Protein Domain : IPR002487

Type:  Domain Name:  Transcription factor, K-box
Description:  MADS genes in plants encode key developmental regulators of vegetative and reproductive development. The majority of the plant MADS proteins share a stereotypical MIKC structure. It comprises (from N- to C-terminal) an N-terminal domain, which is, however, present only in a minority of proteins; a MADS domain (see , ), which is the major determinant of DNA-binding but which also performs dimerisation and accessory factor binding functions; a weakly conserved intervening (I) domain, which constitutes a key molecular determinant for the selective formation of DNA-binding dimers; a keratin-like (K-box) domain, which promotes protein dimerisation; and a C-terminal (C) domain, which is involved in transcriptional activation or in the formation of ternary or quaternary protein complexes. The 80-amino acid K-box domain was originally identified as a region with low but significant similarity to a region of keratin, which is part of the coiled-coil sequence constituting the central rod-shaped domain of keratin [, , ].The K-box protein-protein interaction domain which mediates heterodimerization of MIKC-type MADS proteins contains several heptad repeats in which the first and the fourth positions are occupied by hydrophobic amino acids suggesting that the K-box domain forms three amphipathic alpha-helices referred to as K1, K2, and K3 []. Short Name:  TF_Kbox

0 Child Features

0 Contains

2 Cross Referencess

Identifier
PF01486
PS51297

0 Found In

3 GO Annotations

GO Term Gene Name
GO:0003700 IPR002487
GO:0006355 IPR002487
GO:0005634 IPR002487

3 Ontology Annotations

GO Term Gene Name
GO:0003700 IPR002487
GO:0006355 IPR002487
GO:0005634 IPR002487

0 Parent Features

3256 Proteins

DB identifier UniProt Accession Secondary Identifier Organism Name Length
411018 PAC:15405420 Selaginella moellendorffii 141  
4727 PAC:15418059 Selaginella moellendorffii 205  
121275 PAC:15416177 Selaginella moellendorffii 227  
235487 PAC:15406183 Selaginella moellendorffii 217  
evm.TU.contig_37200.1 PAC:16431000 Carica papaya 150  
evm.model.supercontig_1.162 PAC:16404080 Carica papaya 244  
evm.model.supercontig_125.55 PAC:16407287 Carica papaya 246  
evm.model.supercontig_13.95 PAC:16407906 Carica papaya 172  
evm.model.supercontig_14.225 PAC:16408731 Carica papaya 195  
evm.model.supercontig_14.222 PAC:16408728 Carica papaya 263  
evm.model.supercontig_177.12 PAC:16411109 Carica papaya 159  
evm.model.supercontig_21.11 PAC:16413381 Carica papaya 226  
evm.model.supercontig_21.50 PAC:16413562 Carica papaya 182  
evm.model.supercontig_26.316 PAC:16415268 Carica papaya 210  
evm.model.supercontig_29.35 PAC:16416242 Carica papaya 116  
evm.model.supercontig_3.196 PAC:16416475 Carica papaya 258  
evm.model.supercontig_30.148 PAC:16416942 Carica papaya 769  
evm.model.supercontig_414.3 PAC:16419652 Carica papaya 247  
evm.model.supercontig_43.78 PAC:16420039 Carica papaya 243  
evm.model.supercontig_50.73 PAC:16421697 Carica papaya 228  
evm.model.supercontig_55.31 PAC:16422596 Carica papaya 219  
evm.model.supercontig_6.202 PAC:16423379 Carica papaya 227  
evm.model.supercontig_6.199 PAC:16423374 Carica papaya 212  
evm.model.supercontig_660.1 PAC:16424669 Carica papaya 243  
evm.model.supercontig_66.98 PAC:16424667 Carica papaya 194  
evm.model.supercontig_961.1 PAC:16429021 Carica papaya 148  
29775.m000102 B9T5B9 PAC:16808305 Ricinus communis 175  
29782.m000119 B9T4Y6 PAC:16808437 Ricinus communis 235  
29790.m000813 B9SIU7 PAC:16808558 Ricinus communis 180  
29790.m000814 B9SIU8 PAC:16808559 Ricinus communis 188  

3 Publications

First Author Title Year Journal Volume Pages PubMed ID
            10805792
            12032236
            12943540