Kromosomang 3 (tao)

Ang kromosomang 3 o kulaylawas na 3 (Ingles: Chromosome 3) ang isa sa 23 mga pares ng kromosoma sa mga tao. Ang mga tao ay normal na mayroong dalawang kopya ng kromosomang ito. Ang kromosomang 3 ay sumasaklaw sa halos 200 milyong mga base na pares na pantayong materyal ng DNA at kumakatawan sa mga 6.5 porsiyento ng kabuuang DNA sa mga selula. 

Ang pagtukoy ng mga gene sa bawat kromosoma ay isang aktibong henetikong pagsasaliksik. Dahil sa ang mga mananaliksik ay gumagamit ng iba't ibang mga paraan sa paghula ng bilang ng mga gene sa bawat kromosoma, ang tinantiyang bilang ng mga gene ay iba iba. Ang kromosomang 3 ay malamang na naglalaman sa pagitan ng 1,100 at 1,500 mga gene.

Mga gene 
Ang mga sumusunod ang ilan sa mga gene na matatagpuan sa kromosomang 3:

brasong-p 
 ALAS1: aminolevulinate, delta-, synthase 1
 BTD: biotinidase
 CCR5: chemokine (C-C motif) receptor 5
 CNTN4: Contactin 4
 COL7A1: Collagen, type VII, alpha 1 (epidermolysis bullosa, dystrophic, dominant and recessive)
 C3orf14-Chromosome 3 open reading frame 14: predicted DNA binding protein. 
 MITF: microphthalmia-associated transcription factor
 MLH1: mutL homolog 1, colon cancer, nonpolyposis type 2 (E. coli)
 OXTR: oxytocin receptor
 PTHR1: parathyroid hormone receptor 1
 SCN5A: sodium channel, voltage-gated, type V, alpha (long QT syndrome 3)
 SLC25A20: solute carrier family 25 (carnitine/acylcarnitine translocase), member 20
 TMIE: transmembrane inner ear
 VHL: von Hippel-Lindau tumor suppressor

brasong-q 
 ADIPOQ: adiponectin
 CPOX: coproporphyrinogen oxidase (coproporphyria, harderoporphyria)
 HGD: homogentisate 1,2-dioxygenase (homogentisate oxidase)
 IFT122: intraflagellar transport gene 122
 MCCC1: methylcrotonoyl-Coenzyme A carboxylase 1 (alpha)
 PCCB: propionyl Coenzyme A carboxylase, beta polypeptide
 PDCD10: programmed cell death 10
 PIK3CA: phosphoinositide-3-kinase, catalytic, alpha polypeptide
 RAB7: RAB7, member RAS oncogene family
 RHO: rhodopsin visual pigment
 SOX2: transcription factor
 USH3A: Usher syndrome 3A
 ZNF9: zinc finger protein 9 (a cellular retroviral nucleic acid binding protein)

Mga sakit at diperensiya 
Ang mga sumusunod na sakit ang ilan sa mga nauugnay sa mga gene sa kromosomang 3:
 3-methylcrotonyl-CoA carboxylase deficiency
 3q29 microdeletion syndrome
 Alkaptonuria
 Arrhythmogenic right ventricular dysplasia
 Atransferrinemia
 Autism
 Biotinidase deficiency
 Blepharophimosis, epicanthus inversus and ptosis type 1
 Breast/colon/lung/pancreatic cancer
 Brugada syndrome
 Castillo fever
 Carnitine-acylcarnitine translocase deficiency
 Cataracts
 Cerebral cavernous malformation
 Charcot-Marie-Tooth disease, type 2
 Charcot-Marie-Tooth disease
 Chromosome 3q duplication syndrome
 Coproporphyria
 Deafness
 Diabetes
 Dopamine receptor
 Dystrophic epidermolysis bullosa
 Endplate acetlycholinesterase deficiency
 Essential tremors
 Glaucoma, primary open angle
 Glycogen storage disease
 Hailey-Hailey disease
 Harderoporphyrinuria
 Heart block, progressive/nonprogressive
 Hereditary coproporphyria
 Hereditary nonpolyposis colorectal cancer
 HIV infection, susceptibility/resistance to
 Hypobetalipoproteinemia, familial
 Hypothermia
 Leukoencephalopathy with vanishing white matter
 Long QT syndrome
 Lymphomas
 Malignant hyperthermia susceptibility
 Metaphyseal chondrodysplasia, Murk Jansen type
 Moebius syndrome
 Moyamoya disease
 Mucopolysaccharidosis
 Muir-Torre family cancer syndrome
 Myotonic dystrophy, type 2
 Myotonic dystrophy 
 Neuropathy, hereditary motor and sensory, Okinawa type
 Night blindness
 Nonsyndromic deafness, autosomal recessive
 Nonsyndromic deafness
 Ovarian cancer
 Porphyria
 Propionic acidemia
 Protein S deficiency
 Pseudo-Zellweger syndrome
 Retinitis pigmentosa
 Romano-Ward syndrome
 Sensenbrenner syndrome
 Septo-optic dysplasia
 Short stature
 Spinocerebellar ataxia
 Sucrose intolerance
 T-cell leukemia translocation altered gene
 Usher syndrome type III
 Usher syndrome (Finland)
 Usher syndrome
 von Hippel-Lindau syndrome
 Waardenburg syndrome
 Xeroderma pigmentosum, complementation group c

Mga sanggunian 

Mga kromosoma