GONUTS has been updated to MW1.31 Most things seem to be working but be sure to report problems.

Have any questions? Please email us at ecoliwiki@gmail.com

HUMAN:OGT1

From GONUTS
Jump to: navigation, search
Species (Taxon ID) Homo sapiens (Human). (9606)
Gene Name(s) OGT
Protein Name(s) UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit

O-GlcNAc transferase subunit p110 O-linked N-acetylglucosamine transferase 110 kDa subunit OGT

External Links
UniProt O15294
EMBL U77413
AJ315767
AJ315767
AJ315767
AL050366
AL833085
BX537844
BC014434
BC038180
CCDS CCDS14414.1
CCDS35502.1
RefSeq NP_858058.1
NP_858059.1
XP_005262365.1
UniGene Hs.405410
PDB 1W3B
3PE3
3PE4
3TAX
4AY5
4AY6
4CDR
4GYW
4GYY
4GZ3
4GZ5
4GZ6
4N39
4N3A
4N3B
4N3C
PDBsum 1W3B
3PE3
3PE4
3TAX
4AY5
4AY6
4CDR
4GYW
4GYY
4GZ3
4GZ5
4GZ6
4N39
4N3A
4N3B
4N3C
ProteinModelPortal O15294
SMR O15294
BioGrid 114049
DIP DIP-33491N
IntAct O15294
MINT MINT-2998811
STRING 9606.ENSP00000362824
BindingDB O15294
ChEMBL CHEMBL5955
CAZy GT41
PhosphoSite O15294
MaxQB O15294
PaxDb O15294
PRIDE O15294
DNASU 8473
Ensembl ENST00000373701
ENST00000373719
GeneID 8473
KEGG hsa:8473
UCSC uc004eaa.2
uc004eab.2
CTD 8473
GeneCards GC0XP070752
HGNC HGNC:8127
HPA CAB034099
HPA030751
HPA030752
HPA030753
MIM 300255
neXtProt NX_O15294
PharmGKB PA31914
eggNOG COG3914
GeneTree ENSGT00550000074327
HOGENOM HOG000003765
HOVERGEN HBG000351
InParanoid O15294
KO K09667
OMA KLAYMPN
OrthoDB EOG71K624
PhylomeDB O15294
TreeFam TF105785
BioCyc MetaCyc:ENSG00000147162-MONOMER
Reactome REACT_172610
SABIO-RK O15294
SignaLink O15294
UniPathway UPA00378
EvolutionaryTrace O15294
GeneWiki OGT_(gene)
GenomeRNAi 8473
NextBio 31706
PRO PR:O15294
Proteomes UP000005640
Bgee O15294
CleanEx HS_OGT
ExpressionAtlas O15294
Genevestigator O15294
GO GO:0005737
GO:0005829
GO:0000123
GO:0005815
GO:0005739
GO:0070688
GO:0005654
GO:0005634
GO:0005886
GO:0008375
GO:0008047
GO:0005547
GO:0016262
GO:0097363
GO:0006915
GO:0071300
GO:0006325
GO:0032922
GO:0080182
GO:0043984
GO:0043981
GO:0043982
GO:0031397
GO:0048015
GO:0043085
GO:0030854
GO:0061087
GO:0051571
GO:0045862
GO:0045944
GO:0006493
GO:0090526
GO:0006110
GO:0046626
GO:0035020
GO:0032868
GO:0007584
GO:0007165
Gene3D 1.25.40.10
InterPro IPR029489
IPR013026
IPR011990
IPR001440
IPR019734
Pfam PF13844
PF00515
SMART SM00028
PROSITE PS50005
PS50293

Annotations

Qualifier GO ID GO term name Reference ECO ID ECO term name with/from Aspect Extension Notes Status

part_of

GO:0017122

protein N-acetylglucosaminyltransferase complex

PMID:21240259[1]

ECO:0000314

direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

involved_in

GO:0120162

positive regulation of cold-induced thermogenesis

PMID:28637651[2]

ECO:0000250

sequence similarity evidence used in manual assertion

UniProtKB:Q8CGY8

P

Seeded From UniProt

complete

involved_in

GO:0032435

negative regulation of proteasomal ubiquitin-dependent protein catabolic process

PMID:26678539[3]

ECO:0000315

mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0006357

regulation of transcription by RNA polymerase II

PMID:26678539[3]

ECO:0000315

mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0031397

negative regulation of protein ubiquitination

PMID:26678539[3]

ECO:0000315

mutant phenotype evidence used in manual assertion

P

has_regulation_target:(UniProtKB:Q8IZD2)

Seeded From UniProt

complete

enables

GO:0016262

protein N-acetylglucosaminyltransferase activity

PMID:26678539[3]

ECO:0000315

mutant phenotype evidence used in manual assertion

F

Seeded From UniProt

complete

part_of

GO:0005634

nucleus

PMID:26678539[3]

ECO:0000314

direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

part_of

GO:0032991

protein-containing complex

PMID:26678539[3]

ECO:0000314

direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

enables

GO:0097363

protein O-GlcNAc transferase activity

PMID:28584052[4]

ECO:0000315

mutant phenotype evidence used in manual assertion

F

Seeded From UniProt

complete

involved_in

GO:0016485

protein processing

PMID:28584052[4]

ECO:0000315

mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

enables

GO:0097363

protein O-GlcNAc transferase activity

GO_REF:0000024

ECO:0000250

sequence similarity evidence used in manual assertion

UniProtKB:Q8CGY8

F

Seeded From UniProt

complete

involved_in

GO:0006111

regulation of gluconeogenesis

GO_REF:0000024

ECO:0000250

sequence similarity evidence used in manual assertion

UniProtKB:Q8CGY8

P

Seeded From UniProt

complete

involved_in

GO:0080182

histone H3-K4 trimethylation

PMID:23353889[5]

ECO:0000315

mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0061087

positive regulation of histone H3-K27 methylation

PMID:24474760[6]

ECO:0000315

mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0048015

phosphatidylinositol-mediated signaling

PMID:18288188[7]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

contributes_to

GO:0046972

histone acetyltransferase activity (H4-K16 specific)

PMID:20018852[8]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

involved_in

GO:0046626

regulation of insulin receptor signaling pathway

PMID:18288188[7]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0045944

positive regulation of transcription by RNA polymerase II

PMID:23352454[9]

ECO:0000315

mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0045944

positive regulation of transcription by RNA polymerase II

PMID:23222540[10]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0045944

positive regulation of transcription by RNA polymerase II

PMID:23353889[5]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0045862

positive regulation of proteolysis

PMID:21285374[11]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

contributes_to

GO:0043996

histone acetyltransferase activity (H4-K8 specific)

PMID:20018852[8]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

contributes_to

GO:0043995

histone acetyltransferase activity (H4-K5 specific)

PMID:20018852[8]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

involved_in

GO:0043984

histone H4-K16 acetylation

PMID:20018852[8]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0043982

histone H4-K8 acetylation

PMID:20018852[8]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0043981

histone H4-K5 acetylation

PMID:20018852[8]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0035020

regulation of Rac protein signal transduction

PMID:18288188[7]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0032922

circadian regulation of gene expression

GO_REF:0000024

ECO:0000250

sequence similarity evidence used in manual assertion

UniProtKB:Q8CGY8

P

Seeded From UniProt

complete

involved_in

GO:0032868

response to insulin

PMID:18288188[7]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0031397

negative regulation of protein ubiquitination

GO_REF:0000024

ECO:0000250

sequence similarity evidence used in manual assertion

UniProtKB:Q8CGY8

P

Seeded From UniProt

complete

enables

GO:0016262

protein N-acetylglucosaminyltransferase activity

PMID:24474760[6]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

enables

GO:0016262

protein N-acetylglucosaminyltransferase activity

PMID:22923583[12]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

enables

GO:0016262

protein N-acetylglucosaminyltransferase activity

PMID:23352454[9]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

enables

GO:0016262

protein N-acetylglucosaminyltransferase activity

PMID:23222540[10]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

enables

GO:0016262

protein N-acetylglucosaminyltransferase activity

PMID:23353889[5]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

enables

GO:0016262

protein N-acetylglucosaminyltransferase activity

PMID:21240259[1]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

enables

GO:0016262

protein N-acetylglucosaminyltransferase activity

PMID:21285374[11]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

involved_in

GO:0006915

apoptotic process

PMID:20824293[13]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0006493

protein O-linked glycosylation

PMID:23353889[5]

ECO:0000315

mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0006493

protein O-linked glycosylation

PMID:24474760[6]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0006493

protein O-linked glycosylation

PMID:22923583[12]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0006493

protein O-linked glycosylation

PMID:23352454[9]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0006493

protein O-linked glycosylation

PMID:23222540[10]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0006493

protein O-linked glycosylation

PMID:21285374[11]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0006493

protein O-linked glycosylation

PMID:21240259[1]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0006110

regulation of glycolytic process

PMID:22923583[12]

ECO:0000314

direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

part_of

GO:0005886

plasma membrane

PMID:18288188[7]

ECO:0000314

direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

part_of

GO:0005829

cytosol

PMID:21285374[11]

ECO:0000314

direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

part_of

GO:0005634

nucleus

PMID:21285374[11]

ECO:0000314

direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

enables

GO:0005547

phosphatidylinositol-3,4,5-trisphosphate binding

PMID:18288188[7]

ECO:0000314

direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

part_of

GO:0000123

histone acetyltransferase complex

PMID:20018852[8]

ECO:0000314

direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

enables

GO:0097363

protein O-GlcNAc transferase activity

PMID:23777819[14]

ECO:0000315

mutant phenotype evidence used in manual assertion

F

Seeded From UniProt

complete

part_of

GO:0005886

plasma membrane

GO_REF:0000052

ECO:0000314

direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

part_of

GO:0005829

cytosol

GO_REF:0000052

ECO:0000314

direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

part_of

GO:0005654

nucleoplasm

GO_REF:0000052

ECO:0000314

direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

involved_in

GO:0120162

positive regulation of cold-induced thermogenesis

GO_REF:0000107

ECO:0000265

sequence orthology evidence used in automatic assertion

UniProtKB:Q8CGY8
ensembl:ENSMUSP00000045409

P

Seeded From UniProt

complete

enables

GO:0097363

protein O-GlcNAc transferase activity

GO_REF:0000107

ECO:0000265

sequence orthology evidence used in automatic assertion

UniProtKB:Q8CGY8
ensembl:ENSMUSP00000045409

F

Seeded From UniProt

complete

involved_in

GO:0032922

circadian regulation of gene expression

GO_REF:0000107

ECO:0000265

sequence orthology evidence used in automatic assertion

UniProtKB:Q8CGY8
ensembl:ENSMUSP00000045409

P

Seeded From UniProt

complete

involved_in

GO:0031397

negative regulation of protein ubiquitination

GO_REF:0000107

ECO:0000265

sequence orthology evidence used in automatic assertion

UniProtKB:Q8CGY8
ensembl:ENSMUSP00000045409

P

Seeded From UniProt

complete

involved_in

GO:0006493

protein O-linked glycosylation

GO_REF:0000107

ECO:0000265

sequence orthology evidence used in automatic assertion

UniProtKB:Q8CGY8
ensembl:ENSMUSP00000045409

P

Seeded From UniProt

complete

involved_in

GO:0006111

regulation of gluconeogenesis

GO_REF:0000107

ECO:0000265

sequence orthology evidence used in automatic assertion

UniProtKB:Q8CGY8
ensembl:ENSMUSP00000045409

P

Seeded From UniProt

complete

involved_in

GO:0006493

protein O-linked glycosylation

GO_REF:0000002

ECO:0000256

match to sequence model evidence used in automatic assertion

InterPro:IPR037919

P

Seeded From UniProt

complete

enables

GO:0016757

transferase activity, transferring glycosyl groups

GO_REF:0000002

ECO:0000256

match to sequence model evidence used in automatic assertion

InterPro:IPR037919

F

Seeded From UniProt

complete

enables

GO:0008375

acetylglucosaminyltransferase activity

PMID:9083068[15]

ECO:0000304

author statement supported by traceable reference used in manual assertion

F

Seeded From UniProt

complete

involved_in

GO:0007584

response to nutrient

PMID:9083068[15]

ECO:0000304

author statement supported by traceable reference used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0007165

signal transduction

PMID:9083067[16]

ECO:0000304

author statement supported by traceable reference used in manual assertion

P

Seeded From UniProt

complete

involved_in

GO:0006493

protein O-linked glycosylation

PMID:9083067[16]

ECO:0000304

author statement supported by traceable reference used in manual assertion

P

Seeded From UniProt

complete

part_of

GO:0005829

cytosol

PMID:9083067[16]

ECO:0000304

author statement supported by traceable reference used in manual assertion

C

Seeded From UniProt

complete

part_of

GO:0005634

nucleus

PMID:9083067[16]

ECO:0000304

author statement supported by traceable reference used in manual assertion

C

Seeded From UniProt

complete

involved_in

GO:0016579

protein deubiquitination

Reactome:R-HSA-5688426

ECO:0000304

author statement supported by traceable reference used in manual assertion

P

Seeded From UniProt

complete

part_of

GO:0005654

nucleoplasm

Reactome:R-HSA-5689630
Reactome:R-HSA-3321805

ECO:0000304

author statement supported by traceable reference used in manual assertion


C

Seeded From UniProt

complete

involved_in

GO:0006915

apoptotic process

GO_REF:0000037

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0053

P

Seeded From UniProt

complete

involved_in

GO:0006325

chromatin organization

GO_REF:0000037

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0156

P

Seeded From UniProt

complete

part_of

GO:0042995

cell projection

GO_REF:0000037
GO_REF:0000039

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0966
UniProtKB-SubCell:SL-0280

C

Seeded From UniProt

complete

part_of

GO:0005886

plasma membrane

GO_REF:0000037
GO_REF:0000039

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-1003
UniProtKB-SubCell:SL-0039

C

Seeded From UniProt

complete

enables

GO:0016740

transferase activity

GO_REF:0000037

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0808

F

Seeded From UniProt

complete

part_of

GO:0005737

cytoplasm

GO_REF:0000037
GO_REF:0000039

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0963
UniProtKB-SubCell:SL-0086

C

Seeded From UniProt

complete

part_of

GO:0016020

membrane

GO_REF:0000037
GO_REF:0000039

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0472
UniProtKB-SubCell:SL-0162

C

Seeded From UniProt

complete

part_of

GO:0005634

nucleus

GO_REF:0000037
GO_REF:0000039

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0539
UniProtKB-SubCell:SL-0191

C

Seeded From UniProt

complete

involved_in

GO:0048511

rhythmic process

GO_REF:0000037

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0090

P

Seeded From UniProt

complete

enables

GO:0016757

transferase activity, transferring glycosyl groups

GO_REF:0000037

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0328

F

Seeded From UniProt

complete

part_of

GO:0005739

mitochondrion

GO_REF:0000037
GO_REF:0000039

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0496
UniProtKB-SubCell:SL-0173

C

Seeded From UniProt

complete

involved_in

GO:0016032

viral process

GO_REF:0000037

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0945

P

Seeded From UniProt

complete

enables

GO:0008289

lipid binding

GO_REF:0000037

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-KW:KW-0446

F

Seeded From UniProt

complete

part_of

GO:0031966

mitochondrial membrane

GO_REF:0000039

ECO:0000322

imported manually asserted information used in automatic assertion

UniProtKB-SubCell:SL-0171

C

Seeded From UniProt

complete

involved_in

GO:0006486

protein glycosylation

GO_REF:0000041

ECO:0000322

imported manually asserted information used in automatic assertion

UniPathway:UPA00378

P

Seeded From UniProt

complete

Notes

References

See Help:References for how to manage references in GONUTS.

  1. 1.0 1.1 1.2 Lazarus, MB et al. (2011) Structure of human O-GlcNAc transferase and its complex with a peptide substrate. Nature 469 564-7 PubMed GONUTS page
  2. Ohashi, N et al. (2017) Pivotal Role of -GlcNAc Modification in Cold-Induced Thermogenesis by Brown Adipose Tissue Through Mitochondrial Biogenesis. Diabetes 66 2351-2362 PubMed GONUTS page
  3. 3.0 3.1 3.2 3.3 3.4 3.5 Ding, X et al. (2015) Mixed Lineage Leukemia 5 (MLL5) Protein Stability Is Cooperatively Regulated by O-GlcNac Transferase (OGT) and Ubiquitin Specific Protease 7 (USP7). PLoS ONE 10 e0145023 PubMed GONUTS page
  4. 4.0 4.1 Willems, AP et al. (2017) Mutations in -acetylglucosamine (-GlcNAc) transferase in patients with X-linked intellectual disability. J. Biol. Chem. 292 12621-12631 PubMed GONUTS page
  5. 5.0 5.1 5.2 5.3 Deplus, R et al. (2013) TET2 and TET3 regulate GlcNAcylation and H3K4 methylation through OGT and SET1/COMPASS. EMBO J. 32 645-55 PubMed GONUTS page
  6. 6.0 6.1 6.2 Chu, CS et al. (2014) O-GlcNAcylation regulates EZH2 protein stability and function. Proc. Natl. Acad. Sci. U.S.A. 111 1355-60 PubMed GONUTS page
  7. 7.0 7.1 7.2 7.3 7.4 7.5 Yang, X et al. (2008) Phosphoinositide signalling links O-GlcNAc transferase to insulin resistance. Nature 451 964-9 PubMed GONUTS page
  8. 8.0 8.1 8.2 8.3 8.4 8.5 8.6 Cai, Y et al. (2010) Subunit composition and substrate specificity of a MOF-containing histone acetyltransferase distinct from the male-specific lethal (MSL) complex. J. Biol. Chem. 285 4268-72 PubMed GONUTS page
  9. 9.0 9.1 9.2 Vella, P et al. (2013) Tet proteins connect the O-linked N-acetylglucosamine transferase Ogt to chromatin in embryonic stem cells. Mol. Cell 49 645-56 PubMed GONUTS page
  10. 10.0 10.1 10.2 Chen, Q et al. (2013) TET2 promotes histone O-GlcNAcylation during gene transcription. Nature 493 561-4 PubMed GONUTS page
  11. 11.0 11.1 11.2 11.3 11.4 Daou, S et al. (2011) Crosstalk between O-GlcNAcylation and proteolytic cleavage regulates the host cell factor-1 maturation pathway. Proc. Natl. Acad. Sci. U.S.A. 108 2747-52 PubMed GONUTS page
  12. 12.0 12.1 12.2 Yi, W et al. (2012) Phosphofructokinase 1 glycosylation regulates cell growth and metabolism. Science 337 975-80 PubMed GONUTS page
  13. Shin, SH et al. (2011) Elevated O-GlcNAc-dependent signaling through inducible mOGT expression selectively triggers apoptosis. Amino Acids 40 885-93 PubMed GONUTS page
  14. Mizuguchi-Hata, C et al. (2013) Quantitative regulation of nuclear pore complex proteins by O-GlcNAcylation. Biochim. Biophys. Acta 1833 2682-9 PubMed GONUTS page
  15. 15.0 15.1 Lubas, WA et al. (1997) O-Linked GlcNAc transferase is a conserved nucleocytoplasmic protein containing tetratricopeptide repeats. J. Biol. Chem. 272 9316-24 PubMed GONUTS page
  16. 16.0 16.1 16.2 16.3 Kreppel, LK et al. (1997) Dynamic glycosylation of nuclear and cytosolic proteins. Cloning and characterization of a unique O-GlcNAc transferase with multiple tetratricopeptide repeats. J. Biol. Chem. 272 9308-15 PubMed GONUTS page