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Gene Ontology Classifications
Symbol
Name
ID
Cryba4
crystallin, beta A4
MGI:102716

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Summary from NCBI RefSeq

[Summary is not available for the mouse gene. This summary is for the human ortholog.] Crystallins are separated into two classes: taxon-specific, or enzyme, and ubiquitous. The latter class constitutes the major proteins of vertebrate eye lens and maintains the transparency and refractive index of the lens. Since lens central fiber cells lose their nuclei during development, these crystallins are made and then retained throughout life, making them extremely stable proteins. Mammalian lens crystallins are divided into alpha, beta, and gamma families; beta and gamma crystallins are also considered as a superfamily. Alpha and beta families are further divided into acidic and basic groups. Seven protein regions exist in crystallins: four homologous motifs, a connecting peptide, and N- and C-terminal extensions. Beta-crystallins, the most heterogeneous, differ by the presence of the C-terminal extension (present in the basic group, none in the acidic group). Beta-crystallins form aggregates of different sizes and are able to self-associate to form dimers or to form heterodimers with other beta-crystallins. This gene, a beta acidic group member, is part of a gene cluster with beta-B1, beta-B2, and beta-B3. [provided by RefSeq, Jul 2008]



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Gene Ontology Evidence Code Abbreviations:

Experimental:
EXP
Inferred from experiment
IDA
Inferred from direct assay
IEP
Inferred from expression pattern
IGI
Inferred from genetic interaction
IMP
Inferred from mutant phenotype
IPI
Inferred from physical interaction
Homology:
IAS
Inferred from ancestral sequence
IBA
Inferred from biological aspect of ancestor
IBD
Inferred from biological aspect of descendant
IKR
Inferred from key residues
IMR
Inferred from missing residues
IRD
Inferred from rapid divergence
ISA
Inferred from sequence alignment
ISM
Inferred from sequence model
ISO
Inferred from sequence orthology
ISS
Inferred from sequence or structural similarity
Automated:
IEA
Inferred from electronic annotation
RCA
Reviewed computational analysis
Other:
IC
Inferred by curator
NAS
Non-traceable author statement
ND
No biological data available
TAS
Traceable author statement

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Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Tumor Biology (MTB), Gene Ontology (GO), MouseCyc
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last database update
08/17/2016
MGI 6.05
The Jackson Laboratory