Results 121 to 130 of about 2,770 (150)

Morphometric analysis of interspecific and microgeographic variation of crayfish from a Mexican cave

Biological Journal of the Linnean Society, 1992
Two undescribed species of Procambarus crayfish (Crustacea, Decapoda) inhabit the subterranean stream running in the recently explored Cueva de Los Camarones, Chiapas, Mexico. Individuals ranging from dark, robust, large-eyed forms with an epigean mien to pale, comparatively slender, microphthalmic ones resembling related troglobites were found, but ...
ALLEGRUCCI, GIULIANA, Baldari, F, CESARONI, DONATELLA, Thorpe, RS, SBORDONI, VALERIO   +4 more
openaire   +3 more sources

A neuropeptide family from the sinus gland of the Mexican crayfish, Procambarus bouvieri (Ortmann)

Aquaculture, 1995
Abstract The main neuroendocrine axis of crustaceans is constituted by the brain, medulla terminalis X-organ (MTXO) -sinus gland (SG) system. A variety of hormonal peptides are synthesized in the MTXO where the peptidergic neuronal somata are situated.
Alberto Huberman, Manuel B. Aguilar, L.Scott Quackenbush   +2 more
openaire   +1 more source

Complete primary structure of the molt-inhibiting hormone (MIH) of the Mexican crayfish Procambarus bouvieri (Ortmann)

Peptides, 1996
The amino acid sequence of MIH was elucidated by means of digestions with specific proteases, manual Edman degradation, and mass spectrometry. MIH consists of a 72-residue peptide chain (molecular mass 8322 Da) with six cysteines forming three disulfide bridges that connect residues 7-43, 23-39, and 26-52.
M B, Aguilar, R, Falchetto, J, Shabanowitz, D F, Hunt, A, Huberman   +4 more
openaire   +2 more sources

Identification, purification and initial characterization of the vitellogenesis-inhibiting hormone from the Mexican crayfish Procambarus bouvieri (Ortmann)

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1992
Abstract 1. 1. By means of a single step of RP-HPLC on μBondapak-Phenyl column, a neuropeptid with vutellogenesis-inhibiting hormone (VIH) activity was isolated from a crude extract of sinus glands (SG) of the crayfish P. bouvieri. The yield was 5.4 ng/SG. 2. 2.
Manuel B. Aguilar, L.Scott Quackenbush, Donald T. Hunt, Jeffrey Shabanowitz, Alberto Huberman   +4 more
openaire   +1 more source

A neuropeptide with molt-inhibiting hormone activity from the sinus gland of the mexican crayfish Procambarus bouvieri (Ortmann)

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1989
Abstract 1. 1. By means of reverse-phase high-performance liquid chromatography (RP-HPLC) on a μBondapak-Phenyl column, a neuropeptide with molt-inhibiting hormone (MIH) activity was isolated from a crude extract of 2000 sinus glands from the crayfish Procambarus bouvieri (Ortmann) with a yield of 25 ng/SG. 2. 2.
Alberto Huberman, Manuel B. Aguilar
openaire   +1 more source

A neurosecretory hyperglycemic hormone from the sinus gland of the mexican crayfish Procambarus bouvieri (ortmann)—II. Structural comparison of two isoforms of the hormone

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1988
1. The hyperglycemic activity of a crude extract of Procambarus bouvieri (Ortmann) sinus glands was resolved into two UV-absorbing peaks by means of a single step of reverse-phase high performance liquid chromatography (RP-HPLC) on a mu-Bondapak-Phenyl column.
A, Huberman, M B, Aguilar
openaire   +2 more sources

Primary structure of the major isomorph of the crustacean hyperglycemic hormone (CHH-I) from the sinus gland of the Mexican crayfish Procambarus bouvieri (Ortmann): Interspecies comparison

Peptides, 1993
The amino acid sequence of this neuropeptide was elucidated by means of a combined approach of enzymatic digestions, manual and automatic Edman degradations, and mass spectrometry. It is a 72 residue peptide (molecular mass 8388 Da), with six cysteines forming three disulfide bridges connecting residues 7-43, 23-39, and 26-52, with blocked N- and C ...
A, Huberman, M B, Aguilar, K, Brew, J, Shabanowitz, D F, Hunt   +4 more
openaire   +2 more sources

Amino acid sequence of the minor isomorph of the crustacean hyperglycemic hormone (CHH-II) of the Mexican crayfish Procambarus bouvieri (Ortmann): Presence of a d-amino acid

Peptides, 1995
The primary structure of the neurohormone crustacean hyperglycemic hormone (CHH-II) was determined by means of enzymatic digestions, manual Edman degradation, and mass spectrometry. CHH-II is a 72 residue peptide (molecular mass 8388 Da), with six cysteines forming three disulfide bridges that connect residues 7-43, 23-39, and 26-52.
M B, Aguilar, D, Soyez, R, Falchetto, D, Arnott, J, Shabanowitz, D F, Hunt, A, Huberman   +6 more
openaire   +2 more sources

A neurosecretoru hyperglycemic hormone from the sinus gland of the mexican crayfish Procambarus bouvieri (Ortmann)—I. Purification and biochemical characterization of the most abundant form of the hormone

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1986
Abstract 1. 1. The hyperglycemic activity of a crude extract (CE) from the sinus gland (SG) of Procambarus bouvieri (Ortmann) was recovered as a single asymmetric peak by means of reverse phase high performance liquid chromatography (RP-HPLC) on a Nova-Pak C 18 column.
Alberto Huberman, Manuel B. Aguilar
openaire   +1 more source

The genome that fuelled a Mexican scientific revolution

Nature Reviews Genetics, 2022
Carla Daniela Robles Espinoza
exaly