6Z9G:
reference: Exploring the gas access routes in a [NiFeSe] hydrogenase using crystals pressurized with krypton and oxygen., Zacarias S, Temporao A, Carpentier P, van der Linden P, Pereira IAC, Matias PM, J Biol Inorg Chem. 2020 Aug 31. pii: 10.1007/s00775-020-01814-y. doi:, 10.1007/s00775-020-01814-y. PMID: 32865640

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