CRYBB3

Protein-coding gene in the species Homo sapiens

CRYBB3

Available structures

PDB

Ortholog search: PDBe RCSB

List of PDB id codes
3QK3

Identifiers

Aliases

CRYBB3, CATCN2, CRYB3, CTRCT22, crystallin beta B3

External IDs

OMIM: 123630; MGI: 102717; HomoloGene: 3008; GeneCards: CRYBB3; OMA:CRYBB3 - orthologs

Gene location (Human)

Chr.	Chromosome 22 (human)^[1]

Band	22q11.23	Start	25,199,858 bp^[1]
Band	22q11.23	End	25,207,359 bp^[1]

Gene location (Mouse)

Chr.	Chromosome 5 (mouse)^[2]

Band	5 F\|5 55.38 cM	Start	113,075,839 bp^[2]
Band	5 F\|5 55.38 cM	End	113,081,584 bp^[2]

RNA expression pattern

Bgee

Human

Mouse (ortholog)

Top expressed in

right lobe of liver

lens

left lobe of thyroid gland

right lobe of thyroid gland

kidney

minor salivary glands

right uterine tube

ascending aorta

skeletal muscle tissue

vagina

Top expressed in

lens

conjunctival fornix

retinal pigment epithelium

ciliary body

iris

cornea

sexually immature organism

morula

islet of Langerhans

ankle

More reference expression data

BioGPS


More reference expression data

Orthologs

Species

Human

Mouse

Entrez


1417


12962

Ensembl


ENSG00000100053


ENSMUSG00000029352

UniProt


P26998


Q9JJU9

RefSeq (mRNA)


NM_004076


NM_001159650 NM_021352

RefSeq (protein)


NP_004067

NP_001153122 NP_067327 NP_001345933 NP_001345934 NP_001345935
NP_001345936 NP_001345937

Location (UCSC)

Chr 22: 25.2 – 25.21 Mb

Chr 5: 113.08 – 113.08 Mb

PubMed search

^[3]

^[4]

Wikidata

View/Edit Human

View/Edit Mouse

Beta-crystallin B3 is a protein that in humans is encoded by the CRYBB3 gene.^[5]^[6]

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 basic group member, is part of a gene cluster with beta-A4, beta-B1, and beta-B2.^[6]

References

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000100053 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000029352 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ Lampi KJ, Ma Z, Shih M, Shearer TR, Smith JB, Smith DL, David LL (Feb 1997). "Sequence analysis of betaA3, betaB3, and betaA4 crystallins completes the identification of the major proteins in young human lens". J Biol Chem. 272 (4): 2268–75. doi:10.1074/jbc.272.4.2268. PMID 8999933.
^ ^a ^b "Entrez Gene: CRYBB3 crystallin, beta B3".

External links

Human CRYBB3 genome location and CRYBB3 gene details page in the UCSC Genome Browser.

Aarts HJ, Jacobs EH, van Willigen G, et al. (1989). "Different evolution rates within the lens-specific beta-crystallin gene family". J. Mol. Evol. 28 (4): 313–21. Bibcode:1989JMolE..28..313A. doi:10.1007/BF02103427. PMID 2499686. S2CID 40148208.
Kramer P, Yount J, Mitchell T, et al. (1996). "A second gene for cerulean cataracts maps to the beta crystallin region on chromosome 22". Genomics. 35 (3): 539–42. doi:10.1006/geno.1996.0395. PMID 8812489.
Kimoto Y (1997). "A possibility of all mRNA expression in a human single lymphocyte". Hum. Cell. 9 (4): 367–70. PMID 9183670.
Dunham I, Shimizu N, Roe BA, et al. (1999). "The DNA sequence of human chromosome 22". Nature. 402 (6761): 489–95. Bibcode:1999Natur.402..489D. doi:10.1038/990031. PMID 10591208.
MacCoss MJ, McDonald WH, Saraf A, et al. (2002). "Shotgun identification of protein modifications from protein complexes and lens tissue". Proc. Natl. Acad. Sci. U.S.A. 99 (12): 7900–5. Bibcode:2002PNAS...99.7900M. doi:10.1073/pnas.122231399. PMC 122992. PMID 12060738.
Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
Collins JE, Wright CL, Edwards CA, et al. (2005). "A genome annotation-driven approach to cloning the human ORFeome". Genome Biol. 5 (10): R84. doi:10.1186/gb-2004-5-10-r84. PMC 545604. PMID 15461802.
Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
Riazuddin SA, Yasmeen A, Yao W, et al. (2005). "Mutations in betaB3-crystallin associated with autosomal recessive cataract in two Pakistani families". Invest. Ophthalmol. Vis. Sci. 46 (6): 2100–6. doi:10.1167/iovs.04-1481. PMID 15914629.