2019
Clinical and Biochemical Phenotypes in a Family With ENPP1 Mutations
Kotwal A, Ferrer A, Kumar R, Singh RJ, Murthy V, Schultz-Rogers L, Zimmermann M, Lanpher B, Zimmerman K, Stabach PR, Klee E, Braddock DT, Wermers RA. Clinical and Biochemical Phenotypes in a Family With ENPP1 Mutations. Journal Of Bone And Mineral Research 2019, 35: 662-670. PMID: 31826312, PMCID: PMC7771569, DOI: 10.1002/jbmr.3938.Peer-Reviewed Original ResearchConceptsAutosomal recessive hypophosphatemic rickets type 2Biallelic mutationsMonoallelic mutationsPrimary hyperparathyroidismPathogenic variantsCarotid intima-media thicknessClassic disease manifestationsNormocalcemic primary hyperparathyroidismC-terminal FGF23Intima-media thicknessWhole-exome sequencingClinical findingsArterial calcificationPeriarticular calcificationSpectrum of phenotypesIntact FGF23Disease manifestationsBilateral femursENPP1 variantsBone deformitiesBiochemical manifestationsType 2ENPP1 geneExome sequencingHyperparathyroidism
2010
Ankyrin recognizes both surface character and shape of the 14–15 di-repeat of β-spectrin
La-Borde PJ, Stabach PR, Simonović I, Morrow JS, Simonović M. Ankyrin recognizes both surface character and shape of the 14–15 di-repeat of β-spectrin. Biochemical And Biophysical Research Communications 2010, 392: 490-494. PMID: 20079712, PMCID: PMC2839365, DOI: 10.1016/j.bbrc.2010.01.046.Peer-Reviewed Original ResearchConceptsMinimal recognition motifRecognition motifMembrane protein traffickingSpectrin-based cytoskeletonDistinct recognition mechanismsSite-directed mutagenesisComplementary surface chargesHigh-affinity complexProtein traffickingMembrane organizationBeta spectrinLinker mutationsΒ-spectrinBinding surfaceIsothermal titration calorimetryAnkyrinRecognition mechanismTitration calorimetry
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