Abstract：
:This work examines the molecular evolution of a brain-expressed X-linked gene family in the mammalian genomes of human, chimp, macaque, mouse, rat, dog, and cow. The gene structures are well conserved across family members and among the mammals in that all five members have three exons with the first two exons untranslated. Furthermore, the five members are arranged tandemly on chromosome X with Bex5, Bex1, Bex2 on the negative strand and Bex4, Bex3 on the positive strand, and this physical arrangement remains conserved among species. Sequence analyses indicate that gene conversion has been frequent and ongoing among Bex1-4, occurring in multiple species independently. All gene conversions in different species between Bex1 and Bex4, and between Bex2 and Bex3, appear to be limited to the upstream regions of the third exon, whereas the gene conversions occurred independently in different species between Bex1 and Bex2 and cover only the third exon. Bex5 appears to have little exchange of genetic information with other members, possibly due to its distance from other members. The GC content decreases from 5'-UTR, intron 1, intron 2, coding region, to 3'-UTR, reflecting faithfully the frequency of gene conversion in different regions of the Bex genes. Sequence analyses also suggest that both relaxed selective constraint and positive selection have acted on the Bex members after duplication. In particular, Bex3 shows strong evidence of positive selection and seems to have evolved a new gene function after gene duplication.
journal_name
Biochem Genetjournal_title
Biochemical geneticsauthors
Zhang Ldoi
10.1007/s10528-008-9148-8subject
Has Abstractpub_date
2008-06-01 00:00:00pages
293-311issue
5-6eissn
0006-2928issn
1573-4927journal_volume
46pub_type
杂志文章abstract：:The cryptic plasmid pGY1, which is harbored by a clinical isolate of Salmonella enterica serovar Paratyphi A, was identified in a 9-year-old girl with paratyphoid fever in 2005, and its DNA sequence was determined. It is 3592 bp in length and had a G+C content of 43.3%. Three ORFs were predicted that share low similar...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-008-9216-0
更新日期：2009-04-01 00:00:00
abstract：:Liver homogenate-supernatants from most Japanese exhibit an "atypical" pH optimum for ethanol oxidation at pH 8.8 instead of 10.5, the "typical" pH-activity optimum. It has been proposed that atypical livers contain alcohol dehydrogenase isozymes with beta 2 subunits while typical livers contain isozymes with beta 1 s...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF00499296
更新日期：1984-02-01 00:00:00
abstract：:Nucleophosmin/nucleoplasmin has been studied mostly in mammals and amphibians. To clarify the characteristics and function of nucleophosmin/nucleoplasmin in teleost fish, we cloned a full-length cDNA sequence from two cyprinid fish, Carassius auratus gibelio and Carassius auratus. Molecular characterization and multip...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-009-9274-y
更新日期：2009-12-01 00:00:00
abstract：:Examination of eight Atlantic species of the genus Littorina by starch gel electrophoresis of purine nucleoside phosphorylase revealed extensive polymorphism within the L. saxatilis complex. In this group, four alleles have been identified. Heterozygotes are four banded, and thus, as in vertebrates, the enzyme is like...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF00499096
更新日期：1986-06-01 00:00:00
abstract：:Malate dehydrogenase (MDH; EC 1.1.1.37) isozymes in long-term callus tissue culture of Cereus peruvianus were studied in starch gel electrophoresis to investigate the control of differential Mdh gene expression under sugar and temperature stress. While two cytosol MDH isozymes showed an unchanged phenotype when the ca...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1023/a:1021950008544
更新日期：1997-06-01 00:00:00
abstract：:The RAPD method was used to assess the genetic differentiation of brown hare (Lepus europaeus) populations from Central Greece. Greek wild populations were compared with samples from Austria, Poland, Germany, France, and Bulgaria, as well as with reared/released hares to investigate the impact of the releases on the n...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1023/a:1020260819629
更新日期：2002-10-01 00:00:00
abstract：:This haplotype-based case-control study investigated whether the aldosterone synthase gene (CYP11B2) might be implicated in the pathogenesis of essential hypertension in Yi (226 individuals) and Hani (296 individuals) minorities of China. Four tag SNPs (rs4536, rs4545, rs3097, and rs3802230) and the K173R polymorphism...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-010-9393-5
更新日期：2011-02-01 00:00:00
abstract：:A new polymorphism, Pc, has been identified in human saliva. Two proteins, Pc 1 and Pc 2, are determined by alleles Pc1 and Pc2, respectively, which show autosomal codominant inheritance. No null phenotype has been encountered in 225 randomly collected salivas. The frequencies of the two alleles differ in the Black an...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF00499111
更新日期：1985-02-01 00:00:00
abstract：:UMPK 3 is a rare variant of the polymorphic enzyme of human red cells, uridine monophosphate kinase. This homozygote phenotype was detected among the Warao Indians of Venezuela. The UMPK 1 and UMPK 3 enzymes were partially purified following the method described by Tend et al. (1976). The biochemical and kinetic param...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF00484529
更新日期：1978-12-01 00:00:00
abstract：:The taxonomy of the genus Hypostomus in the upper Rio Paraná basin presents some very complex issues. For this reason, an allozyme electrophoresis survey of 10 populations of Hypostomus from the Rio Corumbá basin was performed, revealing 25 loci from 14 enzyme systems. Allozyme data revealed diagnostic genetic markers...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-008-9191-5
更新日期：2008-12-01 00:00:00
abstract：:Maternal embryo leucine zipper kinase (MELK) has a higher expression level in a variety of cancers and involved in progression of colorectal cancer. The MELK expression levels in colorectal cancer tissues and cells were detected by RT-qPCR. MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) and transwe...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-020-09974-x
更新日期：2020-10-01 00:00:00
abstract：:Arylsulfatase A (ASA) activity was studied from five blood fractions, leukocytes plus platelets (LKPL), leukocytes (LK), neutrophils (N), lymphocytes (LYM), and platelets (PL). No significant difference was found among the mean ASA specific activity values for the fractions. Electrophoretic examination revealed four d...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF00484068
更新日期：1982-10-01 00:00:00
abstract：:Three high-glucose-6-phosphate dehydrogenase (G6PD)-activity mutants (2512H, S44H, and 1FH) are characterized by two insertion sequences associated with the G6PD locus; one (Ins1; 3.5 kb long in 2512H and S44H and 2.9 kb long in 1FH) is present just 5' to exon I and consists of a KP' (the 32nd base of the KP was repla...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF02396062
更新日期：1989-12-01 00:00:00
abstract：:Environmentally induced flax genotrophs L and S show heritable shifts in the relative mobilities of peroxidase, esterase, and acid phosphatase isozymes, plus a number of nonspecific glycoproteins. All L isozymes migrated faster than corresponding S isozymes in 10% acrylamide gels. Various aspects of these shifts are r...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF00499290
更新日期：1984-02-01 00:00:00
abstract：:When the 4-bp Dam recognition sequence was placed between two d(GA)7 tracts, it became severely undermethylated in JM101 Escherichia coli cells compared to other Dam sequences in the same plasmid DNA. This site specific undermethylation was also detected on supercoiled molecules in vitro. Mutational analysis indicated...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF02407017
更新日期：1996-06-01 00:00:00
abstract：:Single nucleotide polymorphisms (SNP) in the resistin gene (RETN) are linked to obesity and resistin levels in various populations. However, results have been inconsistent. This study aimed to investigate association between polymorphisms in the resistin gene with obesity in a homogenous Malaysian Malay population. Th...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-015-9678-9
更新日期：2015-06-01 00:00:00
abstract：:Genetic variation and differentiation of 12 populations of Picea jezoensis from the Russian Far East were studied using 20 allozyme loci. The mean number of alleles per locus was 2.63, the percent of polymorphic loci was 88.1%, the observed heterozygosity was 0.181, and the mean value of expected heterozygosity amount...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-006-9075-5
更新日期：2007-04-01 00:00:00
abstract：:Genetic variations affecting the course of depressive symptoms in patients with coronary artery disease (CAD) have not yet been well studied. Therefore, we set out to investigate whether distinct haplotypes of the two insertion/deletion polymorphisms in the serotonin-transporter-linked polymorphic region (5-HTTLPR) an...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-020-09967-w
更新日期：2020-08-01 00:00:00
abstract：:The nuclear factor of activated T lymphocytes (NFATc1) plays a critical role during valvular and septal development. Genetic variants may influence the biological function of the protein and thus play a role in susceptibility to valvuloseptal defects. Tandem repeat polymorphisms and a common nonsynonymous polymorphism...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-011-9434-8
更新日期：2011-10-01 00:00:00
abstract：:Gli-D1-encoded omega gliadins of bread wheats show little variation; their electrophoretic patterns can be classified into two main groups which broadly resemble the patterns found in the cultivars Chinese Spring and in Cheyenne. B and D subunits of low molecular weight glutenin encoded by the chromosome 1D loci Glu-D...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF00554146
更新日期：1991-08-01 00:00:00
abstract：:The nucleoside monophosphate kinases, adenylate kinase (AK), guanylate kinase (GUK), and uridine monophosphate kinase (UMPK), were studied electrophoretically and quantitatively in density gradient fractions of human red cells from normal adults which contain red cells of differing mean age. The enzymes were found to ...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF00484542
更新日期：1978-12-01 00:00:00
abstract：:The frequency distributions of apolipoprotein C alleles in native Asian sheep (Bengal, Kagi, Lampuchhre, Vietnamese, Myanmar, Baruwal, Bhyanglung, Khalkhas, and Kuwait) were determined using a one-dimensional polyacrylamide gel isoelectric-focusing immunoblotting technique. Among these Asian sheep, the genetic locus c...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1023/a:1020781629510
更新日期：2002-12-01 00:00:00
abstract：:Apodemus peninsulae is a field mouse that inhabits the broad-leafed forests of temperate Eurasia. We examined the mitochondrial cytochrome b gene in 57 in dividuals of A. peninsulae from northeastern Asia, including Siberia, Primorye, Magadan region, Sakhalin, Hokkaido, and the Korean Peninsula. The genealogy of the m...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1023/a:1015841424598
更新日期：2002-06-01 00:00:00
abstract：:Single-chain variable fragment (scFv) is one of the most common antibody forms. This report describes the expression of the scFv gene as a soluble protein in Origami DE3 cytoplasm. The purified scFv recognized the epidermal growth factor receptor (EGFRvIII) on the surface of MCF-7 cells. The scFv protein was purified ...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-012-9506-4
更新日期：2012-08-01 00:00:00
abstract：:Luo [Biochem. Genet. 43:223-227] concluded, "The mutation ALDH2(() 487Lys allele is not deleterious but is of great benefit to human health." This statement is easily subject to misinterpretation and needs to be clarified. Their results actually show there is a pleiotropic effect associated with the mutation ALDH2(() ...
journal_title：Biochemical genetics
pub_type： 评论,杂志文章
doi：10.1007/s10528-006-9041-2
更新日期：2006-10-01 00:00:00
abstract：:The genetic and cytogenetic locations of the structural gene (Men) for malic enzyme have been determined. Men maps genetically between kar and ry at 51.73 +/- 0.02. Cytogenetically, Men probably lies in the proximal edge of 87D1,2, based on the results of mapping utilizing a number of deficiencies with breakpoints in ...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF00484624
更新日期：1981-06-01 00:00:00
abstract：:To determine the prevalence of G6PD deficiency and a Mediterranean mutation among males in southeastern Iran, we studied 1,097 Sistani and Balouch schoolboys. A questionnaire was used to collect demographic data and a history of malaria infection; blood samples were evaluated for G6PD deficiency and the G6PD Mediterra...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-012-9548-7
更新日期：2013-02-01 00:00:00
abstract：:Scirpophaga incertulas, commonly referred to as yellow stem borer, is a predominant pest of rice causing serious losses in its yield. Genetic variation among populations of Scirpophaga incertulas collected from 28 hotspot locations in India was examined using the randomly amplified polymorphic DNA-polymerase chain rea...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1023/a:1002797219182
更新日期：2001-02-01 00:00:00
abstract：:Among the European fauna, the Sardinian hare (Lepus sp.) is peculiar in that it differs from all other hares inhabiting the continent. Here, we report on the variation of a 461 bp sequence of hypervariable domain 1 of the mitochondrial control region, examined in 42 hares collected throughout Sardinia and compared to ...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/s10528-007-9076-z
更新日期：2007-04-01 00:00:00
abstract：:A new hemoglobin variant found in a mother and her child was characterized by column chromatography of the tryptic hydrolysate of the aminoethylated, glycinamidated beta-chain, followed by chymotryptic digestion of the abnormal beta T-9 peptide and amino acid analyses. It was shown to be alpha2beta2 73(E17)Asp replace...
journal_title：Biochemical genetics
pub_type： 杂志文章
doi：10.1007/BF00485784
更新日期：1975-08-01 00:00:00
