Sera Prognostics, Inc.

Prolexys Pharmaceuticals, Inc.

John Jay Boniface

Paul Edward Kearney

Tracey Cristine Fleischer

Ashoka Dharmapriya Polpitiya

Durlin Edward Hickok

Gregory Charles Critchfield

Andrew Gassman

Chad Bradford

Jeff Flick

Moritz Von Rechenberg

Paul B Robbins

John M Peltier

Justin Savage

Vladimir Kery

Julja Burchard

Ashoka Polpitiya

The disclosure provides a pair of isolated biomarkers selected from the group consisting of IBP4/SHBG, IBP4/PSG3, IBP4/LYAM1, IBP4/IGF2, CLUS/IBP3, CLUS/IGF2, CLUS/LYAM1, INHBC/PSG3, INHBC/IGF2, PSG2/LYAM1, PSG2/IGF2, PSG2/LYAM1, PEDF/PSG3, PEDF/SHBG, PEDF/LYAM1, CD14/LYAM1, and APOC3/LYAM1, wherein the pair of biomarkers exhibits a change in reversal value between pregnant females at risk for pre-term birth and term controls. Also provided is a method of determining probability for preterm birth in a pregnant female, the method comprising measuring in a biological sample obtained from the pregnant female a reversal value for at least one pair of biomarkers selected from the group consisting of IBP4/SHBG, IBP4/PSG3, IBP4/LYAM1, IBP4/IGF2, CLUS/IBP3, CLUS/IGF2, CLUS/LYAM1, INHBC/PSG3, INHBC/IGF2, PSG2/LYAM1, PSG2/IGF2, PSG2/LYAM1, PEDF/PSG3, PEDF/SHBG, PEDF/LYAM1, CD14/LYAM1, and APOC3/LYAM1 to determine the probability for preterm birth in the pregnant female.

Biomarker pairs for predicting preterm birth

Compositions and methods for predicting due date and time to birth for a pregnancy with significantly higher accuracy than current clinical methods. The compositions and methods for predicting due date and time to birth for a pregnancy can also identify those pregnancies that will deliver earlier than the due date derived from Last Menstrual Period (LMP) and/or obstetric ultrasonography (US) dating.

Pregnancy clock proteins for predicting due date and time to birth

The present invention provides a method for purifying a protein complex and the components comprising the complex from a cell, a cell or tissue lysate or a whole organism by employing a combined set of affinity tags of high affinity, specificity and ease of elution. The method involves using a protein or a peptide modified to contain one or more affinity tags separated by one or more specific protease cleavage sites to isolate any interacting proteins or fragments thereof. Specifically exemplified is a method employing a modified bait containing AviTag or GST and a removal tag of Hishexapeptide positioned proximal to the bait such that any excess bait can be efficiently removed from the purified complex yielding enriched interacting proteins prior to subjecting the complex for further identification of individual components. The identification of the proteins or fragments thereof contained in the protein complex will provide new targets for the identification of new pharmaceuticals and diagnostic tools.

Method for purification of a protein complex and identification of its components

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Salt Lake City, UT, United States of America

John Jay Boniface