putative human protein KIAA0703, however, the latter seems to have an aberrant N-terminus originating from intron 2. The tissue-specificity of SPCA2 expression is different from ubiquitous SPCA1. Rat SPCA2 transcripts were detected predominantly in gastrointestinal tract, lung, trachea, lactating mammary gland, skin and preputial gland. In the newborn pig, the expression profile is very similar with one remarkable exception: porcine bulbourethral gland gave the strongest signal. Upon overexpression in cultured cells, SPCA2 shows an intracellular distribution with remarkable enrichment in Golgi. However, in vivo SPCA2 may be localized in compartments that differ among various tissues: it is intracellular in epidermis, but enriched in plasma membranes of the intestinal epithelium. Analysis of SPCA2 sequences from various vertebrate species argue that ATP2C2 gene radiated from ATP2C1 (encoding SPCA1) during adaptation of tetrapod ancestors to terrestrial habitats.

    ID:898
  2. Kopantzev E.P., Monastyrskaya G.S., Vinogradova T.V., Zinovyeva M.V., Kostina M.B., Filyukova O.B., Tonevitsky A.G., Sukhikh G.T., Sverdlov E.D. (2008). Differences in gene expression levels between early and later stages of human lung development are opposite to those between normal lung tissue and non-small lung cell carcinoma. Lung Cancer 62 (1), 23–34 [+]

    We, for the first time, directly compared gene expression profiles in human non-small cell lung carcinomas (NSCLCs) and in human fetal lung development. Previously reported correlations of gene expression profiles between lung cancer and lung development, deduced from matching data on mouse development and human cancer, have brought important information, but suffered from different timing of mouse and human gene expression during fetal development and fundamental differences in tumorigenesis in mice and humans. We used the suppression subtractive hybridization technique to subtract cDNAs prepared from human fetal lung samples at weeks 10-12 and 22-24 and obtained a cDNA library enriched in the transcripts more abundant at the later stage. cDNAs sequencing and RT-PCR analysis of RNAs from human fetal and adult lungs revealed 12 differentially transcribed genes: ADH1B, AQP1, FOLR1, SLC34A2, CAV1, INMT, TXNIP, TPM4, ICAM-1, HLA-DRA, EFNA1 and HLA-E. Most of these genes were found up-regulated in mice and rats at later stages than in human lung development. In surgical samples of NSCLC, these genes were down-regulated as compared to surrounding normal tissues and normal lungs, thus demonstrating opposite expression profiles for the genes up-regulated during fetal lung development.

    ID:4
  3. Martynov V.I., Kostina M.B., Feigina M.I.u., Miroshnikov A.I. (1983). Limited proteolysis studies on molecular organization of bovine rhodopsin in the photoreceptor membrane. Bioorg Khim. 9, 734–745 [+]

    С помощью ограниченного протеинолиза на диск-мембранах нативной и инвертированной ориентации впервые показано, что зрительный родопсин состоит из семи трансмембранных доменов, пронизывающих фоторецепторную мембрану. Определены участки полипептидной цепи, экспонированные в цитоплазматическое и внутридисковое пространство фоторецепторной клетки, а также участки, погруженные в фосфолипидный матрикс.

    ID:65