Parvalbumin Alpha (PRVA)
By binding calcium ions, allows muscles to relax when contraction is over.

Human (Homo sapiens)
Monkey (Macaca fuscata fuscata), Japanese macaque						Mouse (Mus musculus)
Bull frog (Rana catesbeiana)
Common carp (Cyprinus carpio)
Thornback ray (Raja clavata)

>Human
SMTDLLNAEDIKKAVGAFSATDSFDHKKFFQMVGLKKKSADDVKKVFHMLDKDKSGFIEE
DELGFILKGFSPDARDLSAKETKMLMAAGDKDGDGKIGVDEFSTLVAES

>Japanese_macaque
SMTDLLNAEDIKKAVGAFSAIDSFDHKKFFQMVGLKKKSADDVKKVFHILDKDKSGFIEE
DELGFILKGFSPDARDLSAKETKTLMAAGDKDGDGKIGVDEFSTLVAES

>Mouse
SMTDVLSAEDIKKAIGAFAAADSFDHKKFFQMVGLKKKNPDEVKKVFHILDKDKSGFIEE
DELGSILKGFSSDARDLSAKETKTLLAAGDKDGDGKIGVEEFSTLVAES

>Bull_frog
MHMTDVLPAGDISKAVEAFAAPDSFNHKKFFEMCGLKSKGPDVMKQVFGILDQDRSGFIE
EDELCLMLKGFTPNARSLSVKETTALLAAGDKDGDGKIGMDEFVTLVSES

>Carp
AYGGILNDADITAALEACXAXDSFNAKSFFAKVGLSAKTPDDIKKAFAVIDQDKSGFIEE
DELKLFLQNFSAGARALTDAETKAFLKAGDSDGDGKIGVDEFAALVKA

>Ray
SSKITSILNPADITKALEQCAAGFHHTAFFKASGLSKKSDAELAEIFNVLDGDQSGYIEV
EELKNFLKCFSDGARVLNDKETSNFLAAGDSDGDHKIGVDEFKSMAKMT