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- **********************************************************************
- * SRF-type transcription factors DNA-binding and dimerization domain *
- **********************************************************************
-
- A number of transcription factors contain a conserved domain of 56 amino-acid
- residues, sometimes known as the MADS-domain. They are listed below:
-
- - The serum response factor (SRF) [1], a mammalian transcription factor that
- binds to the Serum Response Element (SRE). This is a short sequence of dyad
- symmetry located 300 bp to the 5' end of the transcription initiation site
- of genes such as c-fos.
- - Yeast GRM/PRTF protein (gene MCM1) [2], a transcriptional regulator of
- mating-type-specific genes.
- - Yeast arginine metabolism regulation protein I (gene ARGR1 or ARG80).
- - Arabidopsis thaliana agamous protein (AG) [3], a probable transcription
- factor involved in regulating genes that determines stamen and carpel
- development in wild-type flowers. Mutations in the AG gene result in the
- replacement of the stamens by petals and the carpels by a new flower.
- - Arabidopsis thaliana homeotic proteins Apetala1 (AP1) and Apetala3 (AP3)
- which act locally to specify the identity of the floral meristem and to
- determine sepal and petal development [4].
- - Antirrhinum majus and tobacco homeotic protein deficiens (DEFA) and globosa
- (GLO) [5]. Both proteins are transcription factors involved in the genetic
- control of flower development. Mutations in DEFA or GLO cause the
- transformation of petals into sepals and of stamina into carpels.
- - Arabidopsis thaliana putative transcription factors AGL1 to AGL6 [6].
- - Antirrhinum majus morphogenetic protein DEF H33 (squamosa).
-
- In SRF, the conserved domain has been shown [1] to be involved in DNA-binding
- and dimerization. We have derived a pattern that spans the complete length of
- the domain.
-
- -Consensus pattern: R-x-[RK]-x(5)-I-[DE]-N-x(3)-R-x(2)-T-[FY]-x-[RK](3)-x(2)-
- [LIVM]-x-K(2)-A-x-E-[LIVM]-[ST]-x-L-x(4)-[LIVM]-x-
- [LIVM](3)-x(6)-[LIVM]-x(2)-[FY]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: June 1994 / Pattern and text revised.
-
- [ 1] Norman C., Runswick M., Pollock R., Treisman R.
- Cell 55:989-1003(1988).
- [ 2] Passmore S., Maine G.T., Elble R., Christ C., Tye B.K.
- J. Mol. Biol. 204:593-606(1988).
- [ 3] Yanofsky M., Ma H., Bowman J., Drews G., Feldmann K.A., Meyerowitz E.M.
- Nature 346:35-39(1990).
- [ 4] Mandel A., Gustafson-Brown C., Savidge B., Yanofsky M.
- Nature 360:273-277(1992).
- [ 5] Troebner W., Ramirez L., Motte P., Hue I., Huijser P., Loennig W.-E.,
- Saedler H., Sommer H., Schwartz-Sommer Z.
- EMBO J. 11:4693-4704(1992).
- [ 6] Ma H., Yanofsky M.F., Meyerowitz E.M.
- Genes Dev. 5:484-495(1991).
-