Page 135 - 《渔业研究》2025年第5期
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     676                                  渔  业  研  究                                     第 47 卷
                                                 表 3    WNK  基因的外显子数量
                                          Tab. 3    The number of exons in the WNK genes
                        种类                                    外显子数量 Mumber of exons
                       Species
                                        WNK1a       WNK1b       WNK2       WNK3        WNK4a       WNK4b
                  斑点叉尾鮰 I. punctatus      24          34         30          24         20          27
                   长鳍真鮰 I. furcatus       25          29         25          23         19          26
                     斑马鱼 D. rerio         25          32         34          26         21          21
                  海水青鳉 O. melastigma      27          39         29          24         20          −
                  红鳍东方鲀 T. rubripes       31          40         30          25         22          23
                  非洲爪蟾 X. tropicalis            33               28          27               21
                    红原鸡 G. gallus               33               32          −                20
                     人类 H. sapiens              31               34          27               18
                    小鼠  M. musculus             34               32          27               19
                注:人类、小鼠、红原鸡和非洲爪蟾中只存在            1  个  WNK1  和  1  个  WNK4  基因,进化关系上不能明确其具体与鱼类的更细致划分。
                  Notes:  In  H.  sapiens,  M.  musculus,  G.  gallus  and  X.  tropicalis,  there  is  only  one  WNK1  gene  and  one  WNK4  gene.  In  terms  of  evolutionary
              relationships, it is unclear how they specifically correspond to the more detailed classification in fish.
                                       Motif 7              STKc_WNK1                      UTR
                  a)  WNK1a                  b)                             c)
                                       Motif 3              OSRI_C                         CDS
                                       Motif 9              PHA03247 superfamily
                                       Motif 2              PAT1 superfamily
                                       Motif 10             OSR1_C superfamily
                                       Motif 1              STKc_WNK
                     WNK1b
                                       Motif 4              STKc_WNK3
                                       Motif 6              Atrophin-1 superfamily
                                       Motif 5              STKc_WNK4
                                       Motif 8              SOBP superfamily
                     WNK2
                     WNK3
                     WNK4a
                     WNK1b
                        5’            3’      5’            3’               5’                       3’
                         0  600  1 200  1 800  2 400  3 000  0  600  1 200  1 800  2 400  3 000  0  20 000  40 000  60 000  80 000  100 000
                                               图 3    斑点叉尾鮰WNK   成员的结构
                                        Fig. 3    The structure of WNK members in I. punctatus
                  注:a. 斑点叉尾鮰WNK     成员之间的系统发育关系和保守蛋白质基序(Motif)的分布,底部刻度代表蛋白质长度(aa) ,
              总共鉴定了    10  个基序。b. 预测的斑点叉尾鮰WNK       蛋白的保守蛋白结构域。灰色条形表示每个蛋白质序列的长度,保守的蛋
              白激酶结构域用彩色框表示,底部刻度代表蛋白质长度(aa) 。STKc. 丝氨酸/苏氨酸蛋白激酶,催化结构域;OSR1_C. 氧化
              应激反应激酶     1 C  端结构域;Atrophin-1. 萎缩蛋白−1;PAT1. mRNA  衰变因子   PAT1  结构域;SOBP. 正弦眼形蛋白结合蛋白
              同源物;PHA03247. 保守结构域数据库中的一个超家族。c. 斑点叉尾鮰WNK                 基因的外显子−内含子结构。黄色框代表外显子
              (CDS) ,灰色线代表内含子,绿色框代表           5’和  3’非翻译区(UTR) ,底部刻度代表基因在染色体上的长度(bp) 。
                  Notes:  a.  The  phylogenetic  relationships  among  WNK  members  in  I.  punctatus  and  the  distribution  of  conserved  protein  motifs
              (Motif), the bottom scale represents protein length (amino acid), a total of 10 motifs are identified. b. Predicted conserved protein domains
              of WNK proteins in I. punctatus. Gray bars represent the length of each protein sequence, and conserved protein kinase domains are
              represented by colored boxes, the bottom scale represents protein length (amino acid). STKc. Serine/threonine protein kinases, catalytic
              domain; OSR1_C. Oxidative-stress-responsive kinase 1 C-terminal domain; Atrophin-1. Atrophin-1; PAT1. mRNA decay factor PAT1
              domain;  SOBP.  Sine  oculis-binding  protein  homologue;  PHA03247.  A  superfamily  in  conservative  domain  database.  c.  Exon-intron
              structure of I. punctatus WNK genes. Yellow boxes represent exons (CDS), gray lines represent introns, and green boxes represent 5’ and
              3’ untranslated regions (UTR), the bottom scale represents the length of the gene on the chromosome (base pair).





