<p>Provides any useful information about the protein, mostly biological knowledge.</p><p><a href='../manual/function_section' target='_top'>More...</a></p>Functionⁱ

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:</p><p><a href='../manual/gene_ontology' target='_top'>More...</a></p>GO - Molecular functionⁱ

1. nucleotide binding Source: InterPro
2. poly(A) RNA binding Source: UniProtKB

   <p>Inferred from Direct Assay</p> <p>Used to indicate a direct assay for the function, process or component indicated by the GO term.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#ida">GO evidence code guide</a></p> Inferred from direct assayⁱ

   • 22681889

3. protein kinase A binding Source: UniProtKB

   <p>Inferred from Direct Assay</p> <p>Used to indicate a direct assay for the function, process or component indicated by the GO term.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#ida">GO evidence code guide</a></p> Inferred from direct assayⁱ

   • 19840947

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:</p><p><a href='../manual/gene_ontology' target='_top'>More...</a></p>GO - Biological processⁱ

1. B cell activation Source: UniProtKB

   <p>Non-traceable Author Statement</p> <p>Used for statements in the abstract, introduction or discussion of a paper that cannot be traced back to another publication.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#nas">GO evidence code guide</a></p> Non-traceable author statementⁱ

   • 1438229

2. mRNA processing Source: UniProtKB-KW
3. regulation of RNA splicing Source: UniProtKB

   <p>Inferred from Mutant Phenotype</p> <p>Describes annotations that are concluded from looking at variations or changes in a gene product such as mutations or abnormal levels and includes techniques such as knockouts, overexpression, anti-sense experiments and use of specific protein inhibitors.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#imp">GO evidence code guide</a></p> Inferred from mutant phenotypeⁱ

   • 19840947

4. regulation of transcription, DNA-templated Source: UniProtKB

   <p>Non-traceable Author Statement</p> <p>Used for statements in the abstract, introduction or discussion of a paper that cannot be traced back to another publication.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#nas">GO evidence code guide</a></p> Non-traceable author statementⁱ

   • 1438229

5. RNA splicing Source: UniProtKB-KW
6. signal transduction Source: UniProtKB

   <p>Non-traceable Author Statement</p> <p>Used for statements in the abstract, introduction or discussion of a paper that cannot be traced back to another publication.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#nas">GO evidence code guide</a></p> Non-traceable author statementⁱ

   • 1438229

<p>UniProtKB Keywords constitute a <a target="_top" href="/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='../help/keywords' target='_top'>More...</a></p>Keywords - Biological processⁱ

<p>UniProtKB Keywords constitute a <a target="_top" href="/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='../help/keywords' target='_top'>More...</a></p>Keywords - Ligandⁱ

<p>Provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.</p><p><a href='../manual/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyⁱ

Organism-specific databases

<p>Provides information on the location and the topology of the mature protein in the cell.</p><p><a href='../manual/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationⁱ

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:</p><p><a href='../manual/gene_ontology' target='_top'>More...</a></p>GO - Cellular componentⁱ

1. cytoplasm Source: HPA
2. nuclear speck Source: UniProtKB

   <p>Inferred from Direct Assay</p> <p>Used to indicate a direct assay for the function, process or component indicated by the GO term.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#ida">GO evidence code guide</a></p> Inferred from direct assayⁱ

   • 16982639

3. nucleoplasm Source: HPA
4. nucleus Source: UniProtKB

   <p>Inferred from Direct Assay</p> <p>Used to indicate a direct assay for the function, process or component indicated by the GO term.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#ida">GO evidence code guide</a></p> Inferred from direct assayⁱ

   • 19840947

5. spliceosomal complex Source: UniProtKB-KW

<p>UniProtKB Keywords constitute a <a target="_top" href="/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='../help/keywords' target='_top'>More...</a></p>Keywords - Cellular componentⁱ

<p>Provides information on the disease(s) and phenotype(s) associated with the deficiency of a protein.</p><p><a href='../manual/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechⁱ

Mutagenesis

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.</p><p><a href='../manual/mutagen' target='_top'>More...</a></p>Mutagenesisi	438 – 439	2	LL → PP: Abolishes binding to PKA-RI; when associated with 445-P-P-446. 1 Publication <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.10 "Splicing factor arginine/serine-rich 17A (SFRS17A) is an A-kinase anchoring protein that targets protein kinase A to splicing factor compartments." Jarnaess E., Stokka A.J., Kvissel A.K., Skalhegg B.S., Torgersen K.M., Scott J.D., Carlson C.R., Tasken K. J. Biol. Chem. 284:35154-35164(2009) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, SUBUNIT, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, DOMAIN, MUTAGENESIS OF 438-LEU-LEU-439 AND 445-LYS-LYS-446.
<p>Describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.</p><p><a href='../manual/mutagen' target='_top'>More...</a></p>Mutagenesisi	445 – 446	2	KK → PP: Abolishes binding to PKA-RI; when associated with 438-P-P-439. 1 Publication <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.10 "Splicing factor arginine/serine-rich 17A (SFRS17A) is an A-kinase anchoring protein that targets protein kinase A to splicing factor compartments." Jarnaess E., Stokka A.J., Kvissel A.K., Skalhegg B.S., Torgersen K.M., Scott J.D., Carlson C.R., Tasken K. J. Biol. Chem. 284:35154-35164(2009) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, SUBUNIT, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, DOMAIN, MUTAGENESIS OF 438-LEU-LEU-439 AND 445-LYS-LYS-446.

Organism-specific databases

<p>Describes post-translational modifications (PTMs) and/or processing events.</p><p><a href='../manual/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingⁱ

Molecule processing

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes the extent of a polypeptide chain in the mature protein following processing.</p><p><a href='../manual/chain' target='_top'>More...</a></p>Chaini	1 – 695	695	A-kinase anchor protein 17A		PRO_0000022692	Add BLAST

Amino acid modifications

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Specifies the position and type of each modified residue excluding <a href="/manual/lipid">lipids</a>, <a href="/manual/carbohyd">glycans</a> and <a href="/manual/crosslnk">protein cross-links</a>.</p><p><a href='../manual/mod_res' target='_top'>More...</a></p>Modified residuei	537 – 537	1	Phosphoserine2 Publications <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.7 "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks." Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M. Cell 127:635-648(2006) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-537, IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. Ref.11 "System-wide temporal characterization of the proteome and phosphoproteome of human embryonic stem cell differentiation." Rigbolt K.T., Prokhorova T.A., Akimov V., Henningsen J., Johansen P.T., Kratchmarova I., Kassem M., Mann M., Olsen J.V., Blagoev B. Sci. Signal. 4:RS3-RS3(2011) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-537 AND SER-633, IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
<p>Specifies the position and type of each modified residue excluding <a href="/manual/lipid">lipids</a>, <a href="/manual/carbohyd">glycans</a> and <a href="/manual/crosslnk">protein cross-links</a>.</p><p><a href='../manual/mod_res' target='_top'>More...</a></p>Modified residuei	633 – 633	1	Phosphoserine1 Publication <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.11 "System-wide temporal characterization of the proteome and phosphoproteome of human embryonic stem cell differentiation." Rigbolt K.T., Prokhorova T.A., Akimov V., Henningsen J., Johansen P.T., Kratchmarova I., Kassem M., Mann M., Olsen J.V., Blagoev B. Sci. Signal. 4:RS3-RS3(2011) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-537 AND SER-633, IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].

<p>UniProtKB Keywords constitute a <a target="_top" href="/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='../help/keywords' target='_top'>More...</a></p>Keywords - PTMⁱ

Proteomic databases

PTM databases

<p>Provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.</p><p><a href='../manual/expression_section' target='_top'>More...</a></p>Expressionⁱ

<p>Provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified ‘at the protein level’.</p><p><a href='../manual/tissue_specificity' target='_top'>More...</a></p>Tissue specificityⁱ

Gene expression databases

Organism-specific databases

<p>Provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.</p><p><a href='../manual/interaction_section' target='_top'>More...</a></p>Interactionⁱ

<p>Provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the ‘Function’ section).</p><p><a href='../manual/subunit_structure' target='_top'>More...</a></p>Subunit structureⁱ

<p>Provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.</p><p><a href='../manual/binary_interactions' target='_top'>More...</a></p>Binary interactionsⁱ

Protein-protein interaction databases

<p>Provides information on the tertiary structure of a protein.</p><p><a href='../manual/structure_section' target='_top'>More...</a></p>Structureⁱ

3D structure databases

<p>Provides information on sequence similarities with other proteins and the domain(s) present in a protein.</p><p><a href='../manual/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsⁱ

Domains and Repeats

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.</p><p><a href='../manual/domain' target='_top'>More...</a></p>Domaini	147 – 256	110	RRM			Add BLAST

Region

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes a region of interest that cannot be described in other subsections.</p><p><a href='../manual/region' target='_top'>More...</a></p>Regioni	83 – 112	30	PKA-RI and PKA-RII subunit binding domain			Add BLAST
<p>Describes a region of interest that cannot be described in other subsections.</p><p><a href='../manual/region' target='_top'>More...</a></p>Regioni	425 – 454	30	PKA-RI-alpha subunit binding domain			Add BLAST

Compositional bias

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.</p><p><a href='../manual/compbias' target='_top'>More...</a></p>Compositional biasi	587 – 695	109	Arg-rich			Add BLAST

<p>Provides general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.</p><p><a href='../manual/domain_cc' target='_top'>More...</a></p>Domainⁱ

<p>Provides information about the sequence similarity with other proteins.</p><p><a href='../manual/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesⁱ

Phylogenomic databases

Family and domain databases

<p>Displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including length and molecular weight.</p><p><a href='../manual/sequences_section' target='_top'>More...</a></p>Sequences (3)ⁱ

<p>Indicates if the canonical sequence displayed by default in the entry is complete or not.</p><p><a href='../manual/sequence_status' target='_top'>More...</a></p>Sequence statusⁱ: Complete.

This entry describes 3<p>Lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.</p><p><a href='../manual/alternative_products' target='_top'>More...</a></p> isoformsⁱ produced by alternative splicing. Align

        10         20         30         40         50
MAAATIVHDT SEAVELCPAY GLYLKPITKM TISVALPQLK QPGKSISNWE 
        60         70         80         90        100
VMERLKGMVQ NHQFSTLRIS KSTMDFIRFE GEVENKSLVK SFLACLDGKT 
       110        120        130        140        150
IKLSGFSDIL KVRAAEFKID FPTRHDWDSF FRDAKDMNET LPGERPDTIH 
       160        170        180        190        200
LEGLPCKWFA LKESGSEKPS EDVLVKVFEK FGEIRNVDIP MLDPYREEMT 
       210        220        230        240        250
GRNFHTFSFG GHLNFEAYVQ YREYMGFIQA MSALRGMKLM YKGEDGKAVA 
       260        270        280        290        300
CNIKVSFDST KHLSDASIKK RQLERQKLQE LEQQREEQKR REKEAEERQR 
       310        320        330        340        350
AEERKQKELE ELERERKREE KLRKREQKQR DRELRRNQKK LEKLQAEEQK 
       360        370        380        390        400
QLQEKIKLEE RKLLLAQRNL QSIRLIAELL SRAKAVKLRE QEQKEEKLRL 
       410        420        430        440        450
QQQEERRRLQ EAELRRVEEE KERALGLQRK ERELRERLLS ILLSKKPDDS 
       460        470        480        490        500
HTHDELGVAH ADLLQPVLDI LQTVSSGCVS ATTLHPLGGQ PPAGAPKESP 
       510        520        530        540        550
AHPEADGAPK SVNGSVAEEA PCKEVQSSCR VVPEDGSPEK RCPGGVLSCI 
       560        570        580        590        600
PDNNQQPKGI PACEQNVSRK DTRSEQDKCN REPSKGRGRA TGDGLADRHK 
       610        620        630        640        650
RERSRARRAS SREDGRPRKE RRPHKKHAYK DDSPRRRSTS PDHTRSRRSH 
       660        670        680        690 
SKDRHRRERS RERRGSASRK HSRHRRRSER SRSRSPSRHR STWNR 

        10         20         30         40         50
MAAATIVHDT SEAVELCPAY GLYLKPITKM TISVALPQLK QPGKSISNWE 
        60         70         80         90        100
VMERLKGMVQ NHQFSTLRIS KSTMDFIRFE GEVENKSLVK SFLACLDGKT 
       110        120        130        140        150
IKLSGFSDIL KVRAAEFKID FPTRHDWDSF FRDAKDMNET LPGERPDTIH 
       160        170        180        190        200
LEGLPCKWFA LKESGSEKPS EDVLVKVFEK FGEIRNVDIP MLDPYREEMT 
       210        220        230        240        250
GRNFHTFSFG GHLNFEAYVQ YREYMGFIQA MSALRGMKLM YKGEDGKAVA 
       260        270        280        290        300
CNIKVSFDST KHLSDASIKK RQLERQKLQE LEQQREEQKR REKEAEERQR 
       310        320        330        340        350
AEERKQKELE ELERERKREE KLRKREQKQR DRELRRNQKK LEKLQAEEQK 
       360        370        380 
QLQEKIKLEE RKLLLAQRNL QSIRLIAELL SRAKL            

        10         20         30         40         50
MAAATIVHDT SEAVELCPAY GLYLKPITKM TISVALPQLK QPGKSISNWE 
        60         70         80         90        100
VMERLKGMVQ NHQFSTLRIS KSTMDFIRFE GEVENKSLVK SFLACLDGKT 
       110        120        130        140        150
IKLSGFSDIL KVRAAEFKID FPTRHDWDSF FRDAKDMNET LPGERPDTIH 
       160        170        180        190        200
LEGLPCKWFA LKESGSEKPS EDVLVKVFEK FGEIRNVDIP MLDPYREEMT 
       210        220        230        240        250
GRNFHTFSFG GHLNFEAYVQ YREYMGFIQA MSALRGMKLM YKGEDGKAVA 
       260        270        280        290        300
CNIKVSFDST KHLSDASIKK RQLERQKLQE LEQQREEQKR REKEAEERQR 
       310        320        330        340        350
AEERKQKELE ELERERKREE KLRKREQKQR DRELRRNQKK LEKLQAEEQK 
       360        370        380        390        400
QLQEKIKLEE RKLLLAQRNL QSIRLIAELL SRAKVGGSLC SRQPRPGCPQ 
       410        420        430        440 
CPPLKCGRRH GAVSPPAAAV ATKPALMPRM TAPSREGVAL VCRSR 

<p>Reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.</p><p><a href='../manual/sequence_caution' target='_top'>More...</a></p>Sequence cautionⁱ

Experimental Info

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.</p><p><a href='../manual/conflict' target='_top'>More...</a></p>Sequence conflicti	443 – 443	1	L → Q in AAA36187. (PubMed:1438229)Curated
<p>Reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.</p><p><a href='../manual/conflict' target='_top'>More...</a></p>Sequence conflicti	500 – 500	1	P → A in AAA61303. (PubMed:1302606)Curated
<p>Reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.</p><p><a href='../manual/conflict' target='_top'>More...</a></p>Sequence conflicti	500 – 500	1	P → A in AAI10497. (PubMed:15489334)Curated
<p>Reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.</p><p><a href='../manual/conflict' target='_top'>More...</a></p>Sequence conflicti	502 – 502	1	H → P in AAA36187. (PubMed:1438229)Curated

Natural variant

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes natural variant(s) of the protein sequence.</p><p><a href='../manual/variant' target='_top'>More...</a></p>Natural varianti	194 – 194	1	P → S.1 Publication <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.4 "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 3), VARIANT SER-194. Corresponds to variant rs17852504 [ dbSNP | Ensembl ].		VAR_055353

Alternative sequence

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting. The information stored in this subsection is used to automatically construct alternative protein sequence(s) for display.</p><p><a href='../manual/var_seq' target='_top'>More...</a></p>Alternative sequencei	385 – 445	61	AVKLR…ILLSK → VGGSLCSRQPRPGCPQCPPL KCGRRHGAVSPPAAAVATKP ALMPRMTAPSREGVALVCRS R in isoform 3. 1 Publication <p>Manually curated information that is based on statements in scientific articles for which there is no experimental support.</p> <p><a href="/manual/evidences#ECO:0000303">More…</a></p> Manual assertion based on opinion ini Ref.4 "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 3), VARIANT SER-194.		VSP_024947	Add BLAST
<p>Describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting. The information stored in this subsection is used to automatically construct alternative protein sequence(s) for display.</p><p><a href='../manual/var_seq' target='_top'>More...</a></p>Alternative sequencei	385 – 385	1	A → L in isoform 2. Curated		VSP_004490
<p>Describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting. The information stored in this subsection is used to automatically construct alternative protein sequence(s) for display.</p><p><a href='../manual/var_seq' target='_top'>More...</a></p>Alternative sequencei	386 – 695	310	Missing in isoform 2. Curated		VSP_004491	Add BLAST
<p>Describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting. The information stored in this subsection is used to automatically construct alternative protein sequence(s) for display.</p><p><a href='../manual/var_seq' target='_top'>More...</a></p>Alternative sequencei	446 – 695	250	Missing in isoform 3. 1 Publication <p>Manually curated information that is based on statements in scientific articles for which there is no experimental support.</p> <p><a href="/manual/evidences#ECO:0000303">More…</a></p> Manual assertion based on opinion ini Ref.4 "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 3), VARIANT SER-194.		VSP_024948	Add BLAST

Sequence databases

Genome annotation databases

Polymorphism databases

<p>UniProtKB Keywords constitute a <a target="_top" href="/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='../help/keywords' target='_top'>More...</a></p>Keywords - Coding sequence diversityⁱ

<p>Is used to point to information related to entries and found in data collections other than UniProtKB.</p><p><a href='../manual/cross_references_section' target='_top'>More...</a></p>Cross-referencesⁱ

Sequence databases

3D structure databases

Protein-protein interaction databases

PTM databases

Polymorphism databases

Proteomic databases

Protocols and materials databases

Genome annotation databases

Organism-specific databases

Phylogenomic databases

Miscellaneous databases

Gene expression databases

Family and domain databases

<p>Contains the literature citations that are the sources of data used to annotate the entry. Each reference is numbered and contains several subsections allowing a precise description of a given citation.</p><p><a href='../manual/publications_section' target='_top'>More...</a></p>Publicationsⁱ

1. "Structure and expression of the human pseudoautosomal gene XE7."
   Ellison J.W., Ramos C., Yen P.H., Shapiro L.J.
   Hum. Mol. Genet. 1:691-696(1992) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1).
2. "Cloning and sequencing of a trophoblast-endothelial-activated lymphocyte surface protein: cDNA sequence and genomic structure."
   Voland J.R., Wyzykowski R.J., Huang M., Dutton R.W.
   Proc. Natl. Acad. Sci. U.S.A. 89:10425-10429(1992) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1).
   Tissue: Placenta.
   
3. "The DNA sequence of the human X chromosome."
   Ross M.T., Grafham D.V., Coffey A.J., Scherer S., McLay K., Muzny D., Platzer M., Howell G.R., Burrows C., Bird C.P., Frankish A., Lovell F.L., Howe K.L., Ashurst J.L., Fulton R.S., Sudbrak R., Wen G., Jones M.C.

   , Hurles M.E., Andrews T.D., Scott C.E., Searle S., Ramser J., Whittaker A., Deadman R., Carter N.P., Hunt S.E., Chen R., Cree A., Gunaratne P., Havlak P., Hodgson A., Metzker M.L., Richards S., Scott G., Steffen D., Sodergren E., Wheeler D.A., Worley K.C., Ainscough R., Ambrose K.D., Ansari-Lari M.A., Aradhya S., Ashwell R.I., Babbage A.K., Bagguley C.L., Ballabio A., Banerjee R., Barker G.E., Barlow K.F., Barrett I.P., Bates K.N., Beare D.M., Beasley H., Beasley O., Beck A., Bethel G., Blechschmidt K., Brady N., Bray-Allen S., Bridgeman A.M., Brown A.J., Brown M.J., Bonnin D., Bruford E.A., Buhay C., Burch P., Burford D., Burgess J., Burrill W., Burton J., Bye J.M., Carder C., Carrel L., Chako J., Chapman J.C., Chavez D., Chen E., Chen G., Chen Y., Chen Z., Chinault C., Ciccodicola A., Clark S.Y., Clarke G., Clee C.M., Clegg S., Clerc-Blankenburg K., Clifford K., Cobley V., Cole C.G., Conquer J.S., Corby N., Connor R.E., David R., Davies J., Davis C., Davis J., Delgado O., Deshazo D., Dhami P., Ding Y., Dinh H., Dodsworth S., Draper H., Dugan-Rocha S., Dunham A., Dunn M., Durbin K.J., Dutta I., Eades T., Ellwood M., Emery-Cohen A., Errington H., Evans K.L., Faulkner L., Francis F., Frankland J., Fraser A.E., Galgoczy P., Gilbert J., Gill R., Gloeckner G., Gregory S.G., Gribble S., Griffiths C., Grocock R., Gu Y., Gwilliam R., Hamilton C., Hart E.A., Hawes A., Heath P.D., Heitmann K., Hennig S., Hernandez J., Hinzmann B., Ho S., Hoffs M., Howden P.J., Huckle E.J., Hume J., Hunt P.J., Hunt A.R., Isherwood J., Jacob L., Johnson D., Jones S., de Jong P.J., Joseph S.S., Keenan S., Kelly S., Kershaw J.K., Khan Z., Kioschis P., Klages S., Knights A.J., Kosiura A., Kovar-Smith C., Laird G.K., Langford C., Lawlor S., Leversha M., Lewis L., Liu W., Lloyd C., Lloyd D.M., Loulseged H., Loveland J.E., Lovell J.D., Lozado R., Lu J., Lyne R., Ma J., Maheshwari M., Matthews L.H., McDowall J., McLaren S., McMurray A., Meidl P., Meitinger T., Milne S., Miner G., Mistry S.L., Morgan M., Morris S., Mueller I., Mullikin J.C., Nguyen N., Nordsiek G., Nyakatura G., O'dell C.N., Okwuonu G., Palmer S., Pandian R., Parker D., Parrish J., Pasternak S., Patel D., Pearce A.V., Pearson D.M., Pelan S.E., Perez L., Porter K.M., Ramsey Y., Reichwald K., Rhodes S., Ridler K.A., Schlessinger D., Schueler M.G., Sehra H.K., Shaw-Smith C., Shen H., Sheridan E.M., Shownkeen R., Skuce C.D., Smith M.L., Sotheran E.C., Steingruber H.E., Steward C.A., Storey R., Swann R.M., Swarbreck D., Tabor P.E., Taudien S., Taylor T., Teague B., Thomas K., Thorpe A., Timms K., Tracey A., Trevanion S., Tromans A.C., d'Urso M., Verduzco D., Villasana D., Waldron L., Wall M., Wang Q., Warren J., Warry G.L., Wei X., West A., Whitehead S.L., Whiteley M.N., Wilkinson J.E., Willey D.L., Williams G., Williams L., Williamson A., Williamson H., Wilming L., Woodmansey R.L., Wray P.W., Yen J., Zhang J., Zhou J., Zoghbi H., Zorilla S., Buck D., Reinhardt R., Poustka A., Rosenthal A., Lehrach H., Meindl A., Minx P.J., Hillier L.W., Willard H.F., Wilson R.K., Waterston R.H., Rice C.M., Vaudin M., Coulson A., Nelson D.L., Weinstock G., Sulston J.E., Durbin R.M., Hubbard T., Gibbs R.A., Beck S., Rogers J., Bentley D.R.
   Nature 434:325-337(2005) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
4. "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
   The MGC Project Team
   Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 3), VARIANT SER-194.
   Tissue: Blood.
   
5. "Large-scale proteomic analysis of the human spliceosome."
   Rappsilber J., Ryder U., Lamond A.I., Mann M.
   Genome Res. 12:1231-1245(2002) [PubMed] [Europe PMC] [Abstract]
   Cited for: IDENTIFICATION IN A COMPLEX WITH THE SPLICEOSOME, IDENTIFICATION BY MASS SPECTROMETRY.
6. "An unappreciated role for RNA surveillance."
   Hillman R.T., Green R.E., Brenner S.E.
   Genome Biol. 5:R8.1-R8.16(2004) [PubMed] [Europe PMC] [Abstract]
   Cited for: SPLICE ISOFORM(S) THAT ARE POTENTIAL NMD TARGET(S).
7. "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks."
   Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M.
   Cell 127:635-648(2006) [PubMed] [Europe PMC] [Abstract]
   Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-537, IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
   Tissue: Cervix carcinoma.
   
8. "XE7: a novel splicing factor that interacts with ASF/SF2 and ZNF265."
   Mangs A.H., Speirs H.J.L., Goy C., Adams D.J., Markus M.A., Morris B.J.
   Nucleic Acids Res. 34:4976-4986(2006) [PubMed] [Europe PMC] [Abstract]
   Cited for: FUNCTION, SUBCELLULAR LOCATION, INTERACTION WITH ZRANB2 AND SFRS1.
9. "A quantitative atlas of mitotic phosphorylation."
   Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E., Elledge S.J., Gygi S.P.
   Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008) [PubMed] [Europe PMC] [Abstract]
   Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
   Tissue: Cervix carcinoma.
   
10. "Splicing factor arginine/serine-rich 17A (SFRS17A) is an A-kinase anchoring protein that targets protein kinase A to splicing factor compartments."
    Jarnaess E., Stokka A.J., Kvissel A.K., Skalhegg B.S., Torgersen K.M., Scott J.D., Carlson C.R., Tasken K.
    J. Biol. Chem. 284:35154-35164(2009) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION, SUBUNIT, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, DOMAIN, MUTAGENESIS OF 438-LEU-LEU-439 AND 445-LYS-LYS-446.
11. "System-wide temporal characterization of the proteome and phosphoproteome of human embryonic stem cell differentiation."
    Rigbolt K.T., Prokhorova T.A., Akimov V., Henningsen J., Johansen P.T., Kratchmarova I., Kassem M., Mann M., Olsen J.V., Blagoev B.
    Sci. Signal. 4:RS3-RS3(2011) [PubMed] [Europe PMC] [Abstract]
    Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-537 AND SER-633, IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].

<p>Provides general information on the entry.</p><p><a href='../manual/entry_information_section' target='_top'>More...</a></p>Entry informationⁱ

<p>Contains any relevant information that doesn’t fit in any other defined sections</p><p><a href='../manual/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousⁱ

Miscellaneous

<p>UniProtKB Keywords constitute a <a target="_top" href="/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='../help/keywords' target='_top'>More...</a></p>Keywords - Technical termⁱ

Documents

1. Human chromosome X
   Human chromosome X: entries, gene names and cross-references to MIM
2. Human entries with polymorphisms or disease mutations
   List of human entries with polymorphisms or disease mutations
3. Human polymorphisms and disease mutations
   Index of human polymorphisms and disease mutations
4. MIM cross-references
   Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
5. SIMILARITY comments
   Index of protein domains and families

External Data

<p>Provides links to the UniProt Reference Clusters (<a href="/help/uniref">UniRef</a>). UniRef consists of clusters for UniProtKB sequences (including isoforms) and selected UniParc sequences, in order to obtain complete coverage of the sequence space at resolutions of 100%, 90% and 50% identity.</p><p><a href='../manual/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsⁱ