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UniProtKB/Swiss-Prot entry Q14318


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name FKBP8_HUMAN
Primary accession number Q14318
Secondary accession numbers Q53GU3 Q7Z349 Q86YK6
Integrated into Swiss-Prot on May 30, 2000
Sequence was last modified on July 1, 2008 (Sequence version 2)
Annotations were last modified on    September 2, 2008 (Entry version 79)
Name and origin of the protein
Protein name FK506-binding protein 8
Synonyms EC 5.2.1.8
Peptidyl-prolyl cis-trans isomerase
PPIase
Rotamase
38 kDa FK506-binding protein
hFKBP38
FKBPR38
Gene name
Name: FKBP8
Synonyms: FKBP38
From
Homo sapiens (Human) [TaxID: 9606] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), FUNCTION, INTERACTION WITH BCL2 AND BCL2L1/BCLXL, AND SUBCELLULAR LOCATION.
DOI=10.1038/ncb894; PubMed=12510191 [NCBI, ExPASy, EBI, Israel, Japan]
Shirane M., Nakayama K.I.;
"Inherent calcineurin inhibitor FKBP38 targets Bcl-2 to mitochondria and inhibits apoptosis.";
Nat. Cell Biol. 5:28-37(2003).
[2]
NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1).
Bulgakov O.V., Eggenschwiler J.T., Hong D.-H., Anderson K.V., Li T.;
"FKBP8 is a negative regulator of mouse sonic hedgehog signaling in neural tissues.";
Submitted (APR-2003) to the EMBL/GenBank/DDBJ databases.
[3]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2).
TISSUE=Colon endothelium;
Bloecker H., Boecher M., Mewes H.-W., Weil B., Amid C., Osanger A., Fobo G., Han M., Wiemann S.;
Submitted (JUN-2003) to the EMBL/GenBank/DDBJ databases.
[4]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
DOI=10.1038/nature02399; PubMed=15057824 [NCBI, ExPASy, EBI, Israel, Japan]
Grimwood J., Gordon L.A., Olsen A.S., Terry A., Schmutz J., Lamerdin J.E., Hellsten U., Goodstein D., Couronne O., Tran-Gyamfi M., Aerts A., Altherr M., Ashworth L., Bajorek E., Black S., Branscomb E., Caenepeel S., Carrano A.V., Caoile C., Chan Y.M., Christensen M., Cleland C.A., Copeland A., Dalin E., Dehal P., Denys M., Detter J.C., Escobar J., Flowers D., Fotopulos D., Garcia C., Georgescu A.M., Glavina T., Gomez M., Gonzales E., Groza M., Hammon N., Hawkins T., Haydu L., Ho I., Huang W., Israni S., Jett J., Kadner K., Kimball H., Kobayashi A., Larionov V., Leem S.-H., Lopez F., Lou Y., Lowry S., Malfatti S., Martinez D., McCready P.M., Medina C., Morgan J., Nelson K., Nolan M., Ovcharenko I., Pitluck S., Pollard M., Popkie A.P., Predki P., Quan G., Ramirez L., Rash S., Retterer J., Rodriguez A., Rogers S., Salamov A., Salazar A., She X., Smith D., Slezak T., Solovyev V., Thayer N., Tice H., Tsai M., Ustaszewska A., Vo N., Wagner M., Wheeler J., Wu K., Xie G., Yang J., Dubchak I., Furey T.S., DeJong P., Dickson M., Gordon D., Eichler E.E., Pennacchio L.A., Richardson P., Stubbs L., Rokhsar D.S., Myers R.M., Rubin E.M., Lucas S.M.;
"The DNA sequence and biology of human chromosome 19.";
Nature 428:529-535(2004).
[5]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R., Yooseph S., Lu F., Nusskern D.R., Shue B.C., Zheng X.H., Zhong F., Delcher A.L., Huson D.H., Kravitz S.A., Mouchard L., Reinert K., Remington K.A., Clark A.G., Waterman M.S., Eichler E.E., Adams M.D., Hunkapiller M.W., Myers E.W., Venter J.C.;
Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases.
[6]
NUCLEOTIDE SEQUENCE [MRNA] OF 35-412 (ISOFORM 1).
DOI=10.1016/0378-1119(95)00216-S; PubMed=7543869 [NCBI, ExPASy, EBI, Israel, Japan]
Lam E., Martin M., Wiederrecht G.;
"Isolation of a cDNA encoding a novel human FK506-binding protein homolog containing leucine zipper and tetratricopeptide repeat motifs.";
Gene 160:297-302(1995).
[7]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 42-412 (ISOFORM 2).
TISSUE=Liver;
Suzuki Y., Sugano S., Totoki Y., Toyoda A., Takeda T., Sakaki Y., Tanaka A., Yokoyama S.;
Submitted (APR-2005) to the EMBL/GenBank/DDBJ databases.
[8]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 54-412 (ISOFORM 1).
TISSUE=Pancreas;
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan]
The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
[9]
FUNCTION, AND SUBCELLULAR LOCATION.
DOI=10.1016/j.bbrc.2005.09.023; PubMed=16176796 [NCBI, ExPASy, EBI, Israel, Japan]
Kang C.B., Feng L., Chia J., Yoon H.S.;
"Molecular characterization of FK-506 binding protein 38 and its potential regulatory role on the anti-apoptotic protein Bcl-2.";
Biochem. Biophys. Res. Commun. 337:30-38(2005).
[10]
PPIASE ACTIVITY, AND COFACTOR.
DOI=10.1038/sj.emboj.7600739; PubMed=15990872 [NCBI, ExPASy, EBI, Israel, Japan]
Edlich F., Weiwad M., Erdmann F., Fanghaenel J., Jarczowski F., Rahfeld J.-U., Fischer G.;
"Bcl-2 regulator FKBP38 is activated by Ca2+/calmodulin.";
EMBO J. 24:2688-2699(2005).
[11]
FUNCTION, AND ABSENCE OF DIRECT INTERACTION WITH CALCINEURIN.
DOI=10.1016/j.febslet.2004.12.098; PubMed=15757646 [NCBI, ExPASy, EBI, Israel, Japan]
Weiwad M., Edlich F., Erdmann F., Jarczowski F., Kilka S., Dorn M., Pechstein A., Fischer G.;
"A reassessment of the inhibitory capacity of human FKBP38 on calcineurin.";
FEBS Lett. 579:1591-1596(2005).
[12]
INTERACTION WITH BCL2.
DOI=10.1016/j.febslet.2005.01.053; PubMed=15733859 [NCBI, ExPASy, EBI, Israel, Japan]
Kang C.B., Tai J., Chia J., Yoon H.S.;
"The flexible loop of Bcl-2 is required for molecular interaction with immunosuppressant FK-506 binding protein 38 (FKBP38).";
FEBS Lett. 579:1469-1476(2005).
[13]
PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT TYR-322, AND MASS SPECTROMETRY.
DOI=10.1038/nbt1046; PubMed=15592455 [NCBI, ExPASy, EBI, Israel, Japan]
Rush J., Moritz A., Lee K.A., Guo A., Goss V.L., Spek E.J., Zhang H., Zha X.-M., Polakiewicz R.D., Comb M.J.;
"Immunoaffinity profiling of tyrosine phosphorylation in cancer cells.";
Nat. Biotechnol. 23:94-101(2005).
[14]
INTERACTION WITH BCL2.
DOI=10.1074/jbc.M606181200; PubMed=17090549 [NCBI, ExPASy, EBI, Israel, Japan]
Portier B.P., Taglialatela G.;
"Bcl-2 localized at the nuclear compartment induces apoptosis after transient overexpression.";
J. Biol. Chem. 281:40493-40502(2006).
[15]
INTERACTION WITH HCV NS5A.
DOI=10.1016/j.febslet.2006.07.002; PubMed=16844119 [NCBI, ExPASy, EBI, Israel, Japan]
Wang J., Tong W., Zhang X., Chen L., Yi Z., Pan T., Hu Y., Xiang L., Yuan Z.;
"Hepatitis C virus non-structural protein NS5A interacts with FKBP38 and inhibits apoptosis in Huh7 hepatoma cells.";
FEBS Lett. 580:4392-4400(2006).
[16]
STRUCTURE BY NMR OF 92-210.
DOI=10.1007/s10858-006-0018-6; PubMed=16604427 [NCBI, ExPASy, EBI, Israel, Japan]
Maestre-Martinez M., Edlich F., Jarczowski F., Weiwad M., Fischer G., Luecke C.;
"Solution structure of the FK506-binding domain of human FKBP38.";
J. Biomol. NMR 34:197-202(2006).
[17]
STRUCTURE BY NMR OF 91-205.
RIKEN structural genomics initiative (RSGI);
"Solution structure of RUH-047, an FKBP domain from human cDNA.";
Submitted (JUN-2006) to the PDB data bank.
[18]
X-RAY CRYSTALLOGRAPHY (1.6 ANGSTROMS) OF 90-205.
Structural genomics consortium (SGC);
"Structure of the human FK-506 binding protein 8.";
Submitted (OCT-2006) to the PDB data bank.
Comments
  • FUNCTION: Constitutively inactive PPiase, which becomes active when bound to calmodulin and calcium. Seems to act as a chaperone for BCL2, targets it to the mitochondria and modulates its phosphorylation state. The BCL2/FKBP8/calmodulin/calcium complex probably interferes with the binding of BCL2 to its targets. The active form of FKBP8 may therefore play a role in the regulation of apoptosis.
  • CATALYTIC ACTIVITY: Peptidylproline (omega=180) = peptidylproline (omega=0).
  • COFACTOR: Calcium.
  • SUBUNIT: Homomultimers or heteromultimers (Potential). Forms heterodimer with calmodulin. When activated by calmodulin and calcium, interacts with the BH4 domain of BCL2 and weakly with BCLX isoform Bcl-X(L). Does not bind and inhibit calcineurin. Interacts with HCV NS5A.
  • SUBCELLULAR LOCATION: Mitochondrion membrane; Single-pass membrane protein; Cytoplasmic side (By similarity).
  • ALTERNATIVE PRODUCTS: 2 named isoforms [FASTA] produced by alternative splicing.
    Name1
    Isoform IDQ14318-1
    This is the isoform sequence displayed in this entry.
    Name2
    Isoform IDQ14318-2
    Features which should be applied to build the isoform sequence: VSP_034486.
  • TISSUE SPECIFICITY: Widely expressed. Highest levels seen in the brain.
  • MISCELLANEOUS: Binds the immunosuppressant FK506 only in its calmodulin/calcium activated form.
  • SIMILARITY: Contains 1 PPIase FKBP-type domain.
  • SIMILARITY: Contains 3 TPR repeats.
  • CAUTION: It is uncertain whether Met-1 or Met-58 is the initiator.
  • SEQUENCE CAUTION:
    • Sequence=AAB00102.1; Type=Miscellaneous discrepancy; Note=The first part of the cDNA maps to the same locus, but in opposite orientation
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
AY225339; AAO39020.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AY278607; AAQ84561.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BX538124; CAD98028.1; ALT_INIT; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AC005387; AAC28753.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
CH471106; EAW84709.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
L37033; AAB00102.1; ALT_SEQ; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AK222838; BAD96558.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC009966; AAH09966.1; ALT_INIT; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
RefSeq NP_036313.3; -.
UniGene Hs.173464
3D structure databases
PDB
2AWG; X-ray; 1.60 A; A=90-205.[ExPASy / RCSB / EBI]
2D9F; NMR; -; A=91-205.[ExPASy / RCSB / EBI]
2F2D; NMR; -; A=92-210.[ExPASy / RCSB / EBI]
Detailed list of linked structures.
PDBsum 2AWG; -.
2D9F; -.
2F2D; -.
ModBase Q14318.
PTM databases
PhosphoSite Q14318; -.
Organism-specific databases
HGNC HGNC:3724; FKBP8.
GenAtlas FKBP8.
HPA HPA007054; -.
MIM 604840; gene. [NCBI / EBI]
PharmGKB PA28165; -.
GeneCards Q14318.
Gene expression databases
ArrayExpress Q14318; -.
CleanEx HS_FKBP8; -.
GermOnline ENSG00000105701; Homo sapiens.
Ontologies
GO
GO:0007242; Biological process: intracellular signaling cascade (traceable author statement from ProtInc).
QuickGo view.
Family and domain databases
PANTHER PTHR10516; PPIase_FKBP; 1.
PROSITE PS50059; FKBP_PPIASE; 1.
PS50005; TPR; 2.
PS50293; TPR_REGION; 1.
PROSITE graphical view of domain structure (profiles).
BLOCKS Q14318.
Genome annotation databases
Ensembl ENSG00000105701; Homo sapiens. [Contig view]
GeneID 23770; -.
KEGG hsa:23770; -.
Phylogenomic databases
HOVERGEN Q14318; -.
Other
LinkHub Q14318; -.
SOURCE FKBP8; Homo sapiens.
ProtoNet Q14318.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
3D-structure; Alternative splicing; Apoptosis; Calcium; Host-virus interaction; Isomerase; Membrane; Mitochondrion; Phosphoprotein; Polymorphism; Repeat; Rotamase; TPR repeat; Transmembrane.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
CHAIN   1   412  412     FK506-binding protein 8. PRO_0000075331
TRANSMEM   390   410  21     Potential. 
DOMAIN   120   204  85     PPIase FKBP-type. 
REPEAT   221   254  34     TPR 1. 
REPEAT   272   305  34     TPR 2. 
REPEAT   306   339  34     TPR 3. 
COMPBIAS   22    92  71     Glu-rich. 
MOD_RES   322   322        Phosphotyrosine. 
VAR_SEQ   183   183        G -> GS (in isoform 2). VSP_034486
VARIANT   87    87  1     A -> V (in dbSNP:rs11574806 [NCBI]). VAR_044225 
CONFLICT   144   144        V -> A (in Ref. 3; CAD98028). 
CONFLICT   191   191        H -> R (in Ref. 3; CAD98028). 
CONFLICT   206   206        G -> R (in Ref. 6; BAD96558). 
STRAND   93   108  16      
STRAND   121   130  10      
STRAND   136   146  11      
HELIX   154   159  6      
HELIX   160   162  3      
STRAND   168   173  6      
HELIX   175   177  3      
TURN   178   182  5      
TURN   185   187  3      
STRAND   194   204  11      
Sequence information
Length: 412 AA [This is the length of the unprocessed precursor] Molecular weight: 44562 Da [This is the MW of the unprocessed precursor] CRC64: 887C25ADE71EBA8D [This is a checksum on the sequence]
        10         20         30         40         50         60 
MASCAEPSEP SAPLPAGVPP LEDFEVLDGV EDAEGEEEEE EEEEEEDDLS ELPPLEDMGQ 

        70         80         90        100        110        120 
PPAEEAEQPG ALAREFLAAM EPEPAPAPAP EEWLDILGNG LLRKKTLVPG PPGSSRPVKG 

       130        140        150        160        170        180 
QVVTVHLQTS LENGTRVQEE PELVFTLGDC DVIQALDLSV PLMDVGETAM VTADSKYCYG 

       190        200        210        220        230        240 
PQGRSPYIPP HAALCLEVTL KTAVDGPDLE MLTGQERVAL ANRKRECGNA HYQRADFVLA 

       250        260        270        280        290        300 
ANSYDLAIKA ITSSAKVDMT FEEEAQLLQL KVKCLNNLAA SQLKLDHYRA ALRSCSLVLE 

       310        320        330        340        350        360 
HQPDNIKALF RKGKVLAQQG EYSEAIPILR AALKLEPSNK TIHAELSKLV KKHAAQRSTE 

       370        380        390        400        410 
TALYRKMLGN PSRLPAKCPG KGAWSIPWKW LFGATAVALG GVALSVVIAA RN 

Q14318 in FASTA format

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