2001
Dynamic molecular modeling of pathogenic mutations in the spectrin self-association domain
Zhang Z, Weed S, Gallagher P, Morrow J. Dynamic molecular modeling of pathogenic mutations in the spectrin self-association domain. Blood 2001, 98: 1645-1653. PMID: 11535493, DOI: 10.1182/blood.v98.6.1645.Peer-Reviewed Original ResearchConceptsSelf-association domainPoint mutationsHuman sequenceDrosophila alpha-spectrinDynamic molecular modelingHuman erythrocyte spectrinCytoskeletal functionSpecific point mutationsConservative substitutionsPrimary sequenceConformational rearrangementsAlpha-spectrinHelical regionHydrophilic residuesAmino acidsMutationsSpectrinSalt bridgeErythrocyte spectrinStructural consequencesPathogenic mutationsRepeat unitsMolecular modelingSequenceStructural disruption
1999
Brain and Muscle Express a Unique Alternative Transcript of αΙΙ Spectrin †
Cianci C, Zhang Z, Pradhan D, Morrow J. Brain and Muscle Express a Unique Alternative Transcript of αΙΙ Spectrin †. Biochemistry 1999, 38: 15721-15730. PMID: 10625438, DOI: 10.1021/bi991458k.Peer-Reviewed Original ResearchConceptsAlternative mRNA splicingMRNA splicingAlphaII-spectrinBp insertionNovel protein interaction siteEmbryonic tissuesInsert 2Alternative exon usageProtein interaction sitesAmino acid sequenceDifferent splice formsAmino acid insertionMouse embryonic tissuesInsert-1Amino acid substitutionsSkeletal muscleGene familyDynamic molecular modelingMature proteinUnanticipated functionAlternative splicingExon usageIndividual transcriptsAlternative transcriptsSplice forms
1997
Site-Directed Mutagenesis of αII Spectrin at Codon 1175 Modulates Its μ-Calpain Susceptibility †
Stabach P, Cianci C, Glantz S, Zhang Z, Morrow J. Site-Directed Mutagenesis of αII Spectrin at Codon 1175 Modulates Its μ-Calpain Susceptibility †. Biochemistry 1997, 36: 57-65. PMID: 8993318, DOI: 10.1021/bi962034i.Peer-Reviewed Original ResearchConceptsSite-directed mutagenesisAlpha II spectrinCalpain cleavage sitesCleavage siteII-spectrinHelix CRecombinant GST-fusion proteinsBona fide proteinGST fusion proteinTriple-helical motifsStrict substrate specificityFamily of Ca2Protein kinase CDynamic molecular modelingStructural repeatsProminent substrateDifferent amino acidsSubstrate specificityIntracellular proteolysisPenultimate residueCysteine proteasesKinase CMost proteasesSteroid receptor activationSpectrin