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. 2014 Feb 12;522(5):1072–1101. doi: 10.1002/cne.23466

Table 5.

Postnatal Distribution (P1–P24) of the Small-Conductance Calcium-Activated Potassium Channel Subunit SK21

Brain region P1 P3 P6 P12 P24
Olfactory system
 Endopiriform nucleus ++ ++ ++ ++ ++
 Olfactory bulb
  Glomerular layer +
  Mitral cell layer + + ++ ++ ++
  Int. granular layer + + ++ ++ ++
 Accessory olfactory bulb
 Anterior olfactory nucleus ++ ++ ++ +++ +++
 Olfactory tubercle ++ ++ + ++ ++
 Islands of Calleja ++ ++ ++ ++ ++
Cerebral cortex
 Piriform cortex ++ ++ ++ +++ ++
 Entorhinal cortex +++ +++ ++ +++ +++
 Marginal zone np np np
 Cortical plate +++ +++ np np np
 Subplate + ++ np np np
 Alternative layer II/III np np ++ + +
 Alternative layer IV np np +++ + +
 Alternative layer V +++ +++ ++ +++ +++
 Alternative layer VI +++ +++ ++ ++ +++
 Hippocampal formation
  Subiculum +++ +++ +++ +++ +++
  CA1 ++ ++ +++ +++ +++
  CA2/CA3 ++ ++ ++ +++ +++
  Dentate gyrus granule cells + + + + +
  Tenia tecta +++ +++ +++ +++ +++
Basal nuclei
 Caudate putamen + + + + +
 Globus pallidus
 Entopeduncular nucleus ++ ++ ++ ++ ++
 Nucleus accumbens
 Claustrum + +
 Substantia nigra
  Pars reticolata + ++ ++ ++
  Pars compacta
Septum
 Septum ++ ++ ++ ++ ++
 Bed nucleus stria terminalis + + + + +
Amygdala
 Anterior amygdaloid area ++ ++ ++ ++ ++
 Anterior cortical amygdaloid nucleus ++ ++ ++ ++ ++
 Medial amygdaloid nucleus + + ++ ++ ++
 Posterior cortical amygdaloid nucleus ++ ++ ++ ++ ++
 Basolateral amygdaloid nucleus +++ +++ +++ +++ +++
 Basomedial amygdaloid nucleus + + ++ +++ +++
 Amygdalohippocampal area +++ +++ +++ +++ +++
 Amygdalopiriform transition + ++ ++ ++ ++
 Central amygdaloid nucleus ++ ++ ++ ++ ++
Thalamus
 Reticular thalamic nucleus +++ +++ +++ +++ +++
 Anterodorsal nucleus ++ +++ +++ +++ +++
 Anteroventral nucleus ++ ++ ++ ++ ++
 Anteromedial nucleus + ++ ++ ++ ++
 Laterodorsal nucleus + + ++
 Paratenial nucleus + + +
 Mediodorsal nucleus ++ ++ ++ ++ ++
 Ventrolateral nucleus +++ ++ ++ ++ ++
 Paraventricular nucleus, anterior
 Paraventricular nucleus, posterior + +
 Central medial nucleus + +
 Ventromedial nucleus ++ ++ ++
 Ventroposterolateral thalamic nucleus +++ +++ +++
 Ventroposteromedial thalamic nucleus +++ +++ +++
 Posterior thalamic nucleus + + ++
 Centrolateral nucleus ++ ++ ++
 Parafascicular nucleus ++ ++ +++ +++ ++
 Lateral geniculate nucleus, dorsal ++ + +
 Lateral geniculate nucleus, ventral + + ++
 Medial geniculate nucleus ++ ++ ++
 Lateroposterior nucleus + ++ ++
Habenula ++ ++ ++ ++ ++
Hypothalamus
 Preoptic nuclei ++ ++ + + ++
 Magnocellular preoptic nucleus ++ ++ ++
 Anterior hypothalamic area
 Lateral hypothalamic area ++ ++ ++
 Arcuate nucleus
 Ventromedial hypothalamic nucleus + + + + +
 Dorsomedial hypothalamic nucleus + + + + +
 Tuberomammillary nucleus ++ ++ ++
 Premammillary nucleus + + + + +
 Medial mammillary nucleus ++ ++ ++ ++ ++
 Lateral mammillary nucleus ++ ++ ++ ++
 Magnocellular nucleus of lateral hypothalamus
 Zona incerta ++ ++ ++ ++ ++
Brainstem
Reticular formation and related tegmental nuclei
 Medullary reticular formation ++ +++ +++
 Gigantocellular reticular nucleus ++ +++ +++ +++ +++
 Paragigantocellular reticular nucleus ++ +++ +++
 Intermediate reticular nucleus ++ ++ ++
 Parvocellular reticular nucleus ++ ++ ++ ++ ++
 Pontine reticular formation +++ +++ +++ +++ +++
 Dorsomedial tegmental field + + ++
 Laterodorsal tegmental nuclei ++ ++ ++
Dorsal tegmental nucleus + ++ ++
Monoaminergic systems
 Dorsal raphe nucleus ++ ++
 Locus coeruleus
 Ventral tegmental area
Nuclei associated with respiratory, cardiovascular, and other autonomic functions
 Nucleus of the solitary tract + + + + +
 Parabrachial nucleus ++ ++ ++
 Dorsal motor nucleus of vagus
 Ambiguus nucleus +++ +++ +++
Orofacial motor nuclei
 Motor trigeminal nucleus +++ +++ +++ +++ +++
 Facial nucleus + +++ +++ +++ +++
 Hypoglossal nucleus ++ +++ +++ +++ +++
Nuclei belonging to the somatosensory system
 Gracile/cuneate nucleus +++ +++ +++ +++ +++
 Principal sensory trigeminal nucleus +++ +++ +++ +++ +++
 Spinal trigeminal nucleus +++ +++ +++ +++ +++
Nuclei belonging to the auditory system
 Cochlear nuclei +++ +++ +++ +++ +++
 Lateral superior olive ++ ++ +++ +++ +++
 Nucleus trapezoid body +++ +++ +++ +++ +++
 Nuclei of the lateral lemniscus ++ ++ +++ +++ +++
 Inferior colliculus +++ +++ ++ ++ ++
Nuclei belonging to the visual system
 Superior colliculus ++ ++ ++ ++ ++
 Parabigeminal nucleus ++ ++ ++ +++ +++
Vestibular and precerebellar nuclei
 Vestibular nuclei +++ +++ +++ +++ +++
 Pontine nuclei +++ +++ +++ +++ +++
 Inferior olivary nucleus +++ +++ +++ +++ +++
 Red nucleus ++ ++ ++ ++ ++
Cerebellum
 Deep nuclei ++ ++ ++ +++ +++
 Purkinje cells +++ +++ +++ +++ ++
 Golgi cells
 Granule cells + ++ ++
1

+++, strong; ++, moderate; +, weak; −, signals very low or below the threshold limit of detection; np, not present; •, not clearly identifiable.