Probable transcription factor. Forms an heterodimer via the K-box domain with AG, that could be involved in genes regulation during floral meristem development.
Arabidopsis thaliana (taxid: 3702)
>sp|Q38876|AGL8_ARATH Agamous-like MADS-box protein AGL8 OS=Arabidopsis thaliana GN=AGL8 PE=1 SV=1
Probable transcription factor that promotes early floral meristem identity in synergy with APETALA1 and CAULIFLOWER. Is required subsequently for the transition of an inflorescence meristem into a floral meristem. Seems to be partially redundant to the function of APETALA1 and CAULIFLOWER in the up-regulation of LEAFY. Is also required for normal pattern of cell division, expansion and differentiation during morphogenesis of the silique. Probably not required for fruit elongation but instead is required to prevent ectopic activity of IND.
Arabidopsis thaliana (taxid: 3702)
>sp|O22456|SEP3_ARATH Developmental protein SEPALLATA 3 OS=Arabidopsis thaliana GN=SEP3 PE=1 SV=1
Probable transcription factor active in inflorescence development and floral organogenesis. Functions with SEPALLATA1/AGL2 and SEPALLATA2/AGL4 to ensure proper development of petals, stamens and carpels and to prevent the indeterminate growth of the flower meristem. Interacts with APETALA1, AGAMOUS or APETALA3/PISTILLATA to form complexes, that could be involved in genes regulation during floral meristem development.
Arabidopsis thaliana (taxid: 3702)
>sp|Q41274|AGL8_SINAL Agamous-like MADS-box protein AGL8 homolog OS=Sinapis alba GN=AGL8 PE=2 SV=1
Binds DNA and exists as hetero and homo-dimers. Differs from SRF-like/Type I subgroup mainly in position of the alpha helix responsible for the dimerization interface. Important in homeotic regulation in plants and in immediate-early development in animals. Also found in fungi. Length = 77
>gnl|CDD|238067 cd00120, MADS, MADS: MCM1, Agamous, Deficiens, and SRF (serum response factor) box family of eukaryotic transcriptonal regulators
Binds DNA and exists as hetero and homo-dimers. Composed of 2 main subgroups: SRF-like/Type I and MEF2-like (myocyte enhancer factor 2)/ Type II. These subgroups differ mainly in position of the alpha 2 helix responsible for the dimerization interface; Important in homeotic regulation in plants and in immediate-early development in animals. Also found in fungi. Length = 59
>gnl|CDD|238166 cd00266, MADS_SRF_like, SRF-like/Type I subfamily of MADS (MCM1, Agamous, Deficiens, and SRF (serum response factor) box family of eukaryotic transcriptional regulators
Binds DNA and exists as hetero- and homo-dimers. Differs from the MEF-like/Type II subgroup mainly in position of the alpha 2 helix responsible for the dimerization interface. Important in homeotic regulation in plants and in immediate-early development in animals. Also found in fungi. Length = 83
>gnl|CDD|109379 pfam00319, SRF-TF, SRF-type transcription factor (DNA-binding and dimerisation domain)
Score = 57.3 bits (138), Expect = 2e-11
Identities = 23/57 (40%), Positives = 35/57 (61%)
Query: 1 MGRVRLQIKKIENRTYRHITFAKRKSGLVKKAYEISTLCDVEVALIIFSPAGKLILF 57
+ ++ I I N+T R +TF+KRK G+ KKA+E+S L EV L++ S G + F
Sbjct: 81 VTGRKIGISYITNKTKRSVTFSKRKHGINKKAFELSVLTGTEVLLLVISENGLVHTF 137
Binds DNA and exists as hetero and homo-dimers. Differs from SRF-like/Type I subgroup mainly in position of the alpha helix responsible for the dimerization interface. Important in homeotic regulation in plants and in immediate-early development in animals. Also found in fungi.
>cd00266 MADS_SRF_like SRF-like/Type I subfamily of MADS (MCM1, Agamous, Deficiens, and SRF (serum response factor) box family of eukaryotic transcriptional regulators
Binds DNA and exists as hetero- and homo-dimers. Differs from the MEF-like/Type II subgroup mainly in position of the alpha 2 helix responsible for the dimerization interface. Important in homeotic regulation in plants and in immediate-early development in animals. Also found in fungi.
Binds DNA and exists as hetero and homo-dimers. Composed of 2 main subgroups: SRF-like/Type I and MEF2-like (myocyte enhancer factor 2)/ Type II. These subgroups differ mainly in position of the alpha 2 helix responsible for the dimerization interface; Important in homeotic regulation in plants and in immediate-early development in animals. Also found in fungi.
>PF00319 SRF-TF: SRF-type transcription factor (DNA-binding and dimerisation domain); InterPro: IPR002100 Human serum response factor (SRF) is a ubiquitous nuclear protein important for cell proliferation and differentiation
SRF function is essential for transcriptional regulation of numerous growth-factor-inducible genes, such as c-fos oncogene and muscle-specific actin genes. A core domain of around 90 amino acids is sufficient for the activities of DNA-binding, dimerisation and interaction with accessory factors. Within the core is a DNA-binding region, designated the MADS box [], that is highly similar to many eukaryotic regulatory proteins: among these are MCM1, the regulator of cell type-specific genes in fission yeast; DSRF, a Drosophila trachea development factor; the MEF2 family of myocyte-specific enhancer factors; and the Agamous and Deficiens families of plant homeotic proteins. In SRF, the MADS box has been shown to be involved in DNA-binding and dimerisation []. Proteins belonging to the MADS family function as dimers, the primary DNA-binding element of which is an anti-parallel coiled coil of two amphipathic alpha-helices, one from each subunit. The DNA wraps around the coiled coil allowing the basic N-termini of the helices to fit into the DNA major groove. The chain extending from the helix N-termini reaches over the DNA backbone and penetrates into the minor groove. A 4-stranded, anti-parallel beta-sheet packs against the coiled-coil face opposite the DNA and is the central element of the dimerisation interface. The MADS-box domain is commonly found associated with K-box region see IPR002487 from INTERPRO ; GO: 0003677 DNA binding, 0046983 protein dimerization activity; PDB: 1MNM_B 1N6J_A 1TQE_S 3MU6_D 3P57_I 1EGW_A 1C7U_B 3KOV_A 1HBX_A 1K6O_C ....
>KOG0015 consensus Regulator of arginine metabolism and related MADS box-containing transcription factors [Transcription]
>pdb|3KOV|A Chain A, Structure Of Mef2a Bound To Dna Reveals A Completely Folded Mads-BoxMEF2 DOMAIN THAT RECOGNIZES DNA AND RECRUITS Transcription Co-Factors Length = 90