Probable transcription factor. Required for root plasticity in response to nitrate, NO(3)(-). Promotes lateral root growth in a NRT1.1-dependent manner.
Arabidopsis thaliana (taxid: 3702)
>sp|Q9SZJ6|AGL21_ARATH Agamous-like MADS-box protein AGL21 OS=Arabidopsis thaliana GN=AGL21 PE=1 SV=1
Probable transcription factor involved in the negative regulation of flowering, probably through the photoperiodic pathway. Prevents premature flowering. Downstream regulator of a subset of the MIKC* MADS-controlled genes required during pollen maturation.
>gi|357485341|ref|XP_003612958.1| MADS-box protein [Medicago truncatula] gi|163889373|gb|ABY48143.1| MADS-box protein [Medicago truncatula] gi|355514293|gb|AES95916.1| MADS-box protein [Medicago truncatula]
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
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
Score = 81.5 bits (202), Expect = 2e-22
Identities = 33/60 (55%), Positives = 41/60 (68%)
Query: 2 GRGKIVIQKINNSTSRQVTFSKRRKGLIKKAKELSILCDAEVGLAIFSSTAKLYEFANTR 61
GR KI I++I N R VTFSKRR+GL KKA ELS LC AEV + ++S + KLY F +
Sbjct: 1 GRKKIKIKRIENKKKRAVTFSKRRQGLFKKASELSTLCGAEVAVIVYSPSGKLYVFWPSS 60
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 = 55.8 bits (134), Expect = 4e-11
Identities = 26/58 (44%), Positives = 33/58 (56%)
Query: 1 MGRGKIVIQKINNSTSRQVTFSKRRKGLIKKAKELSILCDAEVGLAIFSSTAKLYEFA 58
+ KI I I N T R VTFSKR+ G+ KKA ELS+L EV L + S ++ F
Sbjct: 81 VTGRKIGISYITNKTKRSVTFSKRKHGINKKAFELSVLTGTEVLLLVISENGLVHTFT 138
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.
>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.
>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
Score = 89.0 bits (221), Expect = 4e-26
Identities = 28/61 (45%), Positives = 38/61 (62%)
Query: 2 GRGKIVIQKINNSTSRQVTFSKRRKGLIKKAKELSILCDAEVGLAIFSSTAKLYEFANTR 61
R KI I+ I N T R VTFSKR+ G++KKA ELS+L +V L + S T +Y F+ +
Sbjct: 3 ERRKIEIKFIENKTRRHVTFSKRKHGIMKKAFELSVLTGTQVLLLVVSETGLVYTFSTPK 62
Query: 62 L 62
Sbjct: 63 F 63