1993
Poikilocytic Hereditary Elliptocytosis Associated With Spectrin Alexandria: An al/50b Kd Variant That Is Caused by a Single Amino Acid Deletion
Gallagher P, Roberts W, Benoit L, Speicher D, Marchesi S, Forget B. Poikilocytic Hereditary Elliptocytosis Associated With Spectrin Alexandria: An al/50b Kd Variant That Is Caused by a Single Amino Acid Deletion. Blood 1993, 82: 2210-2215. PMID: 8400271, DOI: 10.1182/blood.v82.7.2210.2210.Peer-Reviewed Original ResearchConceptsRed blood cellsHereditary elliptocytosisPolymerase chain reactionHeterogeneous disorderBlood cellsSingle amino acid deletionImpaired abilityDifferent severityChain reactionKD variantAffected individualsAlpha iAbnormal peptideAmino acid deletionSpectrin dimer self-associationProteolytic cleavage sitesResidues 470KD peptidePosition 470Limited tryptic digestionAcid deletionProteolytic cleavageErythrocyte membranesAmino acid sequence analysisIndividualsPoikilocytic hereditary elliptocytosis associated with spectrin Alexandria: an alpha I/50b Kd variant that is caused by a single amino acid deletion
Gallagher P, Roberts W, Benoit L, Speicher D, Marchesi S, Forget B. Poikilocytic hereditary elliptocytosis associated with spectrin Alexandria: an alpha I/50b Kd variant that is caused by a single amino acid deletion. Blood 1993, 82: 2210-2215. DOI: 10.1182/blood.v82.7.2210.bloodjournal8272210.Peer-Reviewed Original ResearchRed blood cellsHereditary elliptocytosisPolymerase chain reactionHeterogeneous disorderBlood cellsSingle amino acid deletionImpaired abilityDifferent severityChain reactionKD variantAffected individualsAlpha iAbnormal peptideAmino acid deletionSpectrin dimer self-associationProteolytic cleavage sitesResidues 470KD peptidePosition 470Limited tryptic digestionAcid deletionProteolytic cleavageErythrocyte membranesAmino acid sequence analysisIndividuals
1992
A common type of the spectrin alpha I 46-50a-kD peptide abnormality in hereditary elliptocytosis and pyropoikilocytosis is associated with a mutation distant from the proteolytic cleavage site. Evidence for the functional importance of the triple helical model of spectrin.
Gallagher PG, Tse WT, Coetzer T, Lecomte MC, Garbarz M, Zarkowsky HS, Baruchel A, Ballas SK, Dhermy D, Palek J. A common type of the spectrin alpha I 46-50a-kD peptide abnormality in hereditary elliptocytosis and pyropoikilocytosis is associated with a mutation distant from the proteolytic cleavage site. Evidence for the functional importance of the triple helical model of spectrin. Journal Of Clinical Investigation 1992, 89: 892-898. PMID: 1541680, PMCID: PMC442935, DOI: 10.1172/jci115669.Peer-Reviewed Original ResearchConceptsProteolytic cleavage sitesAlpha-spectrin chainTriple helical modelCleavage siteHelix 2Helix-breaking proline substitutionsHereditary elliptocytosisAlpha iAlpha-spectrin geneAlpha-helical structureAmino-terminal sideHereditary pyropoikilocytosisHelical modelErythrocyte membrane proteinsLimited tryptic digestionMembrane proteinsSpectrin repeatsDNA sequencesSpectrin chainsHelix 3Position 207Leucine residuesFunctional importanceProline substitutionPoint mutations