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    |
| PR:000000382 | BMP receptor type-1A isoform 1 phosphorylated form | | |  | | |
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| PR:000000498 | BMP receptor type-1A isoform 1 phosphorylated 1 | | |  | | |
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| PR:000036422 | BMP receptor type-1A isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:000036423 | BMP receptor type-1A isoform 1 phosphorylated 1 (mouse) | | |  | | |
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| PR:000000499 | BMP receptor type-1A isoform 1 phosphorylated 2 | | |  | | |
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| PR:000036424 | BMP receptor type-1A isoform 1 phosphorylated 2 (human) | | |  | | |
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| PR:P36894-1 | bone morphogenetic protein receptor type-1A isoform 1 (human) | | |  | | |
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| PR:000036422 | BMP receptor type-1A isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:000036424 | BMP receptor type-1A isoform 1 phosphorylated 2 (human) | | |  | | |
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| PR:P36895-1 | bone morphogenetic protein receptor type-1A isoform 1 (mouse) | | |  | | |
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| PR:000036423 | BMP receptor type-1A isoform 1 phosphorylated 1 (mouse) | | |  | | |
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| PR:P36894 | bone morphogenetic protein receptor type-1A (human) | | |  | | |
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| PR:000000141 | BMP receptor type-1A sequence variant A338D (human) | | |  | | |
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| PR:000000139 | BMP receptor type-1A sequence variant C124R (human) | | |  | | |
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| PR:000000140 | BMP receptor type-1A sequence variant C130R (human) | | |  | | |
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| PR:000000142 | BMP receptor type-1A sequence variant C376Y (human) | | |  | | |
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| PR:000000138 | BMP receptor type-1A sequence variant C82Y (human) | | |  | | |
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| PR:000000144 | BMP receptor type-1A sequence variant M470T (human) | | |  | | |
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| PR:000000143 | BMP receptor type-1A sequence variant R443C (human) | | |  | | |
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| PR:000000137 | BMP receptor type-1A sequence variant Y62D (human) | | |  | | |
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| PR:P36894-1 | bone morphogenetic protein receptor type-1A isoform 1 (human) | | |  | | |
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| PR:000036422 | BMP receptor type-1A isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:000036424 | BMP receptor type-1A isoform 1 phosphorylated 2 (human) | | |  | | |
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| PR:000046493 | bone morphogenetic protein receptor type-1A, signal peptide removed form (human) | | |  | | |
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| PR:000046494 | bone morphogenetic protein receptor type-1A, signal peptide removed phosphorylated 2 (human) | | |  | | |
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| PR:P36895 | bone morphogenetic protein receptor type-1A (mouse) | | |  | | |
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| PR:P36895-1 | bone morphogenetic protein receptor type-1A isoform 1 (mouse) | | |  | | |
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| PR:000036423 | BMP receptor type-1A isoform 1 phosphorylated 1 (mouse) | | |  | | |
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| PR:Q78EA7 | bone morphogenetic protein receptor type-1A (rat) | | |  | | |
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| PR:000000383 | BMP receptor type-1B isoform 1 phosphorylated form | | |  | | |
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| PR:000000500 | BMP receptor type-1B isoform 1 phosphorylated 1 | | |  | | |
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| PR:000036426 | BMP receptor type-1B isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:000036425 | BMP receptor type-1B isoform 1 phosphorylated 1 (mouse) | | |  | | |
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| PR:O00238-1 | bone morphogenetic protein receptor type-1B isoform 1 (human) | | |  | | |
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| PR:000036426 | BMP receptor type-1B isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:P36898-1 | bone morphogenetic protein receptor type-1B isoform 1 (mouse) | | |  | | |
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| PR:000036425 | BMP receptor type-1B isoform 1 phosphorylated 1 (mouse) | | |  | | |
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| PR:Q05438 | bone morphogenetic protein receptor type-1B (chicken) | | |  | | |
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| PR:O00238 | bone morphogenetic protein receptor type-1B (human) | | |  | | |
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| PR:000000146 | BMP receptor type-1B sequence variant I200K (human) | | |  | | |
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| PR:000000147 | BMP receptor type-1B sequence variant R486W (human) | | |  | | |
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| PR:O00238-1 | bone morphogenetic protein receptor type-1B isoform 1 (human) | | |  | | |
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| PR:000036426 | BMP receptor type-1B isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:O00238-2 | bone morphogenetic protein receptor type-1B isoform h2 (human) | | |  | | |
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| PR:000046495 | bone morphogenetic protein receptor type-1B, signal peptide removed form (human) | | |  | | |
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| PR:000046496 | bone morphogenetic protein receptor type-1B, signal peptide removed phosphoserine(4+) form (human) | | |  | | |
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| PR:P36898 | bone morphogenetic protein receptor type-1B (mouse) | | |  | | |
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| PR:P36898-1 | bone morphogenetic protein receptor type-1B isoform 1 (mouse) | | |  | | |
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| PR:000036425 | BMP receptor type-1B isoform 1 phosphorylated 1 (mouse) | | |  | | |
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| PR:Q569A5 | receptor protein serine/threonine kinase (rat) | | |  | | |
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| PR:Q09488 | serine/threonine-protein kinase receptor sma-6 (worm) | | |  | | |
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| PR:000075184 | TGF-beta receptor type-1 cysteinylated 1 (human) | | |  | | |
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| PR:000036432 | TGF-beta receptor type-1 isoform 1, signal peptide removed form (human) | | |  | | |
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| PR:000025959 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:P36897-2 | TGF-beta receptor type-1 isoform h2 (human) | | |  | | |
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| PR:P36897-3 | TGF-beta receptor type-1 isoform h3 (human) | | |  | | |
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| |
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    |
| PR:000000187 | TGF-beta receptor type-1 sequence variant 10 (human) | | |  | | |
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| PR:000000188 | TGF-beta receptor type-1 sequence variant 11 (human) | | |  | | |
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| PR:000000193 | TGF-beta receptor type-1 sequence variant D400G (human) | | |  | | |
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| PR:000000189 | TGF-beta receptor type-1 sequence variant K232E (human) | | |  | | |
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| PR:000000192 | TGF-beta receptor type-1 sequence variant M318R (human) | | |  | | |
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| PR:000000191 | TGF-beta receptor type-1 sequence variant N267H (human) | | |  | | |
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| PR:000000195 | TGF-beta receptor type-1 sequence variant R487E (human) | | |  | | |
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| PR:000000194 | TGF-beta receptor type-1 sequence variant R487P (human) | | |  | | |
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| PR:000000196 | TGF-beta receptor type-1 sequence variant R487W (human) | | |  | | |
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| PR:000000190 | TGF-beta receptor type-1 sequence variant S241L (human) | | |  | | |
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| PR:000000186 | TGF-beta receptor type-1 sequence variant T200I (human) | | |  | | |
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| PR:000049432 | TGF-beta receptor type-1, signal peptide removed form (human) | | |  | | |
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| PR:000036432 | TGF-beta receptor type-1 isoform 1, signal peptide removed form (human) | | |  | | |
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| PR:000025959 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000063489 | TGF-beta receptor type-1 sequence variant C41Y, signal peptide removed form (human) | | |  | | |
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| PR:000060809 | TGF-beta receptor type-1 sequence variant G52R, signal peptide removed form (human) | | |  | | |
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| PR:000063569 | TGF-beta receptor type-1 sequence variant N45S, signal peptide removed form (human) | | |  | | |
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| PR:000061254 | TGF-beta receptor type-1 sequence variant P83L, signal peptide removed form (human) | | |  | | |
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| PR:000061891 | TGF-beta receptor type-1 sequence variant P83S, signal peptide removed form (human) | | |  | | |
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| PR:000060890 | TGF-beta receptor type-1 sequence variant R414*, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000064307 | TGF-beta receptor type-1 sequence variant W242*, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000049433 | TGF-beta receptor type-1, signal peptide removed ubiquitinated form (human) | | |  | | |
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| PR:000049433 | TGF-beta receptor type-1, signal peptide removed ubiquitinated form (human) | | |  | | |
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| PR:000036434 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (mouse) | | |  | | |
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| PR:Q64729-2 | TGF-beta receptor type-1 isoform m2 (mouse) | | |  | | |
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| PR:000036432 | TGF-beta receptor type-1 isoform 1, signal peptide removed form (human) | | |  | | |
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| PR:000025959 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000036434 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (mouse) | | |  | | |
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| PR:000000522 | TGF-beta receptor type-1 isoform 1, signal peptide removed form | | |  | | |
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| PR:000036432 | TGF-beta receptor type-1 isoform 1, signal peptide removed form (human) | | |  | | |
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| PR:000025959 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000003173 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated and ubiquitinated form | | |  | | |
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| PR:000000408 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated form | | |  | | |
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| PR:000000523 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 | | |  | | |
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| PR:000025959 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000036434 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (mouse) | | |  | | |
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| PR:000003173 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated and ubiquitinated form | | |  | | |
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| PR:000025411 | TGF-beta receptor type-1 proteolytic cleavage product | | |  | | |
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| PR:000025932 | TGF-beta receptor type-1, signal peptide removed form | | |  | | |
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| PR:000000522 | TGF-beta receptor type-1 isoform 1, signal peptide removed form | | |  | | |
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| PR:000036432 | TGF-beta receptor type-1 isoform 1, signal peptide removed form (human) | | |  | | |
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| PR:000025959 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000003173 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated and ubiquitinated form | | |  | | |
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| PR:000000408 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated form | | |  | | |
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| PR:000000523 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 | | |  | | |
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| PR:000025959 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000036434 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (mouse) | | |  | | |
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| PR:000003173 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated and ubiquitinated form | | |  | | |
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| PR:000049432 | TGF-beta receptor type-1, signal peptide removed form (human) | | |  | | |
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| PR:000036432 | TGF-beta receptor type-1 isoform 1, signal peptide removed form (human) | | |  | | |
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| PR:000025959 | TGF-beta receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000063489 | TGF-beta receptor type-1 sequence variant C41Y, signal peptide removed form (human) | | |  | | |
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| PR:000060809 | TGF-beta receptor type-1 sequence variant G52R, signal peptide removed form (human) | | |  | | |
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| PR:000063569 | TGF-beta receptor type-1 sequence variant N45S, signal peptide removed form (human) | | |  | | |
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| PR:000061254 | TGF-beta receptor type-1 sequence variant P83L, signal peptide removed form (human) | | |  | | |
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| PR:000061891 | TGF-beta receptor type-1 sequence variant P83S, signal peptide removed form (human) | | |  | | |
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| PR:000060890 | TGF-beta receptor type-1 sequence variant R414*, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000064307 | TGF-beta receptor type-1 sequence variant W242*, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000049433 | TGF-beta receptor type-1, signal peptide removed ubiquitinated form (human) | | |  | | |
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| PR:P37023 | activin receptor type-1-like (human) | | |  | | |
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| PR:000067378 | activin receptor type-1-like deaminated 1 (human) | | |  | | |
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| PR:P37023-1 | activin receptor type-1-like isoform 1 (human) | | |  | | |
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| PR:000000326 | activin receptor type-1-like sequence variant A306P (human) | | |  | | |
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| PR:000000332 | activin receptor type-1-like sequence variant A347P (human) | | |  | | |
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| PR:000000352 | activin receptor type-1-like sequence variant A482V (human) | | |  | | |
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| PR:000000331 | activin receptor type-1-like sequence variant C344Y (human) | | |  | | |
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| PR:000000339 | activin receptor type-1-like sequence variant C51Y (human) | | |  | | |
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| PR:000000357 | activin receptor type-1-like sequence variant C77W (human) | | |  | | |
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| PR:000000359 | activin receptor type-1-like sequence variant D179A (human) | | |  | | |
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| PR:000000323 | activin receptor type-1-like sequence variant D254del (human) | | |  | | |
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| PR:000000338 | activin receptor type-1-like sequence variant D397G (human) | | |  | | |
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| PR:000000318 | activin receptor type-1-like sequence variant E215K (human) | | |  | | |
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| PR:000000336 | activin receptor type-1-like sequence variant E379K (human) | | |  | | |
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| PR:000000342 | activin receptor type-1-like sequence variant E407D (human) | | |  | | |
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| PR:000000347 | activin receptor type-1-like sequence variant F425L (human) | | |  | | |
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| PR:000000348 | activin receptor type-1-like sequence variant F425V (human) | | |  | | |
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| PR:000000349 | activin receptor type-1-like sequence variant F425del (human) | | |  | | |
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| PR:000000360 | activin receptor type-1-like sequence variant G211D (human) | | |  | | |
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| PR:000000321 | activin receptor type-1-like sequence variant G223R (human) | | |  | | |
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| PR:000000317 | activin receptor type-1-like sequence variant G48R (human) | | |  | | |
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| PR:000000355 | activin receptor type-1-like sequence variant GA48/49EP (human) | | |  | | |
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| PR:000000319 | activin receptor type-1-like sequence variant H222del (human) | | |  | | |
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| PR:000000327 | activin receptor type-1-like sequence variant H314Y (human) | | |  | | |
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| PR:000000340 | activin receptor type-1-like sequence variant I398N (human) | | |  | | |
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| PR:000000322 | activin receptor type-1-like sequence variant K229R (human) | | |  | | |
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| PR:000000354 | activin receptor type-1-like sequence variant K487T (human) | | |  | | |
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    |
| PR:000000325 | activin receptor type-1-like sequence variant L285F (human) | | |  | | |
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| PR:000000330 | activin receptor type-1-like sequence variant L337P (human) | | |  | | |
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| PR:000000337 | activin receptor type-1-like sequence variant M376R (human) | | |  | | |
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| PR:000000324 | activin receptor type-1-like sequence variant M376V (human) | | |  | | |
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| PR:000000358 | activin receptor type-1-like sequence variant N96D (human) | | |  | | |
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    |
| PR:000000335 | activin receptor type-1-like sequence variant P378L (human) | | |  | | |
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    |
| PR:000000346 | activin receptor type-1-like sequence variant P424T (human) | | |  | | |
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| PR:000000333 | activin receptor type-1-like sequence variant R374Q (human) | | |  | | |
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| PR:000000334 | activin receptor type-1-like sequence variant R374W (human) | | |  | | |
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| PR:000000343 | activin receptor type-1-like sequence variant R411P (human) | | |  | | |
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| PR:000000344 | activin receptor type-1-like sequence variant R411Q (human) | | |  | | |
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| PR:000000345 | activin receptor type-1-like sequence variant R411W (human) | | |  | | |
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| PR:000000351 | activin receptor type-1-like sequence variant R479L (human) | | |  | | |
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| PR:000000353 | activin receptor type-1-like sequence variant R484W (human) | | |  | | |
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| PR:000000350 | activin receptor type-1-like sequence variant R67Q (human) | | |  | | |
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| PR:000000356 | activin receptor type-1-like sequence variant R67W (human) | | |  | | |
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    |
| PR:000000320 | activin receptor type-1-like sequence variant S233del (human) | | |  | | |
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| PR:000000329 | activin receptor type-1-like sequence variant S333I (human) | | |  | | |
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    |
| PR:000000341 | activin receptor type-1-like sequence variant W399S (human) | | |  | | |
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    |
| PR:000000328 | activin receptor type-1-like sequence variant W50C (human) | | |  | | |
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    |
| PR:000064347 | activin receptor type-1-like, signal peptide removed form (human) | | |  | | |
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    |
| PR:Q61288 | activin receptor type-1-like (mouse) | | |  | | |
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| PR:Q61288-1 | activin receptor type-1-like isoform 1 (mouse) | | |  | | |
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| PR:P37023-1 | activin receptor type-1-like isoform 1 (human) | | |  | | |
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| PR:Q61288-1 | activin receptor type-1-like isoform 1 (mouse) | | |  | | |
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| PR:000036437 | activin receptor type-1B isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:000036438 | activin receptor type-1B isoform 1 phosphorylated 2 (human) | | |  | | |
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| PR:P36896-4 | activin receptor type-1B isoform h4 (human) | | |  | | |
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| PR:P36896-5 | activin receptor type-1B isoform h5 (human) | | |  | | |
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| PR:000046256 | activin receptor type-1B, signal peptide removed form (human) | | |  | | |
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| PR:000046257 | activin receptor type-1B, signal peptide removed phosphorylated 3 (human) | | |  | | |
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| PR:000036437 | activin receptor type-1B isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:000036438 | activin receptor type-1B isoform 1 phosphorylated 2 (human) | | |  | | |
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| PR:000000412 | activin receptor type-1B isoform 1 phosphorylated form | | |  | | |
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| PR:000000525 | activin receptor type-1B isoform 1 phosphorylated 1 | | |  | | |
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| PR:000036437 | activin receptor type-1B isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:000000526 | activin receptor type-1B isoform 1 phosphorylated 2 | | |  | | |
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| PR:000036438 | activin receptor type-1B isoform 1 phosphorylated 2 (human) | | |  | | |
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| PR:000036439 | activin receptor type-1C isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:000060490 | activin receptor type-1C, signal peptide removed form (human) | | |  | | |
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| PR:000063700 | activin receptor type-1C, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:A2AJR6 | activin receptor type-1C isoform 2 (mouse) | | |  | | |
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| PR:A2AJR5 | activin receptor type-1C isoform 3 (mouse) | | |  | | |
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| PR:000036439 | activin receptor type-1C isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:000000413 | activin receptor type-1C isoform 1 phosphorylated form | | |  | | |
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| PR:000000527 | activin receptor type-1C isoform 1 phosphorylated 1 | | |  | | |
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| PR:000036439 | activin receptor type-1C isoform 1 phosphorylated 1 (human) | | |  | | |
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| PR:A2AJR6 | activin receptor type-1C isoform 2 (mouse) | | |  | | |
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| PR:A2AJR5 | activin receptor type-1C isoform 3 (mouse) | | |  | | |
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| PR:000068633 | activin receptor type-1 cysteinylated 1 (human) | | |  | | |
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| PR:000036435 | activin receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000000200 | activin receptor type-1 sequence variant R206H (human) | | |  | | |
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| PR:000036436 | activin receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (mouse) | | |  | | |
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| PR:000036435 | activin receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000036436 | activin receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (mouse) | | |  | | |
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| PR:000021938 | activin receptor type-1 isoform 1, signal peptide removed form | | |  | | |
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| PR:000000411 | activin receptor type-1 isoform 1, signal peptide removed phosphorylated form | | |  | | |
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| PR:000000524 | activin receptor type-1 isoform 1, signal peptide removed phosphorylated 1 | | |  | | |
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| PR:000036435 | activin receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (human) | | |  | | |
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| PR:000036436 | activin receptor type-1 isoform 1, signal peptide removed phosphorylated 1 (mouse) | | |  | | |