The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

"
Helix-loop-helix DNA-binding domain
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 86: protein extra-macrochaetae

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 2 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Transcription corepressor activity GO:0003714
A protein or a member of a complex that interacts specifically and non-covalently with a DNA-bound DNA-binding transcription factor to repress the transcription of specific genes. Corepressors often act by altering chromatin structure and modifications. For example, one class of transcription coregulators modifies chromatin structure through covalent modification of histones. A second ATP-dependent class modifies the conformation of chromatin. A third class occludes DNA-binding transcription factor protein-protein interaction domains. A fourth class of corepressors prevents interactions of DNA bound DNA-binding transcription factor with coactivators.
1 P18491 (/IDA)
Protein heterodimerization activity GO:0046982
Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
1 P18491 (/IPI)

There are 20 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Negative regulation of transcription by RNA polymerase II GO:0000122
Any process that stops, prevents, or reduces the frequency, rate or extent of transcription mediated by RNA polymerase II.
1 P18491 (/TAS)
Dorsal closure GO:0007391
The process during Drosophila embryogenesis whereby the ectodermal cells of the lateral epithelium stretch in a coordinated fashion to internalize the amnioserosa cells and close the embryo dorsally.
1 P18491 (/IMP)
Progression of morphogenetic furrow involved in compound eye morphogenesis GO:0007458
The morphogenetic furrow is a dorsoventral indentation which sweeps anteriorly across the eye disc. Ommatidia begin to form along the furrow, resulting in a graded series of ommatidial development across the anterior/posterior axis of the disc.
1 P18491 (/IMP)
Imaginal disc-derived wing morphogenesis GO:0007476
The process in which the anatomical structures of the imaginal disc-derived wing are generated and organized. The wing is an appendage modified for flying.
1 P18491 (/IGI)
Imaginal disc-derived wing morphogenesis GO:0007476
The process in which the anatomical structures of the imaginal disc-derived wing are generated and organized. The wing is an appendage modified for flying.
1 P18491 (/IMP)
Midgut development GO:0007494
The process whose specific outcome is the progression of the midgut over time, from its formation to the mature structure. The midgut is the middle part of the alimentary canal from the stomach, or entrance of the bile duct, to, or including, the large intestine.
1 P18491 (/IMP)
Sex determination GO:0007530
Any process that establishes and transmits the specification of sexual status of an individual organism.
1 P18491 (/IGI)
Sex determination, primary response to X:A ratio GO:0007541
The developmental process in which an organism interprets its X to autosomal chromosomal complement.
1 P18491 (/TAS)
Head involution GO:0008258
Movement of the anterior ectoderm to the interior of the embryo.
1 P18491 (/IMP)
Chaeta morphogenesis GO:0008407
The process in which the anatomical structures of the chaeta are generated and organized. A chaeta is a sensory multicellular cuticular outgrowth of a specifically differentiated cell.
1 P18491 (/TAS)
Imaginal disc-derived wing vein morphogenesis GO:0008586
The process in which anatomical structures of the veins on an imaginal disc-derived wing are generated and organized.
1 P18491 (/IGI)
Imaginal disc-derived wing vein morphogenesis GO:0008586
The process in which anatomical structures of the veins on an imaginal disc-derived wing are generated and organized.
1 P18491 (/IMP)
Chorion-containing eggshell pattern formation GO:0030381
The regionalization process that gives rise to the structural pattern of a chorion-containing eggshell such as those found in insects.
1 P18491 (/IMP)
Compound eye cone cell differentiation GO:0042675
The process in which a relatively unspecialized cell acquires the specialized features of a compound eye cone cell, a cone-shaped cell, that focuses light in a compound eye.
1 P18491 (/IMP)
Negative regulation of DNA binding GO:0043392
Any process that stops or reduces the frequency, rate or extent of DNA binding. DNA binding is any process in which a gene product interacts selectively with DNA (deoxyribonucleic acid).
1 P18491 (/IDA)
R7 cell differentiation GO:0045466
The process in which a relatively unspecialized cell acquires the specialized features of the R7 photoreceptor.
1 P18491 (/IMP)
Negative regulation of transcription, DNA-templated GO:0045892
Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.
1 P18491 (/IDA)
Photoreceptor cell fate commitment GO:0046552
The process in which the developmental fate of a cell becomes restricted such that it will develop into a photoreceptor cell. A photoreceptor cell is a cell that responds to incident electromagnetic radiation. Different classes of photoreceptor have different spectral sensitivities and express different photosensitive pigments.
1 P18491 (/IMP)
Dorsal appendage formation GO:0046843
Establishment of the dorsal filaments, elaborate specializations of the chorion that protrude from the anterior end of the egg and facilitate embryonic respiration.
1 P18491 (/IMP)
R3/R4 cell differentiation GO:0048056
The process in which relatively unspecialized cells acquire the specialized features of R3 and R4 photoreceptors. An example of this process is found in Drosophila melanogaster.
1 P18491 (/IMP)

There are 2 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 P18491 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 P18491 (/HDA)
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