Specific proteolytic cleavage of
125I-labeled IGFBP-4 is described in detail elsewhere
49 (link). Briefly, the PAPP-A:STC2 complex mixtures were diluted (1:190) to a concentration of 145 pM PAPP-A and mixed with preincubated
125I-IGFBP4 (10 nM) and IGF-1 (100 nM) in 50 mM Tris-HCl, 100 mM NaCl, 1 mM CaCl
2. Following 1 h incubation at 37°C, reactions were terminated by the addition of SDS-PAGE sample buffer supplemented with 25 mM EDTA. Substrate and co-migrating cleavage products were separated by 12% nonreducing SDS-PAGE and visualized by autoradiography using a
storage phosphor screen (GE Healthcare) and a
Typhoon imaging system (GE Healthcare). Band intensities were quantified using
ImageQuant TL 8.1 software (GE Healthcare).
Marouli E., Graff M., Medina-Gomez C., Lo K.S., Wood A.R., Kjaer T.R., Fine R.S., Lu Y., Schurmann C., Highland H.M., Rüeger S., Thorleifsson G., Justice A.E., Lamparter D., Stirrups K.E., Turcot V., Young K.L., Winkler T.W., Esko T., Karaderi T., Locke A.E., Masca N.G., Ng M.C., Mudgal P., Rivas M.A., Vedantam S., Mahajan A., Guo X., Abecasis G., Aben K.K., Adair L.S., Alam D.S., Albrecht E., Allin K.H., Allison M., Amouyel P., Appel E.V., Arveiler D., Asselbergs F.W., Auer P.L., Balkau B., Banas B., Bang L.E., Benn M., Bergmann S., Bielak L.F., Blüher M., Boeing H., Boerwinkle E., Böger C.A., Bonnycastle L.L., Bork-Jensen J., Bots M.L., Bottinger E.P., Bowden D.W., Brandslund I., Breen G., Brilliant M.H., Broer L., Burt A.A., Butterworth A.S., Carey D.J., Caulfield M.J., Chambers J.C., Chasman D.I., Chen Y.D., Chowdhury R., Christensen C., Chu A.Y., Cocca M., Collins F.S., Cook J.P., Corley J., Galbany J.C., Cox A.J., Cuellar-Partida G., Danesh J., Davies G., de Bakker P.I., de Borst G.J., de Denus S., de Groot M.C., de Mutsert R., Deary I.J., Dedoussis G., Demerath E.W., den Hollander A.I., Dennis J.G., Di Angelantonio E., Drenos F., Du M., Dunning A.M., Easton D.F., Ebeling T., Edwards T.L., Ellinor P.T., Elliott P., Evangelou E., Farmaki A.E., Faul J.D., Feitosa M.F., Feng S., Ferrannini E., Ferrario M.M., Ferrieres J., Florez J.C., Ford I., Fornage M., Franks P.W., Frikke-Schmidt R., Galesloot T.E., Gan W., Gandin I., Gasparini P., Giedraitis V., Giri A., Girotto G., Gordon S.D., Gordon-Larsen P., Gorski M., Grarup N., Grove M.L., Gudnason V., Gustafsson S., Hansen T., Harris K.M., Harris T.B., Hattersley A.T., Hayward C., He L., Heid I.M., Heikkilä K., Helgeland Ø., Hernesniemi J., Hewitt A.W., Hocking L.J., Hollensted M., Holmen O.L., Hovingh G.K., Howson J.M., Hoyng C.B., Huang P.L., Hveem K., Ikram M.A., Ingelsson E., Jackson A.U., Jansson J.H., Jarvik G.P., Jensen G.B., Jhun M.A., Jia Y., Jiang X., Johansson S., Jørgensen M.E., Jørgensen T., Jousilahti P., Jukema J.W., Kahali B., Kahn R.S., Kähönen M., Kamstrup P.R., Kanoni S., Kaprio J., Karaleftheri M., Kardia S.L., Karpe F., Kee F., Keeman R., Kiemeney L.A., Kitajima H., Kluivers K.B., Kocher T., Komulainen P., Kontto J., Kooner J.S., Kooperberg C., Kovacs P., Kriebel J., Kuivaniemi H., Küry S., Kuusisto J., La Bianca M., Laakso M., Lakka T.A., Lange E.M., Lange L.A., Langefeld C.D., Langenberg C., Larson E.B., Lee I.T., Lehtimäki T., Lewis C.E., Li H., Li J., Li-Gao R., Lin H., Lin L.A., Lin X., Lind L., Lindström J., Linneberg A., Liu Y., Liu Y., Lophatananon A., Luan J., Lubitz S.A., Lyytikäinen L.P., Mackey D.A., Madden P.A., Manning A.K., Männistö S., Marenne G., Marten J., Martin N.G., Mazul A.L., Meidtner K., Metspalu A., Mitchell P., Mohlke K.L., Mook-Kanamori D.O., Morgan A., Morris A.D., Morris A.P., Müller-Nurasyid M., Munroe P.B., Nalls M.A., Nauck M., Nelson C.P., Neville M., Nielsen S.F., Nikus K., Njølstad P.R., Nordestgaard B.G., Ntalla I., O'Connel J.R., Oksa H., Loohuis L.M., Ophoff R.A., Owen K.R., Packard C.J., Padmanabhan S., Palmer C.N., Pasterkamp G., Patel A.P., Pattie A., Pedersen O., Peissig P.L., Peloso G.M., Pennell C.E., Perola M., Perry J.A., Perry J.R., Person T.N., Pirie A., Polasek O., Posthuma D., Raitakari O.T., Rasheed A., Rauramaa R., Reilly D.F., Reiner A.P., Renström F., Ridker P.M., Rioux J.D., Robertson N., Robino A., Rolandsson O., Rudan I., Ruth K.S., Saleheen D., Salomaa V., Samani N.J., Sandow K., Sapkota Y., Sattar N., Schmidt M.K., Schreiner P.J., Schulze M.B., Scott R.A., Segura-Lepe M.P., Shah S., Sim X., Sivapalaratnam S., Small K.S., Smith A.V., Smith J.A., Southam L., Spector T.D., Speliotes E.K., Starr J.M., Steinthorsdottir V., Stringham H.M., Stumvoll M., Surendran P., Hart L.M., Tansey K.E., Tardif J.C., Taylor K.D., Teumer A., Thompson D.J., Thorsteinsdottir U., Thuesen B.H., Tönjes A., Tromp G., Trompet S., Tsafantakis E., Tuomilehto J., Tybjaerg-Hansen A., Tyrer J.P., Uher R., Uitterlinden A.G., Ulivi S., van der Laan S.W., Van Der Leij A.R., van Duijn C.M., van Schoor N.M., van Setten J., Varbo A., Varga T.V., Varma R., Edwards D.R., Vermeulen S.H., Vestergaard H., Vitart V., Vogt T.F., Vozzi D., Walker M., Wang F., Wang C.A., Wang S., Wang Y., Wareham N.J., Warren H.R., Wessel J., Willems S.M., Wilson J.G., Witte D.R., Woods M.O., Wu Y., Yaghootkar H., Yao J., Yao P., Yerges-Armstrong L.M., Young R., Zeggini E., Zhan X., Zhang W., Zhao J.H., Zhao W., Zhao W., Zheng H., Zhou W., Rotter J.I., Boehnke M., Kathiresan S., McCarthy M.I., Willer C.J., Stefansson K., Borecki I.B., Liu D.J., North K.E., Heard-Costa N.L., Pers T.H., Lindgren C.M., Oxvig C., Kutalik Z., Rivadeneira F., Loos R.J., Frayling T.M., Hirschhorn J.N., Deloukas P, & Lettre G. (2017). Rare and low-frequency coding variants alter human adult height. Nature, 542(7640), 186-190.