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PHAX

Gene
PHAX
Protein
Phosphorylated adapter RNA export protein
Organism
Gallus gallus
Length
399 amino acids
Function
Probably involved in protein and RNA export from the nucleus.
Similarity
Belongs to the PHAX family.
Mass
45.393 kDa
Sequence
MALEVRRMEGDVEDGELSDSDSDMPGAGSPRERQQKSNDGSNAGRPFQSSISSGVPDVPYRTTKSVDSSDESFSESDDDSSLWKRKRQKCFNFPPAKCEPFPLNQSHAKQTALGGKKVNNIWGMVLQEQNQDAVATELGILGMDGSIDRSRQSETYNYLLAKKLMKEAQQKEAETLDKELDEYMHDDKKTLPAEEENGQGFLKRKRSVKDRLGERQEMKYKGRYEITEEDSEEKVADEIAYRLCEPKKDLIARVVKIIGKRKAIELLMETAEVEQNGGLFIVNGTRRRTPGGVYLNLLKNTPSIKEEQIKEIFYLENQKEYENKKAAKKRRIQVLGKKMKKAIKGLNLQEYDDASRETFASDTNEALASLDDLQDGHHEAKMEHEDIIEIDNAHDLEIF

Gene
PHAX
Protein
Phosphorylated adapter RNA export protein
Organism
Bos taurus
Length
394 amino acids
Function
A phosphoprotein adapter involved in the XPO1-mediated U snRNA export from the nucleus. Bridge components required for U snRNA export, the cap binding complex (CBC)-bound snRNA on the one hand and the GTPase Ran in its active GTP-bound form together with the export receptor XPO1 on the other. Its phosphorylation in the nucleus is required for U snRNA export complex assembly and export, while its dephosphorylation in the cytoplasm causes export complex disassembly. It is recycled back to the nucleus via the importin alpha/beta heterodimeric import receptor. The directionality of nuclear export is thought to be conferred by an asymmetric distribution of the GTP- and GDP-bound forms of Ran between the cytoplasm and nucleus. Its compartmentalized phosphorylation cycle may also contribute to the directionality of export. Binds strongly to m7G-capped U1 and U5 small nuclear RNAs (snRNAs) in a sequence-unspecific manner and phosphorylation-independent manner. Plays also a role in the biogenesis of U3 small nucleolar RNA (snoRNA). Involved in the U3 snoRNA transport from nucleoplasm to Cajal bodies. Binds strongly to m7G-capped U3, U8 and U13 precursor snoRNAs and weakly to trimethylated (TMG)-capped U3, U8 and U13 snoRNAs. Binds also to telomerase RNA (By similarity).
Similarity
Belongs to the PHAX family.
Mass
44.578 kDa
Sequence
MAQEAGDMDDGQVSDSDSDMTVAPSDRPLPVPKALGGDCGLRPFQSTATACAPASHYRTVKSVDSSEESFSDSDDDSSVWKRKRQKCFNTPPKPEPFQFDQSSQKPPIAGRKKVNNIWSAVLQEQNQDAVATELGILGMEGTIDRSRQSETYNYLLAKKLKRESQEHTKELDKELEEYMHGGKKTGPKEEENGQGHPKRKRPVKDRVGDRLEMNYKGRYEITEDDSQERVADEISFRLQEPKKDLIARVVRIIGNKKAIELLMETAEVEQNGGLFIMNGSRRRTPGGVFLNLLKNTPSISEEQIKDIFYLENQKEYENKKAARKRRIQVMGKKMKQAIKNLNFQEDDDTSRETFASDTNEALASLDESQEGHGETKLDAEEAIEVDHSHDLDMF

Gene
PHAX
Protein
Phosphorylated adapter RNA export protein
Organism
Homo sapiens
Length
394 amino acids
Function
A phosphoprotein adapter involved in the XPO1-mediated U snRNA export from the nucleus. Bridge components required for U snRNA export, the cap binding complex (CBC)-bound snRNA on the one hand and the GTPase Ran in its active GTP-bound form together with the export receptor XPO1 on the other. Its phosphorylation in the nucleus is required for U snRNA export complex assembly and export, while its dephosphorylation in the cytoplasm causes export complex disassembly. It is recycled back to the nucleus via the importin alpha/beta heterodimeric import receptor. The directionality of nuclear export is thought to be conferred by an asymmetric distribution of the GTP- and GDP-bound forms of Ran between the cytoplasm and nucleus. Its compartmentalized phosphorylation cycle may also contribute to the directionality of export. Binds strongly to m7G-capped U1 and U5 small nuclear RNAs (snRNAs) in a sequence-unspecific manner and phosphorylation-independent manner (By similarity). Plays also a role in the biogenesis of U3 small nucleolar RNA (snoRNA). Involved in the U3 snoRNA transport from nucleoplasm to Cajal bodies. Binds strongly to m7G-capped U3, U8 and U13 precursor snoRNAs and weakly to trimethylated (TMG)-capped U3, U8 and U13 snoRNAs. Binds also to telomerase RNA.
Similarity
Belongs to the PHAX family.
Mass
44.403 kDa
Sequence
MALEVGDMEDGQLSDSDSDMTVAPSDRPLQLPKVLGGDSAMRAFQNTATACAPVSHYRAVESVDSSEESFSDSDDDSCLWKRKRQKCFNPPPKPEPFQFGQSSQKPPVAGGKKINNIWGAVLQEQNQDAVATELGILGMEGTIDRSRQSETYNYLLAKKLRKESQEHTKDLDKELDEYMHGGKKMGSKEEENGQGHLKRKRPVKDRLGNRPEMNYKGRYEITAEDSQEKVADEISFRLQEPKKDLIARVVRIIGNKKAIELLMETAEVEQNGGLFIMNGSRRRTPGGVFLNLLKNTPSISEEQIKDIFYIENQKEYENKKAARKRRTQVLGKKMKQAIKSLNFQEDDDTSRETFASDTNEALASLDESQEGHAEAKLEAEEAIEVDHSHDLDIF

Gene
Phax
Protein
Phosphorylated adapter RNA export protein
Organism
Mus musculus
Length
385 amino acids
Function
A phosphoprotein adapter involved in the XPO1-mediated U snRNA export from the nucleus. Bridge components required for U snRNA export, the cap binding complex (CBC)-bound snRNA on the one hand and the GTPase Ran in its active GTP-bound form together with the export receptor XPO1 on the other. Its phosphorylation in the nucleus is required for U snRNA export complex assembly and export, while its dephosphorylation in the cytoplasm causes export complex disassembly. It is recycled back to the nucleus via the importin alpha/beta heterodimeric import receptor. The directionality of nuclear export is thought to be conferred by an asymmetric distribution of the GTP- and GDP-bound forms of Ran between the cytoplasm and nucleus. Its compartmentalized phosphorylation cycle may also contribute to the directionality of export. Binds strongly to m7G-capped U1 and U5 small nuclear RNAs (snRNAs) in a sequence-unspecific manner and phosphorylation-independent manner. Plays also a role in the biogenesis of U3 small nucleolar RNA (snoRNA). Involved in the U3 snoRNA transport from nucleoplasm to Cajal bodies. Binds strongly to m7G-capped U3, U8 and U13 precursor snoRNAs and weakly to trimethylated (TMG)-capped U3, U8 and U13 snoRNAs. Binds also to telomerase RNA (By similarity).
Similarity
Belongs to the PHAX family.
Mass
43.247 kDa
Sequence
MALEAGDMEEGQLSDSDSDMTVVPSDRPLQMAKVLGGGSAACAPVSHYRTVKHVDSSEESLDSDDDCSLWKRKRQKCHNTPPKPEPFPFGPSGQKTALNGGKKVNNIWGAVLQEQNQDAVATELGILGMEGSIDRSRQSETYNYLLAKKLAKKESQEYTKELDKDLDEYMHGDKKPGSKEDENGQGHLKRKRPVRDRLGNRVEMNYKGRYEITEEDAPEKVADEIAFRLQEPKKDLIARVVRILGNKKAIELLMETAEVEQNGGLFIMNGSRRRTPGGVFLNLLKNTPSISEEQIKDIFYVENQKEYENKKAARKRRTQLLGKKMKQAIKSLNFQEDDDTSRETFASDTNEALASLDEAQEGPGETKLDAEEAIEVDHPQDLDIF

Gene
Phax
Protein
Phosphorylated adapter RNA export protein
Organism
Rattus norvegicus
Length
385 amino acids
Function
A phosphoprotein adapter involved in the XPO1-mediated U snRNA export from the nucleus. Bridge components required for U snRNA export, the cap binding complex (CBC)-bound snRNA on the one hand and the GTPase Ran in its active GTP-bound form together with the export receptor XPO1 on the other. Its phosphorylation in the nucleus is required for U snRNA export complex assembly and export, while its dephosphorylation in the cytoplasm causes export complex disassembly. It is recycled back to the nucleus via the importin alpha/beta heterodimeric import receptor. The directionality of nuclear export is thought to be conferred by an asymmetric distribution of the GTP- and GDP-bound forms of Ran between the cytoplasm and nucleus. Its compartmentalized phosphorylation cycle may also contribute to the directionality of export. Binds strongly to m7G-capped U1 and U5 small nuclear RNAs (snRNAs) in a sequence-unspecific manner and phosphorylation-independent manner. Plays also a role in the biogenesis of U3 small nucleolar RNA (snoRNA). Involved in the U3 snoRNA transport from nucleoplasm to Cajal bodies. Binds strongly to m7G-capped U3, U8 and U13 precursor snoRNAs and weakly to trimethylated (TMG)-capped U3, U8 and U13 snoRNAs. Binds also to telomerase RNA (By similarity).
Similarity
Belongs to the PHAX family.
Mass
43.166 kDa
Sequence
MALEAGDMEEGQLSDSDSDMTVVPSDRPLQMAKVLGGGGAACAPVSNYRTVKHVDSSEESLDSDDDCSLWKRKRQKCHSPPPKPEPFPFGQSGQKPALNGGKKVNNIWGAVLQEQNQDAVATELGILGMEGTIDRSRQSETYNYLLAKKLAKKESQEYTKELDKDLDEYMHGDKKPGSKEEENGQGHLKRKRPVRDRLGNRVEMNYKGRYDITEEDSPEKVADEIAFRLQEPKKDLIARVVTILGNKKAIELLMETAEVEQNGGLFIMNGSRRRTPGGVFLNLLKNTPSISEEQIKDIFYIENQKEYENKKAARKRRTQLLGKKMKEAIKSLNFQEDDDTSRETFASDTNEALASLDEAQEGPGETKLDAEDAIEVDHPQDLDIF